./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_spec8_product15.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_spec8_product15.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 b1bbd85396e3eb1de7562114efc1b104d28592355874c6166c296894ed6f999d --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 00:55:31,866 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 00:55:31,953 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 00:55:31,960 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 00:55:31,960 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 00:55:31,991 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 00:55:31,991 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 00:55:31,992 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 00:55:31,992 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 00:55:31,993 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 00:55:31,993 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 00:55:31,994 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 00:55:31,995 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 00:55:31,999 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 00:55:31,999 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 00:55:31,999 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 00:55:32,000 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 00:55:32,000 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 00:55:32,000 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 00:55:32,002 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 00:55:32,002 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 00:55:32,002 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 00:55:32,003 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 00:55:32,003 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 00:55:32,003 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 00:55:32,003 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 00:55:32,003 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 00:55:32,004 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 00:55:32,004 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 00:55:32,004 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 00:55:32,004 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 00:55:32,005 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 00:55:32,005 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 00:55:32,005 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 00:55:32,005 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 00:55:32,005 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 00:55:32,006 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 00:55:32,006 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 00:55:32,008 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 00:55:32,009 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 00:55:32,009 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 00:55:32,009 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 00:55:32,010 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1bbd85396e3eb1de7562114efc1b104d28592355874c6166c296894ed6f999d [2024-10-24 00:55:32,297 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 00:55:32,319 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 00:55:32,323 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 00:55:32,324 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 00:55:32,324 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 00:55:32,326 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec8_product15.cil.c [2024-10-24 00:55:33,778 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 00:55:34,096 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 00:55:34,100 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec8_product15.cil.c [2024-10-24 00:55:34,130 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d32667aa/c6ab9138ec354237a2daf80a5da4d86d/FLAG8e7b3c2c1 [2024-10-24 00:55:34,148 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d32667aa/c6ab9138ec354237a2daf80a5da4d86d [2024-10-24 00:55:34,151 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 00:55:34,154 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 00:55:34,158 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 00:55:34,158 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 00:55:34,164 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 00:55:34,165 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:55:34" (1/1) ... [2024-10-24 00:55:34,166 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fefc099 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:55:34, skipping insertion in model container [2024-10-24 00:55:34,166 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:55:34" (1/1) ... [2024-10-24 00:55:34,241 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 00:55:34,846 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_spec8_product15.cil.c[44955,44968] [2024-10-24 00:55:34,976 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 00:55:34,993 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 00:55:35,004 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [48] [2024-10-24 00:55:35,006 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [460] [2024-10-24 00:55:35,007 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [750] [2024-10-24 00:55:35,007 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1824] [2024-10-24 00:55:35,007 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptAutoResponder_spec.i","") [2112] [2024-10-24 00:55:35,007 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2155] [2024-10-24 00:55:35,007 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2164] [2024-10-24 00:55:35,008 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2268] [2024-10-24 00:55:35,008 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2484] [2024-10-24 00:55:35,009 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2501] [2024-10-24 00:55:35,009 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2867] [2024-10-24 00:55:35,094 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_spec8_product15.cil.c[44955,44968] [2024-10-24 00:55:35,122 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 00:55:35,155 INFO L204 MainTranslator]: Completed translation [2024-10-24 00:55:35,156 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:55:35 WrapperNode [2024-10-24 00:55:35,156 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 00:55:35,157 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 00:55:35,157 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 00:55:35,157 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 00:55:35,163 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:55:35" (1/1) ... [2024-10-24 00:55:35,193 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:55:35" (1/1) ... [2024-10-24 00:55:35,248 INFO L138 Inliner]: procedures = 126, calls = 185, calls flagged for inlining = 55, calls inlined = 46, statements flattened = 892 [2024-10-24 00:55:35,252 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 00:55:35,253 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 00:55:35,254 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 00:55:35,254 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 00:55:35,270 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:55:35" (1/1) ... [2024-10-24 00:55:35,270 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:55:35" (1/1) ... [2024-10-24 00:55:35,280 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:55:35" (1/1) ... [2024-10-24 00:55:35,307 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 00:55:35,307 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:55:35" (1/1) ... [2024-10-24 00:55:35,308 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:55:35" (1/1) ... [2024-10-24 00:55:35,327 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:55:35" (1/1) ... [2024-10-24 00:55:35,343 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:55:35" (1/1) ... [2024-10-24 00:55:35,350 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:55:35" (1/1) ... [2024-10-24 00:55:35,354 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:55:35" (1/1) ... [2024-10-24 00:55:35,361 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 00:55:35,362 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 00:55:35,362 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 00:55:35,362 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 00:55:35,363 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:55:35" (1/1) ... [2024-10-24 00:55:35,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 00:55:35,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:55:35,411 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 00:55:35,415 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 00:55:35,454 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-10-24 00:55:35,455 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-10-24 00:55:35,455 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-10-24 00:55:35,455 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-10-24 00:55:35,455 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-10-24 00:55:35,455 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-10-24 00:55:35,455 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-10-24 00:55:35,455 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-10-24 00:55:35,455 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-10-24 00:55:35,455 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-10-24 00:55:35,455 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-10-24 00:55:35,456 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-10-24 00:55:35,456 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-10-24 00:55:35,456 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-10-24 00:55:35,456 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-10-24 00:55:35,456 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-10-24 00:55:35,456 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-10-24 00:55:35,456 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-10-24 00:55:35,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 00:55:35,456 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-10-24 00:55:35,456 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-10-24 00:55:35,456 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-10-24 00:55:35,456 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-10-24 00:55:35,456 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-10-24 00:55:35,457 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-10-24 00:55:35,457 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-10-24 00:55:35,457 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-10-24 00:55:35,457 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-10-24 00:55:35,457 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-10-24 00:55:35,457 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-10-24 00:55:35,457 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-10-24 00:55:35,457 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-10-24 00:55:35,457 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-10-24 00:55:35,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 00:55:35,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-24 00:55:35,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-24 00:55:35,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-24 00:55:35,458 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-10-24 00:55:35,458 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-10-24 00:55:35,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 00:55:35,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 00:55:35,639 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 00:55:35,641 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 00:55:36,495 INFO L? ?]: Removed 376 outVars from TransFormulas that were not future-live. [2024-10-24 00:55:36,496 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 00:55:36,575 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 00:55:36,576 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 00:55:36,576 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:55:36 BoogieIcfgContainer [2024-10-24 00:55:36,576 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 00:55:36,578 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 00:55:36,579 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 00:55:36,583 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 00:55:36,584 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 12:55:34" (1/3) ... [2024-10-24 00:55:36,585 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bf92b2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:55:36, skipping insertion in model container [2024-10-24 00:55:36,585 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:55:35" (2/3) ... [2024-10-24 00:55:36,586 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bf92b2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:55:36, skipping insertion in model container [2024-10-24 00:55:36,586 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:55:36" (3/3) ... [2024-10-24 00:55:36,588 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec8_product15.cil.c [2024-10-24 00:55:36,605 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 00:55:36,606 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 00:55:36,689 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 00:55:36,697 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;@7f726988, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 00:55:36,698 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 00:55:36,704 INFO L276 IsEmpty]: Start isEmpty. Operand has 262 states, 201 states have (on average 1.6119402985074627) internal successors, (324), 205 states have internal predecessors, (324), 42 states have call successors, (42), 17 states have call predecessors, (42), 17 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-24 00:55:36,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-10-24 00:55:36,720 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:55:36,721 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:55:36,722 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:55:36,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:55:36,726 INFO L85 PathProgramCache]: Analyzing trace with hash -1741689939, now seen corresponding path program 1 times [2024-10-24 00:55:36,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:55:36,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037296607] [2024-10-24 00:55:36,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:55:36,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:55:36,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:37,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:55:37,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:37,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:55:37,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:37,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:55:37,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:37,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 00:55:37,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:37,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 00:55:37,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:37,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 00:55:37,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:37,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 00:55:37,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:37,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 00:55:37,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:37,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-24 00:55:37,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:37,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 00:55:37,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:37,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-24 00:55:37,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:37,528 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-24 00:55:37,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:55:37,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037296607] [2024-10-24 00:55:37,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037296607] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:55:37,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1114425377] [2024-10-24 00:55:37,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:55:37,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:55:37,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:55:37,533 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 00:55:37,534 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 00:55:37,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:37,839 INFO L255 TraceCheckSpWp]: Trace formula consists of 901 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-24 00:55:37,848 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:55:37,871 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-24 00:55:37,872 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 00:55:37,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1114425377] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:55:37,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 00:55:37,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2024-10-24 00:55:37,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983941918] [2024-10-24 00:55:37,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:55:37,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 00:55:37,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:55:37,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 00:55:37,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 00:55:37,911 INFO L87 Difference]: Start difference. First operand has 262 states, 201 states have (on average 1.6119402985074627) internal successors, (324), 205 states have internal predecessors, (324), 42 states have call successors, (42), 17 states have call predecessors, (42), 17 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-24 00:55:37,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:55:37,991 INFO L93 Difference]: Finished difference Result 379 states and 579 transitions. [2024-10-24 00:55:37,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 00:55:37,994 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 83 [2024-10-24 00:55:37,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:55:38,011 INFO L225 Difference]: With dead ends: 379 [2024-10-24 00:55:38,011 INFO L226 Difference]: Without dead ends: 259 [2024-10-24 00:55:38,017 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 00:55:38,021 INFO L432 NwaCegarLoop]: 391 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 00:55:38,025 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 391 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 00:55:38,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2024-10-24 00:55:38,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 259. [2024-10-24 00:55:38,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 199 states have (on average 1.592964824120603) internal successors, (317), 202 states have internal predecessors, (317), 42 states have call successors, (42), 17 states have call predecessors, (42), 17 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2024-10-24 00:55:38,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 400 transitions. [2024-10-24 00:55:38,095 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 400 transitions. Word has length 83 [2024-10-24 00:55:38,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:55:38,097 INFO L471 AbstractCegarLoop]: Abstraction has 259 states and 400 transitions. [2024-10-24 00:55:38,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-24 00:55:38,097 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 400 transitions. [2024-10-24 00:55:38,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-24 00:55:38,102 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:55:38,102 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:55:38,122 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 00:55:38,306 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 00:55:38,307 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:55:38,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:55:38,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1139958611, now seen corresponding path program 1 times [2024-10-24 00:55:38,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:55:38,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621321073] [2024-10-24 00:55:38,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:55:38,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:55:38,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:38,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:55:38,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:38,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:55:38,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:38,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:55:38,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:38,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 00:55:38,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:38,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 00:55:38,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:38,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 00:55:38,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:38,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 00:55:38,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:38,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-24 00:55:38,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:38,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 00:55:38,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:38,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 00:55:38,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:38,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 00:55:38,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:38,686 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-24 00:55:38,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:55:38,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621321073] [2024-10-24 00:55:38,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621321073] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:55:38,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [132745434] [2024-10-24 00:55:38,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:55:38,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:55:38,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:55:38,690 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 00:55:38,692 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 00:55:38,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:38,995 INFO L255 TraceCheckSpWp]: Trace formula consists of 902 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-24 00:55:38,999 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:55:39,022 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-24 00:55:39,023 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 00:55:39,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [132745434] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:55:39,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 00:55:39,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-10-24 00:55:39,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553297449] [2024-10-24 00:55:39,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:55:39,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 00:55:39,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:55:39,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 00:55:39,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-24 00:55:39,026 INFO L87 Difference]: Start difference. First operand 259 states and 400 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-24 00:55:39,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:55:39,102 INFO L93 Difference]: Finished difference Result 375 states and 566 transitions. [2024-10-24 00:55:39,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 00:55:39,103 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 84 [2024-10-24 00:55:39,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:55:39,106 INFO L225 Difference]: With dead ends: 375 [2024-10-24 00:55:39,106 INFO L226 Difference]: Without dead ends: 261 [2024-10-24 00:55:39,110 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-24 00:55:39,111 INFO L432 NwaCegarLoop]: 388 mSDtfsCounter, 0 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 775 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 00:55:39,111 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 775 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 00:55:39,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2024-10-24 00:55:39,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 261. [2024-10-24 00:55:39,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 201 states have (on average 1.5870646766169154) internal successors, (319), 204 states have internal predecessors, (319), 42 states have call successors, (42), 17 states have call predecessors, (42), 17 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2024-10-24 00:55:39,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 402 transitions. [2024-10-24 00:55:39,135 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 402 transitions. Word has length 84 [2024-10-24 00:55:39,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:55:39,136 INFO L471 AbstractCegarLoop]: Abstraction has 261 states and 402 transitions. [2024-10-24 00:55:39,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-24 00:55:39,136 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 402 transitions. [2024-10-24 00:55:39,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-24 00:55:39,140 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:55:39,140 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2024-10-24 00:55:39,161 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 00:55:39,340 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 00:55:39,341 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:55:39,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:55:39,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1699159663, now seen corresponding path program 1 times [2024-10-24 00:55:39,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:55:39,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484429514] [2024-10-24 00:55:39,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:55:39,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:55:39,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:39,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:55:39,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:39,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:55:39,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:39,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:55:39,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:39,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 00:55:39,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:39,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 00:55:39,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:39,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 00:55:39,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:39,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 00:55:39,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:39,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-24 00:55:39,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:39,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-24 00:55:39,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:39,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 00:55:39,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:39,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-24 00:55:39,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:39,617 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-24 00:55:39,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:55:39,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484429514] [2024-10-24 00:55:39,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484429514] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:55:39,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [878459960] [2024-10-24 00:55:39,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:55:39,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:55:39,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:55:39,624 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 00:55:39,626 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 00:55:39,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:39,883 INFO L255 TraceCheckSpWp]: Trace formula consists of 926 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 00:55:39,891 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:55:39,917 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-24 00:55:39,917 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 00:55:39,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [878459960] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:55:39,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 00:55:39,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-10-24 00:55:39,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807892606] [2024-10-24 00:55:39,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:55:39,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 00:55:39,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:55:39,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 00:55:39,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-24 00:55:39,920 INFO L87 Difference]: Start difference. First operand 261 states and 402 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-24 00:55:39,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:55:39,986 INFO L93 Difference]: Finished difference Result 552 states and 863 transitions. [2024-10-24 00:55:39,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 00:55:39,987 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 91 [2024-10-24 00:55:39,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:55:39,990 INFO L225 Difference]: With dead ends: 552 [2024-10-24 00:55:39,992 INFO L226 Difference]: Without dead ends: 313 [2024-10-24 00:55:39,995 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-24 00:55:39,996 INFO L432 NwaCegarLoop]: 402 mSDtfsCounter, 102 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 746 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 00:55:39,996 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 746 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 00:55:39,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2024-10-24 00:55:40,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 308. [2024-10-24 00:55:40,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 237 states have (on average 1.59915611814346) internal successors, (379), 240 states have internal predecessors, (379), 53 states have call successors, (53), 17 states have call predecessors, (53), 17 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-10-24 00:55:40,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 484 transitions. [2024-10-24 00:55:40,019 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 484 transitions. Word has length 91 [2024-10-24 00:55:40,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:55:40,019 INFO L471 AbstractCegarLoop]: Abstraction has 308 states and 484 transitions. [2024-10-24 00:55:40,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-24 00:55:40,020 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 484 transitions. [2024-10-24 00:55:40,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-10-24 00:55:40,024 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:55:40,025 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2024-10-24 00:55:40,047 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 00:55:40,229 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 00:55:40,230 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:55:40,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:55:40,231 INFO L85 PathProgramCache]: Analyzing trace with hash 1692235827, now seen corresponding path program 1 times [2024-10-24 00:55:40,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:55:40,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666850487] [2024-10-24 00:55:40,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:55:40,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:55:40,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:40,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:55:40,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:40,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:55:40,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:40,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:55:40,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:40,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 00:55:40,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:40,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 00:55:40,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:40,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 00:55:40,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:40,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 00:55:40,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:40,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 00:55:40,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:40,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-24 00:55:40,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:40,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 00:55:40,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:40,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 00:55:40,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:40,508 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-24 00:55:40,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:55:40,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666850487] [2024-10-24 00:55:40,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666850487] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:55:40,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1537765997] [2024-10-24 00:55:40,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:55:40,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:55:40,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:55:40,512 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 00:55:40,514 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 00:55:40,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:40,790 INFO L255 TraceCheckSpWp]: Trace formula consists of 931 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-24 00:55:40,795 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:55:40,869 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-24 00:55:40,870 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 00:55:40,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1537765997] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:55:40,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 00:55:40,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-10-24 00:55:40,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789444651] [2024-10-24 00:55:40,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:55:40,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 00:55:40,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:55:40,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 00:55:40,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-24 00:55:40,874 INFO L87 Difference]: Start difference. First operand 308 states and 484 transitions. Second operand has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-10-24 00:55:40,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:55:40,984 INFO L93 Difference]: Finished difference Result 611 states and 962 transitions. [2024-10-24 00:55:40,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 00:55:40,985 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 92 [2024-10-24 00:55:40,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:55:40,990 INFO L225 Difference]: With dead ends: 611 [2024-10-24 00:55:40,990 INFO L226 Difference]: Without dead ends: 310 [2024-10-24 00:55:40,993 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-24 00:55:40,994 INFO L432 NwaCegarLoop]: 380 mSDtfsCounter, 2 mSDsluCounter, 1129 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1509 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 00:55:40,996 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1509 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 00:55:40,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2024-10-24 00:55:41,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 310. [2024-10-24 00:55:41,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 238 states have (on average 1.596638655462185) internal successors, (380), 242 states have internal predecessors, (380), 53 states have call successors, (53), 17 states have call predecessors, (53), 18 states have return successors, (54), 52 states have call predecessors, (54), 52 states have call successors, (54) [2024-10-24 00:55:41,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 487 transitions. [2024-10-24 00:55:41,023 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 487 transitions. Word has length 92 [2024-10-24 00:55:41,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:55:41,024 INFO L471 AbstractCegarLoop]: Abstraction has 310 states and 487 transitions. [2024-10-24 00:55:41,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-10-24 00:55:41,024 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 487 transitions. [2024-10-24 00:55:41,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-10-24 00:55:41,026 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:55:41,026 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:55:41,045 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 00:55:41,227 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 00:55:41,227 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:55:41,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:55:41,228 INFO L85 PathProgramCache]: Analyzing trace with hash -1403744790, now seen corresponding path program 1 times [2024-10-24 00:55:41,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:55:41,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098824591] [2024-10-24 00:55:41,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:55:41,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:55:41,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:41,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:55:41,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:41,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:55:41,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:41,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:55:41,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:41,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:55:41,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:41,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-24 00:55:41,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:41,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-24 00:55:41,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:41,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 00:55:41,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:41,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 00:55:41,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:41,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-24 00:55:41,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:41,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 00:55:41,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:41,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 00:55:41,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:41,514 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-24 00:55:41,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:55:41,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098824591] [2024-10-24 00:55:41,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098824591] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:55:41,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1387241541] [2024-10-24 00:55:41,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:55:41,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:55:41,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:55:41,517 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 00:55:41,519 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 00:55:41,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:41,790 INFO L255 TraceCheckSpWp]: Trace formula consists of 932 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-24 00:55:41,794 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:55:41,850 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-24 00:55:41,850 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 00:55:41,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1387241541] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:55:41,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 00:55:41,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-10-24 00:55:41,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489042194] [2024-10-24 00:55:41,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:55:41,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 00:55:41,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:55:41,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 00:55:41,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-10-24 00:55:41,853 INFO L87 Difference]: Start difference. First operand 310 states and 487 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-10-24 00:55:41,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:55:41,946 INFO L93 Difference]: Finished difference Result 613 states and 967 transitions. [2024-10-24 00:55:41,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 00:55:41,947 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 93 [2024-10-24 00:55:41,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:55:41,949 INFO L225 Difference]: With dead ends: 613 [2024-10-24 00:55:41,949 INFO L226 Difference]: Without dead ends: 312 [2024-10-24 00:55:41,951 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-10-24 00:55:41,951 INFO L432 NwaCegarLoop]: 378 mSDtfsCounter, 2 mSDsluCounter, 1117 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1495 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 00:55:41,952 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1495 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 00:55:41,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2024-10-24 00:55:41,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 312. [2024-10-24 00:55:41,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 239 states have (on average 1.594142259414226) internal successors, (381), 244 states have internal predecessors, (381), 53 states have call successors, (53), 17 states have call predecessors, (53), 19 states have return successors, (59), 52 states have call predecessors, (59), 52 states have call successors, (59) [2024-10-24 00:55:41,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 493 transitions. [2024-10-24 00:55:41,966 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 493 transitions. Word has length 93 [2024-10-24 00:55:41,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:55:41,966 INFO L471 AbstractCegarLoop]: Abstraction has 312 states and 493 transitions. [2024-10-24 00:55:41,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-10-24 00:55:41,967 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 493 transitions. [2024-10-24 00:55:41,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-10-24 00:55:41,968 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:55:41,969 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:55:41,983 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 00:55:42,172 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 00:55:42,173 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:55:42,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:55:42,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1763049905, now seen corresponding path program 1 times [2024-10-24 00:55:42,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:55:42,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173872108] [2024-10-24 00:55:42,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:55:42,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:55:42,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:42,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:55:42,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:42,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:55:42,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:42,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:55:42,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:42,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:55:42,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:42,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:55:42,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:42,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 00:55:42,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:42,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 00:55:42,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:42,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-24 00:55:42,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:42,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-24 00:55:42,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:42,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 00:55:42,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:42,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 00:55:42,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:42,373 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-24 00:55:42,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:55:42,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173872108] [2024-10-24 00:55:42,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173872108] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:55:42,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:55:42,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 00:55:42,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647592849] [2024-10-24 00:55:42,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:55:42,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 00:55:42,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:55:42,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 00:55:42,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 00:55:42,375 INFO L87 Difference]: Start difference. First operand 312 states and 493 transitions. Second operand has 9 states, 8 states have (on average 7.375) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-10-24 00:55:43,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:55:43,939 INFO L93 Difference]: Finished difference Result 674 states and 1076 transitions. [2024-10-24 00:55:43,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 00:55:43,940 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.375) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 94 [2024-10-24 00:55:43,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:55:43,943 INFO L225 Difference]: With dead ends: 674 [2024-10-24 00:55:43,944 INFO L226 Difference]: Without dead ends: 381 [2024-10-24 00:55:43,945 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-24 00:55:43,946 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 810 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 1726 mSolverCounterSat, 247 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 811 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 1973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 247 IncrementalHoareTripleChecker+Valid, 1726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-24 00:55:43,946 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [811 Valid, 968 Invalid, 1973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [247 Valid, 1726 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-24 00:55:43,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2024-10-24 00:55:43,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 312. [2024-10-24 00:55:43,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 239 states have (on average 1.594142259414226) internal successors, (381), 244 states have internal predecessors, (381), 53 states have call successors, (53), 17 states have call predecessors, (53), 19 states have return successors, (58), 52 states have call predecessors, (58), 52 states have call successors, (58) [2024-10-24 00:55:43,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 492 transitions. [2024-10-24 00:55:43,991 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 492 transitions. Word has length 94 [2024-10-24 00:55:43,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:55:43,993 INFO L471 AbstractCegarLoop]: Abstraction has 312 states and 492 transitions. [2024-10-24 00:55:43,993 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.375) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-10-24 00:55:43,993 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 492 transitions. [2024-10-24 00:55:43,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-24 00:55:43,995 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:55:43,995 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:55:43,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 00:55:43,995 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:55:43,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:55:43,996 INFO L85 PathProgramCache]: Analyzing trace with hash -914948982, now seen corresponding path program 2 times [2024-10-24 00:55:43,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:55:43,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897479330] [2024-10-24 00:55:43,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:55:43,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:55:44,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:44,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:55:44,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:44,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:55:44,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:44,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:55:44,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:44,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:55:44,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:44,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:55:44,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:44,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 00:55:44,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:44,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-24 00:55:44,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:44,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-24 00:55:44,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:44,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 00:55:44,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:44,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 00:55:44,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:44,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-24 00:55:44,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:44,199 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-24 00:55:44,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:55:44,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897479330] [2024-10-24 00:55:44,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897479330] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:55:44,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:55:44,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 00:55:44,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75917767] [2024-10-24 00:55:44,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:55:44,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 00:55:44,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:55:44,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 00:55:44,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 00:55:44,203 INFO L87 Difference]: Start difference. First operand 312 states and 492 transitions. Second operand has 9 states, 8 states have (on average 7.5) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-10-24 00:55:45,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:55:45,596 INFO L93 Difference]: Finished difference Result 676 states and 1079 transitions. [2024-10-24 00:55:45,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 00:55:45,597 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.5) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 95 [2024-10-24 00:55:45,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:55:45,600 INFO L225 Difference]: With dead ends: 676 [2024-10-24 00:55:45,600 INFO L226 Difference]: Without dead ends: 383 [2024-10-24 00:55:45,602 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-24 00:55:45,602 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 806 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 1739 mSolverCounterSat, 246 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 807 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 1985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 246 IncrementalHoareTripleChecker+Valid, 1739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-24 00:55:45,603 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [807 Valid, 968 Invalid, 1985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [246 Valid, 1739 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-24 00:55:45,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2024-10-24 00:55:45,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 314. [2024-10-24 00:55:45,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 240 states have (on average 1.5916666666666666) internal successors, (382), 246 states have internal predecessors, (382), 53 states have call successors, (53), 17 states have call predecessors, (53), 20 states have return successors, (60), 52 states have call predecessors, (60), 52 states have call successors, (60) [2024-10-24 00:55:45,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 495 transitions. [2024-10-24 00:55:45,633 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 495 transitions. Word has length 95 [2024-10-24 00:55:45,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:55:45,633 INFO L471 AbstractCegarLoop]: Abstraction has 314 states and 495 transitions. [2024-10-24 00:55:45,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.5) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-10-24 00:55:45,634 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 495 transitions. [2024-10-24 00:55:45,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-10-24 00:55:45,635 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:55:45,636 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:55:45,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 00:55:45,636 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:55:45,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:55:45,637 INFO L85 PathProgramCache]: Analyzing trace with hash -317034452, now seen corresponding path program 1 times [2024-10-24 00:55:45,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:55:45,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304412290] [2024-10-24 00:55:45,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:55:45,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:55:45,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:45,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:55:45,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:45,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:55:45,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:45,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:55:45,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:45,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:55:45,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:45,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:55:45,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:45,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:55:45,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:45,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-24 00:55:45,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:45,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-24 00:55:45,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:45,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 00:55:45,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:45,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-24 00:55:45,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:45,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 00:55:45,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:45,865 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-24 00:55:45,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:55:45,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304412290] [2024-10-24 00:55:45,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304412290] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:55:45,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:55:45,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 00:55:45,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123268494] [2024-10-24 00:55:45,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:55:45,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 00:55:45,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:55:45,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 00:55:45,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-10-24 00:55:45,869 INFO L87 Difference]: Start difference. First operand 314 states and 495 transitions. Second operand has 12 states, 11 states have (on average 5.818181818181818) internal successors, (64), 8 states have internal predecessors, (64), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2024-10-24 00:55:47,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:55:47,875 INFO L93 Difference]: Finished difference Result 674 states and 1074 transitions. [2024-10-24 00:55:47,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 00:55:47,876 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.818181818181818) internal successors, (64), 8 states have internal predecessors, (64), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) Word has length 96 [2024-10-24 00:55:47,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:55:47,879 INFO L225 Difference]: With dead ends: 674 [2024-10-24 00:55:47,879 INFO L226 Difference]: Without dead ends: 383 [2024-10-24 00:55:47,880 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-10-24 00:55:47,881 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 810 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 2879 mSolverCounterSat, 253 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 811 SdHoareTripleChecker+Valid, 1343 SdHoareTripleChecker+Invalid, 3132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 253 IncrementalHoareTripleChecker+Valid, 2879 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-24 00:55:47,881 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [811 Valid, 1343 Invalid, 3132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [253 Valid, 2879 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-24 00:55:47,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2024-10-24 00:55:47,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 314. [2024-10-24 00:55:47,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 240 states have (on average 1.5916666666666666) internal successors, (382), 246 states have internal predecessors, (382), 53 states have call successors, (53), 17 states have call predecessors, (53), 20 states have return successors, (59), 52 states have call predecessors, (59), 52 states have call successors, (59) [2024-10-24 00:55:47,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 494 transitions. [2024-10-24 00:55:47,919 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 494 transitions. Word has length 96 [2024-10-24 00:55:47,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:55:47,920 INFO L471 AbstractCegarLoop]: Abstraction has 314 states and 494 transitions. [2024-10-24 00:55:47,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.818181818181818) internal successors, (64), 8 states have internal predecessors, (64), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2024-10-24 00:55:47,920 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 494 transitions. [2024-10-24 00:55:47,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-10-24 00:55:47,922 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:55:47,922 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:55:47,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 00:55:47,923 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:55:47,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:55:47,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1573441839, now seen corresponding path program 2 times [2024-10-24 00:55:47,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:55:47,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391467801] [2024-10-24 00:55:47,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:55:47,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:55:47,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:48,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:55:48,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:48,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:55:48,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:48,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:55:48,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:48,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:55:48,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:48,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:55:48,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:48,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:55:48,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:48,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 00:55:48,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:48,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-24 00:55:48,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:48,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 00:55:48,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:48,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-24 00:55:48,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:48,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 00:55:48,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:48,142 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-24 00:55:48,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:55:48,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391467801] [2024-10-24 00:55:48,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391467801] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:55:48,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:55:48,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 00:55:48,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962887645] [2024-10-24 00:55:48,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:55:48,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 00:55:48,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:55:48,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 00:55:48,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-10-24 00:55:48,145 INFO L87 Difference]: Start difference. First operand 314 states and 494 transitions. Second operand has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 8 states have internal predecessors, (65), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2024-10-24 00:55:50,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:55:50,132 INFO L93 Difference]: Finished difference Result 676 states and 1080 transitions. [2024-10-24 00:55:50,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 00:55:50,132 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 8 states have internal predecessors, (65), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) Word has length 97 [2024-10-24 00:55:50,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:55:50,135 INFO L225 Difference]: With dead ends: 676 [2024-10-24 00:55:50,136 INFO L226 Difference]: Without dead ends: 385 [2024-10-24 00:55:50,138 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-10-24 00:55:50,140 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 806 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 2915 mSolverCounterSat, 250 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 807 SdHoareTripleChecker+Valid, 1344 SdHoareTripleChecker+Invalid, 3165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 250 IncrementalHoareTripleChecker+Valid, 2915 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-24 00:55:50,141 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [807 Valid, 1344 Invalid, 3165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [250 Valid, 2915 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-24 00:55:50,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2024-10-24 00:55:50,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 316. [2024-10-24 00:55:50,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 241 states have (on average 1.5892116182572613) internal successors, (383), 248 states have internal predecessors, (383), 53 states have call successors, (53), 17 states have call predecessors, (53), 21 states have return successors, (64), 52 states have call predecessors, (64), 52 states have call successors, (64) [2024-10-24 00:55:50,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 500 transitions. [2024-10-24 00:55:50,168 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 500 transitions. Word has length 97 [2024-10-24 00:55:50,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:55:50,168 INFO L471 AbstractCegarLoop]: Abstraction has 316 states and 500 transitions. [2024-10-24 00:55:50,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 8 states have internal predecessors, (65), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2024-10-24 00:55:50,169 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 500 transitions. [2024-10-24 00:55:50,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-10-24 00:55:50,170 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:55:50,170 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:55:50,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 00:55:50,171 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:55:50,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:55:50,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1364441191, now seen corresponding path program 1 times [2024-10-24 00:55:50,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:55:50,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054838712] [2024-10-24 00:55:50,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:55:50,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:55:50,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:50,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:55:50,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:50,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:55:50,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:50,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:55:50,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:50,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:55:50,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:50,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:55:50,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:50,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:55:50,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:50,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 00:55:50,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:50,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 00:55:50,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:50,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-24 00:55:50,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:50,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-24 00:55:50,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:50,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 00:55:50,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:50,403 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-10-24 00:55:50,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:55:50,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054838712] [2024-10-24 00:55:50,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054838712] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:55:50,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [537746221] [2024-10-24 00:55:50,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:55:50,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:55:50,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:55:50,406 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 00:55:50,407 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 00:55:50,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:50,646 INFO L255 TraceCheckSpWp]: Trace formula consists of 937 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 00:55:50,649 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:55:50,689 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-24 00:55:50,689 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 00:55:50,773 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-24 00:55:50,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [537746221] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 00:55:50,774 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 00:55:50,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2024-10-24 00:55:50,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032394008] [2024-10-24 00:55:50,774 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 00:55:50,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-24 00:55:50,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:55:50,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-24 00:55:50,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-10-24 00:55:50,776 INFO L87 Difference]: Start difference. First operand 316 states and 500 transitions. Second operand has 15 states, 14 states have (on average 7.642857142857143) internal successors, (107), 11 states have internal predecessors, (107), 4 states have call successors, (27), 6 states have call predecessors, (27), 3 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2024-10-24 00:55:53,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:55:53,018 INFO L93 Difference]: Finished difference Result 1005 states and 1691 transitions. [2024-10-24 00:55:53,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-24 00:55:53,019 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 7.642857142857143) internal successors, (107), 11 states have internal predecessors, (107), 4 states have call successors, (27), 6 states have call predecessors, (27), 3 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) Word has length 98 [2024-10-24 00:55:53,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:55:53,024 INFO L225 Difference]: With dead ends: 1005 [2024-10-24 00:55:53,024 INFO L226 Difference]: Without dead ends: 715 [2024-10-24 00:55:53,026 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=164, Invalid=828, Unknown=0, NotChecked=0, Total=992 [2024-10-24 00:55:53,026 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 1758 mSDsluCounter, 1390 mSDsCounter, 0 mSdLazyCounter, 3312 mSolverCounterSat, 514 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1775 SdHoareTripleChecker+Valid, 1546 SdHoareTripleChecker+Invalid, 3826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 514 IncrementalHoareTripleChecker+Valid, 3312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-24 00:55:53,027 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1775 Valid, 1546 Invalid, 3826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [514 Valid, 3312 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-24 00:55:53,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 715 states. [2024-10-24 00:55:53,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 715 to 631. [2024-10-24 00:55:53,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 631 states, 492 states have (on average 1.6280487804878048) internal successors, (801), 499 states have internal predecessors, (801), 117 states have call successors, (117), 17 states have call predecessors, (117), 21 states have return successors, (138), 116 states have call predecessors, (138), 116 states have call successors, (138) [2024-10-24 00:55:53,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 1056 transitions. [2024-10-24 00:55:53,066 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 1056 transitions. Word has length 98 [2024-10-24 00:55:53,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:55:53,067 INFO L471 AbstractCegarLoop]: Abstraction has 631 states and 1056 transitions. [2024-10-24 00:55:53,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 7.642857142857143) internal successors, (107), 11 states have internal predecessors, (107), 4 states have call successors, (27), 6 states have call predecessors, (27), 3 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2024-10-24 00:55:53,067 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 1056 transitions. [2024-10-24 00:55:53,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-10-24 00:55:53,070 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:55:53,070 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:55:53,090 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 00:55:53,271 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 00:55:53,272 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:55:53,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:55:53,273 INFO L85 PathProgramCache]: Analyzing trace with hash -55467455, now seen corresponding path program 1 times [2024-10-24 00:55:53,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:55:53,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332001542] [2024-10-24 00:55:53,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:55:53,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:55:53,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:53,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:55:53,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:53,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:55:53,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:53,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:55:53,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:53,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:55:53,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:53,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:55:53,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:53,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:55:53,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:53,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-24 00:55:53,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:53,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-24 00:55:53,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:53,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 00:55:53,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:53,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-24 00:55:53,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:53,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-24 00:55:53,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:53,385 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-24 00:55:53,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:55:53,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332001542] [2024-10-24 00:55:53,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332001542] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:55:53,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:55:53,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:55:53,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713728074] [2024-10-24 00:55:53,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:55:53,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:55:53,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:55:53,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:55:53,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:55:53,388 INFO L87 Difference]: Start difference. First operand 631 states and 1056 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-24 00:55:54,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:55:54,460 INFO L93 Difference]: Finished difference Result 1560 states and 2680 transitions. [2024-10-24 00:55:54,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:55:54,461 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 102 [2024-10-24 00:55:54,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:55:54,468 INFO L225 Difference]: With dead ends: 1560 [2024-10-24 00:55:54,468 INFO L226 Difference]: Without dead ends: 997 [2024-10-24 00:55:54,470 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:55:54,471 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 904 mSDsluCounter, 560 mSDsCounter, 0 mSdLazyCounter, 1005 mSolverCounterSat, 306 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 919 SdHoareTripleChecker+Valid, 731 SdHoareTripleChecker+Invalid, 1311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 306 IncrementalHoareTripleChecker+Valid, 1005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 00:55:54,471 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [919 Valid, 731 Invalid, 1311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [306 Valid, 1005 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 00:55:54,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 997 states. [2024-10-24 00:55:54,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 997 to 923. [2024-10-24 00:55:54,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 923 states, 720 states have (on average 1.636111111111111) internal successors, (1178), 727 states have internal predecessors, (1178), 181 states have call successors, (181), 17 states have call predecessors, (181), 21 states have return successors, (212), 180 states have call predecessors, (212), 180 states have call successors, (212) [2024-10-24 00:55:54,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 923 states to 923 states and 1571 transitions. [2024-10-24 00:55:54,521 INFO L78 Accepts]: Start accepts. Automaton has 923 states and 1571 transitions. Word has length 102 [2024-10-24 00:55:54,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:55:54,522 INFO L471 AbstractCegarLoop]: Abstraction has 923 states and 1571 transitions. [2024-10-24 00:55:54,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-24 00:55:54,522 INFO L276 IsEmpty]: Start isEmpty. Operand 923 states and 1571 transitions. [2024-10-24 00:55:54,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-10-24 00:55:54,526 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:55:54,527 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:55:54,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 00:55:54,527 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:55:54,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:55:54,528 INFO L85 PathProgramCache]: Analyzing trace with hash -2118607118, now seen corresponding path program 1 times [2024-10-24 00:55:54,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:55:54,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913824856] [2024-10-24 00:55:54,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:55:54,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:55:54,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:54,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:55:54,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:54,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:55:54,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:54,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:55:54,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:54,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:55:54,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:54,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:55:54,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:54,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:55:54,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:54,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 00:55:54,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:54,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 00:55:54,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:54,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-24 00:55:54,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:54,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 00:55:54,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:54,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 00:55:54,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:54,649 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-24 00:55:54,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:55:54,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913824856] [2024-10-24 00:55:54,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913824856] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:55:54,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:55:54,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:55:54,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004276555] [2024-10-24 00:55:54,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:55:54,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:55:54,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:55:54,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:55:54,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:55:54,651 INFO L87 Difference]: Start difference. First operand 923 states and 1571 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-24 00:55:55,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:55:55,854 INFO L93 Difference]: Finished difference Result 2277 states and 3937 transitions. [2024-10-24 00:55:55,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:55:55,855 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 103 [2024-10-24 00:55:55,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:55:55,865 INFO L225 Difference]: With dead ends: 2277 [2024-10-24 00:55:55,865 INFO L226 Difference]: Without dead ends: 1472 [2024-10-24 00:55:55,869 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:55:55,870 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 902 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 994 mSolverCounterSat, 306 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 917 SdHoareTripleChecker+Valid, 711 SdHoareTripleChecker+Invalid, 1300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 306 IncrementalHoareTripleChecker+Valid, 994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 00:55:55,870 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [917 Valid, 711 Invalid, 1300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [306 Valid, 994 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 00:55:55,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1472 states. [2024-10-24 00:55:55,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1472 to 1398. [2024-10-24 00:55:55,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1398 states, 1100 states have (on average 1.6381818181818182) internal successors, (1802), 1107 states have internal predecessors, (1802), 276 states have call successors, (276), 17 states have call predecessors, (276), 21 states have return successors, (307), 275 states have call predecessors, (307), 275 states have call successors, (307) [2024-10-24 00:55:55,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1398 states to 1398 states and 2385 transitions. [2024-10-24 00:55:55,948 INFO L78 Accepts]: Start accepts. Automaton has 1398 states and 2385 transitions. Word has length 103 [2024-10-24 00:55:55,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:55:55,948 INFO L471 AbstractCegarLoop]: Abstraction has 1398 states and 2385 transitions. [2024-10-24 00:55:55,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-24 00:55:55,949 INFO L276 IsEmpty]: Start isEmpty. Operand 1398 states and 2385 transitions. [2024-10-24 00:55:55,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-10-24 00:55:55,955 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:55:55,955 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:55:55,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 00:55:55,955 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:55:55,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:55:55,956 INFO L85 PathProgramCache]: Analyzing trace with hash 836431187, now seen corresponding path program 1 times [2024-10-24 00:55:55,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:55:55,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401224491] [2024-10-24 00:55:55,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:55:55,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:55:55,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:56,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:55:56,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:56,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:55:56,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:56,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:55:56,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:56,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:55:56,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:56,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:55:56,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:56,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:55:56,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:56,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-24 00:55:56,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:56,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 00:55:56,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:56,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 00:55:56,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:56,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 00:55:56,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:56,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 00:55:56,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:56,066 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-24 00:55:56,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:55:56,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401224491] [2024-10-24 00:55:56,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401224491] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:55:56,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:55:56,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:55:56,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300667049] [2024-10-24 00:55:56,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:55:56,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:55:56,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:55:56,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:55:56,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:55:56,069 INFO L87 Difference]: Start difference. First operand 1398 states and 2385 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-24 00:55:57,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:55:57,255 INFO L93 Difference]: Finished difference Result 3339 states and 5815 transitions. [2024-10-24 00:55:57,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:55:57,256 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 104 [2024-10-24 00:55:57,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:55:57,269 INFO L225 Difference]: With dead ends: 3339 [2024-10-24 00:55:57,270 INFO L226 Difference]: Without dead ends: 2187 [2024-10-24 00:55:57,276 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:55:57,277 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 900 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 988 mSolverCounterSat, 299 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 915 SdHoareTripleChecker+Valid, 705 SdHoareTripleChecker+Invalid, 1287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 299 IncrementalHoareTripleChecker+Valid, 988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 00:55:57,277 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [915 Valid, 705 Invalid, 1287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [299 Valid, 988 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 00:55:57,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2187 states. [2024-10-24 00:55:57,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2187 to 2113. [2024-10-24 00:55:57,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2113 states, 1692 states have (on average 1.6406619385342789) internal successors, (2776), 1699 states have internal predecessors, (2776), 399 states have call successors, (399), 17 states have call predecessors, (399), 21 states have return successors, (446), 398 states have call predecessors, (446), 398 states have call successors, (446) [2024-10-24 00:55:57,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2113 states to 2113 states and 3621 transitions. [2024-10-24 00:55:57,435 INFO L78 Accepts]: Start accepts. Automaton has 2113 states and 3621 transitions. Word has length 104 [2024-10-24 00:55:57,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:55:57,436 INFO L471 AbstractCegarLoop]: Abstraction has 2113 states and 3621 transitions. [2024-10-24 00:55:57,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-24 00:55:57,436 INFO L276 IsEmpty]: Start isEmpty. Operand 2113 states and 3621 transitions. [2024-10-24 00:55:57,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-10-24 00:55:57,447 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:55:57,447 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:55:57,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 00:55:57,447 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:55:57,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:55:57,448 INFO L85 PathProgramCache]: Analyzing trace with hash -129898671, now seen corresponding path program 1 times [2024-10-24 00:55:57,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:55:57,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933205746] [2024-10-24 00:55:57,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:55:57,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:55:57,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:57,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:55:57,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:57,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:55:57,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:57,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:55:57,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:57,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:55:57,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:57,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:55:57,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:57,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:55:57,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:57,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-24 00:55:57,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:57,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 00:55:57,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:57,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 00:55:57,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:57,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 00:55:57,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:57,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-24 00:55:57,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:57,571 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-24 00:55:57,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:55:57,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933205746] [2024-10-24 00:55:57,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933205746] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:55:57,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:55:57,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:55:57,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150893523] [2024-10-24 00:55:57,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:55:57,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:55:57,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:55:57,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:55:57,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:55:57,574 INFO L87 Difference]: Start difference. First operand 2113 states and 3621 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-24 00:55:58,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:55:58,702 INFO L93 Difference]: Finished difference Result 4981 states and 8728 transitions. [2024-10-24 00:55:58,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:55:58,703 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 105 [2024-10-24 00:55:58,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:55:58,722 INFO L225 Difference]: With dead ends: 4981 [2024-10-24 00:55:58,722 INFO L226 Difference]: Without dead ends: 3323 [2024-10-24 00:55:58,728 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:55:58,729 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 898 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 978 mSolverCounterSat, 298 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 913 SdHoareTripleChecker+Valid, 702 SdHoareTripleChecker+Invalid, 1276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 298 IncrementalHoareTripleChecker+Valid, 978 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 00:55:58,730 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [913 Valid, 702 Invalid, 1276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [298 Valid, 978 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 00:55:58,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3323 states. [2024-10-24 00:55:58,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3323 to 3249. [2024-10-24 00:55:58,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3249 states, 2649 states have (on average 1.6421291053227633) internal successors, (4350), 2656 states have internal predecessors, (4350), 578 states have call successors, (578), 17 states have call predecessors, (578), 21 states have return successors, (651), 577 states have call predecessors, (651), 577 states have call successors, (651) [2024-10-24 00:55:58,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3249 states to 3249 states and 5579 transitions. [2024-10-24 00:55:58,891 INFO L78 Accepts]: Start accepts. Automaton has 3249 states and 5579 transitions. Word has length 105 [2024-10-24 00:55:58,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:55:58,891 INFO L471 AbstractCegarLoop]: Abstraction has 3249 states and 5579 transitions. [2024-10-24 00:55:58,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-24 00:55:58,892 INFO L276 IsEmpty]: Start isEmpty. Operand 3249 states and 5579 transitions. [2024-10-24 00:55:58,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-10-24 00:55:58,900 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:55:58,900 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:55:58,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 00:55:58,900 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:55:58,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:55:58,901 INFO L85 PathProgramCache]: Analyzing trace with hash 775602551, now seen corresponding path program 1 times [2024-10-24 00:55:58,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:55:58,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760644817] [2024-10-24 00:55:58,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:55:58,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:55:58,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:58,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:55:58,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:58,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:55:58,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:58,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:55:58,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:58,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:55:58,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:58,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:55:58,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:58,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:55:58,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:58,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-24 00:55:58,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:58,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-24 00:55:58,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:58,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 00:55:58,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:59,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 00:55:59,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:59,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 00:55:59,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:55:59,003 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-24 00:55:59,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:55:59,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760644817] [2024-10-24 00:55:59,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760644817] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:55:59,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:55:59,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:55:59,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221843354] [2024-10-24 00:55:59,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:55:59,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:55:59,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:55:59,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:55:59,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:55:59,006 INFO L87 Difference]: Start difference. First operand 3249 states and 5579 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-24 00:56:00,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:56:00,239 INFO L93 Difference]: Finished difference Result 7936 states and 13926 transitions. [2024-10-24 00:56:00,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:56:00,239 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 106 [2024-10-24 00:56:00,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:56:00,272 INFO L225 Difference]: With dead ends: 7936 [2024-10-24 00:56:00,272 INFO L226 Difference]: Without dead ends: 5381 [2024-10-24 00:56:00,284 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:56:00,285 INFO L432 NwaCegarLoop]: 180 mSDtfsCounter, 896 mSDsluCounter, 574 mSDsCounter, 0 mSdLazyCounter, 1036 mSolverCounterSat, 303 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 911 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 1339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 303 IncrementalHoareTripleChecker+Valid, 1036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 00:56:00,285 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [911 Valid, 754 Invalid, 1339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [303 Valid, 1036 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 00:56:00,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5381 states. [2024-10-24 00:56:00,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5381 to 5307. [2024-10-24 00:56:00,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5307 states, 4331 states have (on average 1.6331101362271994) internal successors, (7073), 4338 states have internal predecessors, (7073), 954 states have call successors, (954), 17 states have call predecessors, (954), 21 states have return successors, (1071), 953 states have call predecessors, (1071), 953 states have call successors, (1071) [2024-10-24 00:56:00,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5307 states to 5307 states and 9098 transitions. [2024-10-24 00:56:00,581 INFO L78 Accepts]: Start accepts. Automaton has 5307 states and 9098 transitions. Word has length 106 [2024-10-24 00:56:00,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:56:00,581 INFO L471 AbstractCegarLoop]: Abstraction has 5307 states and 9098 transitions. [2024-10-24 00:56:00,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-24 00:56:00,582 INFO L276 IsEmpty]: Start isEmpty. Operand 5307 states and 9098 transitions. [2024-10-24 00:56:00,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-10-24 00:56:00,593 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:56:00,593 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:56:00,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 00:56:00,594 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:56:00,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:56:00,594 INFO L85 PathProgramCache]: Analyzing trace with hash 1023834925, now seen corresponding path program 1 times [2024-10-24 00:56:00,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:56:00,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109425819] [2024-10-24 00:56:00,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:56:00,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:56:00,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:00,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:56:00,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:00,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:56:00,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:00,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:56:00,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:00,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:56:00,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:00,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:56:00,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:00,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:56:00,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:00,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-24 00:56:00,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:00,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-24 00:56:00,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:00,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 00:56:00,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:00,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 00:56:00,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:00,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-24 00:56:00,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:00,692 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-24 00:56:00,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:56:00,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109425819] [2024-10-24 00:56:00,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109425819] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:56:00,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:56:00,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:56:00,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198120670] [2024-10-24 00:56:00,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:56:00,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:56:00,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:56:00,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:56:00,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:56:00,694 INFO L87 Difference]: Start difference. First operand 5307 states and 9098 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-24 00:56:01,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:56:01,941 INFO L93 Difference]: Finished difference Result 13141 states and 23010 transitions. [2024-10-24 00:56:01,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:56:01,943 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 107 [2024-10-24 00:56:01,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:56:01,997 INFO L225 Difference]: With dead ends: 13141 [2024-10-24 00:56:01,997 INFO L226 Difference]: Without dead ends: 8914 [2024-10-24 00:56:02,069 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:56:02,070 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 894 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 984 mSolverCounterSat, 306 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 909 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 1290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 306 IncrementalHoareTripleChecker+Valid, 984 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 00:56:02,070 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [909 Valid, 709 Invalid, 1290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [306 Valid, 984 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 00:56:02,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8914 states. [2024-10-24 00:56:02,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8914 to 8840. [2024-10-24 00:56:02,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8840 states, 7258 states have (on average 1.6299255993386608) internal successors, (11830), 7265 states have internal predecessors, (11830), 1560 states have call successors, (1560), 17 states have call predecessors, (1560), 21 states have return successors, (1755), 1559 states have call predecessors, (1755), 1559 states have call successors, (1755) [2024-10-24 00:56:02,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8840 states to 8840 states and 15145 transitions. [2024-10-24 00:56:02,522 INFO L78 Accepts]: Start accepts. Automaton has 8840 states and 15145 transitions. Word has length 107 [2024-10-24 00:56:02,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:56:02,523 INFO L471 AbstractCegarLoop]: Abstraction has 8840 states and 15145 transitions. [2024-10-24 00:56:02,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-24 00:56:02,523 INFO L276 IsEmpty]: Start isEmpty. Operand 8840 states and 15145 transitions. [2024-10-24 00:56:02,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-10-24 00:56:02,547 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:56:02,547 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:56:02,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 00:56:02,548 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:56:02,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:56:02,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1055808747, now seen corresponding path program 1 times [2024-10-24 00:56:02,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:56:02,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597444398] [2024-10-24 00:56:02,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:56:02,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:56:02,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:02,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:56:02,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:02,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:56:02,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:02,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:56:02,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:02,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:56:02,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:02,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:56:02,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:02,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:56:02,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:02,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 00:56:02,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:02,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-24 00:56:02,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:02,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 00:56:02,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:02,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 00:56:02,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:02,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 00:56:02,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:02,674 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-24 00:56:02,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:56:02,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597444398] [2024-10-24 00:56:02,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597444398] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:56:02,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:56:02,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:56:02,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207594137] [2024-10-24 00:56:02,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:56:02,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:56:02,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:56:02,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:56:02,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:56:02,679 INFO L87 Difference]: Start difference. First operand 8840 states and 15145 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-24 00:56:03,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:56:03,897 INFO L93 Difference]: Finished difference Result 22913 states and 40039 transitions. [2024-10-24 00:56:03,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:56:03,898 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 108 [2024-10-24 00:56:03,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:56:04,091 INFO L225 Difference]: With dead ends: 22913 [2024-10-24 00:56:04,092 INFO L226 Difference]: Without dead ends: 15586 [2024-10-24 00:56:04,121 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:56:04,122 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 892 mSDsluCounter, 561 mSDsCounter, 0 mSdLazyCounter, 1028 mSolverCounterSat, 307 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 907 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 1335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 307 IncrementalHoareTripleChecker+Valid, 1028 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 00:56:04,122 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [907 Valid, 735 Invalid, 1335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [307 Valid, 1028 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 00:56:04,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15586 states. [2024-10-24 00:56:04,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15586 to 15512. [2024-10-24 00:56:04,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15512 states, 12727 states have (on average 1.620099002121474) internal successors, (20619), 12734 states have internal predecessors, (20619), 2763 states have call successors, (2763), 17 states have call predecessors, (2763), 21 states have return successors, (3102), 2762 states have call predecessors, (3102), 2762 states have call successors, (3102) [2024-10-24 00:56:04,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15512 states to 15512 states and 26484 transitions. [2024-10-24 00:56:04,963 INFO L78 Accepts]: Start accepts. Automaton has 15512 states and 26484 transitions. Word has length 108 [2024-10-24 00:56:04,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:56:04,964 INFO L471 AbstractCegarLoop]: Abstraction has 15512 states and 26484 transitions. [2024-10-24 00:56:04,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-24 00:56:04,965 INFO L276 IsEmpty]: Start isEmpty. Operand 15512 states and 26484 transitions. [2024-10-24 00:56:04,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-10-24 00:56:04,984 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:56:04,985 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:56:04,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-24 00:56:04,985 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:56:04,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:56:04,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1880681452, now seen corresponding path program 1 times [2024-10-24 00:56:04,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:56:04,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953372073] [2024-10-24 00:56:04,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:56:04,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:56:05,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:05,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:56:05,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:05,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:56:05,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:05,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:56:05,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:05,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:56:05,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:05,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:56:05,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:05,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:56:05,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:05,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 00:56:05,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:05,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 00:56:05,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:05,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-24 00:56:05,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:05,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-24 00:56:05,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:05,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 00:56:05,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:05,087 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-24 00:56:05,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:56:05,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953372073] [2024-10-24 00:56:05,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953372073] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:56:05,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:56:05,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:56:05,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639065865] [2024-10-24 00:56:05,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:56:05,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:56:05,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:56:05,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:56:05,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:56:05,090 INFO L87 Difference]: Start difference. First operand 15512 states and 26484 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-24 00:56:06,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:56:06,614 INFO L93 Difference]: Finished difference Result 41080 states and 71637 transitions. [2024-10-24 00:56:06,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:56:06,614 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 109 [2024-10-24 00:56:06,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:56:06,738 INFO L225 Difference]: With dead ends: 41080 [2024-10-24 00:56:06,738 INFO L226 Difference]: Without dead ends: 27701 [2024-10-24 00:56:06,780 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:56:06,780 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 890 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 997 mSolverCounterSat, 306 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 905 SdHoareTripleChecker+Valid, 706 SdHoareTripleChecker+Invalid, 1303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 306 IncrementalHoareTripleChecker+Valid, 997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 00:56:06,781 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [905 Valid, 706 Invalid, 1303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [306 Valid, 997 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 00:56:06,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27701 states. [2024-10-24 00:56:08,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27701 to 27627. [2024-10-24 00:56:08,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27627 states, 22803 states have (on average 1.6158400210498618) internal successors, (36846), 22810 states have internal predecessors, (36846), 4802 states have call successors, (4802), 17 states have call predecessors, (4802), 21 states have return successors, (5415), 4801 states have call predecessors, (5415), 4801 states have call successors, (5415) [2024-10-24 00:56:08,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27627 states to 27627 states and 47063 transitions. [2024-10-24 00:56:08,470 INFO L78 Accepts]: Start accepts. Automaton has 27627 states and 47063 transitions. Word has length 109 [2024-10-24 00:56:08,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:56:08,471 INFO L471 AbstractCegarLoop]: Abstraction has 27627 states and 47063 transitions. [2024-10-24 00:56:08,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-24 00:56:08,472 INFO L276 IsEmpty]: Start isEmpty. Operand 27627 states and 47063 transitions. [2024-10-24 00:56:08,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-10-24 00:56:08,492 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:56:08,492 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:56:08,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-24 00:56:08,492 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:56:08,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:56:08,493 INFO L85 PathProgramCache]: Analyzing trace with hash -765228973, now seen corresponding path program 1 times [2024-10-24 00:56:08,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:56:08,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042303760] [2024-10-24 00:56:08,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:56:08,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:56:08,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:08,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:56:08,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:08,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:56:08,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:08,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:56:08,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:08,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:56:08,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:08,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:56:08,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:08,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:56:08,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:08,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 00:56:08,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:08,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 00:56:08,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:08,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-24 00:56:08,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:08,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 00:56:08,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:08,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 00:56:08,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:08,590 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-24 00:56:08,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:56:08,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042303760] [2024-10-24 00:56:08,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042303760] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:56:08,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:56:08,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:56:08,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875378217] [2024-10-24 00:56:08,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:56:08,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:56:08,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:56:08,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:56:08,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:56:08,594 INFO L87 Difference]: Start difference. First operand 27627 states and 47063 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-24 00:56:10,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:56:10,727 INFO L93 Difference]: Finished difference Result 75272 states and 130431 transitions. [2024-10-24 00:56:10,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:56:10,728 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 110 [2024-10-24 00:56:10,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:56:10,987 INFO L225 Difference]: With dead ends: 75272 [2024-10-24 00:56:10,988 INFO L226 Difference]: Without dead ends: 50525 [2024-10-24 00:56:11,082 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:56:11,083 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 888 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 987 mSolverCounterSat, 306 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 903 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 1293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 306 IncrementalHoareTripleChecker+Valid, 987 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 00:56:11,083 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [903 Valid, 709 Invalid, 1293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [306 Valid, 987 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 00:56:11,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50525 states. [2024-10-24 00:56:13,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50525 to 50451. [2024-10-24 00:56:13,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50451 states, 41912 states have (on average 1.6103741171979384) internal successors, (67494), 41919 states have internal predecessors, (67494), 8517 states have call successors, (8517), 17 states have call predecessors, (8517), 21 states have return successors, (9662), 8516 states have call predecessors, (9662), 8516 states have call successors, (9662) [2024-10-24 00:56:13,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50451 states to 50451 states and 85673 transitions. [2024-10-24 00:56:13,625 INFO L78 Accepts]: Start accepts. Automaton has 50451 states and 85673 transitions. Word has length 110 [2024-10-24 00:56:13,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:56:13,626 INFO L471 AbstractCegarLoop]: Abstraction has 50451 states and 85673 transitions. [2024-10-24 00:56:13,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-24 00:56:13,626 INFO L276 IsEmpty]: Start isEmpty. Operand 50451 states and 85673 transitions. [2024-10-24 00:56:13,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-24 00:56:13,659 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:56:13,659 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:56:13,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-24 00:56:13,659 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:56:13,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:56:13,660 INFO L85 PathProgramCache]: Analyzing trace with hash 88551020, now seen corresponding path program 1 times [2024-10-24 00:56:13,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:56:13,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638585717] [2024-10-24 00:56:13,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:56:13,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:56:13,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:13,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:56:13,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:13,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:56:13,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:13,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:56:13,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:13,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:56:13,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:13,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:56:13,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:13,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:56:13,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:13,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-24 00:56:13,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:13,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-24 00:56:13,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:13,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-24 00:56:13,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:13,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 00:56:13,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:13,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-24 00:56:13,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:13,794 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-24 00:56:13,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:56:13,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638585717] [2024-10-24 00:56:13,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638585717] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:56:13,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:56:13,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:56:13,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713966934] [2024-10-24 00:56:13,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:56:13,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:56:13,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:56:13,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:56:13,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:56:13,798 INFO L87 Difference]: Start difference. First operand 50451 states and 85673 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-24 00:56:17,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:56:17,095 INFO L93 Difference]: Finished difference Result 94019 states and 163337 transitions. [2024-10-24 00:56:17,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:56:17,096 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 111 [2024-10-24 00:56:17,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:56:17,548 INFO L225 Difference]: With dead ends: 94019 [2024-10-24 00:56:17,549 INFO L226 Difference]: Without dead ends: 93905 [2024-10-24 00:56:17,589 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:56:17,591 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 883 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 1013 mSolverCounterSat, 297 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 897 SdHoareTripleChecker+Valid, 718 SdHoareTripleChecker+Invalid, 1310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 297 IncrementalHoareTripleChecker+Valid, 1013 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-24 00:56:17,592 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [897 Valid, 718 Invalid, 1310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [297 Valid, 1013 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-24 00:56:17,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93905 states. [2024-10-24 00:56:20,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93905 to 93831. [2024-10-24 00:56:20,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93831 states, 78493 states have (on average 1.6034805651459365) internal successors, (125862), 78500 states have internal predecessors, (125862), 15316 states have call successors, (15316), 17 states have call predecessors, (15316), 21 states have return successors, (17507), 15315 states have call predecessors, (17507), 15315 states have call successors, (17507) [2024-10-24 00:56:21,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93831 states to 93831 states and 158685 transitions. [2024-10-24 00:56:21,145 INFO L78 Accepts]: Start accepts. Automaton has 93831 states and 158685 transitions. Word has length 111 [2024-10-24 00:56:21,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:56:21,146 INFO L471 AbstractCegarLoop]: Abstraction has 93831 states and 158685 transitions. [2024-10-24 00:56:21,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-24 00:56:21,147 INFO L276 IsEmpty]: Start isEmpty. Operand 93831 states and 158685 transitions. [2024-10-24 00:56:21,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-10-24 00:56:21,171 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:56:21,171 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:56:21,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-24 00:56:21,171 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:56:21,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:56:21,172 INFO L85 PathProgramCache]: Analyzing trace with hash 2105182228, now seen corresponding path program 1 times [2024-10-24 00:56:21,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:56:21,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993559781] [2024-10-24 00:56:21,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:56:21,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:56:21,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:21,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:56:21,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:21,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:56:21,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:21,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:56:21,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:21,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:56:21,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:21,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:56:21,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:21,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:56:21,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:21,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-24 00:56:21,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:21,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 00:56:21,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:21,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 00:56:21,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:21,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-24 00:56:21,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:21,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 00:56:21,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:21,614 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-24 00:56:21,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:56:21,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993559781] [2024-10-24 00:56:21,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993559781] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:56:21,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:56:21,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-10-24 00:56:21,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410731522] [2024-10-24 00:56:21,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:56:21,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-24 00:56:21,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:56:21,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-24 00:56:21,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2024-10-24 00:56:21,617 INFO L87 Difference]: Start difference. First operand 93831 states and 158685 transitions. Second operand has 16 states, 15 states have (on average 5.0) internal successors, (75), 10 states have internal predecessors, (75), 5 states have call successors, (13), 7 states have call predecessors, (13), 3 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) [2024-10-24 00:56:30,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:56:30,093 INFO L93 Difference]: Finished difference Result 187155 states and 328514 transitions. [2024-10-24 00:56:30,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-10-24 00:56:30,094 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.0) internal successors, (75), 10 states have internal predecessors, (75), 5 states have call successors, (13), 7 states have call predecessors, (13), 3 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) Word has length 112 [2024-10-24 00:56:30,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:56:31,380 INFO L225 Difference]: With dead ends: 187155 [2024-10-24 00:56:31,381 INFO L226 Difference]: Without dead ends: 187046 [2024-10-24 00:56:31,452 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 949 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=648, Invalid=2544, Unknown=0, NotChecked=0, Total=3192 [2024-10-24 00:56:31,453 INFO L432 NwaCegarLoop]: 212 mSDtfsCounter, 2700 mSDsluCounter, 1973 mSDsCounter, 0 mSdLazyCounter, 4961 mSolverCounterSat, 761 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2711 SdHoareTripleChecker+Valid, 2185 SdHoareTripleChecker+Invalid, 5722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 761 IncrementalHoareTripleChecker+Valid, 4961 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-10-24 00:56:31,453 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2711 Valid, 2185 Invalid, 5722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [761 Valid, 4961 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-10-24 00:56:31,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187046 states. [2024-10-24 00:56:38,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187046 to 186827. [2024-10-24 00:56:38,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186827 states, 156357 states have (on average 1.6044500725902902) internal successors, (250867), 156260 states have internal predecessors, (250867), 30417 states have call successors, (30417), 44 states have call predecessors, (30417), 52 states have return successors, (38073), 30528 states have call predecessors, (38073), 30414 states have call successors, (38073) [2024-10-24 00:56:39,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186827 states to 186827 states and 319357 transitions. [2024-10-24 00:56:39,674 INFO L78 Accepts]: Start accepts. Automaton has 186827 states and 319357 transitions. Word has length 112 [2024-10-24 00:56:39,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:56:39,675 INFO L471 AbstractCegarLoop]: Abstraction has 186827 states and 319357 transitions. [2024-10-24 00:56:39,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.0) internal successors, (75), 10 states have internal predecessors, (75), 5 states have call successors, (13), 7 states have call predecessors, (13), 3 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) [2024-10-24 00:56:39,676 INFO L276 IsEmpty]: Start isEmpty. Operand 186827 states and 319357 transitions. [2024-10-24 00:56:39,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-10-24 00:56:39,721 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:56:39,721 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:56:39,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-24 00:56:39,721 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:56:39,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:56:39,722 INFO L85 PathProgramCache]: Analyzing trace with hash -35620295, now seen corresponding path program 1 times [2024-10-24 00:56:39,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:56:39,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414294257] [2024-10-24 00:56:39,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:56:39,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:56:39,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:40,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:56:40,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:40,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:56:40,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:40,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:56:40,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:40,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:56:40,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:40,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:56:40,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:40,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:56:40,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:40,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-24 00:56:40,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:40,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 00:56:40,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:40,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 00:56:40,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:40,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 00:56:40,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:40,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-24 00:56:40,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:56:40,657 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-24 00:56:40,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:56:40,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414294257] [2024-10-24 00:56:40,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414294257] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:56:40,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:56:40,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 00:56:40,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846862274] [2024-10-24 00:56:40,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:56:40,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 00:56:40,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:56:40,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 00:56:40,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-10-24 00:56:40,660 INFO L87 Difference]: Start difference. First operand 186827 states and 319357 transitions. Second operand has 12 states, 12 states have (on average 6.333333333333333) internal successors, (76), 6 states have internal predecessors, (76), 4 states have call successors, (13), 7 states have call predecessors, (13), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11)