./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_spec27_product24.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d 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_spec27_product24.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 f1a760a25f6e6d96f820367881f3fbbc32febc8ce03434205938078db6a21524 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 19:27:51,527 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 19:27:51,616 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-12 19:27:51,622 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 19:27:51,623 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 19:27:51,653 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 19:27:51,655 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 19:27:51,655 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 19:27:51,656 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 19:27:51,657 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 19:27:51,658 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 19:27:51,659 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 19:27:51,659 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 19:27:51,659 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 19:27:51,660 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 19:27:51,662 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 19:27:51,662 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 19:27:51,662 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 19:27:51,662 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 19:27:51,663 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 19:27:51,663 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 19:27:51,665 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 19:27:51,666 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 19:27:51,666 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 19:27:51,666 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 19:27:51,666 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 19:27:51,667 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 19:27:51,667 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 19:27:51,667 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 19:27:51,667 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 19:27:51,668 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 19:27:51,668 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 19:27:51,669 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 19:27:51,669 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 19:27:51,670 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 19:27:51,670 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 19:27:51,670 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 19:27:51,670 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-12 19:27:51,670 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 19:27:51,671 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 19:27:51,671 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 19:27:51,671 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 19:27:51,671 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1a760a25f6e6d96f820367881f3fbbc32febc8ce03434205938078db6a21524 [2024-10-12 19:27:51,924 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 19:27:51,946 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 19:27:51,949 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 19:27:51,950 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 19:27:51,950 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 19:27:51,951 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec27_product24.cil.c [2024-10-12 19:27:53,281 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 19:27:53,560 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 19:27:53,562 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec27_product24.cil.c [2024-10-12 19:27:53,592 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14f3cc8d5/cf7f602624fe42df875ebd77c8654f6d/FLAG07c19c836 [2024-10-12 19:27:53,853 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14f3cc8d5/cf7f602624fe42df875ebd77c8654f6d [2024-10-12 19:27:53,855 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 19:27:53,856 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 19:27:53,858 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 19:27:53,859 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 19:27:53,864 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 19:27:53,865 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 07:27:53" (1/1) ... [2024-10-12 19:27:53,866 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33a8baa4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:27:53, skipping insertion in model container [2024-10-12 19:27:53,866 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 07:27:53" (1/1) ... [2024-10-12 19:27:53,930 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 19:27:54,498 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_spec27_product24.cil.c[62587,62600] [2024-10-12 19:27:54,505 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 19:27:54,522 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 19:27:54,532 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [48] [2024-10-12 19:27:54,533 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [167] [2024-10-12 19:27:54,534 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"VerifyForward_spec.i","") [571] [2024-10-12 19:27:54,534 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [605] [2024-10-12 19:27:54,534 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [622] [2024-10-12 19:27:54,534 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1701] [2024-10-12 19:27:54,535 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2026] [2024-10-12 19:27:54,535 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2255] [2024-10-12 19:27:54,535 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2543] [2024-10-12 19:27:54,535 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2909] [2024-10-12 19:27:54,535 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2918] [2024-10-12 19:27:54,606 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_spec27_product24.cil.c[62587,62600] [2024-10-12 19:27:54,607 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 19:27:54,642 INFO L204 MainTranslator]: Completed translation [2024-10-12 19:27:54,643 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:27:54 WrapperNode [2024-10-12 19:27:54,643 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 19:27:54,644 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 19:27:54,644 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 19:27:54,645 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 19:27:54,651 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:27:54" (1/1) ... [2024-10-12 19:27:54,686 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:27:54" (1/1) ... [2024-10-12 19:27:54,737 INFO L138 Inliner]: procedures = 130, calls = 194, calls flagged for inlining = 62, calls inlined = 57, statements flattened = 1009 [2024-10-12 19:27:54,738 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 19:27:54,738 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 19:27:54,738 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 19:27:54,738 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 19:27:54,757 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:27:54" (1/1) ... [2024-10-12 19:27:54,757 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:27:54" (1/1) ... [2024-10-12 19:27:54,766 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:27:54" (1/1) ... [2024-10-12 19:27:54,802 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]. [2024-10-12 19:27:54,802 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:27:54" (1/1) ... [2024-10-12 19:27:54,803 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:27:54" (1/1) ... [2024-10-12 19:27:54,827 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:27:54" (1/1) ... [2024-10-12 19:27:54,845 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:27:54" (1/1) ... [2024-10-12 19:27:54,850 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:27:54" (1/1) ... [2024-10-12 19:27:54,858 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:27:54" (1/1) ... [2024-10-12 19:27:54,870 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 19:27:54,871 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 19:27:54,871 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 19:27:54,875 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 19:27:54,876 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:27:54" (1/1) ... [2024-10-12 19:27:54,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 19:27:54,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 19:27:54,918 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) [2024-10-12 19:27:54,924 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 [2024-10-12 19:27:54,968 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-10-12 19:27:54,968 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-10-12 19:27:54,968 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-10-12 19:27:54,969 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-10-12 19:27:54,969 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-10-12 19:27:54,969 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-10-12 19:27:54,969 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-10-12 19:27:54,970 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-10-12 19:27:54,970 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-10-12 19:27:54,970 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-10-12 19:27:54,970 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-10-12 19:27:54,970 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-10-12 19:27:54,971 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-10-12 19:27:54,971 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-10-12 19:27:54,972 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2024-10-12 19:27:54,972 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2024-10-12 19:27:54,972 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-10-12 19:27:54,973 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-10-12 19:27:54,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 19:27:54,974 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-10-12 19:27:54,974 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-10-12 19:27:54,974 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-10-12 19:27:54,974 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-10-12 19:27:54,974 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-10-12 19:27:54,974 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-10-12 19:27:54,975 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-10-12 19:27:54,975 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-10-12 19:27:54,975 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2024-10-12 19:27:54,975 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2024-10-12 19:27:54,975 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-10-12 19:27:54,976 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-10-12 19:27:54,976 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-10-12 19:27:54,976 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-10-12 19:27:54,977 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-10-12 19:27:54,977 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-10-12 19:27:54,977 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-10-12 19:27:54,977 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-10-12 19:27:54,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 19:27:54,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-12 19:27:54,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-12 19:27:54,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-12 19:27:54,978 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-10-12 19:27:54,978 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-10-12 19:27:54,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 19:27:54,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 19:27:55,223 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 19:27:55,225 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 19:27:56,115 INFO L? ?]: Removed 454 outVars from TransFormulas that were not future-live. [2024-10-12 19:27:56,115 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 19:27:56,181 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 19:27:56,183 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-12 19:27:56,184 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 07:27:56 BoogieIcfgContainer [2024-10-12 19:27:56,184 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 19:27:56,186 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 19:27:56,186 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 19:27:56,189 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 19:27:56,189 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 07:27:53" (1/3) ... [2024-10-12 19:27:56,189 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14dda19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 07:27:56, skipping insertion in model container [2024-10-12 19:27:56,189 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:27:54" (2/3) ... [2024-10-12 19:27:56,190 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14dda19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 07:27:56, skipping insertion in model container [2024-10-12 19:27:56,190 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 07:27:56" (3/3) ... [2024-10-12 19:27:56,191 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec27_product24.cil.c [2024-10-12 19:27:56,203 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 19:27:56,203 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-12 19:27:56,278 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 19:27:56,285 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;@6edf653c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 19:27:56,285 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-12 19:27:56,290 INFO L276 IsEmpty]: Start isEmpty. Operand has 305 states, 234 states have (on average 1.5854700854700854) internal successors, (371), 236 states have internal predecessors, (371), 50 states have call successors, (50), 19 states have call predecessors, (50), 19 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-10-12 19:27:56,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-10-12 19:27:56,315 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:27:56,316 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:27:56,316 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:27:56,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:27:56,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1083546885, now seen corresponding path program 1 times [2024-10-12 19:27:56,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:27:56,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198553446] [2024-10-12 19:27:56,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:27:56,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:27:56,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:27:56,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:27:56,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:27:56,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:27:56,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:27:56,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:27:56,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:27:56,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-12 19:27:56,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:27:56,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-12 19:27:56,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:27:56,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-12 19:27:56,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:27:56,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-12 19:27:56,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:27:57,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-12 19:27:57,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:27:57,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-12 19:27:57,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:27:57,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-12 19:27:57,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:27:57,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-12 19:27:57,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:27:57,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-12 19:27:57,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:27:57,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-12 19:27:57,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:27:57,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-12 19:27:57,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:27:57,051 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-12 19:27:57,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:27:57,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198553446] [2024-10-12 19:27:57,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198553446] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 19:27:57,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [542084756] [2024-10-12 19:27:57,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:27:57,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 19:27:57,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 19:27:57,058 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) [2024-10-12 19:27:57,060 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-12 19:27:57,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:27:57,444 INFO L255 TraceCheckSpWp]: Trace formula consists of 1015 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-12 19:27:57,453 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 19:27:57,478 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-12 19:27:57,479 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 19:27:57,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [542084756] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:27:57,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 19:27:57,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2024-10-12 19:27:57,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245794066] [2024-10-12 19:27:57,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:27:57,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-12 19:27:57,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:27:57,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-12 19:27:57,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-12 19:27:57,517 INFO L87 Difference]: Start difference. First operand has 305 states, 234 states have (on average 1.5854700854700854) internal successors, (371), 236 states have internal predecessors, (371), 50 states have call successors, (50), 19 states have call predecessors, (50), 19 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) Second operand has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-12 19:27:57,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:27:57,593 INFO L93 Difference]: Finished difference Result 461 states and 698 transitions. [2024-10-12 19:27:57,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-12 19:27:57,596 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 101 [2024-10-12 19:27:57,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:27:57,616 INFO L225 Difference]: With dead ends: 461 [2024-10-12 19:27:57,616 INFO L226 Difference]: Without dead ends: 302 [2024-10-12 19:27:57,620 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-12 19:27:57,623 INFO L432 NwaCegarLoop]: 450 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 19:27:57,624 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 450 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 19:27:57,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2024-10-12 19:27:57,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 302. [2024-10-12 19:27:57,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 232 states have (on average 1.5689655172413792) internal successors, (364), 233 states have internal predecessors, (364), 50 states have call successors, (50), 19 states have call predecessors, (50), 19 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2024-10-12 19:27:57,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 463 transitions. [2024-10-12 19:27:57,681 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 463 transitions. Word has length 101 [2024-10-12 19:27:57,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:27:57,683 INFO L471 AbstractCegarLoop]: Abstraction has 302 states and 463 transitions. [2024-10-12 19:27:57,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-12 19:27:57,683 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 463 transitions. [2024-10-12 19:27:57,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-10-12 19:27:57,693 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:27:57,693 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:27:57,713 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-12 19:27:57,893 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 [2024-10-12 19:27:57,894 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:27:57,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:27:57,895 INFO L85 PathProgramCache]: Analyzing trace with hash -674630377, now seen corresponding path program 1 times [2024-10-12 19:27:57,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:27:57,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639380530] [2024-10-12 19:27:57,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:27:57,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:27:57,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:27:58,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:27:58,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:27:58,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:27:58,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:27:58,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:27:58,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:27:58,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-12 19:27:58,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:27:58,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-12 19:27:58,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:27:58,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-12 19:27:58,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:27:58,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-12 19:27:58,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:27:58,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-12 19:27:58,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:27:58,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-12 19:27:58,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:27:58,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-12 19:27:58,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:27:58,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-12 19:27:58,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:27:58,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-12 19:27:58,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:27:58,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-12 19:27:58,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:27:58,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-12 19:27:58,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:27:58,247 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-12 19:27:58,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:27:58,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639380530] [2024-10-12 19:27:58,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639380530] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 19:27:58,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1770047772] [2024-10-12 19:27:58,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:27:58,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 19:27:58,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 19:27:58,251 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) [2024-10-12 19:27:58,253 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-12 19:27:58,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:27:58,600 INFO L255 TraceCheckSpWp]: Trace formula consists of 1016 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-12 19:27:58,606 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 19:27:58,637 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-12 19:27:58,641 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 19:27:58,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1770047772] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:27:58,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 19:27:58,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-10-12 19:27:58,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834255110] [2024-10-12 19:27:58,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:27:58,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 19:27:58,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:27:58,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 19:27:58,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-12 19:27:58,644 INFO L87 Difference]: Start difference. First operand 302 states and 463 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-12 19:27:58,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:27:58,731 INFO L93 Difference]: Finished difference Result 457 states and 685 transitions. [2024-10-12 19:27:58,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 19:27:58,732 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 102 [2024-10-12 19:27:58,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:27:58,736 INFO L225 Difference]: With dead ends: 457 [2024-10-12 19:27:58,736 INFO L226 Difference]: Without dead ends: 304 [2024-10-12 19:27:58,737 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-12 19:27:58,738 INFO L432 NwaCegarLoop]: 447 mSDtfsCounter, 0 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 893 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 19:27:58,738 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 893 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 19:27:58,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2024-10-12 19:27:58,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 304. [2024-10-12 19:27:58,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 234 states have (on average 1.564102564102564) internal successors, (366), 235 states have internal predecessors, (366), 50 states have call successors, (50), 19 states have call predecessors, (50), 19 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2024-10-12 19:27:58,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 465 transitions. [2024-10-12 19:27:58,777 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 465 transitions. Word has length 102 [2024-10-12 19:27:58,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:27:58,779 INFO L471 AbstractCegarLoop]: Abstraction has 304 states and 465 transitions. [2024-10-12 19:27:58,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-12 19:27:58,780 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 465 transitions. [2024-10-12 19:27:58,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-10-12 19:27:58,785 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:27:58,785 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:27:58,800 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-12 19:27:58,986 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 [2024-10-12 19:27:58,986 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:27:58,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:27:58,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1104945442, now seen corresponding path program 1 times [2024-10-12 19:27:58,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:27:58,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774355053] [2024-10-12 19:27:58,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:27:58,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:27:59,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:27:59,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:27:59,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:27:59,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:27:59,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:27:59,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:27:59,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:27:59,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-12 19:27:59,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:27:59,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-12 19:27:59,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:27:59,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-12 19:27:59,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:27:59,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-12 19:27:59,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:27:59,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-12 19:27:59,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:27:59,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-12 19:27:59,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:27:59,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-12 19:27:59,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:27:59,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-12 19:27:59,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:27:59,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-12 19:27:59,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:27:59,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-12 19:27:59,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:27:59,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-12 19:27:59,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:27:59,265 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-12 19:27:59,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:27:59,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774355053] [2024-10-12 19:27:59,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774355053] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 19:27:59,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2116804053] [2024-10-12 19:27:59,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:27:59,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 19:27:59,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 19:27:59,269 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) [2024-10-12 19:27:59,270 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-12 19:27:59,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:27:59,613 INFO L255 TraceCheckSpWp]: Trace formula consists of 1040 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-12 19:27:59,619 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 19:27:59,652 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-12 19:27:59,652 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 19:27:59,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2116804053] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:27:59,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 19:27:59,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-10-12 19:27:59,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520359848] [2024-10-12 19:27:59,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:27:59,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 19:27:59,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:27:59,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 19:27:59,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-12 19:27:59,658 INFO L87 Difference]: Start difference. First operand 304 states and 465 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-12 19:27:59,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:27:59,731 INFO L93 Difference]: Finished difference Result 642 states and 996 transitions. [2024-10-12 19:27:59,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 19:27:59,732 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 109 [2024-10-12 19:27:59,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:27:59,737 INFO L225 Difference]: With dead ends: 642 [2024-10-12 19:27:59,737 INFO L226 Difference]: Without dead ends: 360 [2024-10-12 19:27:59,739 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-12 19:27:59,740 INFO L432 NwaCegarLoop]: 455 mSDtfsCounter, 109 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 858 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 19:27:59,742 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 858 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 19:27:59,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2024-10-12 19:27:59,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 355. [2024-10-12 19:27:59,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 274 states have (on average 1.5802919708029197) internal successors, (433), 275 states have internal predecessors, (433), 61 states have call successors, (61), 19 states have call predecessors, (61), 19 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-10-12 19:27:59,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 554 transitions. [2024-10-12 19:27:59,779 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 554 transitions. Word has length 109 [2024-10-12 19:27:59,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:27:59,780 INFO L471 AbstractCegarLoop]: Abstraction has 355 states and 554 transitions. [2024-10-12 19:27:59,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-12 19:27:59,780 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 554 transitions. [2024-10-12 19:27:59,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-10-12 19:27:59,783 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:27:59,783 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:27:59,806 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-12 19:27:59,986 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 [2024-10-12 19:27:59,986 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:27:59,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:27:59,987 INFO L85 PathProgramCache]: Analyzing trace with hash 1463184986, now seen corresponding path program 1 times [2024-10-12 19:27:59,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:27:59,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987367050] [2024-10-12 19:27:59,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:27:59,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:28:00,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:00,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:28:00,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:00,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:28:00,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:00,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:28:00,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:00,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-12 19:28:00,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:00,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-12 19:28:00,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:00,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-12 19:28:00,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:00,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-12 19:28:00,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:00,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-12 19:28:00,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:00,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-12 19:28:00,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:00,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-12 19:28:00,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:00,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-12 19:28:00,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:00,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-12 19:28:00,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:00,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-12 19:28:00,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:00,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-12 19:28:00,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:00,215 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-12 19:28:00,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:28:00,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987367050] [2024-10-12 19:28:00,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987367050] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 19:28:00,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1229919319] [2024-10-12 19:28:00,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:28:00,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 19:28:00,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 19:28:00,219 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) [2024-10-12 19:28:00,220 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-12 19:28:00,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:00,552 INFO L255 TraceCheckSpWp]: Trace formula consists of 1045 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-12 19:28:00,557 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 19:28:00,627 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-12 19:28:00,627 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 19:28:00,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1229919319] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:28:00,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 19:28:00,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-10-12 19:28:00,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110366979] [2024-10-12 19:28:00,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:28:00,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 19:28:00,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:28:00,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 19:28:00,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-12 19:28:00,630 INFO L87 Difference]: Start difference. First operand 355 states and 554 transitions. Second operand has 5 states, 4 states have (on average 18.25) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-12 19:28:00,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:28:00,744 INFO L93 Difference]: Finished difference Result 705 states and 1102 transitions. [2024-10-12 19:28:00,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 19:28:00,745 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.25) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 110 [2024-10-12 19:28:00,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:28:00,750 INFO L225 Difference]: With dead ends: 705 [2024-10-12 19:28:00,751 INFO L226 Difference]: Without dead ends: 357 [2024-10-12 19:28:00,753 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-12 19:28:00,754 INFO L432 NwaCegarLoop]: 439 mSDtfsCounter, 2 mSDsluCounter, 1306 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1745 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 19:28:00,755 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1745 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 19:28:00,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2024-10-12 19:28:00,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 357. [2024-10-12 19:28:00,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 275 states have (on average 1.5781818181818181) internal successors, (434), 277 states have internal predecessors, (434), 61 states have call successors, (61), 19 states have call predecessors, (61), 20 states have return successors, (62), 60 states have call predecessors, (62), 60 states have call successors, (62) [2024-10-12 19:28:00,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 557 transitions. [2024-10-12 19:28:00,779 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 557 transitions. Word has length 110 [2024-10-12 19:28:00,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:28:00,780 INFO L471 AbstractCegarLoop]: Abstraction has 357 states and 557 transitions. [2024-10-12 19:28:00,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.25) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-12 19:28:00,780 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 557 transitions. [2024-10-12 19:28:00,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-12 19:28:00,785 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:28:00,785 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:28:00,806 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-12 19:28:00,989 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 [2024-10-12 19:28:00,990 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:28:00,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:28:00,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1377570158, now seen corresponding path program 1 times [2024-10-12 19:28:00,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:28:00,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393504783] [2024-10-12 19:28:00,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:28:00,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:28:01,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:01,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:28:01,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:01,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:28:01,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:01,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:28:01,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:01,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:28:01,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:01,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-12 19:28:01,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:01,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-12 19:28:01,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:01,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-12 19:28:01,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:01,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-12 19:28:01,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:01,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-12 19:28:01,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:01,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-12 19:28:01,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:01,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-12 19:28:01,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:01,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-12 19:28:01,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:01,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-12 19:28:01,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:01,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-12 19:28:01,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:01,226 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-12 19:28:01,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:28:01,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393504783] [2024-10-12 19:28:01,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393504783] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 19:28:01,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1789795291] [2024-10-12 19:28:01,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:28:01,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 19:28:01,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 19:28:01,229 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) [2024-10-12 19:28:01,230 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-12 19:28:01,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:01,516 INFO L255 TraceCheckSpWp]: Trace formula consists of 1046 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-12 19:28:01,539 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 19:28:01,601 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-12 19:28:01,601 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 19:28:01,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1789795291] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:28:01,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 19:28:01,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-10-12 19:28:01,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329955165] [2024-10-12 19:28:01,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:28:01,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 19:28:01,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:28:01,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 19:28:01,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-10-12 19:28:01,604 INFO L87 Difference]: Start difference. First operand 357 states and 557 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-12 19:28:01,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:28:01,725 INFO L93 Difference]: Finished difference Result 707 states and 1107 transitions. [2024-10-12 19:28:01,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 19:28:01,725 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 111 [2024-10-12 19:28:01,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:28:01,728 INFO L225 Difference]: With dead ends: 707 [2024-10-12 19:28:01,728 INFO L226 Difference]: Without dead ends: 359 [2024-10-12 19:28:01,730 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-10-12 19:28:01,731 INFO L432 NwaCegarLoop]: 437 mSDtfsCounter, 2 mSDsluCounter, 1294 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1731 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 19:28:01,731 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1731 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 19:28:01,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2024-10-12 19:28:01,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 359. [2024-10-12 19:28:01,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 276 states have (on average 1.576086956521739) internal successors, (435), 279 states have internal predecessors, (435), 61 states have call successors, (61), 19 states have call predecessors, (61), 21 states have return successors, (67), 60 states have call predecessors, (67), 60 states have call successors, (67) [2024-10-12 19:28:01,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 563 transitions. [2024-10-12 19:28:01,750 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 563 transitions. Word has length 111 [2024-10-12 19:28:01,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:28:01,750 INFO L471 AbstractCegarLoop]: Abstraction has 359 states and 563 transitions. [2024-10-12 19:28:01,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-12 19:28:01,751 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 563 transitions. [2024-10-12 19:28:01,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-10-12 19:28:01,753 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:28:01,753 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:28:01,769 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-12 19:28:01,954 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 [2024-10-12 19:28:01,955 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:28:01,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:28:01,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1056110669, now seen corresponding path program 1 times [2024-10-12 19:28:01,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:28:01,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127650848] [2024-10-12 19:28:01,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:28:01,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:28:01,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:02,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:28:02,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:02,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:28:02,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:02,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:28:02,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:02,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:28:02,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:02,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:28:02,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:02,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-12 19:28:02,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:02,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-12 19:28:02,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:02,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-12 19:28:02,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:02,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-12 19:28:02,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:02,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-12 19:28:02,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:02,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-12 19:28:02,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:02,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-12 19:28:02,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:02,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-12 19:28:02,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:02,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-12 19:28:02,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:02,159 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-12 19:28:02,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:28:02,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127650848] [2024-10-12 19:28:02,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127650848] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:28:02,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:28:02,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-12 19:28:02,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072242032] [2024-10-12 19:28:02,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:28:02,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-12 19:28:02,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:28:02,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-12 19:28:02,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-12 19:28:02,161 INFO L87 Difference]: Start difference. First operand 359 states and 563 transitions. Second operand has 9 states, 8 states have (on average 8.875) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-12 19:28:04,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:28:04,320 INFO L93 Difference]: Finished difference Result 852 states and 1351 transitions. [2024-10-12 19:28:04,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-12 19:28:04,320 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.875) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 112 [2024-10-12 19:28:04,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:28:04,324 INFO L225 Difference]: With dead ends: 852 [2024-10-12 19:28:04,324 INFO L226 Difference]: Without dead ends: 512 [2024-10-12 19:28:04,326 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-12 19:28:04,327 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 1000 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 2515 mSolverCounterSat, 318 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1001 SdHoareTripleChecker+Valid, 1016 SdHoareTripleChecker+Invalid, 2833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 318 IncrementalHoareTripleChecker+Valid, 2515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-12 19:28:04,327 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1001 Valid, 1016 Invalid, 2833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [318 Valid, 2515 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-12 19:28:04,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2024-10-12 19:28:04,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 359. [2024-10-12 19:28:04,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 276 states have (on average 1.576086956521739) internal successors, (435), 279 states have internal predecessors, (435), 61 states have call successors, (61), 19 states have call predecessors, (61), 21 states have return successors, (66), 60 states have call predecessors, (66), 60 states have call successors, (66) [2024-10-12 19:28:04,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 562 transitions. [2024-10-12 19:28:04,390 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 562 transitions. Word has length 112 [2024-10-12 19:28:04,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:28:04,391 INFO L471 AbstractCegarLoop]: Abstraction has 359 states and 562 transitions. [2024-10-12 19:28:04,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.875) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-12 19:28:04,391 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 562 transitions. [2024-10-12 19:28:04,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-10-12 19:28:04,393 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:28:04,393 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:28:04,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-12 19:28:04,394 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:28:04,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:28:04,394 INFO L85 PathProgramCache]: Analyzing trace with hash 143907469, now seen corresponding path program 2 times [2024-10-12 19:28:04,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:28:04,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40649421] [2024-10-12 19:28:04,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:28:04,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:28:04,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:04,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:28:04,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:04,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:28:04,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:04,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:28:04,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:04,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:28:04,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:04,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:28:04,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:04,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-12 19:28:04,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:04,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-12 19:28:04,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:04,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-12 19:28:04,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:04,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-12 19:28:04,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:04,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-12 19:28:04,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:04,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-12 19:28:04,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:04,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-12 19:28:04,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:04,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-12 19:28:04,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:04,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-12 19:28:04,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:04,617 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-12 19:28:04,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:28:04,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40649421] [2024-10-12 19:28:04,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40649421] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:28:04,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:28:04,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-12 19:28:04,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490501394] [2024-10-12 19:28:04,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:28:04,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-12 19:28:04,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:28:04,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-12 19:28:04,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-12 19:28:04,619 INFO L87 Difference]: Start difference. First operand 359 states and 562 transitions. Second operand has 9 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-12 19:28:06,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:28:06,674 INFO L93 Difference]: Finished difference Result 854 states and 1354 transitions. [2024-10-12 19:28:06,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-12 19:28:06,675 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 113 [2024-10-12 19:28:06,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:28:06,680 INFO L225 Difference]: With dead ends: 854 [2024-10-12 19:28:06,681 INFO L226 Difference]: Without dead ends: 514 [2024-10-12 19:28:06,682 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-12 19:28:06,683 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 997 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 2517 mSolverCounterSat, 320 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 998 SdHoareTripleChecker+Valid, 1015 SdHoareTripleChecker+Invalid, 2837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 320 IncrementalHoareTripleChecker+Valid, 2517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-12 19:28:06,683 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [998 Valid, 1015 Invalid, 2837 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [320 Valid, 2517 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-12 19:28:06,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2024-10-12 19:28:06,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 361. [2024-10-12 19:28:06,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 277 states have (on average 1.5740072202166064) internal successors, (436), 281 states have internal predecessors, (436), 61 states have call successors, (61), 19 states have call predecessors, (61), 22 states have return successors, (68), 60 states have call predecessors, (68), 60 states have call successors, (68) [2024-10-12 19:28:06,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 565 transitions. [2024-10-12 19:28:06,721 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 565 transitions. Word has length 113 [2024-10-12 19:28:06,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:28:06,721 INFO L471 AbstractCegarLoop]: Abstraction has 361 states and 565 transitions. [2024-10-12 19:28:06,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-12 19:28:06,721 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 565 transitions. [2024-10-12 19:28:06,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-12 19:28:06,723 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:28:06,723 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:28:06,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-12 19:28:06,724 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:28:06,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:28:06,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1688308338, now seen corresponding path program 1 times [2024-10-12 19:28:06,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:28:06,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228664546] [2024-10-12 19:28:06,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:28:06,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:28:06,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:06,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:28:06,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:06,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:28:06,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:06,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:28:06,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:06,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:28:06,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:06,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:28:06,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:06,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:28:06,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:06,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-12 19:28:06,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:06,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-12 19:28:06,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:06,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-12 19:28:06,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:06,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-12 19:28:06,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:06,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-12 19:28:06,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:06,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-12 19:28:06,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:06,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-12 19:28:07,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:07,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-12 19:28:07,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:07,003 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-12 19:28:07,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:28:07,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228664546] [2024-10-12 19:28:07,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228664546] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:28:07,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:28:07,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-12 19:28:07,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948027117] [2024-10-12 19:28:07,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:28:07,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-12 19:28:07,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:28:07,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-12 19:28:07,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-10-12 19:28:07,007 INFO L87 Difference]: Start difference. First operand 361 states and 565 transitions. Second operand has 12 states, 11 states have (on average 6.909090909090909) internal successors, (76), 8 states have internal predecessors, (76), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-12 19:28:09,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:28:09,813 INFO L93 Difference]: Finished difference Result 852 states and 1349 transitions. [2024-10-12 19:28:09,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-12 19:28:09,813 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.909090909090909) internal successors, (76), 8 states have internal predecessors, (76), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 114 [2024-10-12 19:28:09,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:28:09,818 INFO L225 Difference]: With dead ends: 852 [2024-10-12 19:28:09,818 INFO L226 Difference]: Without dead ends: 514 [2024-10-12 19:28:09,819 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-10-12 19:28:09,820 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 1000 mSDsluCounter, 1244 mSDsCounter, 0 mSdLazyCounter, 4163 mSolverCounterSat, 324 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1001 SdHoareTripleChecker+Valid, 1409 SdHoareTripleChecker+Invalid, 4487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 324 IncrementalHoareTripleChecker+Valid, 4163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-10-12 19:28:09,821 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1001 Valid, 1409 Invalid, 4487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [324 Valid, 4163 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-10-12 19:28:09,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2024-10-12 19:28:09,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 361. [2024-10-12 19:28:09,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 277 states have (on average 1.5740072202166064) internal successors, (436), 281 states have internal predecessors, (436), 61 states have call successors, (61), 19 states have call predecessors, (61), 22 states have return successors, (67), 60 states have call predecessors, (67), 60 states have call successors, (67) [2024-10-12 19:28:09,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 564 transitions. [2024-10-12 19:28:09,853 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 564 transitions. Word has length 114 [2024-10-12 19:28:09,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:28:09,854 INFO L471 AbstractCegarLoop]: Abstraction has 361 states and 564 transitions. [2024-10-12 19:28:09,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.909090909090909) internal successors, (76), 8 states have internal predecessors, (76), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-12 19:28:09,855 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 564 transitions. [2024-10-12 19:28:09,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-10-12 19:28:09,857 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:28:09,857 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:28:09,858 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-12 19:28:09,858 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:28:09,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:28:09,858 INFO L85 PathProgramCache]: Analyzing trace with hash -342273873, now seen corresponding path program 2 times [2024-10-12 19:28:09,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:28:09,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884243718] [2024-10-12 19:28:09,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:28:09,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:28:09,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:10,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:28:10,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:10,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:28:10,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:10,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:28:10,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:10,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:28:10,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:10,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:28:10,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:10,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:28:10,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:10,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-12 19:28:10,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:10,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-12 19:28:10,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:10,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-12 19:28:10,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:10,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-12 19:28:10,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:10,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-12 19:28:10,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:10,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-12 19:28:10,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:10,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-12 19:28:10,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:10,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-12 19:28:10,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:10,132 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-12 19:28:10,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:28:10,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884243718] [2024-10-12 19:28:10,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884243718] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:28:10,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:28:10,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-12 19:28:10,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413509531] [2024-10-12 19:28:10,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:28:10,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-12 19:28:10,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:28:10,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-12 19:28:10,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-10-12 19:28:10,135 INFO L87 Difference]: Start difference. First operand 361 states and 564 transitions. Second operand has 12 states, 11 states have (on average 7.0) internal successors, (77), 8 states have internal predecessors, (77), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-12 19:28:12,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:28:12,586 INFO L93 Difference]: Finished difference Result 854 states and 1355 transitions. [2024-10-12 19:28:12,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-12 19:28:12,587 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.0) internal successors, (77), 8 states have internal predecessors, (77), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 115 [2024-10-12 19:28:12,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:28:12,590 INFO L225 Difference]: With dead ends: 854 [2024-10-12 19:28:12,590 INFO L226 Difference]: Without dead ends: 516 [2024-10-12 19:28:12,591 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-10-12 19:28:12,592 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 996 mSDsluCounter, 1244 mSDsCounter, 0 mSdLazyCounter, 4199 mSolverCounterSat, 321 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 997 SdHoareTripleChecker+Valid, 1410 SdHoareTripleChecker+Invalid, 4520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 321 IncrementalHoareTripleChecker+Valid, 4199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-10-12 19:28:12,592 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [997 Valid, 1410 Invalid, 4520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [321 Valid, 4199 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-10-12 19:28:12,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2024-10-12 19:28:12,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 363. [2024-10-12 19:28:12,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 278 states have (on average 1.5719424460431655) internal successors, (437), 283 states have internal predecessors, (437), 61 states have call successors, (61), 19 states have call predecessors, (61), 23 states have return successors, (72), 60 states have call predecessors, (72), 60 states have call successors, (72) [2024-10-12 19:28:12,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 570 transitions. [2024-10-12 19:28:12,621 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 570 transitions. Word has length 115 [2024-10-12 19:28:12,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:28:12,622 INFO L471 AbstractCegarLoop]: Abstraction has 363 states and 570 transitions. [2024-10-12 19:28:12,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.0) internal successors, (77), 8 states have internal predecessors, (77), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-12 19:28:12,622 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 570 transitions. [2024-10-12 19:28:12,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-10-12 19:28:12,624 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:28:12,624 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:28:12,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-12 19:28:12,625 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:28:12,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:28:12,625 INFO L85 PathProgramCache]: Analyzing trace with hash -315769719, now seen corresponding path program 1 times [2024-10-12 19:28:12,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:28:12,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139287099] [2024-10-12 19:28:12,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:28:12,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:28:12,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:12,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:28:12,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:12,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:28:12,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:12,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:28:12,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:12,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:28:12,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:12,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:28:12,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:12,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:28:12,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:12,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-12 19:28:12,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:12,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-12 19:28:12,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:12,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-12 19:28:12,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:12,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-12 19:28:12,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:12,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-12 19:28:12,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:12,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-12 19:28:12,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:12,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-12 19:28:12,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:12,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-12 19:28:12,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:12,863 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-10-12 19:28:12,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:28:12,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139287099] [2024-10-12 19:28:12,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139287099] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 19:28:12,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1520415867] [2024-10-12 19:28:12,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:28:12,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 19:28:12,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 19:28:12,865 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) [2024-10-12 19:28:12,867 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-12 19:28:13,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:13,176 INFO L255 TraceCheckSpWp]: Trace formula consists of 1051 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-12 19:28:13,179 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 19:28:13,216 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-12 19:28:13,216 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 19:28:13,311 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-12 19:28:13,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1520415867] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 19:28:13,311 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 19:28:13,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2024-10-12 19:28:13,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600379100] [2024-10-12 19:28:13,312 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 19:28:13,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-12 19:28:13,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:28:13,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-12 19:28:13,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-10-12 19:28:13,313 INFO L87 Difference]: Start difference. First operand 363 states and 570 transitions. Second operand has 15 states, 14 states have (on average 9.071428571428571) internal successors, (127), 11 states have internal predecessors, (127), 4 states have call successors, (33), 6 states have call predecessors, (33), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2024-10-12 19:28:16,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:28:16,005 INFO L93 Difference]: Finished difference Result 1203 states and 2001 transitions. [2024-10-12 19:28:16,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-12 19:28:16,005 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 9.071428571428571) internal successors, (127), 11 states have internal predecessors, (127), 4 states have call successors, (33), 6 states have call predecessors, (33), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) Word has length 116 [2024-10-12 19:28:16,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:28:16,011 INFO L225 Difference]: With dead ends: 1203 [2024-10-12 19:28:16,012 INFO L226 Difference]: Without dead ends: 866 [2024-10-12 19:28:16,014 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=164, Invalid=828, Unknown=0, NotChecked=0, Total=992 [2024-10-12 19:28:16,015 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 2093 mSDsluCounter, 1453 mSDsCounter, 0 mSdLazyCounter, 4590 mSolverCounterSat, 651 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2110 SdHoareTripleChecker+Valid, 1610 SdHoareTripleChecker+Invalid, 5241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 651 IncrementalHoareTripleChecker+Valid, 4590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-10-12 19:28:16,015 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2110 Valid, 1610 Invalid, 5241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [651 Valid, 4590 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-10-12 19:28:16,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2024-10-12 19:28:16,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 698. [2024-10-12 19:28:16,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 698 states, 549 states have (on average 1.621129326047359) internal successors, (890), 554 states have internal predecessors, (890), 125 states have call successors, (125), 19 states have call predecessors, (125), 23 states have return successors, (146), 124 states have call predecessors, (146), 124 states have call successors, (146) [2024-10-12 19:28:16,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 1161 transitions. [2024-10-12 19:28:16,062 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 1161 transitions. Word has length 116 [2024-10-12 19:28:16,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:28:16,062 INFO L471 AbstractCegarLoop]: Abstraction has 698 states and 1161 transitions. [2024-10-12 19:28:16,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 9.071428571428571) internal successors, (127), 11 states have internal predecessors, (127), 4 states have call successors, (33), 6 states have call predecessors, (33), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2024-10-12 19:28:16,063 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 1161 transitions. [2024-10-12 19:28:16,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-10-12 19:28:16,066 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:28:16,066 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:28:16,084 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-12 19:28:16,267 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 [2024-10-12 19:28:16,268 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:28:16,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:28:16,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1024976943, now seen corresponding path program 1 times [2024-10-12 19:28:16,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:28:16,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023550546] [2024-10-12 19:28:16,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:28:16,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:28:16,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:16,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:28:16,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:16,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:28:16,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:16,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:28:16,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:16,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:28:16,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:16,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:28:16,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:16,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:28:16,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:16,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-12 19:28:16,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:16,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-12 19:28:16,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:16,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-12 19:28:16,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:16,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-12 19:28:16,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:16,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-12 19:28:16,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:16,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-12 19:28:16,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:16,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-12 19:28:16,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:16,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-12 19:28:16,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:16,390 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-12 19:28:16,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:28:16,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023550546] [2024-10-12 19:28:16,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023550546] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:28:16,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:28:16,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:28:16,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905273539] [2024-10-12 19:28:16,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:28:16,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:28:16,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:28:16,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:28:16,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:28:16,395 INFO L87 Difference]: Start difference. First operand 698 states and 1161 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-12 19:28:17,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:28:17,724 INFO L93 Difference]: Finished difference Result 1798 states and 3060 transitions. [2024-10-12 19:28:17,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 19:28:17,724 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 120 [2024-10-12 19:28:17,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:28:17,731 INFO L225 Difference]: With dead ends: 1798 [2024-10-12 19:28:17,731 INFO L226 Difference]: Without dead ends: 1168 [2024-10-12 19:28:17,734 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-12 19:28:17,734 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 1102 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 1462 mSolverCounterSat, 372 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1117 SdHoareTripleChecker+Valid, 777 SdHoareTripleChecker+Invalid, 1834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 372 IncrementalHoareTripleChecker+Valid, 1462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-12 19:28:17,735 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1117 Valid, 777 Invalid, 1834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [372 Valid, 1462 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-12 19:28:17,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1168 states. [2024-10-12 19:28:17,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1168 to 1010. [2024-10-12 19:28:17,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1010 states, 797 states have (on average 1.6336260978670012) internal successors, (1302), 802 states have internal predecessors, (1302), 189 states have call successors, (189), 19 states have call predecessors, (189), 23 states have return successors, (220), 188 states have call predecessors, (220), 188 states have call successors, (220) [2024-10-12 19:28:17,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1010 states to 1010 states and 1711 transitions. [2024-10-12 19:28:17,794 INFO L78 Accepts]: Start accepts. Automaton has 1010 states and 1711 transitions. Word has length 120 [2024-10-12 19:28:17,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:28:17,794 INFO L471 AbstractCegarLoop]: Abstraction has 1010 states and 1711 transitions. [2024-10-12 19:28:17,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-12 19:28:17,795 INFO L276 IsEmpty]: Start isEmpty. Operand 1010 states and 1711 transitions. [2024-10-12 19:28:17,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-10-12 19:28:17,800 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:28:17,800 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:28:17,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-12 19:28:17,801 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:28:17,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:28:17,801 INFO L85 PathProgramCache]: Analyzing trace with hash -257707276, now seen corresponding path program 1 times [2024-10-12 19:28:17,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:28:17,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609608413] [2024-10-12 19:28:17,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:28:17,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:28:17,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:17,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:28:17,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:17,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:28:17,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:17,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:28:17,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:17,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:28:17,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:17,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:28:17,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:17,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:28:17,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:17,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-12 19:28:17,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:17,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-12 19:28:17,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:17,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-12 19:28:17,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:17,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-12 19:28:17,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:17,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-12 19:28:17,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:17,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-12 19:28:17,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:17,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-12 19:28:17,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:17,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-12 19:28:17,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:17,919 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-12 19:28:17,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:28:17,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609608413] [2024-10-12 19:28:17,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609608413] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:28:17,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:28:17,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:28:17,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135897618] [2024-10-12 19:28:17,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:28:17,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:28:17,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:28:17,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:28:17,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:28:17,922 INFO L87 Difference]: Start difference. First operand 1010 states and 1711 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-12 19:28:19,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:28:19,202 INFO L93 Difference]: Finished difference Result 2567 states and 4408 transitions. [2024-10-12 19:28:19,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 19:28:19,203 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 121 [2024-10-12 19:28:19,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:28:19,224 INFO L225 Difference]: With dead ends: 2567 [2024-10-12 19:28:19,224 INFO L226 Difference]: Without dead ends: 1675 [2024-10-12 19:28:19,232 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-12 19:28:19,241 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 1100 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 1444 mSolverCounterSat, 380 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1115 SdHoareTripleChecker+Valid, 747 SdHoareTripleChecker+Invalid, 1824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 380 IncrementalHoareTripleChecker+Valid, 1444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-12 19:28:19,242 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1115 Valid, 747 Invalid, 1824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [380 Valid, 1444 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-12 19:28:19,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1675 states. [2024-10-12 19:28:19,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1675 to 1517. [2024-10-12 19:28:19,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1517 states, 1209 states have (on average 1.639371381306865) internal successors, (1982), 1214 states have internal predecessors, (1982), 284 states have call successors, (284), 19 states have call predecessors, (284), 23 states have return successors, (315), 283 states have call predecessors, (315), 283 states have call successors, (315) [2024-10-12 19:28:19,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1517 states to 1517 states and 2581 transitions. [2024-10-12 19:28:19,379 INFO L78 Accepts]: Start accepts. Automaton has 1517 states and 2581 transitions. Word has length 121 [2024-10-12 19:28:19,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:28:19,379 INFO L471 AbstractCegarLoop]: Abstraction has 1517 states and 2581 transitions. [2024-10-12 19:28:19,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-12 19:28:19,379 INFO L276 IsEmpty]: Start isEmpty. Operand 1517 states and 2581 transitions. [2024-10-12 19:28:19,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-10-12 19:28:19,388 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:28:19,388 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:28:19,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-12 19:28:19,388 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:28:19,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:28:19,389 INFO L85 PathProgramCache]: Analyzing trace with hash 640719011, now seen corresponding path program 1 times [2024-10-12 19:28:19,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:28:19,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857321579] [2024-10-12 19:28:19,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:28:19,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:28:19,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:19,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:28:19,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:19,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:28:19,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:19,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:28:19,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:19,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:28:19,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:19,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:28:19,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:19,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:28:19,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:19,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-12 19:28:19,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:19,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-12 19:28:19,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:19,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-12 19:28:19,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:19,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-12 19:28:19,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:19,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-12 19:28:19,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:19,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-12 19:28:19,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:19,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-12 19:28:19,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:19,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-12 19:28:19,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:19,530 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-12 19:28:19,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:28:19,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857321579] [2024-10-12 19:28:19,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857321579] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:28:19,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:28:19,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:28:19,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717164217] [2024-10-12 19:28:19,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:28:19,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:28:19,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:28:19,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:28:19,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:28:19,533 INFO L87 Difference]: Start difference. First operand 1517 states and 2581 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-12 19:28:20,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:28:20,794 INFO L93 Difference]: Finished difference Result 3713 states and 6433 transitions. [2024-10-12 19:28:20,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 19:28:20,795 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 122 [2024-10-12 19:28:20,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:28:20,807 INFO L225 Difference]: With dead ends: 3713 [2024-10-12 19:28:20,808 INFO L226 Difference]: Without dead ends: 2442 [2024-10-12 19:28:20,812 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-12 19:28:20,813 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 1097 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 1441 mSolverCounterSat, 370 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1112 SdHoareTripleChecker+Valid, 738 SdHoareTripleChecker+Invalid, 1811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 370 IncrementalHoareTripleChecker+Valid, 1441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-12 19:28:20,813 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1112 Valid, 738 Invalid, 1811 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [370 Valid, 1441 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-12 19:28:20,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2442 states. [2024-10-12 19:28:20,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2442 to 2284. [2024-10-12 19:28:20,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2284 states, 1853 states have (on average 1.6443604964921748) internal successors, (3047), 1858 states have internal predecessors, (3047), 407 states have call successors, (407), 19 states have call predecessors, (407), 23 states have return successors, (454), 406 states have call predecessors, (454), 406 states have call successors, (454) [2024-10-12 19:28:20,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2284 states to 2284 states and 3908 transitions. [2024-10-12 19:28:20,919 INFO L78 Accepts]: Start accepts. Automaton has 2284 states and 3908 transitions. Word has length 122 [2024-10-12 19:28:20,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:28:20,920 INFO L471 AbstractCegarLoop]: Abstraction has 2284 states and 3908 transitions. [2024-10-12 19:28:20,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-12 19:28:20,920 INFO L276 IsEmpty]: Start isEmpty. Operand 2284 states and 3908 transitions. [2024-10-12 19:28:20,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-10-12 19:28:20,931 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:28:20,931 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:28:20,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-12 19:28:20,932 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:28:20,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:28:20,932 INFO L85 PathProgramCache]: Analyzing trace with hash -955845805, now seen corresponding path program 1 times [2024-10-12 19:28:20,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:28:20,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969047499] [2024-10-12 19:28:20,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:28:20,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:28:20,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:20,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:28:21,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:21,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:28:21,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:21,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:28:21,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:21,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:28:21,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:21,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:28:21,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:21,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:28:21,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:21,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-12 19:28:21,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:21,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-12 19:28:21,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:21,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-12 19:28:21,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:21,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-12 19:28:21,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:21,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-12 19:28:21,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:21,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-12 19:28:21,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:21,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-12 19:28:21,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:21,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-12 19:28:21,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:21,048 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-12 19:28:21,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:28:21,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969047499] [2024-10-12 19:28:21,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969047499] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:28:21,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:28:21,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:28:21,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092197602] [2024-10-12 19:28:21,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:28:21,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:28:21,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:28:21,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:28:21,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:28:21,050 INFO L87 Difference]: Start difference. First operand 2284 states and 3908 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-12 19:28:22,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:28:22,547 INFO L93 Difference]: Finished difference Result 5495 states and 9591 transitions. [2024-10-12 19:28:22,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 19:28:22,548 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 123 [2024-10-12 19:28:22,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:28:22,566 INFO L225 Difference]: With dead ends: 5495 [2024-10-12 19:28:22,567 INFO L226 Difference]: Without dead ends: 3666 [2024-10-12 19:28:22,573 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-12 19:28:22,574 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 1095 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 1444 mSolverCounterSat, 370 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1110 SdHoareTripleChecker+Valid, 738 SdHoareTripleChecker+Invalid, 1814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 370 IncrementalHoareTripleChecker+Valid, 1444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-12 19:28:22,574 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1110 Valid, 738 Invalid, 1814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [370 Valid, 1444 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-12 19:28:22,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3666 states. [2024-10-12 19:28:22,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3666 to 3508. [2024-10-12 19:28:22,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3508 states, 2898 states have (on average 1.647688060731539) internal successors, (4775), 2903 states have internal predecessors, (4775), 586 states have call successors, (586), 19 states have call predecessors, (586), 23 states have return successors, (659), 585 states have call predecessors, (659), 585 states have call successors, (659) [2024-10-12 19:28:22,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3508 states to 3508 states and 6020 transitions. [2024-10-12 19:28:22,739 INFO L78 Accepts]: Start accepts. Automaton has 3508 states and 6020 transitions. Word has length 123 [2024-10-12 19:28:22,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:28:22,740 INFO L471 AbstractCegarLoop]: Abstraction has 3508 states and 6020 transitions. [2024-10-12 19:28:22,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-12 19:28:22,740 INFO L276 IsEmpty]: Start isEmpty. Operand 3508 states and 6020 transitions. [2024-10-12 19:28:22,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-10-12 19:28:22,753 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:28:22,753 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:28:22,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-12 19:28:22,754 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:28:22,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:28:22,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1737339399, now seen corresponding path program 1 times [2024-10-12 19:28:22,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:28:22,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691366868] [2024-10-12 19:28:22,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:28:22,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:28:22,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:22,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:28:22,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:22,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:28:22,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:22,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:28:22,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:22,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:28:22,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:22,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:28:22,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:22,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:28:22,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:22,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-12 19:28:22,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:22,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-12 19:28:22,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:22,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-12 19:28:22,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:22,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-12 19:28:22,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:22,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-12 19:28:22,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:22,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-12 19:28:22,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:22,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-12 19:28:22,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:22,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-12 19:28:22,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:22,896 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-12 19:28:22,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:28:22,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691366868] [2024-10-12 19:28:22,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691366868] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:28:22,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:28:22,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:28:22,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073735402] [2024-10-12 19:28:22,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:28:22,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:28:22,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:28:22,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:28:22,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:28:22,900 INFO L87 Difference]: Start difference. First operand 3508 states and 6020 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-12 19:28:24,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:28:24,278 INFO L93 Difference]: Finished difference Result 8474 states and 14831 transitions. [2024-10-12 19:28:24,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 19:28:24,279 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 124 [2024-10-12 19:28:24,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:28:24,307 INFO L225 Difference]: With dead ends: 8474 [2024-10-12 19:28:24,307 INFO L226 Difference]: Without dead ends: 5724 [2024-10-12 19:28:24,317 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-12 19:28:24,317 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 1094 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 1454 mSolverCounterSat, 372 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1109 SdHoareTripleChecker+Valid, 764 SdHoareTripleChecker+Invalid, 1826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 372 IncrementalHoareTripleChecker+Valid, 1454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-12 19:28:24,318 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1109 Valid, 764 Invalid, 1826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [372 Valid, 1454 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-12 19:28:24,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5724 states. [2024-10-12 19:28:24,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5724 to 5566. [2024-10-12 19:28:24,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5566 states, 4580 states have (on average 1.637117903930131) internal successors, (7498), 4585 states have internal predecessors, (7498), 962 states have call successors, (962), 19 states have call predecessors, (962), 23 states have return successors, (1079), 961 states have call predecessors, (1079), 961 states have call successors, (1079) [2024-10-12 19:28:24,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5566 states to 5566 states and 9539 transitions. [2024-10-12 19:28:24,606 INFO L78 Accepts]: Start accepts. Automaton has 5566 states and 9539 transitions. Word has length 124 [2024-10-12 19:28:24,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:28:24,606 INFO L471 AbstractCegarLoop]: Abstraction has 5566 states and 9539 transitions. [2024-10-12 19:28:24,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-12 19:28:24,611 INFO L276 IsEmpty]: Start isEmpty. Operand 5566 states and 9539 transitions. [2024-10-12 19:28:24,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-10-12 19:28:24,636 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:28:24,637 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:28:24,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-12 19:28:24,637 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:28:24,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:28:24,637 INFO L85 PathProgramCache]: Analyzing trace with hash -1206580753, now seen corresponding path program 1 times [2024-10-12 19:28:24,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:28:24,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685905890] [2024-10-12 19:28:24,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:28:24,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:28:24,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:24,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:28:24,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:24,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:28:24,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:24,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:28:24,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:24,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:28:24,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:24,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:28:24,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:24,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:28:24,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:24,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-12 19:28:24,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:24,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-12 19:28:24,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:24,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-12 19:28:24,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:24,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-12 19:28:24,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:24,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-12 19:28:24,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:24,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-12 19:28:24,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:24,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-12 19:28:24,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:24,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-12 19:28:24,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:24,761 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-12 19:28:24,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:28:24,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685905890] [2024-10-12 19:28:24,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685905890] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:28:24,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:28:24,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:28:24,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752490277] [2024-10-12 19:28:24,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:28:24,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:28:24,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:28:24,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:28:24,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:28:24,763 INFO L87 Difference]: Start difference. First operand 5566 states and 9539 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-12 19:28:26,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:28:26,163 INFO L93 Difference]: Finished difference Result 13835 states and 24188 transitions. [2024-10-12 19:28:26,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 19:28:26,163 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 125 [2024-10-12 19:28:26,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:28:26,209 INFO L225 Difference]: With dead ends: 13835 [2024-10-12 19:28:26,210 INFO L226 Difference]: Without dead ends: 9413 [2024-10-12 19:28:26,226 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-12 19:28:26,226 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 1092 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 1436 mSolverCounterSat, 380 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1107 SdHoareTripleChecker+Valid, 740 SdHoareTripleChecker+Invalid, 1816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 380 IncrementalHoareTripleChecker+Valid, 1436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-12 19:28:26,226 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1107 Valid, 740 Invalid, 1816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [380 Valid, 1436 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-12 19:28:26,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9413 states. [2024-10-12 19:28:26,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9413 to 9255. [2024-10-12 19:28:26,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9255 states, 7663 states have (on average 1.6348688503197182) internal successors, (12528), 7668 states have internal predecessors, (12528), 1568 states have call successors, (1568), 19 states have call predecessors, (1568), 23 states have return successors, (1763), 1567 states have call predecessors, (1763), 1567 states have call successors, (1763) [2024-10-12 19:28:26,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9255 states to 9255 states and 15859 transitions. [2024-10-12 19:28:26,720 INFO L78 Accepts]: Start accepts. Automaton has 9255 states and 15859 transitions. Word has length 125 [2024-10-12 19:28:26,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:28:26,721 INFO L471 AbstractCegarLoop]: Abstraction has 9255 states and 15859 transitions. [2024-10-12 19:28:26,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-12 19:28:26,722 INFO L276 IsEmpty]: Start isEmpty. Operand 9255 states and 15859 transitions. [2024-10-12 19:28:26,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-10-12 19:28:26,749 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:28:26,749 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:28:26,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-12 19:28:26,749 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:28:26,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:28:26,750 INFO L85 PathProgramCache]: Analyzing trace with hash -1860053895, now seen corresponding path program 1 times [2024-10-12 19:28:26,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:28:26,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117354716] [2024-10-12 19:28:26,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:28:26,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:28:26,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:26,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:28:26,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:26,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:28:26,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:26,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:28:26,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:26,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:28:26,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:26,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:28:26,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:26,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:28:26,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:26,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-12 19:28:26,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:26,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-12 19:28:26,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:26,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-12 19:28:26,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:26,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-12 19:28:26,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:26,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-12 19:28:26,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:26,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-12 19:28:26,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:26,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-12 19:28:26,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:26,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-12 19:28:26,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:26,859 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-12 19:28:26,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:28:26,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117354716] [2024-10-12 19:28:26,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117354716] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:28:26,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:28:26,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:28:26,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532175619] [2024-10-12 19:28:26,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:28:26,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:28:26,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:28:26,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:28:26,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:28:26,861 INFO L87 Difference]: Start difference. First operand 9255 states and 15859 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-12 19:28:28,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:28:28,324 INFO L93 Difference]: Finished difference Result 24027 states and 41952 transitions. [2024-10-12 19:28:28,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 19:28:28,324 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 126 [2024-10-12 19:28:28,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:28:28,390 INFO L225 Difference]: With dead ends: 24027 [2024-10-12 19:28:28,391 INFO L226 Difference]: Without dead ends: 16373 [2024-10-12 19:28:28,422 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-12 19:28:28,423 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 1089 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 1502 mSolverCounterSat, 370 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1104 SdHoareTripleChecker+Valid, 783 SdHoareTripleChecker+Invalid, 1872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 370 IncrementalHoareTripleChecker+Valid, 1502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-12 19:28:28,423 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1104 Valid, 783 Invalid, 1872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [370 Valid, 1502 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-12 19:28:28,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16373 states. [2024-10-12 19:28:29,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16373 to 16215. [2024-10-12 19:28:29,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16215 states, 13420 states have (on average 1.626005961251863) internal successors, (21821), 13425 states have internal predecessors, (21821), 2771 states have call successors, (2771), 19 states have call predecessors, (2771), 23 states have return successors, (3110), 2770 states have call predecessors, (3110), 2770 states have call successors, (3110) [2024-10-12 19:28:29,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16215 states to 16215 states and 27702 transitions. [2024-10-12 19:28:29,221 INFO L78 Accepts]: Start accepts. Automaton has 16215 states and 27702 transitions. Word has length 126 [2024-10-12 19:28:29,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:28:29,222 INFO L471 AbstractCegarLoop]: Abstraction has 16215 states and 27702 transitions. [2024-10-12 19:28:29,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-12 19:28:29,223 INFO L276 IsEmpty]: Start isEmpty. Operand 16215 states and 27702 transitions. [2024-10-12 19:28:29,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-10-12 19:28:29,267 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:28:29,267 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:28:29,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-12 19:28:29,268 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:28:29,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:28:29,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1445199150, now seen corresponding path program 1 times [2024-10-12 19:28:29,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:28:29,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523035228] [2024-10-12 19:28:29,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:28:29,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:28:29,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:29,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:28:29,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:29,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:28:29,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:29,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:28:29,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:29,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:28:29,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:29,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:28:29,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:29,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:28:29,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:29,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-12 19:28:29,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:29,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-12 19:28:29,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:29,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-12 19:28:29,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:29,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-12 19:28:29,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:29,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-12 19:28:29,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:29,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-12 19:28:29,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:29,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-12 19:28:29,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:29,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-12 19:28:29,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:29,406 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-12 19:28:29,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:28:29,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523035228] [2024-10-12 19:28:29,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523035228] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:28:29,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:28:29,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:28:29,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185807183] [2024-10-12 19:28:29,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:28:29,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:28:29,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:28:29,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:28:29,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:28:29,412 INFO L87 Difference]: Start difference. First operand 16215 states and 27702 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-12 19:28:31,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:28:31,300 INFO L93 Difference]: Finished difference Result 43002 states and 74964 transitions. [2024-10-12 19:28:31,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 19:28:31,300 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 127 [2024-10-12 19:28:31,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:28:31,428 INFO L225 Difference]: With dead ends: 43002 [2024-10-12 19:28:31,428 INFO L226 Difference]: Without dead ends: 29036 [2024-10-12 19:28:31,479 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-12 19:28:31,480 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 1088 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 1430 mSolverCounterSat, 380 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1103 SdHoareTripleChecker+Valid, 738 SdHoareTripleChecker+Invalid, 1810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 380 IncrementalHoareTripleChecker+Valid, 1430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-12 19:28:31,480 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1103 Valid, 738 Invalid, 1810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [380 Valid, 1430 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-12 19:28:31,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29036 states. [2024-10-12 19:28:32,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29036 to 28878. [2024-10-12 19:28:32,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28878 states, 24044 states have (on average 1.6223174180668773) internal successors, (39007), 24049 states have internal predecessors, (39007), 4810 states have call successors, (4810), 19 states have call predecessors, (4810), 23 states have return successors, (5423), 4809 states have call predecessors, (5423), 4809 states have call successors, (5423) [2024-10-12 19:28:32,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28878 states to 28878 states and 49240 transitions. [2024-10-12 19:28:32,735 INFO L78 Accepts]: Start accepts. Automaton has 28878 states and 49240 transitions. Word has length 127 [2024-10-12 19:28:32,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:28:32,736 INFO L471 AbstractCegarLoop]: Abstraction has 28878 states and 49240 transitions. [2024-10-12 19:28:32,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-12 19:28:32,736 INFO L276 IsEmpty]: Start isEmpty. Operand 28878 states and 49240 transitions. [2024-10-12 19:28:32,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-10-12 19:28:32,770 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:28:32,770 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:28:32,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-12 19:28:32,770 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:28:32,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:28:32,771 INFO L85 PathProgramCache]: Analyzing trace with hash 226564599, now seen corresponding path program 1 times [2024-10-12 19:28:32,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:28:32,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856591770] [2024-10-12 19:28:32,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:28:32,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:28:32,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:32,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:28:32,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:32,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:28:32,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:32,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:28:32,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:32,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:28:32,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:32,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:28:32,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:32,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:28:32,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:32,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-12 19:28:32,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:32,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-12 19:28:32,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:32,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-12 19:28:32,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:32,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-12 19:28:32,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:32,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-12 19:28:32,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:32,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-12 19:28:32,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:32,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-12 19:28:32,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:32,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-12 19:28:32,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:32,882 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-12 19:28:32,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:28:32,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856591770] [2024-10-12 19:28:32,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856591770] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:28:32,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:28:32,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:28:32,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357519712] [2024-10-12 19:28:32,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:28:32,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:28:32,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:28:32,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:28:32,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:28:32,885 INFO L87 Difference]: Start difference. First operand 28878 states and 49240 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-12 19:28:35,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:28:35,542 INFO L93 Difference]: Finished difference Result 78774 states and 136523 transitions. [2024-10-12 19:28:35,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 19:28:35,542 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 128 [2024-10-12 19:28:35,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:28:35,753 INFO L225 Difference]: With dead ends: 78774 [2024-10-12 19:28:35,753 INFO L226 Difference]: Without dead ends: 52924 [2024-10-12 19:28:35,817 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-12 19:28:35,818 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 1085 mSDsluCounter, 581 mSDsCounter, 0 mSdLazyCounter, 1448 mSolverCounterSat, 378 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1100 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 1826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 378 IncrementalHoareTripleChecker+Valid, 1448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-12 19:28:35,818 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1100 Valid, 750 Invalid, 1826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [378 Valid, 1448 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-12 19:28:35,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52924 states. [2024-10-12 19:28:37,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52924 to 52766. [2024-10-12 19:28:37,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52766 states, 44217 states have (on average 1.6174095935952235) internal successors, (71517), 44222 states have internal predecessors, (71517), 8525 states have call successors, (8525), 19 states have call predecessors, (8525), 23 states have return successors, (9670), 8524 states have call predecessors, (9670), 8524 states have call successors, (9670) [2024-10-12 19:28:38,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52766 states to 52766 states and 89712 transitions. [2024-10-12 19:28:38,689 INFO L78 Accepts]: Start accepts. Automaton has 52766 states and 89712 transitions. Word has length 128 [2024-10-12 19:28:38,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:28:38,693 INFO L471 AbstractCegarLoop]: Abstraction has 52766 states and 89712 transitions. [2024-10-12 19:28:38,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-12 19:28:38,693 INFO L276 IsEmpty]: Start isEmpty. Operand 52766 states and 89712 transitions. [2024-10-12 19:28:38,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-10-12 19:28:38,736 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:28:38,736 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:28:38,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-12 19:28:38,737 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:28:38,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:28:38,738 INFO L85 PathProgramCache]: Analyzing trace with hash 213656558, now seen corresponding path program 1 times [2024-10-12 19:28:38,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:28:38,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012693584] [2024-10-12 19:28:38,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:28:38,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:28:38,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:38,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:28:38,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:38,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:28:38,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:38,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:28:38,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:38,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:28:38,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:38,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:28:38,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:38,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:28:38,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:38,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-12 19:28:38,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:38,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-12 19:28:38,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:38,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-12 19:28:38,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:38,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-12 19:28:38,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:38,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-12 19:28:38,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:38,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-12 19:28:38,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:38,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-12 19:28:38,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:38,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-12 19:28:38,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:38,844 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-12 19:28:38,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:28:38,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012693584] [2024-10-12 19:28:38,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012693584] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:28:38,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:28:38,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:28:38,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369902623] [2024-10-12 19:28:38,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:28:38,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:28:38,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:28:38,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:28:38,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:28:38,847 INFO L87 Difference]: Start difference. First operand 52766 states and 89712 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-12 19:28:42,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:28:42,226 INFO L93 Difference]: Finished difference Result 98549 states and 171228 transitions. [2024-10-12 19:28:42,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 19:28:42,227 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 129 [2024-10-12 19:28:42,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:28:42,893 INFO L225 Difference]: With dead ends: 98549 [2024-10-12 19:28:42,894 INFO L226 Difference]: Without dead ends: 98396 [2024-10-12 19:28:42,937 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-12 19:28:42,938 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 1080 mSDsluCounter, 580 mSDsCounter, 0 mSdLazyCounter, 1446 mSolverCounterSat, 373 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1094 SdHoareTripleChecker+Valid, 748 SdHoareTripleChecker+Invalid, 1819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 373 IncrementalHoareTripleChecker+Valid, 1446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-12 19:28:42,938 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1094 Valid, 748 Invalid, 1819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [373 Valid, 1446 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-12 19:28:42,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98396 states. [2024-10-12 19:28:46,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98396 to 98238. [2024-10-12 19:28:46,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98238 states, 82890 states have (on average 1.6111231752925563) internal successors, (133546), 82895 states have internal predecessors, (133546), 15324 states have call successors, (15324), 19 states have call predecessors, (15324), 23 states have return successors, (17515), 15323 states have call predecessors, (17515), 15323 states have call successors, (17515) [2024-10-12 19:28:47,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98238 states to 98238 states and 166385 transitions. [2024-10-12 19:28:47,171 INFO L78 Accepts]: Start accepts. Automaton has 98238 states and 166385 transitions. Word has length 129 [2024-10-12 19:28:47,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:28:47,171 INFO L471 AbstractCegarLoop]: Abstraction has 98238 states and 166385 transitions. [2024-10-12 19:28:47,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-12 19:28:47,172 INFO L276 IsEmpty]: Start isEmpty. Operand 98238 states and 166385 transitions. [2024-10-12 19:28:47,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-10-12 19:28:47,237 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:28:47,237 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:28:47,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-12 19:28:47,238 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:28:47,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:28:47,238 INFO L85 PathProgramCache]: Analyzing trace with hash -434827464, now seen corresponding path program 1 times [2024-10-12 19:28:47,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:28:47,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762139685] [2024-10-12 19:28:47,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:28:47,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:28:47,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:47,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:28:47,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:47,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:28:47,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:47,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:28:47,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:47,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:28:47,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:47,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:28:47,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:47,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:28:47,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:47,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-12 19:28:47,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:47,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-12 19:28:47,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:47,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-12 19:28:47,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:47,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-12 19:28:47,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:47,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-12 19:28:47,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:47,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-12 19:28:47,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:47,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-12 19:28:47,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:47,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-12 19:28:47,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:47,435 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-12 19:28:47,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:28:47,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762139685] [2024-10-12 19:28:47,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762139685] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:28:47,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:28:47,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-12 19:28:47,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332642076] [2024-10-12 19:28:47,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:28:47,437 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-12 19:28:47,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:28:47,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-12 19:28:47,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-12 19:28:47,438 INFO L87 Difference]: Start difference. First operand 98238 states and 166385 transitions. Second operand has 9 states, 8 states have (on average 10.875) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-12 19:28:51,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:28:51,201 INFO L93 Difference]: Finished difference Result 98537 states and 170121 transitions. [2024-10-12 19:28:51,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-12 19:28:51,201 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.875) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) Word has length 130 [2024-10-12 19:28:51,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:28:51,756 INFO L225 Difference]: With dead ends: 98537 [2024-10-12 19:28:51,756 INFO L226 Difference]: Without dead ends: 98391 [2024-10-12 19:28:51,818 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=109, Invalid=271, Unknown=0, NotChecked=0, Total=380 [2024-10-12 19:28:51,819 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 992 mSDsluCounter, 850 mSDsCounter, 0 mSdLazyCounter, 2484 mSolverCounterSat, 316 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 992 SdHoareTripleChecker+Valid, 1016 SdHoareTripleChecker+Invalid, 2800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 316 IncrementalHoareTripleChecker+Valid, 2484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-12 19:28:51,821 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [992 Valid, 1016 Invalid, 2800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [316 Valid, 2484 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-12 19:28:51,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98391 states. [2024-10-12 19:28:54,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98391 to 98238. [2024-10-12 19:28:55,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98238 states, 82890 states have (on average 1.6111111111111112) internal successors, (133545), 82895 states have internal predecessors, (133545), 15324 states have call successors, (15324), 19 states have call predecessors, (15324), 23 states have return successors, (17515), 15323 states have call predecessors, (17515), 15323 states have call successors, (17515) [2024-10-12 19:28:55,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98238 states to 98238 states and 166384 transitions. [2024-10-12 19:28:55,437 INFO L78 Accepts]: Start accepts. Automaton has 98238 states and 166384 transitions. Word has length 130 [2024-10-12 19:28:55,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:28:55,438 INFO L471 AbstractCegarLoop]: Abstraction has 98238 states and 166384 transitions. [2024-10-12 19:28:55,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.875) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-12 19:28:55,438 INFO L276 IsEmpty]: Start isEmpty. Operand 98238 states and 166384 transitions. [2024-10-12 19:28:55,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-10-12 19:28:55,504 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:28:55,504 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:28:55,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-12 19:28:55,505 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:28:55,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:28:55,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1022752308, now seen corresponding path program 1 times [2024-10-12 19:28:55,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:28:55,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204092214] [2024-10-12 19:28:55,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:28:55,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:28:55,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:55,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:28:55,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:55,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:28:55,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:55,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:28:55,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:55,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:28:55,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:55,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:28:55,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:55,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:28:55,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:55,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-12 19:28:55,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:55,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-12 19:28:55,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:55,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-12 19:28:55,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:55,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-12 19:28:55,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:55,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-12 19:28:55,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:55,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-12 19:28:55,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:55,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-12 19:28:55,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:55,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-12 19:28:55,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:55,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-12 19:28:55,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:28:55,747 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-12 19:28:55,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:28:55,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204092214] [2024-10-12 19:28:55,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204092214] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:28:55,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:28:55,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-12 19:28:55,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166800269] [2024-10-12 19:28:55,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:28:55,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-12 19:28:55,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:28:55,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-12 19:28:55,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-12 19:28:55,750 INFO L87 Difference]: Start difference. First operand 98238 states and 166384 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 5 states have internal predecessors, (92), 2 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2024-10-12 19:29:00,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:29:00,791 INFO L93 Difference]: Finished difference Result 98831 states and 170572 transitions. [2024-10-12 19:29:00,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-12 19:29:00,794 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 5 states have internal predecessors, (92), 2 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 137 [2024-10-12 19:29:00,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:29:01,217 INFO L225 Difference]: With dead ends: 98831 [2024-10-12 19:29:01,218 INFO L226 Difference]: Without dead ends: 98685 [2024-10-12 19:29:01,290 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=184, Invalid=466, Unknown=0, NotChecked=0, Total=650 [2024-10-12 19:29:01,291 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 1898 mSDsluCounter, 829 mSDsCounter, 0 mSdLazyCounter, 3805 mSolverCounterSat, 497 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1912 SdHoareTripleChecker+Valid, 996 SdHoareTripleChecker+Invalid, 4302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 497 IncrementalHoareTripleChecker+Valid, 3805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-10-12 19:29:01,292 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1912 Valid, 996 Invalid, 4302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [497 Valid, 3805 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-10-12 19:29:01,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98685 states. [2024-10-12 19:29:04,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98685 to 98386. [2024-10-12 19:29:04,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98386 states, 83003 states have (on average 1.6109176776743008) internal successors, (133711), 83008 states have internal predecessors, (133711), 15346 states have call successors, (15346), 30 states have call predecessors, (15346), 36 states have return successors, (17540), 15347 states have call predecessors, (17540), 15344 states have call successors, (17540) [2024-10-12 19:29:05,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98386 states to 98386 states and 166597 transitions. [2024-10-12 19:29:05,108 INFO L78 Accepts]: Start accepts. Automaton has 98386 states and 166597 transitions. Word has length 137 [2024-10-12 19:29:05,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:29:05,109 INFO L471 AbstractCegarLoop]: Abstraction has 98386 states and 166597 transitions. [2024-10-12 19:29:05,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 5 states have internal predecessors, (92), 2 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2024-10-12 19:29:05,109 INFO L276 IsEmpty]: Start isEmpty. Operand 98386 states and 166597 transitions. [2024-10-12 19:29:05,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-10-12 19:29:05,170 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:29:05,170 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:29:05,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-12 19:29:05,171 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:29:05,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:29:05,171 INFO L85 PathProgramCache]: Analyzing trace with hash 87428104, now seen corresponding path program 1 times [2024-10-12 19:29:05,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:29:05,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820431045] [2024-10-12 19:29:05,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:29:05,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:29:05,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:05,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:29:05,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:05,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:29:05,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:05,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:29:05,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:05,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:29:05,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:05,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:29:05,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:05,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:29:05,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:05,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-12 19:29:05,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:05,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-12 19:29:05,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:05,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-12 19:29:05,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:05,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-12 19:29:05,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:05,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-12 19:29:05,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:05,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-12 19:29:05,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:05,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-12 19:29:05,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat