./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec7_product30.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/email_spec7_product30.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 f0b632d57a1aaab7587941b987ac776406d0d2705d0d18f7c4a153447ae1ce66 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 15:08:34,471 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 15:08:34,539 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 15:08:34,543 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 15:08:34,544 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 15:08:34,584 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 15:08:34,585 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 15:08:34,585 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 15:08:34,586 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 15:08:34,586 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 15:08:34,587 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 15:08:34,587 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 15:08:34,588 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 15:08:34,589 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 15:08:34,590 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 15:08:34,591 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 15:08:34,591 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 15:08:34,591 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 15:08:34,592 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 15:08:34,592 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 15:08:34,592 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 15:08:34,595 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 15:08:34,595 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 15:08:34,595 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 15:08:34,596 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 15:08:34,596 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 15:08:34,596 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 15:08:34,596 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 15:08:34,597 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 15:08:34,597 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 15:08:34,597 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 15:08:34,598 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 15:08:34,598 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 15:08:34,598 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 15:08:34,599 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 15:08:34,599 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 15:08:34,599 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 15:08:34,600 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 15:08:34,600 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 15:08:34,600 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 15:08:34,600 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 15:08:34,600 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 15:08:34,601 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f0b632d57a1aaab7587941b987ac776406d0d2705d0d18f7c4a153447ae1ce66 [2024-11-08 15:08:34,872 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 15:08:34,897 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 15:08:34,901 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 15:08:34,902 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 15:08:34,903 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 15:08:34,905 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec7_product30.cil.c [2024-11-08 15:08:36,368 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 15:08:36,642 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 15:08:36,643 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec7_product30.cil.c [2024-11-08 15:08:36,667 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b9608d42/e0f8a5912b434c9cb73e1c747bb68341/FLAG767af0a31 [2024-11-08 15:08:36,939 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b9608d42/e0f8a5912b434c9cb73e1c747bb68341 [2024-11-08 15:08:36,941 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 15:08:36,944 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 15:08:36,946 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 15:08:36,946 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 15:08:36,953 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 15:08:36,954 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 03:08:36" (1/1) ... [2024-11-08 15:08:36,956 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79bf0d8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:08:36, skipping insertion in model container [2024-11-08 15:08:36,957 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 03:08:36" (1/1) ... [2024-11-08 15:08:37,019 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 15:08:37,506 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec7_product30.cil.c[50838,50851] [2024-11-08 15:08:37,601 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 15:08:37,615 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 15:08:37,624 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [48] [2024-11-08 15:08:37,626 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [414] [2024-11-08 15:08:37,626 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [639] [2024-11-08 15:08:37,626 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptVerify_spec.i","") [1051] [2024-11-08 15:08:37,627 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1082] [2024-11-08 15:08:37,627 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1100] [2024-11-08 15:08:37,627 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2180] [2024-11-08 15:08:37,627 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2189] [2024-11-08 15:08:37,628 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2227] [2024-11-08 15:08:37,628 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2587] [2024-11-08 15:08:37,629 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2723] [2024-11-08 15:08:37,702 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec7_product30.cil.c[50838,50851] [2024-11-08 15:08:37,730 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 15:08:37,771 INFO L204 MainTranslator]: Completed translation [2024-11-08 15:08:37,771 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:08:37 WrapperNode [2024-11-08 15:08:37,772 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 15:08:37,773 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 15:08:37,773 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 15:08:37,773 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 15:08:37,779 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:08:37" (1/1) ... [2024-11-08 15:08:37,813 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:08:37" (1/1) ... [2024-11-08 15:08:37,877 INFO L138 Inliner]: procedures = 131, calls = 203, calls flagged for inlining = 60, calls inlined = 50, statements flattened = 900 [2024-11-08 15:08:37,878 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 15:08:37,878 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 15:08:37,878 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 15:08:37,879 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 15:08:37,890 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:08:37" (1/1) ... [2024-11-08 15:08:37,890 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:08:37" (1/1) ... [2024-11-08 15:08:37,896 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:08:37" (1/1) ... [2024-11-08 15:08:37,920 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4]. 29 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0]. [2024-11-08 15:08:37,920 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:08:37" (1/1) ... [2024-11-08 15:08:37,920 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:08:37" (1/1) ... [2024-11-08 15:08:37,936 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:08:37" (1/1) ... [2024-11-08 15:08:37,943 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:08:37" (1/1) ... [2024-11-08 15:08:37,950 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:08:37" (1/1) ... [2024-11-08 15:08:37,954 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:08:37" (1/1) ... [2024-11-08 15:08:37,965 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 15:08:37,966 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 15:08:37,966 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 15:08:37,966 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 15:08:37,971 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:08:37" (1/1) ... [2024-11-08 15:08:37,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 15:08:37,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:08:38,016 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 15:08:38,018 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 15:08:38,088 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-11-08 15:08:38,088 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-11-08 15:08:38,088 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-11-08 15:08:38,088 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-11-08 15:08:38,088 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-11-08 15:08:38,088 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-11-08 15:08:38,088 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-08 15:08:38,089 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-08 15:08:38,089 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-08 15:08:38,089 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-08 15:08:38,089 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-08 15:08:38,089 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-08 15:08:38,089 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-08 15:08:38,089 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-08 15:08:38,089 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-11-08 15:08:38,089 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-11-08 15:08:38,090 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-08 15:08:38,090 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-08 15:08:38,090 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-08 15:08:38,090 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-08 15:08:38,090 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-08 15:08:38,090 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-08 15:08:38,090 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-08 15:08:38,090 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-08 15:08:38,090 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 15:08:38,090 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-08 15:08:38,091 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-08 15:08:38,091 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-11-08 15:08:38,091 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-11-08 15:08:38,091 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-08 15:08:38,091 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-08 15:08:38,091 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-08 15:08:38,091 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-08 15:08:38,091 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-08 15:08:38,092 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-08 15:08:38,092 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-11-08 15:08:38,092 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-11-08 15:08:38,092 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-08 15:08:38,092 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-08 15:08:38,092 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-11-08 15:08:38,092 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-11-08 15:08:38,092 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-08 15:08:38,093 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-08 15:08:38,093 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-08 15:08:38,093 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-08 15:08:38,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 15:08:38,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 15:08:38,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 15:08:38,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-08 15:08:38,093 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-08 15:08:38,093 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-08 15:08:38,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 15:08:38,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 15:08:38,285 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 15:08:38,287 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 15:08:39,055 INFO L? ?]: Removed 426 outVars from TransFormulas that were not future-live. [2024-11-08 15:08:39,055 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 15:08:39,084 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 15:08:39,084 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 15:08:39,085 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 03:08:39 BoogieIcfgContainer [2024-11-08 15:08:39,086 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 15:08:39,088 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 15:08:39,088 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 15:08:39,092 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 15:08:39,092 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 03:08:36" (1/3) ... [2024-11-08 15:08:39,092 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7692383b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 03:08:39, skipping insertion in model container [2024-11-08 15:08:39,093 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:08:37" (2/3) ... [2024-11-08 15:08:39,093 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7692383b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 03:08:39, skipping insertion in model container [2024-11-08 15:08:39,093 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 03:08:39" (3/3) ... [2024-11-08 15:08:39,094 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec7_product30.cil.c [2024-11-08 15:08:39,111 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 15:08:39,111 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 15:08:39,194 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 15:08:39,201 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;@7b3a7ebe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 15:08:39,201 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 15:08:39,208 INFO L276 IsEmpty]: Start isEmpty. Operand has 344 states, 267 states have (on average 1.5168539325842696) internal successors, (405), 271 states have internal predecessors, (405), 52 states have call successors, (52), 23 states have call predecessors, (52), 23 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-08 15:08:39,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-08 15:08:39,236 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:08:39,239 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:08:39,239 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:08:39,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:08:39,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1085574528, now seen corresponding path program 1 times [2024-11-08 15:08:39,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:08:39,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444794847] [2024-11-08 15:08:39,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:08:39,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:08:39,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:39,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:08:39,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:39,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:08:39,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:39,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:08:39,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:39,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-08 15:08:39,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:39,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-08 15:08:39,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:40,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 15:08:40,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:40,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 15:08:40,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:40,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-08 15:08:40,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:40,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 15:08:40,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:40,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-08 15:08:40,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:40,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-08 15:08:40,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:40,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 15:08:40,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:40,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 15:08:40,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:40,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 15:08:40,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:40,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-08 15:08:40,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:40,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 15:08:40,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:40,087 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-08 15:08:40,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:08:40,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444794847] [2024-11-08 15:08:40,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444794847] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:08:40,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1586853803] [2024-11-08 15:08:40,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:08:40,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:08:40,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:08:40,092 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 15:08:40,094 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 15:08:40,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:40,431 INFO L255 TraceCheckSpWp]: Trace formula consists of 1084 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-08 15:08:40,439 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:08:40,465 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-08 15:08:40,468 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 15:08:40,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1586853803] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:08:40,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 15:08:40,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2024-11-08 15:08:40,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586438684] [2024-11-08 15:08:40,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:08:40,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 15:08:40,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:08:40,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 15:08:40,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-08 15:08:40,504 INFO L87 Difference]: Start difference. First operand has 344 states, 267 states have (on average 1.5168539325842696) internal successors, (405), 271 states have internal predecessors, (405), 52 states have call successors, (52), 23 states have call predecessors, (52), 23 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) Second operand has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-08 15:08:40,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:08:40,580 INFO L93 Difference]: Finished difference Result 534 states and 772 transitions. [2024-11-08 15:08:40,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 15:08:40,583 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 120 [2024-11-08 15:08:40,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:08:40,602 INFO L225 Difference]: With dead ends: 534 [2024-11-08 15:08:40,602 INFO L226 Difference]: Without dead ends: 337 [2024-11-08 15:08:40,608 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-08 15:08:40,614 INFO L432 NwaCegarLoop]: 505 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:08:40,614 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 505 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:08:40,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2024-11-08 15:08:40,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 337. [2024-11-08 15:08:40,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 261 states have (on average 1.5095785440613028) internal successors, (394), 264 states have internal predecessors, (394), 52 states have call successors, (52), 23 states have call predecessors, (52), 23 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-08 15:08:40,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 497 transitions. [2024-11-08 15:08:40,690 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 497 transitions. Word has length 120 [2024-11-08 15:08:40,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:08:40,692 INFO L471 AbstractCegarLoop]: Abstraction has 337 states and 497 transitions. [2024-11-08 15:08:40,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-08 15:08:40,693 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 497 transitions. [2024-11-08 15:08:40,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-08 15:08:40,700 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:08:40,700 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:08:40,720 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 15:08:40,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-08 15:08:40,902 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:08:40,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:08:40,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1999884835, now seen corresponding path program 1 times [2024-11-08 15:08:40,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:08:40,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950599532] [2024-11-08 15:08:40,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:08:40,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:08:40,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:41,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:08:41,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:41,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:08:41,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:41,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:08:41,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:41,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-08 15:08:41,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:41,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-08 15:08:41,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:41,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 15:08:41,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:41,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-08 15:08:41,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:41,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 15:08:41,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:41,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 15:08:41,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:41,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-08 15:08:41,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:41,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 15:08:41,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:41,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 15:08:41,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:41,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 15:08:41,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:41,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-08 15:08:41,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:41,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-08 15:08:41,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:41,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 15:08:41,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:41,228 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-08 15:08:41,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:08:41,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950599532] [2024-11-08 15:08:41,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950599532] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:08:41,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2134857008] [2024-11-08 15:08:41,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:08:41,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:08:41,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:08:41,231 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 15:08:41,232 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 15:08:41,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:41,551 INFO L255 TraceCheckSpWp]: Trace formula consists of 1085 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 15:08:41,557 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:08:41,592 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-08 15:08:41,596 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 15:08:41,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2134857008] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:08:41,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 15:08:41,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-08 15:08:41,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292578031] [2024-11-08 15:08:41,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:08:41,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:08:41,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:08:41,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:08:41,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-08 15:08:41,601 INFO L87 Difference]: Start difference. First operand 337 states and 497 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-08 15:08:41,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:08:41,639 INFO L93 Difference]: Finished difference Result 524 states and 753 transitions. [2024-11-08 15:08:41,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:08:41,640 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 121 [2024-11-08 15:08:41,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:08:41,643 INFO L225 Difference]: With dead ends: 524 [2024-11-08 15:08:41,643 INFO L226 Difference]: Without dead ends: 340 [2024-11-08 15:08:41,645 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-08 15:08:41,646 INFO L432 NwaCegarLoop]: 495 mSDtfsCounter, 1 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 988 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:08:41,647 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 988 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:08:41,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2024-11-08 15:08:41,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 339. [2024-11-08 15:08:41,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 263 states have (on average 1.505703422053232) internal successors, (396), 266 states have internal predecessors, (396), 52 states have call successors, (52), 23 states have call predecessors, (52), 23 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-08 15:08:41,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 499 transitions. [2024-11-08 15:08:41,675 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 499 transitions. Word has length 121 [2024-11-08 15:08:41,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:08:41,676 INFO L471 AbstractCegarLoop]: Abstraction has 339 states and 499 transitions. [2024-11-08 15:08:41,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-08 15:08:41,676 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 499 transitions. [2024-11-08 15:08:41,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-08 15:08:41,678 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:08:41,678 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:08:41,695 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-08 15:08:41,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-08 15:08:41,880 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:08:41,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:08:41,880 INFO L85 PathProgramCache]: Analyzing trace with hash -900691787, now seen corresponding path program 1 times [2024-11-08 15:08:41,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:08:41,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155324705] [2024-11-08 15:08:41,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:08:41,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:08:41,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:42,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:08:42,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:42,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:08:42,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:42,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:08:42,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:42,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-08 15:08:42,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:42,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-08 15:08:42,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:42,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 15:08:42,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:42,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-08 15:08:42,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:42,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 15:08:42,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:42,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 15:08:42,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:42,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-08 15:08:42,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:42,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-08 15:08:42,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:42,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-08 15:08:42,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:42,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-08 15:08:42,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:42,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-08 15:08:42,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:42,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-08 15:08:42,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:42,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 15:08:42,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:42,167 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-08 15:08:42,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:08:42,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155324705] [2024-11-08 15:08:42,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155324705] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:08:42,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [712344153] [2024-11-08 15:08:42,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:08:42,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:08:42,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:08:42,170 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 15:08:42,171 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 15:08:42,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:42,459 INFO L255 TraceCheckSpWp]: Trace formula consists of 1110 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 15:08:42,463 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:08:42,483 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-08 15:08:42,483 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 15:08:42,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [712344153] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:08:42,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 15:08:42,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-08 15:08:42,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090561718] [2024-11-08 15:08:42,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:08:42,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:08:42,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:08:42,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:08:42,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-08 15:08:42,487 INFO L87 Difference]: Start difference. First operand 339 states and 499 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-08 15:08:42,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:08:42,525 INFO L93 Difference]: Finished difference Result 708 states and 1057 transitions. [2024-11-08 15:08:42,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:08:42,525 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 130 [2024-11-08 15:08:42,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:08:42,529 INFO L225 Difference]: With dead ends: 708 [2024-11-08 15:08:42,529 INFO L226 Difference]: Without dead ends: 396 [2024-11-08 15:08:42,530 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-08 15:08:42,531 INFO L432 NwaCegarLoop]: 512 mSDtfsCounter, 107 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 963 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:08:42,532 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 963 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:08:42,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2024-11-08 15:08:42,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 388. [2024-11-08 15:08:42,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 301 states have (on average 1.521594684385382) internal successors, (458), 304 states have internal predecessors, (458), 63 states have call successors, (63), 23 states have call predecessors, (63), 23 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-08 15:08:42,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 583 transitions. [2024-11-08 15:08:42,582 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 583 transitions. Word has length 130 [2024-11-08 15:08:42,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:08:42,583 INFO L471 AbstractCegarLoop]: Abstraction has 388 states and 583 transitions. [2024-11-08 15:08:42,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-08 15:08:42,584 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 583 transitions. [2024-11-08 15:08:42,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-08 15:08:42,587 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:08:42,587 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:08:42,604 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-08 15:08:42,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:08:42,788 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:08:42,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:08:42,788 INFO L85 PathProgramCache]: Analyzing trace with hash -2052561232, now seen corresponding path program 1 times [2024-11-08 15:08:42,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:08:42,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502403215] [2024-11-08 15:08:42,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:08:42,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:08:42,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:42,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:08:42,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:42,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:08:42,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:42,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:08:42,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:42,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-08 15:08:42,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:42,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-08 15:08:42,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:42,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 15:08:43,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:43,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-08 15:08:43,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:43,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-08 15:08:43,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:43,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-08 15:08:43,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:43,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 15:08:43,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:43,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 15:08:43,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:43,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-08 15:08:43,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:43,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-08 15:08:43,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:43,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-08 15:08:43,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:43,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-08 15:08:43,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:43,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 15:08:43,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:43,049 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-08 15:08:43,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:08:43,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502403215] [2024-11-08 15:08:43,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502403215] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:08:43,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [874390550] [2024-11-08 15:08:43,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:08:43,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:08:43,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:08:43,058 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 15:08:43,059 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 15:08:43,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:43,369 INFO L255 TraceCheckSpWp]: Trace formula consists of 1115 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 15:08:43,373 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:08:43,442 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-08 15:08:43,443 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 15:08:43,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [874390550] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:08:43,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 15:08:43,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-11-08 15:08:43,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219436619] [2024-11-08 15:08:43,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:08:43,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 15:08:43,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:08:43,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 15:08:43,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-08 15:08:43,447 INFO L87 Difference]: Start difference. First operand 388 states and 583 transitions. Second operand has 5 states, 4 states have (on average 21.0) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-08 15:08:43,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:08:43,512 INFO L93 Difference]: Finished difference Result 767 states and 1156 transitions. [2024-11-08 15:08:43,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 15:08:43,512 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.0) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 131 [2024-11-08 15:08:43,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:08:43,517 INFO L225 Difference]: With dead ends: 767 [2024-11-08 15:08:43,517 INFO L226 Difference]: Without dead ends: 390 [2024-11-08 15:08:43,519 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-08 15:08:43,520 INFO L432 NwaCegarLoop]: 489 mSDtfsCounter, 2 mSDsluCounter, 1456 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1945 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:08:43,520 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1945 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:08:43,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2024-11-08 15:08:43,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 390. [2024-11-08 15:08:43,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 302 states have (on average 1.5198675496688743) internal successors, (459), 306 states have internal predecessors, (459), 63 states have call successors, (63), 23 states have call predecessors, (63), 24 states have return successors, (64), 62 states have call predecessors, (64), 62 states have call successors, (64) [2024-11-08 15:08:43,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 586 transitions. [2024-11-08 15:08:43,551 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 586 transitions. Word has length 131 [2024-11-08 15:08:43,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:08:43,551 INFO L471 AbstractCegarLoop]: Abstraction has 390 states and 586 transitions. [2024-11-08 15:08:43,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.0) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-08 15:08:43,551 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 586 transitions. [2024-11-08 15:08:43,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-08 15:08:43,556 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:08:43,556 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:08:43,576 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-08 15:08:43,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:08:43,757 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:08:43,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:08:43,758 INFO L85 PathProgramCache]: Analyzing trace with hash 903079965, now seen corresponding path program 1 times [2024-11-08 15:08:43,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:08:43,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017029147] [2024-11-08 15:08:43,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:08:43,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:08:43,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:43,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:08:43,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:43,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:08:43,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:43,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:08:43,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:43,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:08:43,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:43,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-08 15:08:43,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:43,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 15:08:43,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:43,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 15:08:43,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:44,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-08 15:08:44,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:44,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-08 15:08:44,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:44,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 15:08:44,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:44,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 15:08:44,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:44,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 15:08:44,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:44,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 15:08:44,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:44,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-08 15:08:44,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:44,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-08 15:08:44,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:44,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 15:08:44,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:44,029 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-08 15:08:44,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:08:44,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017029147] [2024-11-08 15:08:44,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017029147] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:08:44,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1460219956] [2024-11-08 15:08:44,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:08:44,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:08:44,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:08:44,032 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 15:08:44,033 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 15:08:44,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:44,324 INFO L255 TraceCheckSpWp]: Trace formula consists of 1116 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 15:08:44,327 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:08:44,381 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-08 15:08:44,382 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 15:08:44,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1460219956] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:08:44,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 15:08:44,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-11-08 15:08:44,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069321517] [2024-11-08 15:08:44,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:08:44,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 15:08:44,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:08:44,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 15:08:44,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-08 15:08:44,384 INFO L87 Difference]: Start difference. First operand 390 states and 586 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-08 15:08:44,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:08:44,450 INFO L93 Difference]: Finished difference Result 769 states and 1161 transitions. [2024-11-08 15:08:44,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 15:08:44,450 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 132 [2024-11-08 15:08:44,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:08:44,453 INFO L225 Difference]: With dead ends: 769 [2024-11-08 15:08:44,453 INFO L226 Difference]: Without dead ends: 392 [2024-11-08 15:08:44,455 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-08 15:08:44,455 INFO L432 NwaCegarLoop]: 487 mSDtfsCounter, 2 mSDsluCounter, 1444 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1931 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:08:44,456 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1931 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:08:44,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2024-11-08 15:08:44,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 392. [2024-11-08 15:08:44,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 303 states have (on average 1.518151815181518) internal successors, (460), 308 states have internal predecessors, (460), 63 states have call successors, (63), 23 states have call predecessors, (63), 25 states have return successors, (69), 62 states have call predecessors, (69), 62 states have call successors, (69) [2024-11-08 15:08:44,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 592 transitions. [2024-11-08 15:08:44,475 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 592 transitions. Word has length 132 [2024-11-08 15:08:44,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:08:44,475 INFO L471 AbstractCegarLoop]: Abstraction has 392 states and 592 transitions. [2024-11-08 15:08:44,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-08 15:08:44,476 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 592 transitions. [2024-11-08 15:08:44,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-08 15:08:44,478 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:08:44,478 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:08:44,499 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-08 15:08:44,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:08:44,679 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:08:44,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:08:44,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1904527609, now seen corresponding path program 1 times [2024-11-08 15:08:44,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:08:44,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398677114] [2024-11-08 15:08:44,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:08:44,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:08:44,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:44,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:08:44,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:44,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:08:44,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:44,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:08:44,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:44,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:08:44,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:44,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:08:44,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:44,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 15:08:44,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:44,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 15:08:44,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:44,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 15:08:44,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:44,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 15:08:44,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:44,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 15:08:44,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:44,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 15:08:44,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:44,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-08 15:08:44,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:44,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-08 15:08:44,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:44,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-08 15:08:44,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:44,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-08 15:08:44,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:44,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 15:08:44,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:44,940 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-08 15:08:44,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:08:44,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398677114] [2024-11-08 15:08:44,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398677114] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:08:44,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:08:44,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 15:08:44,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436065118] [2024-11-08 15:08:44,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:08:44,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 15:08:44,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:08:44,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 15:08:44,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-08 15:08:44,942 INFO L87 Difference]: Start difference. First operand 392 states and 592 transitions. Second operand has 9 states, 8 states have (on average 10.25) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-08 15:08:46,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:08:46,705 INFO L93 Difference]: Finished difference Result 873 states and 1320 transitions. [2024-11-08 15:08:46,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 15:08:46,706 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.25) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 133 [2024-11-08 15:08:46,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:08:46,710 INFO L225 Difference]: With dead ends: 873 [2024-11-08 15:08:46,710 INFO L226 Difference]: Without dead ends: 504 [2024-11-08 15:08:46,711 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-08 15:08:46,712 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 1209 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 1999 mSolverCounterSat, 377 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1210 SdHoareTripleChecker+Valid, 1108 SdHoareTripleChecker+Invalid, 2376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 377 IncrementalHoareTripleChecker+Valid, 1999 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-08 15:08:46,715 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1210 Valid, 1108 Invalid, 2376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [377 Valid, 1999 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-08 15:08:46,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2024-11-08 15:08:46,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 392. [2024-11-08 15:08:46,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 303 states have (on average 1.518151815181518) internal successors, (460), 308 states have internal predecessors, (460), 63 states have call successors, (63), 23 states have call predecessors, (63), 25 states have return successors, (68), 62 states have call predecessors, (68), 62 states have call successors, (68) [2024-11-08 15:08:46,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 591 transitions. [2024-11-08 15:08:46,766 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 591 transitions. Word has length 133 [2024-11-08 15:08:46,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:08:46,769 INFO L471 AbstractCegarLoop]: Abstraction has 392 states and 591 transitions. [2024-11-08 15:08:46,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.25) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-08 15:08:46,769 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 591 transitions. [2024-11-08 15:08:46,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-08 15:08:46,772 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:08:46,773 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:08:46,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 15:08:46,773 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:08:46,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:08:46,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1517342532, now seen corresponding path program 2 times [2024-11-08 15:08:46,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:08:46,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005785373] [2024-11-08 15:08:46,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:08:46,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:08:46,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:46,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:08:46,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:46,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:08:46,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:46,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:08:46,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:46,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:08:46,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:46,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:08:46,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:46,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 15:08:46,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:46,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 15:08:46,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:46,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 15:08:46,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:46,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-08 15:08:46,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:46,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 15:08:46,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:46,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 15:08:46,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:46,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-08 15:08:46,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:46,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-08 15:08:46,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:46,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-08 15:08:46,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:46,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 15:08:46,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:46,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 15:08:46,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:46,983 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-08 15:08:46,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:08:46,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005785373] [2024-11-08 15:08:46,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005785373] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:08:46,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:08:46,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 15:08:46,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646379921] [2024-11-08 15:08:46,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:08:46,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 15:08:46,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:08:46,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 15:08:46,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-08 15:08:46,986 INFO L87 Difference]: Start difference. First operand 392 states and 591 transitions. Second operand has 9 states, 8 states have (on average 10.375) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-08 15:08:48,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:08:48,868 INFO L93 Difference]: Finished difference Result 875 states and 1323 transitions. [2024-11-08 15:08:48,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 15:08:48,870 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.375) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 134 [2024-11-08 15:08:48,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:08:48,875 INFO L225 Difference]: With dead ends: 875 [2024-11-08 15:08:48,875 INFO L226 Difference]: Without dead ends: 506 [2024-11-08 15:08:48,877 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-08 15:08:48,878 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 1120 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 2171 mSolverCounterSat, 338 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1121 SdHoareTripleChecker+Valid, 1108 SdHoareTripleChecker+Invalid, 2509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 338 IncrementalHoareTripleChecker+Valid, 2171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-08 15:08:48,879 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1121 Valid, 1108 Invalid, 2509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [338 Valid, 2171 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-08 15:08:48,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2024-11-08 15:08:48,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 394. [2024-11-08 15:08:48,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 304 states have (on average 1.5164473684210527) internal successors, (461), 310 states have internal predecessors, (461), 63 states have call successors, (63), 23 states have call predecessors, (63), 26 states have return successors, (70), 62 states have call predecessors, (70), 62 states have call successors, (70) [2024-11-08 15:08:48,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 594 transitions. [2024-11-08 15:08:48,921 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 594 transitions. Word has length 134 [2024-11-08 15:08:48,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:08:48,922 INFO L471 AbstractCegarLoop]: Abstraction has 394 states and 594 transitions. [2024-11-08 15:08:48,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.375) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-08 15:08:48,922 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 594 transitions. [2024-11-08 15:08:48,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-08 15:08:48,925 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:08:48,925 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:08:48,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 15:08:48,925 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:08:48,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:08:48,926 INFO L85 PathProgramCache]: Analyzing trace with hash 682141982, now seen corresponding path program 1 times [2024-11-08 15:08:48,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:08:48,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294716083] [2024-11-08 15:08:48,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:08:48,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:08:48,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:49,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:08:49,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:49,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:08:49,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:49,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:08:49,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:49,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:08:49,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:49,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:08:49,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:49,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:08:49,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:49,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 15:08:49,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:49,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-08 15:08:49,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:49,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 15:08:49,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:49,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-08 15:08:49,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:49,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-08 15:08:49,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:49,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 15:08:49,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:49,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-08 15:08:49,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:49,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-08 15:08:49,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:49,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-08 15:08:49,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:49,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 15:08:49,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:49,209 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-08 15:08:49,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:08:49,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294716083] [2024-11-08 15:08:49,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294716083] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:08:49,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:08:49,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-08 15:08:49,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588688622] [2024-11-08 15:08:49,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:08:49,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 15:08:49,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:08:49,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 15:08:49,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-08 15:08:49,212 INFO L87 Difference]: Start difference. First operand 394 states and 594 transitions. Second operand has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 8 states have internal predecessors, (87), 4 states have call successors, (18), 6 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-08 15:08:51,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:08:51,490 INFO L93 Difference]: Finished difference Result 873 states and 1318 transitions. [2024-11-08 15:08:51,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 15:08:51,491 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 8 states have internal predecessors, (87), 4 states have call successors, (18), 6 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) Word has length 135 [2024-11-08 15:08:51,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:08:51,494 INFO L225 Difference]: With dead ends: 873 [2024-11-08 15:08:51,494 INFO L226 Difference]: Without dead ends: 506 [2024-11-08 15:08:51,496 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-11-08 15:08:51,496 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 1229 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 3305 mSolverCounterSat, 381 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1230 SdHoareTripleChecker+Valid, 1535 SdHoareTripleChecker+Invalid, 3686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 381 IncrementalHoareTripleChecker+Valid, 3305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:08:51,496 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1230 Valid, 1535 Invalid, 3686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [381 Valid, 3305 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-08 15:08:51,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2024-11-08 15:08:51,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 394. [2024-11-08 15:08:51,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 304 states have (on average 1.5164473684210527) internal successors, (461), 310 states have internal predecessors, (461), 63 states have call successors, (63), 23 states have call predecessors, (63), 26 states have return successors, (69), 62 states have call predecessors, (69), 62 states have call successors, (69) [2024-11-08 15:08:51,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 593 transitions. [2024-11-08 15:08:51,529 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 593 transitions. Word has length 135 [2024-11-08 15:08:51,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:08:51,529 INFO L471 AbstractCegarLoop]: Abstraction has 394 states and 593 transitions. [2024-11-08 15:08:51,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 8 states have internal predecessors, (87), 4 states have call successors, (18), 6 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-08 15:08:51,529 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 593 transitions. [2024-11-08 15:08:51,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-08 15:08:51,531 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:08:51,532 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:08:51,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 15:08:51,532 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:08:51,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:08:51,533 INFO L85 PathProgramCache]: Analyzing trace with hash 750200228, now seen corresponding path program 2 times [2024-11-08 15:08:51,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:08:51,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722010057] [2024-11-08 15:08:51,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:08:51,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:08:51,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:51,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:08:51,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:51,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:08:51,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:51,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:08:51,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:51,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:08:51,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:51,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:08:51,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:51,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:08:51,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:51,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-08 15:08:51,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:51,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 15:08:51,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:51,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 15:08:51,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:51,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-08 15:08:51,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:51,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-08 15:08:51,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:51,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-08 15:08:51,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:51,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-08 15:08:51,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:51,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-08 15:08:51,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:51,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-08 15:08:51,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:51,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 15:08:51,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:51,846 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-08 15:08:51,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:08:51,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722010057] [2024-11-08 15:08:51,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722010057] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:08:51,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:08:51,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-08 15:08:51,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146826236] [2024-11-08 15:08:51,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:08:51,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 15:08:51,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:08:51,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 15:08:51,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-08 15:08:51,848 INFO L87 Difference]: Start difference. First operand 394 states and 593 transitions. Second operand has 12 states, 11 states have (on average 8.0) internal successors, (88), 8 states have internal predecessors, (88), 4 states have call successors, (18), 6 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-08 15:08:54,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:08:54,093 INFO L93 Difference]: Finished difference Result 875 states and 1324 transitions. [2024-11-08 15:08:54,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 15:08:54,094 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.0) internal successors, (88), 8 states have internal predecessors, (88), 4 states have call successors, (18), 6 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) Word has length 136 [2024-11-08 15:08:54,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:08:54,098 INFO L225 Difference]: With dead ends: 875 [2024-11-08 15:08:54,098 INFO L226 Difference]: Without dead ends: 508 [2024-11-08 15:08:54,101 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-11-08 15:08:54,103 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 1103 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 3690 mSolverCounterSat, 350 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1104 SdHoareTripleChecker+Valid, 1536 SdHoareTripleChecker+Invalid, 4040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 350 IncrementalHoareTripleChecker+Valid, 3690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-08 15:08:54,104 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1104 Valid, 1536 Invalid, 4040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [350 Valid, 3690 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-08 15:08:54,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2024-11-08 15:08:54,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 396. [2024-11-08 15:08:54,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 305 states have (on average 1.5147540983606558) internal successors, (462), 312 states have internal predecessors, (462), 63 states have call successors, (63), 23 states have call predecessors, (63), 27 states have return successors, (74), 62 states have call predecessors, (74), 62 states have call successors, (74) [2024-11-08 15:08:54,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 599 transitions. [2024-11-08 15:08:54,154 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 599 transitions. Word has length 136 [2024-11-08 15:08:54,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:08:54,155 INFO L471 AbstractCegarLoop]: Abstraction has 396 states and 599 transitions. [2024-11-08 15:08:54,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.0) internal successors, (88), 8 states have internal predecessors, (88), 4 states have call successors, (18), 6 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-08 15:08:54,155 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 599 transitions. [2024-11-08 15:08:54,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-08 15:08:54,158 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:08:54,158 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:08:54,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 15:08:54,158 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:08:54,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:08:54,159 INFO L85 PathProgramCache]: Analyzing trace with hash 651233379, now seen corresponding path program 1 times [2024-11-08 15:08:54,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:08:54,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560596352] [2024-11-08 15:08:54,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:08:54,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:08:54,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:54,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:08:54,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:54,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:08:54,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:54,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:08:54,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:54,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:08:54,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:54,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:08:54,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:54,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:08:54,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:54,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-08 15:08:54,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:54,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-08 15:08:54,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:54,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-08 15:08:54,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:54,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 15:08:54,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:54,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 15:08:54,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:54,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-08 15:08:54,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:54,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-08 15:08:54,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:54,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-08 15:08:54,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:54,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-08 15:08:54,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:54,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 15:08:54,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:54,443 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-08 15:08:54,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:08:54,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560596352] [2024-11-08 15:08:54,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560596352] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:08:54,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2120058592] [2024-11-08 15:08:54,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:08:54,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:08:54,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:08:54,449 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 15:08:54,451 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 15:08:54,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:54,747 INFO L255 TraceCheckSpWp]: Trace formula consists of 1121 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 15:08:54,750 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:08:54,799 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-08 15:08:54,800 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 15:08:54,925 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-08 15:08:54,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2120058592] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 15:08:54,926 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 15:08:54,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2024-11-08 15:08:54,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267970096] [2024-11-08 15:08:54,926 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 15:08:54,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-08 15:08:54,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:08:54,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-08 15:08:54,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-11-08 15:08:54,928 INFO L87 Difference]: Start difference. First operand 396 states and 599 transitions. Second operand has 15 states, 14 states have (on average 10.428571428571429) internal successors, (146), 11 states have internal predecessors, (146), 4 states have call successors, (37), 6 states have call predecessors, (37), 3 states have return successors, (30), 3 states have call predecessors, (30), 4 states have call successors, (30) [2024-11-08 15:08:57,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:08:57,650 INFO L93 Difference]: Finished difference Result 1225 states and 1956 transitions. [2024-11-08 15:08:57,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-08 15:08:57,651 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 10.428571428571429) internal successors, (146), 11 states have internal predecessors, (146), 4 states have call successors, (37), 6 states have call predecessors, (37), 3 states have return successors, (30), 3 states have call predecessors, (30), 4 states have call successors, (30) Word has length 137 [2024-11-08 15:08:57,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:08:57,656 INFO L225 Difference]: With dead ends: 1225 [2024-11-08 15:08:57,656 INFO L226 Difference]: Without dead ends: 860 [2024-11-08 15:08:57,658 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 301 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=164, Invalid=828, Unknown=0, NotChecked=0, Total=992 [2024-11-08 15:08:57,658 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 2134 mSDsluCounter, 1766 mSDsCounter, 0 mSdLazyCounter, 4395 mSolverCounterSat, 668 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2151 SdHoareTripleChecker+Valid, 1944 SdHoareTripleChecker+Invalid, 5063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 668 IncrementalHoareTripleChecker+Valid, 4395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-08 15:08:57,659 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2151 Valid, 1944 Invalid, 5063 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [668 Valid, 4395 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-08 15:08:57,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 860 states. [2024-11-08 15:08:57,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 860 to 724. [2024-11-08 15:08:57,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 724 states, 569 states have (on average 1.569420035149385) internal successors, (893), 576 states have internal predecessors, (893), 127 states have call successors, (127), 23 states have call predecessors, (127), 27 states have return successors, (148), 126 states have call predecessors, (148), 126 states have call successors, (148) [2024-11-08 15:08:57,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 1168 transitions. [2024-11-08 15:08:57,701 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 1168 transitions. Word has length 137 [2024-11-08 15:08:57,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:08:57,702 INFO L471 AbstractCegarLoop]: Abstraction has 724 states and 1168 transitions. [2024-11-08 15:08:57,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 10.428571428571429) internal successors, (146), 11 states have internal predecessors, (146), 4 states have call successors, (37), 6 states have call predecessors, (37), 3 states have return successors, (30), 3 states have call predecessors, (30), 4 states have call successors, (30) [2024-11-08 15:08:57,702 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 1168 transitions. [2024-11-08 15:08:57,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-08 15:08:57,706 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:08:57,706 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:08:57,725 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-08 15:08:57,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:08:57,907 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:08:57,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:08:57,908 INFO L85 PathProgramCache]: Analyzing trace with hash -2008994295, now seen corresponding path program 1 times [2024-11-08 15:08:57,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:08:57,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401025209] [2024-11-08 15:08:57,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:08:57,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:08:57,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:57,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:08:57,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:57,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:08:57,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:57,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:08:57,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:57,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:08:57,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:57,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:08:57,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:57,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:08:57,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:58,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-08 15:08:58,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:58,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-08 15:08:58,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:58,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 15:08:58,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:58,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 15:08:58,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:58,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 15:08:58,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:58,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-08 15:08:58,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:58,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-08 15:08:58,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:58,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-08 15:08:58,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:58,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-08 15:08:58,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:58,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 15:08:58,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:58,025 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-08 15:08:58,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:08:58,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401025209] [2024-11-08 15:08:58,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401025209] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:08:58,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:08:58,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:08:58,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778576882] [2024-11-08 15:08:58,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:08:58,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:08:58,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:08:58,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:08:58,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:08:58,028 INFO L87 Difference]: Start difference. First operand 724 states and 1168 transitions. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-08 15:08:59,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:08:59,236 INFO L93 Difference]: Finished difference Result 1790 states and 2955 transitions. [2024-11-08 15:08:59,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 15:08:59,237 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 140 [2024-11-08 15:08:59,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:08:59,244 INFO L225 Difference]: With dead ends: 1790 [2024-11-08 15:08:59,244 INFO L226 Difference]: Without dead ends: 1144 [2024-11-08 15:08:59,246 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-08 15:08:59,247 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 1245 mSDsluCounter, 640 mSDsCounter, 0 mSdLazyCounter, 1202 mSolverCounterSat, 414 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1260 SdHoareTripleChecker+Valid, 829 SdHoareTripleChecker+Invalid, 1616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 414 IncrementalHoareTripleChecker+Valid, 1202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:08:59,247 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1260 Valid, 829 Invalid, 1616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [414 Valid, 1202 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 15:08:59,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1144 states. [2024-11-08 15:08:59,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1144 to 1024. [2024-11-08 15:08:59,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1024 states, 805 states have (on average 1.5875776397515529) internal successors, (1278), 812 states have internal predecessors, (1278), 191 states have call successors, (191), 23 states have call predecessors, (191), 27 states have return successors, (222), 190 states have call predecessors, (222), 190 states have call successors, (222) [2024-11-08 15:08:59,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1024 states to 1024 states and 1691 transitions. [2024-11-08 15:08:59,304 INFO L78 Accepts]: Start accepts. Automaton has 1024 states and 1691 transitions. Word has length 140 [2024-11-08 15:08:59,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:08:59,304 INFO L471 AbstractCegarLoop]: Abstraction has 1024 states and 1691 transitions. [2024-11-08 15:08:59,305 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-08 15:08:59,305 INFO L276 IsEmpty]: Start isEmpty. Operand 1024 states and 1691 transitions. [2024-11-08 15:08:59,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-08 15:08:59,311 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:08:59,311 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:08:59,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 15:08:59,312 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:08:59,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:08:59,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1975814361, now seen corresponding path program 1 times [2024-11-08 15:08:59,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:08:59,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754165928] [2024-11-08 15:08:59,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:08:59,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:08:59,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:59,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:08:59,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:59,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:08:59,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:59,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:08:59,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:59,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:08:59,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:59,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:08:59,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:59,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:08:59,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:59,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 15:08:59,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:59,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-08 15:08:59,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:59,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 15:08:59,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:59,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-08 15:08:59,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:59,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-08 15:08:59,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:59,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-08 15:08:59,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:59,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-08 15:08:59,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:59,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-08 15:08:59,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:59,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-08 15:08:59,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:59,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 15:08:59,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:08:59,435 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-08 15:08:59,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:08:59,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754165928] [2024-11-08 15:08:59,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754165928] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:08:59,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:08:59,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:08:59,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14919797] [2024-11-08 15:08:59,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:08:59,437 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:08:59,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:08:59,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:08:59,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:08:59,438 INFO L87 Difference]: Start difference. First operand 1024 states and 1691 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-08 15:09:00,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:09:00,685 INFO L93 Difference]: Finished difference Result 2530 states and 4235 transitions. [2024-11-08 15:09:00,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 15:09:00,686 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 141 [2024-11-08 15:09:00,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:09:00,696 INFO L225 Difference]: With dead ends: 2530 [2024-11-08 15:09:00,696 INFO L226 Difference]: Without dead ends: 1637 [2024-11-08 15:09:00,701 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-08 15:09:00,702 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 1254 mSDsluCounter, 649 mSDsCounter, 0 mSdLazyCounter, 1179 mSolverCounterSat, 419 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1269 SdHoareTripleChecker+Valid, 838 SdHoareTripleChecker+Invalid, 1598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 419 IncrementalHoareTripleChecker+Valid, 1179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:09:00,702 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1269 Valid, 838 Invalid, 1598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [419 Valid, 1179 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-08 15:09:00,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1637 states. [2024-11-08 15:09:00,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1637 to 1517. [2024-11-08 15:09:00,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1517 states, 1203 states have (on average 1.5960099750623442) internal successors, (1920), 1210 states have internal predecessors, (1920), 286 states have call successors, (286), 23 states have call predecessors, (286), 27 states have return successors, (317), 285 states have call predecessors, (317), 285 states have call successors, (317) [2024-11-08 15:09:00,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1517 states to 1517 states and 2523 transitions. [2024-11-08 15:09:00,782 INFO L78 Accepts]: Start accepts. Automaton has 1517 states and 2523 transitions. Word has length 141 [2024-11-08 15:09:00,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:09:00,783 INFO L471 AbstractCegarLoop]: Abstraction has 1517 states and 2523 transitions. [2024-11-08 15:09:00,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-08 15:09:00,783 INFO L276 IsEmpty]: Start isEmpty. Operand 1517 states and 2523 transitions. [2024-11-08 15:09:00,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-08 15:09:00,792 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:09:00,792 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:09:00,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 15:09:00,792 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:09:00,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:09:00,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1644970309, now seen corresponding path program 1 times [2024-11-08 15:09:00,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:09:00,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677718600] [2024-11-08 15:09:00,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:09:00,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:09:00,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:00,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:09:00,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:00,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:09:00,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:00,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:09:00,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:00,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:09:00,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:00,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:09:00,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:00,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:09:00,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:00,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-08 15:09:00,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:00,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 15:09:00,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:00,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 15:09:00,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:00,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-08 15:09:00,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:00,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-08 15:09:00,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:00,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-08 15:09:00,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:00,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-08 15:09:00,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:00,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 15:09:00,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:00,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-08 15:09:00,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:00,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 15:09:00,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:00,924 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-08 15:09:00,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:09:00,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677718600] [2024-11-08 15:09:00,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677718600] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:09:00,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:09:00,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:09:00,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497503381] [2024-11-08 15:09:00,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:09:00,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:09:00,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:09:00,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:09:00,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:09:00,926 INFO L87 Difference]: Start difference. First operand 1517 states and 2523 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-08 15:09:02,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:09:02,112 INFO L93 Difference]: Finished difference Result 3632 states and 6153 transitions. [2024-11-08 15:09:02,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 15:09:02,114 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 142 [2024-11-08 15:09:02,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:09:02,130 INFO L225 Difference]: With dead ends: 3632 [2024-11-08 15:09:02,130 INFO L226 Difference]: Without dead ends: 2381 [2024-11-08 15:09:02,137 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-08 15:09:02,138 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 1249 mSDsluCounter, 627 mSDsCounter, 0 mSdLazyCounter, 1178 mSolverCounterSat, 393 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1264 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 1571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 393 IncrementalHoareTripleChecker+Valid, 1178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:09:02,138 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1264 Valid, 805 Invalid, 1571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [393 Valid, 1178 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 15:09:02,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2381 states. [2024-11-08 15:09:02,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2381 to 2261. [2024-11-08 15:09:02,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2261 states, 1824 states have (on average 1.6025219298245614) internal successors, (2923), 1831 states have internal predecessors, (2923), 409 states have call successors, (409), 23 states have call predecessors, (409), 27 states have return successors, (456), 408 states have call predecessors, (456), 408 states have call successors, (456) [2024-11-08 15:09:02,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2261 states to 2261 states and 3788 transitions. [2024-11-08 15:09:02,264 INFO L78 Accepts]: Start accepts. Automaton has 2261 states and 3788 transitions. Word has length 142 [2024-11-08 15:09:02,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:09:02,265 INFO L471 AbstractCegarLoop]: Abstraction has 2261 states and 3788 transitions. [2024-11-08 15:09:02,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-08 15:09:02,265 INFO L276 IsEmpty]: Start isEmpty. Operand 2261 states and 3788 transitions. [2024-11-08 15:09:02,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-08 15:09:02,288 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:09:02,288 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:09:02,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 15:09:02,289 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:09:02,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:09:02,289 INFO L85 PathProgramCache]: Analyzing trace with hash 782969318, now seen corresponding path program 1 times [2024-11-08 15:09:02,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:09:02,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271474812] [2024-11-08 15:09:02,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:09:02,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:09:02,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:02,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:09:02,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:02,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:09:02,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:02,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:09:02,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:02,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:09:02,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:02,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:09:02,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:02,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:09:02,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:02,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-08 15:09:02,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:02,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-08 15:09:02,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:02,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-08 15:09:02,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:02,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 15:09:02,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:02,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 15:09:02,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:02,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-08 15:09:02,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:02,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-08 15:09:02,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:02,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-08 15:09:02,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:02,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-08 15:09:02,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:02,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 15:09:02,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:02,457 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-08 15:09:02,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:09:02,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271474812] [2024-11-08 15:09:02,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271474812] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:09:02,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:09:02,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:09:02,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268845443] [2024-11-08 15:09:02,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:09:02,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:09:02,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:09:02,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:09:02,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:09:02,460 INFO L87 Difference]: Start difference. First operand 2261 states and 3788 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-08 15:09:03,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:09:03,582 INFO L93 Difference]: Finished difference Result 5341 states and 9133 transitions. [2024-11-08 15:09:03,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 15:09:03,583 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 143 [2024-11-08 15:09:03,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:09:03,603 INFO L225 Difference]: With dead ends: 5341 [2024-11-08 15:09:03,603 INFO L226 Difference]: Without dead ends: 3565 [2024-11-08 15:09:03,612 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-08 15:09:03,612 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 1328 mSDsluCounter, 627 mSDsCounter, 0 mSdLazyCounter, 1104 mSolverCounterSat, 428 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1343 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 1532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 428 IncrementalHoareTripleChecker+Valid, 1104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 15:09:03,613 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1343 Valid, 805 Invalid, 1532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [428 Valid, 1104 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 15:09:03,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3565 states. [2024-11-08 15:09:03,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3565 to 3445. [2024-11-08 15:09:03,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3445 states, 2829 states have (on average 1.6065747613997878) internal successors, (4545), 2836 states have internal predecessors, (4545), 588 states have call successors, (588), 23 states have call predecessors, (588), 27 states have return successors, (661), 587 states have call predecessors, (661), 587 states have call successors, (661) [2024-11-08 15:09:03,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3445 states to 3445 states and 5794 transitions. [2024-11-08 15:09:03,776 INFO L78 Accepts]: Start accepts. Automaton has 3445 states and 5794 transitions. Word has length 143 [2024-11-08 15:09:03,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:09:03,777 INFO L471 AbstractCegarLoop]: Abstraction has 3445 states and 5794 transitions. [2024-11-08 15:09:03,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-08 15:09:03,777 INFO L276 IsEmpty]: Start isEmpty. Operand 3445 states and 5794 transitions. [2024-11-08 15:09:03,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-08 15:09:03,792 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:09:03,792 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:09:03,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 15:09:03,793 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:09:03,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:09:03,793 INFO L85 PathProgramCache]: Analyzing trace with hash -984143745, now seen corresponding path program 1 times [2024-11-08 15:09:03,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:09:03,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835316476] [2024-11-08 15:09:03,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:09:03,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:09:03,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:03,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:09:03,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:03,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:09:03,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:03,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:09:03,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:03,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:09:03,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:03,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:09:03,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:03,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:09:03,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:03,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 15:09:03,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:03,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 15:09:03,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:03,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-08 15:09:03,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:03,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 15:09:03,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:03,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-08 15:09:03,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:03,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-08 15:09:03,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:03,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-08 15:09:03,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:03,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-08 15:09:03,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:03,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-08 15:09:03,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:03,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 15:09:03,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:03,955 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-08 15:09:03,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:09:03,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835316476] [2024-11-08 15:09:03,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835316476] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:09:03,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:09:03,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:09:03,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032288006] [2024-11-08 15:09:03,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:09:03,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:09:03,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:09:03,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:09:03,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:09:03,957 INFO L87 Difference]: Start difference. First operand 3445 states and 5794 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-08 15:09:05,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:09:05,232 INFO L93 Difference]: Finished difference Result 8414 states and 14449 transitions. [2024-11-08 15:09:05,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 15:09:05,233 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 144 [2024-11-08 15:09:05,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:09:05,265 INFO L225 Difference]: With dead ends: 8414 [2024-11-08 15:09:05,265 INFO L226 Difference]: Without dead ends: 5706 [2024-11-08 15:09:05,278 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-08 15:09:05,279 INFO L432 NwaCegarLoop]: 200 mSDtfsCounter, 1218 mSDsluCounter, 672 mSDsCounter, 0 mSdLazyCounter, 1229 mSolverCounterSat, 398 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1233 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 1627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 398 IncrementalHoareTripleChecker+Valid, 1229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:09:05,279 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1233 Valid, 872 Invalid, 1627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [398 Valid, 1229 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 15:09:05,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5706 states. [2024-11-08 15:09:05,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5706 to 5586. [2024-11-08 15:09:05,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5586 states, 4594 states have (on average 1.6001306051371353) internal successors, (7351), 4601 states have internal predecessors, (7351), 964 states have call successors, (964), 23 states have call predecessors, (964), 27 states have return successors, (1081), 963 states have call predecessors, (1081), 963 states have call successors, (1081) [2024-11-08 15:09:05,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5586 states to 5586 states and 9396 transitions. [2024-11-08 15:09:05,567 INFO L78 Accepts]: Start accepts. Automaton has 5586 states and 9396 transitions. Word has length 144 [2024-11-08 15:09:05,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:09:05,568 INFO L471 AbstractCegarLoop]: Abstraction has 5586 states and 9396 transitions. [2024-11-08 15:09:05,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-08 15:09:05,568 INFO L276 IsEmpty]: Start isEmpty. Operand 5586 states and 9396 transitions. [2024-11-08 15:09:05,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-08 15:09:05,588 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:09:05,588 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:09:05,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 15:09:05,589 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:09:05,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:09:05,589 INFO L85 PathProgramCache]: Analyzing trace with hash -59712478, now seen corresponding path program 1 times [2024-11-08 15:09:05,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:09:05,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922200092] [2024-11-08 15:09:05,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:09:05,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:09:05,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:05,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:09:05,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:05,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:09:05,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:05,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:09:05,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:05,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:09:05,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:05,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:09:05,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:05,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:09:05,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:05,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-08 15:09:05,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:05,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 15:09:05,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:05,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 15:09:05,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:05,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-08 15:09:05,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:05,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-08 15:09:05,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:05,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-08 15:09:05,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:05,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-08 15:09:05,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:05,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-08 15:09:05,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:05,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-08 15:09:05,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:05,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 15:09:05,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:05,702 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-08 15:09:05,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:09:05,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922200092] [2024-11-08 15:09:05,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922200092] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:09:05,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:09:05,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:09:05,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763666201] [2024-11-08 15:09:05,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:09:05,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:09:05,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:09:05,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:09:05,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:09:05,706 INFO L87 Difference]: Start difference. First operand 5586 states and 9396 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-08 15:09:06,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:09:06,961 INFO L93 Difference]: Finished difference Result 13836 states and 23750 transitions. [2024-11-08 15:09:06,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 15:09:06,962 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 145 [2024-11-08 15:09:06,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:09:07,016 INFO L225 Difference]: With dead ends: 13836 [2024-11-08 15:09:07,016 INFO L226 Difference]: Without dead ends: 9389 [2024-11-08 15:09:07,036 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-08 15:09:07,037 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 1294 mSDsluCounter, 628 mSDsCounter, 0 mSdLazyCounter, 1120 mSolverCounterSat, 433 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1309 SdHoareTripleChecker+Valid, 806 SdHoareTripleChecker+Invalid, 1553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 433 IncrementalHoareTripleChecker+Valid, 1120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:09:07,037 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1309 Valid, 806 Invalid, 1553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [433 Valid, 1120 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 15:09:07,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9389 states. [2024-11-08 15:09:07,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9389 to 9269. [2024-11-08 15:09:07,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9269 states, 7671 states have (on average 1.5979663668361361) internal successors, (12258), 7678 states have internal predecessors, (12258), 1570 states have call successors, (1570), 23 states have call predecessors, (1570), 27 states have return successors, (1765), 1569 states have call predecessors, (1765), 1569 states have call successors, (1765) [2024-11-08 15:09:07,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9269 states to 9269 states and 15593 transitions. [2024-11-08 15:09:07,506 INFO L78 Accepts]: Start accepts. Automaton has 9269 states and 15593 transitions. Word has length 145 [2024-11-08 15:09:07,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:09:07,507 INFO L471 AbstractCegarLoop]: Abstraction has 9269 states and 15593 transitions. [2024-11-08 15:09:07,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-08 15:09:07,508 INFO L276 IsEmpty]: Start isEmpty. Operand 9269 states and 15593 transitions. [2024-11-08 15:09:07,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-08 15:09:07,539 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:09:07,539 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:09:07,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 15:09:07,539 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:09:07,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:09:07,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1982181443, now seen corresponding path program 1 times [2024-11-08 15:09:07,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:09:07,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531054083] [2024-11-08 15:09:07,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:09:07,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:09:07,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:07,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:09:07,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:07,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:09:07,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:07,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:09:07,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:07,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:09:07,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:07,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:09:07,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:07,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:09:07,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:07,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-08 15:09:07,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:07,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-08 15:09:07,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:07,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 15:09:07,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:07,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 15:09:07,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:07,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 15:09:07,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:07,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-08 15:09:07,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:07,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-08 15:09:07,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:07,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-08 15:09:07,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:07,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-08 15:09:07,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:07,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 15:09:07,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:07,667 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-08 15:09:07,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:09:07,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531054083] [2024-11-08 15:09:07,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531054083] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:09:07,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:09:07,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:09:07,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115447094] [2024-11-08 15:09:07,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:09:07,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:09:07,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:09:07,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:09:07,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:09:07,669 INFO L87 Difference]: Start difference. First operand 9269 states and 15593 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-08 15:09:09,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:09:09,208 INFO L93 Difference]: Finished difference Result 24020 states and 41191 transitions. [2024-11-08 15:09:09,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 15:09:09,209 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 146 [2024-11-08 15:09:09,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:09:09,281 INFO L225 Difference]: With dead ends: 24020 [2024-11-08 15:09:09,282 INFO L226 Difference]: Without dead ends: 16342 [2024-11-08 15:09:09,314 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-08 15:09:09,315 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 1236 mSDsluCounter, 646 mSDsCounter, 0 mSdLazyCounter, 1203 mSolverCounterSat, 425 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1251 SdHoareTripleChecker+Valid, 835 SdHoareTripleChecker+Invalid, 1628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 425 IncrementalHoareTripleChecker+Valid, 1203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:09:09,315 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1251 Valid, 835 Invalid, 1628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [425 Valid, 1203 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-08 15:09:09,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16342 states. [2024-11-08 15:09:09,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16342 to 16222. [2024-11-08 15:09:09,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16222 states, 13421 states have (on average 1.5891513300052158) internal successors, (21328), 13428 states have internal predecessors, (21328), 2773 states have call successors, (2773), 23 states have call predecessors, (2773), 27 states have return successors, (3112), 2772 states have call predecessors, (3112), 2772 states have call successors, (3112) [2024-11-08 15:09:10,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16222 states to 16222 states and 27213 transitions. [2024-11-08 15:09:10,041 INFO L78 Accepts]: Start accepts. Automaton has 16222 states and 27213 transitions. Word has length 146 [2024-11-08 15:09:10,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:09:10,042 INFO L471 AbstractCegarLoop]: Abstraction has 16222 states and 27213 transitions. [2024-11-08 15:09:10,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-08 15:09:10,042 INFO L276 IsEmpty]: Start isEmpty. Operand 16222 states and 27213 transitions. [2024-11-08 15:09:10,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-08 15:09:10,085 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:09:10,085 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:09:10,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 15:09:10,085 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:09:10,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:09:10,086 INFO L85 PathProgramCache]: Analyzing trace with hash 884344641, now seen corresponding path program 1 times [2024-11-08 15:09:10,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:09:10,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453288783] [2024-11-08 15:09:10,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:09:10,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:09:10,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:10,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:09:10,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:10,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:09:10,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:10,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:09:10,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:10,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:09:10,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:10,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:09:10,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:10,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:09:10,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:10,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 15:09:10,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:10,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-08 15:09:10,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:10,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 15:09:10,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:10,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-08 15:09:10,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:10,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-08 15:09:10,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:10,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-08 15:09:10,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:10,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-08 15:09:10,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:10,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-08 15:09:10,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:10,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-08 15:09:10,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:10,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 15:09:10,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:10,198 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-08 15:09:10,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:09:10,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453288783] [2024-11-08 15:09:10,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453288783] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:09:10,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:09:10,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:09:10,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159830040] [2024-11-08 15:09:10,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:09:10,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:09:10,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:09:10,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:09:10,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:09:10,200 INFO L87 Difference]: Start difference. First operand 16222 states and 27213 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-08 15:09:11,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:09:11,811 INFO L93 Difference]: Finished difference Result 42986 states and 73588 transitions. [2024-11-08 15:09:11,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 15:09:11,811 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 147 [2024-11-08 15:09:11,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:09:11,925 INFO L225 Difference]: With dead ends: 42986 [2024-11-08 15:09:11,925 INFO L226 Difference]: Without dead ends: 28997 [2024-11-08 15:09:11,964 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-08 15:09:11,965 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 1248 mSDsluCounter, 628 mSDsCounter, 0 mSdLazyCounter, 1170 mSolverCounterSat, 409 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1263 SdHoareTripleChecker+Valid, 806 SdHoareTripleChecker+Invalid, 1579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 409 IncrementalHoareTripleChecker+Valid, 1170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 15:09:11,965 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1263 Valid, 806 Invalid, 1579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [409 Valid, 1170 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 15:09:11,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28997 states. [2024-11-08 15:09:13,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28997 to 28877. [2024-11-08 15:09:13,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28877 states, 24037 states have (on average 1.5848483587802138) internal successors, (38095), 24044 states have internal predecessors, (38095), 4812 states have call successors, (4812), 23 states have call predecessors, (4812), 27 states have return successors, (5425), 4811 states have call predecessors, (5425), 4811 states have call successors, (5425) [2024-11-08 15:09:13,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28877 states to 28877 states and 48332 transitions. [2024-11-08 15:09:13,431 INFO L78 Accepts]: Start accepts. Automaton has 28877 states and 48332 transitions. Word has length 147 [2024-11-08 15:09:13,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:09:13,432 INFO L471 AbstractCegarLoop]: Abstraction has 28877 states and 48332 transitions. [2024-11-08 15:09:13,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-08 15:09:13,433 INFO L276 IsEmpty]: Start isEmpty. Operand 28877 states and 48332 transitions. [2024-11-08 15:09:13,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-08 15:09:13,475 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:09:13,475 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:09:13,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 15:09:13,475 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:09:13,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:09:13,476 INFO L85 PathProgramCache]: Analyzing trace with hash -448195941, now seen corresponding path program 1 times [2024-11-08 15:09:13,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:09:13,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186346452] [2024-11-08 15:09:13,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:09:13,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:09:13,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:13,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:09:13,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:13,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:09:13,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:13,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:09:13,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:13,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:09:13,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:13,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:09:13,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:13,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:09:13,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:13,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-08 15:09:13,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:13,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 15:09:13,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:13,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 15:09:13,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:13,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-08 15:09:13,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:13,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-08 15:09:13,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:13,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-08 15:09:13,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:13,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 15:09:13,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:13,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-08 15:09:13,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:13,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-08 15:09:13,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:13,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 15:09:13,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:13,579 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-08 15:09:13,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:09:13,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186346452] [2024-11-08 15:09:13,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186346452] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:09:13,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:09:13,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:09:13,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119865216] [2024-11-08 15:09:13,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:09:13,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:09:13,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:09:13,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:09:13,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:09:13,582 INFO L87 Difference]: Start difference. First operand 28877 states and 48332 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-08 15:09:15,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:09:15,937 INFO L93 Difference]: Finished difference Result 78748 states and 133952 transitions. [2024-11-08 15:09:15,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 15:09:15,938 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 148 [2024-11-08 15:09:15,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:09:16,290 INFO L225 Difference]: With dead ends: 78748 [2024-11-08 15:09:16,290 INFO L226 Difference]: Without dead ends: 52876 [2024-11-08 15:09:16,369 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-08 15:09:16,370 INFO L432 NwaCegarLoop]: 180 mSDtfsCounter, 1237 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 1171 mSolverCounterSat, 426 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1252 SdHoareTripleChecker+Valid, 812 SdHoareTripleChecker+Invalid, 1597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 426 IncrementalHoareTripleChecker+Valid, 1171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-08 15:09:16,370 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1252 Valid, 812 Invalid, 1597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [426 Valid, 1171 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-08 15:09:16,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52876 states. [2024-11-08 15:09:18,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52876 to 52756. [2024-11-08 15:09:18,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52756 states, 44201 states have (on average 1.5791045451460375) internal successors, (69798), 44208 states have internal predecessors, (69798), 8527 states have call successors, (8527), 23 states have call predecessors, (8527), 27 states have return successors, (9672), 8526 states have call predecessors, (9672), 8526 states have call successors, (9672) [2024-11-08 15:09:18,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52756 states to 52756 states and 87997 transitions. [2024-11-08 15:09:18,809 INFO L78 Accepts]: Start accepts. Automaton has 52756 states and 87997 transitions. Word has length 148 [2024-11-08 15:09:18,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:09:18,810 INFO L471 AbstractCegarLoop]: Abstraction has 52756 states and 87997 transitions. [2024-11-08 15:09:18,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-08 15:09:18,810 INFO L276 IsEmpty]: Start isEmpty. Operand 52756 states and 87997 transitions. [2024-11-08 15:09:18,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-08 15:09:18,860 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:09:18,860 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:09:18,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-08 15:09:18,860 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:09:18,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:09:18,861 INFO L85 PathProgramCache]: Analyzing trace with hash -642537439, now seen corresponding path program 1 times [2024-11-08 15:09:18,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:09:18,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382710294] [2024-11-08 15:09:18,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:09:18,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:09:19,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:19,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:09:19,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:19,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:09:19,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:19,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:09:19,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:19,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:09:19,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:19,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:09:19,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:19,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:09:19,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:19,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 15:09:19,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:19,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 15:09:19,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:19,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-08 15:09:19,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:19,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 15:09:19,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:19,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 15:09:19,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:19,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-08 15:09:19,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:19,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-08 15:09:19,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:19,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-08 15:09:19,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:19,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-08 15:09:19,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:19,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 15:09:19,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:19,267 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-08 15:09:19,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:09:19,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382710294] [2024-11-08 15:09:19,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382710294] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:09:19,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:09:19,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:09:19,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640667631] [2024-11-08 15:09:19,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:09:19,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:09:19,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:09:19,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:09:19,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:09:19,269 INFO L87 Difference]: Start difference. First operand 52756 states and 87997 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-08 15:09:22,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:09:22,418 INFO L93 Difference]: Finished difference Result 98519 states and 167882 transitions. [2024-11-08 15:09:22,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 15:09:22,419 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 149 [2024-11-08 15:09:22,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:09:23,058 INFO L225 Difference]: With dead ends: 98519 [2024-11-08 15:09:23,059 INFO L226 Difference]: Without dead ends: 98335 [2024-11-08 15:09:23,098 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-08 15:09:23,100 INFO L432 NwaCegarLoop]: 190 mSDtfsCounter, 1266 mSDsluCounter, 656 mSDsCounter, 0 mSdLazyCounter, 1179 mSolverCounterSat, 407 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1280 SdHoareTripleChecker+Valid, 846 SdHoareTripleChecker+Invalid, 1586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 407 IncrementalHoareTripleChecker+Valid, 1179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:09:23,100 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1280 Valid, 846 Invalid, 1586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [407 Valid, 1179 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 15:09:23,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98335 states. [2024-11-08 15:09:26,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98335 to 98215. [2024-11-08 15:09:26,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98215 states, 82861 states have (on average 1.5718492415008267) internal successors, (130245), 82868 states have internal predecessors, (130245), 15326 states have call successors, (15326), 23 states have call predecessors, (15326), 27 states have return successors, (17517), 15325 states have call predecessors, (17517), 15325 states have call successors, (17517) [2024-11-08 15:09:26,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98215 states to 98215 states and 163088 transitions. [2024-11-08 15:09:26,641 INFO L78 Accepts]: Start accepts. Automaton has 98215 states and 163088 transitions. Word has length 149 [2024-11-08 15:09:26,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:09:26,641 INFO L471 AbstractCegarLoop]: Abstraction has 98215 states and 163088 transitions. [2024-11-08 15:09:26,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-08 15:09:26,642 INFO L276 IsEmpty]: Start isEmpty. Operand 98215 states and 163088 transitions. [2024-11-08 15:09:26,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-08 15:09:26,718 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:09:26,718 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:09:26,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-08 15:09:26,718 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:09:26,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:09:26,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1845181436, now seen corresponding path program 1 times [2024-11-08 15:09:26,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:09:26,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580133775] [2024-11-08 15:09:26,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:09:26,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:09:26,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:27,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:09:27,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:27,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:09:27,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:27,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:09:27,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:27,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:09:27,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:27,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:09:27,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:27,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:09:27,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:27,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 15:09:27,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:27,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 15:09:27,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:27,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-08 15:09:27,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:27,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-08 15:09:27,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:27,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-08 15:09:27,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:27,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-08 15:09:27,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:27,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-08 15:09:27,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:27,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-08 15:09:27,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:27,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-08 15:09:27,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:27,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 15:09:27,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:27,667 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-08 15:09:27,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:09:27,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580133775] [2024-11-08 15:09:27,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580133775] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:09:27,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [36912492] [2024-11-08 15:09:27,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:09:27,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:09:27,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:09:27,670 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 15:09:27,671 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-08 15:09:28,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:09:28,027 INFO L255 TraceCheckSpWp]: Trace formula consists of 1159 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-08 15:09:28,033 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:09:28,266 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-08 15:09:28,266 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 15:09:28,636 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-08 15:09:28,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [36912492] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 15:09:28,636 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 15:09:28,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 9, 9] total 32 [2024-11-08 15:09:28,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475219287] [2024-11-08 15:09:28,637 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 15:09:28,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-08 15:09:28,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:09:28,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-08 15:09:28,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=914, Unknown=0, NotChecked=0, Total=992 [2024-11-08 15:09:28,640 INFO L87 Difference]: Start difference. First operand 98215 states and 163088 transitions. Second operand has 32 states, 30 states have (on average 8.266666666666667) internal successors, (248), 24 states have internal predecessors, (248), 9 states have call successors, (48), 12 states have call predecessors, (48), 12 states have return successors, (42), 11 states have call predecessors, (42), 9 states have call successors, (42)