./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec3_product28.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/email_spec3_product28.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6f40464de6444b4c527a3fd043e201dc912ddaed5b163e61d0d1df63c7a25d4d --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 14:10:34,212 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 14:10:34,287 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 14:10:34,293 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 14:10:34,294 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 14:10:34,340 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 14:10:34,342 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 14:10:34,342 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 14:10:34,343 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 14:10:34,344 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 14:10:34,344 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 14:10:34,344 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 14:10:34,345 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 14:10:34,348 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 14:10:34,348 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 14:10:34,348 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 14:10:34,348 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 14:10:34,349 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 14:10:34,349 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 14:10:34,349 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 14:10:34,350 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 14:10:34,354 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 14:10:34,354 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 14:10:34,355 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 14:10:34,355 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 14:10:34,355 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 14:10:34,355 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 14:10:34,355 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 14:10:34,356 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 14:10:34,356 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 14:10:34,356 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 14:10:34,356 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 14:10:34,357 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:10:34,357 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 14:10:34,357 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 14:10:34,358 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 14:10:34,358 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 14:10:34,359 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 14:10:34,359 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 14:10:34,360 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 14:10:34,360 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 14:10:34,361 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 14:10:34,361 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6f40464de6444b4c527a3fd043e201dc912ddaed5b163e61d0d1df63c7a25d4d [2024-11-18 14:10:34,617 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 14:10:34,640 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 14:10:34,643 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 14:10:34,644 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 14:10:34,644 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 14:10:34,645 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec3_product28.cil.c [2024-11-18 14:10:36,142 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 14:10:36,452 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 14:10:36,452 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec3_product28.cil.c [2024-11-18 14:10:36,475 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76682e956/6bea05858bb54d4e89c891e7f8dae465/FLAGe02948ef3 [2024-11-18 14:10:36,487 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76682e956/6bea05858bb54d4e89c891e7f8dae465 [2024-11-18 14:10:36,489 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 14:10:36,490 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 14:10:36,491 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 14:10:36,492 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 14:10:36,496 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 14:10:36,496 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:10:36" (1/1) ... [2024-11-18 14:10:36,497 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2564bce8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:10:36, skipping insertion in model container [2024-11-18 14:10:36,497 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:10:36" (1/1) ... [2024-11-18 14:10:36,552 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 14:10:36,813 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec3_product28.cil.c[6522,6535] [2024-11-18 14:10:37,179 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:10:37,203 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 14:10:37,213 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [48] [2024-11-18 14:10:37,215 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignVerify_spec.i","") [208] [2024-11-18 14:10:37,215 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [270] [2024-11-18 14:10:37,215 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [279] [2024-11-18 14:10:37,215 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [645] [2024-11-18 14:10:37,215 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1724] [2024-11-18 14:10:37,216 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2007] [2024-11-18 14:10:37,216 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2409] [2024-11-18 14:10:37,216 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2622] [2024-11-18 14:10:37,216 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2639] [2024-11-18 14:10:37,217 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2674] [2024-11-18 14:10:37,235 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec3_product28.cil.c[6522,6535] [2024-11-18 14:10:37,328 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:10:37,362 INFO L204 MainTranslator]: Completed translation [2024-11-18 14:10:37,363 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:10:37 WrapperNode [2024-11-18 14:10:37,363 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 14:10:37,364 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 14:10:37,364 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 14:10:37,364 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 14:10:37,370 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:10:37" (1/1) ... [2024-11-18 14:10:37,395 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:10:37" (1/1) ... [2024-11-18 14:10:37,448 INFO L138 Inliner]: procedures = 129, calls = 203, calls flagged for inlining = 55, calls inlined = 45, statements flattened = 888 [2024-11-18 14:10:37,449 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 14:10:37,453 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 14:10:37,453 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 14:10:37,454 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 14:10:37,470 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:10:37" (1/1) ... [2024-11-18 14:10:37,471 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:10:37" (1/1) ... [2024-11-18 14:10:37,481 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:10:37" (1/1) ... [2024-11-18 14:10:37,512 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4]. 29 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0]. [2024-11-18 14:10:37,513 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:10:37" (1/1) ... [2024-11-18 14:10:37,513 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:10:37" (1/1) ... [2024-11-18 14:10:37,531 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:10:37" (1/1) ... [2024-11-18 14:10:37,546 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:10:37" (1/1) ... [2024-11-18 14:10:37,557 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:10:37" (1/1) ... [2024-11-18 14:10:37,566 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:10:37" (1/1) ... [2024-11-18 14:10:37,574 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 14:10:37,576 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 14:10:37,576 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 14:10:37,576 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 14:10:37,577 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:10:37" (1/1) ... [2024-11-18 14:10:37,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:10:37,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:10:37,630 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 14:10:37,633 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 14:10:37,685 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-11-18 14:10:37,685 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-11-18 14:10:37,685 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-11-18 14:10:37,686 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-11-18 14:10:37,686 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-11-18 14:10:37,686 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-11-18 14:10:37,686 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-18 14:10:37,687 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-18 14:10:37,687 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-18 14:10:37,687 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-18 14:10:37,688 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-18 14:10:37,688 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-18 14:10:37,688 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-18 14:10:37,688 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-18 14:10:37,689 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-11-18 14:10:37,689 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-11-18 14:10:37,689 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-18 14:10:37,689 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-18 14:10:37,690 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-18 14:10:37,690 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-18 14:10:37,690 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-18 14:10:37,691 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-18 14:10:37,691 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-18 14:10:37,691 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-18 14:10:37,692 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 14:10:37,692 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-18 14:10:37,692 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-18 14:10:37,692 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-11-18 14:10:37,692 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-11-18 14:10:37,692 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-18 14:10:37,692 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-18 14:10:37,692 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-11-18 14:10:37,693 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-11-18 14:10:37,693 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-18 14:10:37,693 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-18 14:10:37,693 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-18 14:10:37,693 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-18 14:10:37,693 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-11-18 14:10:37,693 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-11-18 14:10:37,693 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-18 14:10:37,693 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-18 14:10:37,694 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-11-18 14:10:37,694 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-11-18 14:10:37,694 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-18 14:10:37,694 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-18 14:10:37,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 14:10:37,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-18 14:10:37,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-18 14:10:37,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-18 14:10:37,695 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-18 14:10:37,695 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-18 14:10:37,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 14:10:37,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 14:10:37,945 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 14:10:37,951 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 14:10:38,777 INFO L? ?]: Removed 405 outVars from TransFormulas that were not future-live. [2024-11-18 14:10:38,777 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 14:10:38,802 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 14:10:38,805 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 14:10:38,805 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:10:38 BoogieIcfgContainer [2024-11-18 14:10:38,805 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 14:10:38,807 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 14:10:38,808 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 14:10:38,811 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 14:10:38,811 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:10:36" (1/3) ... [2024-11-18 14:10:38,812 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22a9d2b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:10:38, skipping insertion in model container [2024-11-18 14:10:38,812 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:10:37" (2/3) ... [2024-11-18 14:10:38,813 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22a9d2b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:10:38, skipping insertion in model container [2024-11-18 14:10:38,813 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:10:38" (3/3) ... [2024-11-18 14:10:38,814 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec3_product28.cil.c [2024-11-18 14:10:38,829 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 14:10:38,830 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 14:10:38,904 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 14:10:38,911 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;@2274d283, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 14:10:38,912 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 14:10:38,920 INFO L276 IsEmpty]: Start isEmpty. Operand has 338 states, 258 states have (on average 1.5155038759689923) internal successors, (391), 264 states have internal predecessors, (391), 55 states have call successors, (55), 23 states have call predecessors, (55), 23 states have return successors, (55), 54 states have call predecessors, (55), 55 states have call successors, (55) [2024-11-18 14:10:38,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-18 14:10:38,940 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:10:38,941 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:10:38,942 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:10:38,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:10:38,948 INFO L85 PathProgramCache]: Analyzing trace with hash -2126435666, now seen corresponding path program 1 times [2024-11-18 14:10:38,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:10:38,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960295301] [2024-11-18 14:10:38,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:10:38,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:10:39,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:10:39,680 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-18 14:10:39,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:10:39,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960295301] [2024-11-18 14:10:39,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960295301] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:10:39,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1366891861] [2024-11-18 14:10:39,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:10:39,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:10:39,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:10:39,685 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:10:39,686 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 14:10:40,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:10:40,075 INFO L255 TraceCheckSpWp]: Trace formula consists of 1114 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-18 14:10:40,087 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:10:40,115 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-18 14:10:40,116 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:10:40,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1366891861] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:10:40,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:10:40,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 5 [2024-11-18 14:10:40,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903282191] [2024-11-18 14:10:40,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:10:40,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 14:10:40,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:10:40,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 14:10:40,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:10:40,150 INFO L87 Difference]: Start difference. First operand has 338 states, 258 states have (on average 1.5155038759689923) internal successors, (391), 264 states have internal predecessors, (391), 55 states have call successors, (55), 23 states have call predecessors, (55), 23 states have return successors, (55), 54 states have call predecessors, (55), 55 states have call successors, (55) Second operand has 2 states, 2 states have (on average 33.5) internal successors, (67), 2 states have internal predecessors, (67), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-18 14:10:40,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:10:40,201 INFO L93 Difference]: Finished difference Result 526 states and 764 transitions. [2024-11-18 14:10:40,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 14:10:40,204 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 33.5) internal successors, (67), 2 states have internal predecessors, (67), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 127 [2024-11-18 14:10:40,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:10:40,216 INFO L225 Difference]: With dead ends: 526 [2024-11-18 14:10:40,217 INFO L226 Difference]: Without dead ends: 330 [2024-11-18 14:10:40,222 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:10:40,225 INFO L432 NwaCegarLoop]: 495 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, 495 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:10:40,225 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:10:40,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2024-11-18 14:10:40,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 330. [2024-11-18 14:10:40,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 252 states have (on average 1.507936507936508) internal successors, (380), 256 states have internal predecessors, (380), 55 states have call successors, (55), 23 states have call predecessors, (55), 22 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-18 14:10:40,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 487 transitions. [2024-11-18 14:10:40,290 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 487 transitions. Word has length 127 [2024-11-18 14:10:40,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:10:40,295 INFO L471 AbstractCegarLoop]: Abstraction has 330 states and 487 transitions. [2024-11-18 14:10:40,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 33.5) internal successors, (67), 2 states have internal predecessors, (67), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-18 14:10:40,296 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 487 transitions. [2024-11-18 14:10:40,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-18 14:10:40,302 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:10:40,302 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:10:40,318 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-18 14:10:40,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-18 14:10:40,507 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:10:40,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:10:40,508 INFO L85 PathProgramCache]: Analyzing trace with hash -2060039681, now seen corresponding path program 1 times [2024-11-18 14:10:40,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:10:40,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129653487] [2024-11-18 14:10:40,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:10:40,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:10:40,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:10:40,770 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-18 14:10:40,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:10:40,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129653487] [2024-11-18 14:10:40,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129653487] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:10:40,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [972653675] [2024-11-18 14:10:40,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:10:40,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:10:40,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:10:40,779 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:10:40,780 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-18 14:10:41,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:10:41,151 INFO L255 TraceCheckSpWp]: Trace formula consists of 1115 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-18 14:10:41,164 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:10:41,197 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-18 14:10:41,198 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:10:41,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [972653675] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:10:41,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:10:41,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-18 14:10:41,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419113090] [2024-11-18 14:10:41,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:10:41,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:10:41,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:10:41,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:10:41,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:10:41,202 INFO L87 Difference]: Start difference. First operand 330 states and 487 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-18 14:10:41,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:10:41,265 INFO L93 Difference]: Finished difference Result 515 states and 741 transitions. [2024-11-18 14:10:41,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:10:41,266 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 128 [2024-11-18 14:10:41,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:10:41,271 INFO L225 Difference]: With dead ends: 515 [2024-11-18 14:10:41,271 INFO L226 Difference]: Without dead ends: 333 [2024-11-18 14:10:41,273 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:10:41,274 INFO L432 NwaCegarLoop]: 485 mSDtfsCounter, 1 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:10:41,275 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 968 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:10:41,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2024-11-18 14:10:41,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 332. [2024-11-18 14:10:41,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 254 states have (on average 1.5039370078740157) internal successors, (382), 258 states have internal predecessors, (382), 55 states have call successors, (55), 23 states have call predecessors, (55), 22 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-18 14:10:41,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 489 transitions. [2024-11-18 14:10:41,310 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 489 transitions. Word has length 128 [2024-11-18 14:10:41,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:10:41,311 INFO L471 AbstractCegarLoop]: Abstraction has 332 states and 489 transitions. [2024-11-18 14:10:41,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-18 14:10:41,312 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 489 transitions. [2024-11-18 14:10:41,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-18 14:10:41,317 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:10:41,317 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:10:41,334 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-18 14:10:41,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-18 14:10:41,519 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:10:41,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:10:41,519 INFO L85 PathProgramCache]: Analyzing trace with hash 803166024, now seen corresponding path program 1 times [2024-11-18 14:10:41,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:10:41,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422415701] [2024-11-18 14:10:41,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:10:41,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:10:41,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:10:41,782 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-18 14:10:41,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:10:41,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422415701] [2024-11-18 14:10:41,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422415701] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:10:41,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [813838049] [2024-11-18 14:10:41,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:10:41,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:10:41,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:10:41,790 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:10:41,793 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-18 14:10:42,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:10:42,136 INFO L255 TraceCheckSpWp]: Trace formula consists of 1127 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-18 14:10:42,143 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:10:42,168 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-18 14:10:42,170 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:10:42,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [813838049] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:10:42,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:10:42,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-18 14:10:42,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492450551] [2024-11-18 14:10:42,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:10:42,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:10:42,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:10:42,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:10:42,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:10:42,174 INFO L87 Difference]: Start difference. First operand 332 states and 489 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-18 14:10:42,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:10:42,208 INFO L93 Difference]: Finished difference Result 689 states and 1029 transitions. [2024-11-18 14:10:42,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:10:42,209 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 134 [2024-11-18 14:10:42,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:10:42,215 INFO L225 Difference]: With dead ends: 689 [2024-11-18 14:10:42,215 INFO L226 Difference]: Without dead ends: 384 [2024-11-18 14:10:42,217 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:10:42,219 INFO L432 NwaCegarLoop]: 506 mSDtfsCounter, 99 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 947 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:10:42,220 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 947 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:10:42,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2024-11-18 14:10:42,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 376. [2024-11-18 14:10:42,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 287 states have (on average 1.519163763066202) internal successors, (436), 291 states have internal predecessors, (436), 66 states have call successors, (66), 23 states have call predecessors, (66), 22 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-18 14:10:42,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 565 transitions. [2024-11-18 14:10:42,265 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 565 transitions. Word has length 134 [2024-11-18 14:10:42,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:10:42,268 INFO L471 AbstractCegarLoop]: Abstraction has 376 states and 565 transitions. [2024-11-18 14:10:42,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-18 14:10:42,269 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 565 transitions. [2024-11-18 14:10:42,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-18 14:10:42,274 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:10:42,275 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:10:42,295 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-18 14:10:42,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:10:42,476 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:10:42,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:10:42,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1022630467, now seen corresponding path program 1 times [2024-11-18 14:10:42,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:10:42,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505697106] [2024-11-18 14:10:42,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:10:42,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:10:42,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:10:42,688 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-18 14:10:42,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:10:42,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505697106] [2024-11-18 14:10:42,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505697106] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:10:42,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1077571826] [2024-11-18 14:10:42,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:10:42,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:10:42,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:10:42,695 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:10:42,696 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-18 14:10:43,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:10:43,036 INFO L255 TraceCheckSpWp]: Trace formula consists of 1132 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-18 14:10:43,041 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:10:43,099 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-18 14:10:43,102 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:10:43,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1077571826] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:10:43,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:10:43,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-18 14:10:43,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606776398] [2024-11-18 14:10:43,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:10:43,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:10:43,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:10:43,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:10:43,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:10:43,108 INFO L87 Difference]: Start difference. First operand 376 states and 565 transitions. Second operand has 5 states, 4 states have (on average 20.75) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-18 14:10:43,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:10:43,179 INFO L93 Difference]: Finished difference Result 743 states and 1120 transitions. [2024-11-18 14:10:43,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:10:43,181 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 20.75) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 135 [2024-11-18 14:10:43,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:10:43,183 INFO L225 Difference]: With dead ends: 743 [2024-11-18 14:10:43,183 INFO L226 Difference]: Without dead ends: 378 [2024-11-18 14:10:43,187 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:10:43,188 INFO L432 NwaCegarLoop]: 479 mSDtfsCounter, 2 mSDsluCounter, 1426 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1905 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:10:43,190 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1905 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:10:43,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2024-11-18 14:10:43,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 378. [2024-11-18 14:10:43,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 288 states have (on average 1.5173611111111112) internal successors, (437), 293 states have internal predecessors, (437), 66 states have call successors, (66), 23 states have call predecessors, (66), 23 states have return successors, (65), 63 states have call predecessors, (65), 63 states have call successors, (65) [2024-11-18 14:10:43,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 568 transitions. [2024-11-18 14:10:43,217 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 568 transitions. Word has length 135 [2024-11-18 14:10:43,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:10:43,218 INFO L471 AbstractCegarLoop]: Abstraction has 378 states and 568 transitions. [2024-11-18 14:10:43,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 20.75) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-18 14:10:43,218 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 568 transitions. [2024-11-18 14:10:43,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-18 14:10:43,222 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:10:43,222 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:10:43,243 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-18 14:10:43,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:10:43,423 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:10:43,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:10:43,423 INFO L85 PathProgramCache]: Analyzing trace with hash 2063647029, now seen corresponding path program 1 times [2024-11-18 14:10:43,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:10:43,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135197669] [2024-11-18 14:10:43,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:10:43,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:10:43,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:10:43,618 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-18 14:10:43,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:10:43,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135197669] [2024-11-18 14:10:43,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135197669] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:10:43,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1945987597] [2024-11-18 14:10:43,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:10:43,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:10:43,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:10:43,622 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:10:43,623 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-18 14:10:43,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:10:43,955 INFO L255 TraceCheckSpWp]: Trace formula consists of 1133 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-18 14:10:43,981 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:10:44,033 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-18 14:10:44,034 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:10:44,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1945987597] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:10:44,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:10:44,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2024-11-18 14:10:44,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830801670] [2024-11-18 14:10:44,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:10:44,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:10:44,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:10:44,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:10:44,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-18 14:10:44,036 INFO L87 Difference]: Start difference. First operand 378 states and 568 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-18 14:10:44,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:10:44,100 INFO L93 Difference]: Finished difference Result 745 states and 1125 transitions. [2024-11-18 14:10:44,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:10:44,101 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 136 [2024-11-18 14:10:44,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:10:44,104 INFO L225 Difference]: With dead ends: 745 [2024-11-18 14:10:44,104 INFO L226 Difference]: Without dead ends: 380 [2024-11-18 14:10:44,105 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-18 14:10:44,106 INFO L432 NwaCegarLoop]: 477 mSDtfsCounter, 2 mSDsluCounter, 1414 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1891 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:10:44,106 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1891 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:10:44,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2024-11-18 14:10:44,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 380. [2024-11-18 14:10:44,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 289 states have (on average 1.5155709342560553) internal successors, (438), 295 states have internal predecessors, (438), 66 states have call successors, (66), 23 states have call predecessors, (66), 24 states have return successors, (70), 63 states have call predecessors, (70), 63 states have call successors, (70) [2024-11-18 14:10:44,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 574 transitions. [2024-11-18 14:10:44,123 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 574 transitions. Word has length 136 [2024-11-18 14:10:44,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:10:44,124 INFO L471 AbstractCegarLoop]: Abstraction has 380 states and 574 transitions. [2024-11-18 14:10:44,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-18 14:10:44,124 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 574 transitions. [2024-11-18 14:10:44,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-18 14:10:44,126 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:10:44,127 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:10:44,148 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-18 14:10:44,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:10:44,328 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:10:44,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:10:44,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1671129868, now seen corresponding path program 1 times [2024-11-18 14:10:44,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:10:44,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147014113] [2024-11-18 14:10:44,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:10:44,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:10:44,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:10:44,486 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-18 14:10:44,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:10:44,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147014113] [2024-11-18 14:10:44,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147014113] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:10:44,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:10:44,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:10:44,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825755528] [2024-11-18 14:10:44,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:10:44,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:10:44,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:10:44,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:10:44,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:10:44,488 INFO L87 Difference]: Start difference. First operand 380 states and 574 transitions. Second operand has 5 states, 4 states have (on average 20.25) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-18 14:10:44,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:10:44,530 INFO L93 Difference]: Finished difference Result 737 states and 1116 transitions. [2024-11-18 14:10:44,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:10:44,531 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 20.25) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 137 [2024-11-18 14:10:44,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:10:44,533 INFO L225 Difference]: With dead ends: 737 [2024-11-18 14:10:44,533 INFO L226 Difference]: Without dead ends: 380 [2024-11-18 14:10:44,535 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:10:44,535 INFO L432 NwaCegarLoop]: 480 mSDtfsCounter, 2 mSDsluCounter, 1429 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1909 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:10:44,536 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1909 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:10:44,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2024-11-18 14:10:44,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 380. [2024-11-18 14:10:44,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 289 states have (on average 1.5155709342560553) internal successors, (438), 295 states have internal predecessors, (438), 66 states have call successors, (66), 23 states have call predecessors, (66), 24 states have return successors, (69), 63 states have call predecessors, (69), 63 states have call successors, (69) [2024-11-18 14:10:44,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 573 transitions. [2024-11-18 14:10:44,550 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 573 transitions. Word has length 137 [2024-11-18 14:10:44,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:10:44,551 INFO L471 AbstractCegarLoop]: Abstraction has 380 states and 573 transitions. [2024-11-18 14:10:44,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 20.25) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-18 14:10:44,551 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 573 transitions. [2024-11-18 14:10:44,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-18 14:10:44,553 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:10:44,553 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-18 14:10:44,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 14:10:44,554 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:10:44,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:10:44,554 INFO L85 PathProgramCache]: Analyzing trace with hash -937480124, now seen corresponding path program 2 times [2024-11-18 14:10:44,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:10:44,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398399323] [2024-11-18 14:10:44,555 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-18 14:10:44,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:10:44,584 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-18 14:10:44,585 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-18 14:10:44,730 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-18 14:10:44,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:10:44,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398399323] [2024-11-18 14:10:44,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398399323] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:10:44,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:10:44,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 14:10:44,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024807111] [2024-11-18 14:10:44,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:10:44,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 14:10:44,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:10:44,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 14:10:44,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:10:44,734 INFO L87 Difference]: Start difference. First operand 380 states and 573 transitions. Second operand has 8 states, 8 states have (on average 10.375) internal successors, (83), 7 states have internal predecessors, (83), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-18 14:10:45,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:10:45,190 INFO L93 Difference]: Finished difference Result 852 states and 1295 transitions. [2024-11-18 14:10:45,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-18 14:10:45,190 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 7 states have internal predecessors, (83), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) Word has length 138 [2024-11-18 14:10:45,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:10:45,195 INFO L225 Difference]: With dead ends: 852 [2024-11-18 14:10:45,196 INFO L226 Difference]: Without dead ends: 680 [2024-11-18 14:10:45,197 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-11-18 14:10:45,197 INFO L432 NwaCegarLoop]: 481 mSDtfsCounter, 527 mSDsluCounter, 2538 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 529 SdHoareTripleChecker+Valid, 3019 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 14:10:45,198 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [529 Valid, 3019 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 14:10:45,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2024-11-18 14:10:45,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 633. [2024-11-18 14:10:45,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 633 states, 490 states have (on average 1.5571428571428572) internal successors, (763), 497 states have internal predecessors, (763), 104 states have call successors, (104), 38 states have call predecessors, (104), 38 states have return successors, (116), 100 states have call predecessors, (116), 101 states have call successors, (116) [2024-11-18 14:10:45,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 983 transitions. [2024-11-18 14:10:45,231 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 983 transitions. Word has length 138 [2024-11-18 14:10:45,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:10:45,232 INFO L471 AbstractCegarLoop]: Abstraction has 633 states and 983 transitions. [2024-11-18 14:10:45,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 7 states have internal predecessors, (83), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-18 14:10:45,232 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 983 transitions. [2024-11-18 14:10:45,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-18 14:10:45,236 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:10:45,236 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-18 14:10:45,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 14:10:45,237 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:10:45,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:10:45,237 INFO L85 PathProgramCache]: Analyzing trace with hash -248019960, now seen corresponding path program 1 times [2024-11-18 14:10:45,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:10:45,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099985682] [2024-11-18 14:10:45,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:10:45,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:10:45,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:10:45,399 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-18 14:10:45,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:10:45,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099985682] [2024-11-18 14:10:45,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099985682] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:10:45,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:10:45,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:10:45,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580430814] [2024-11-18 14:10:45,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:10:45,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:10:45,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:10:45,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:10:45,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:10:45,402 INFO L87 Difference]: Start difference. First operand 633 states and 983 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, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-18 14:10:45,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:10:45,456 INFO L93 Difference]: Finished difference Result 1245 states and 1939 transitions. [2024-11-18 14:10:45,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:10:45,457 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, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 140 [2024-11-18 14:10:45,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:10:45,463 INFO L225 Difference]: With dead ends: 1245 [2024-11-18 14:10:45,463 INFO L226 Difference]: Without dead ends: 635 [2024-11-18 14:10:45,466 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:10:45,467 INFO L432 NwaCegarLoop]: 481 mSDtfsCounter, 1 mSDsluCounter, 1431 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1912 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:10:45,467 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1912 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:10:45,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2024-11-18 14:10:45,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 635. [2024-11-18 14:10:45,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 491 states have (on average 1.5560081466395113) internal successors, (764), 499 states have internal predecessors, (764), 104 states have call successors, (104), 38 states have call predecessors, (104), 39 states have return successors, (118), 100 states have call predecessors, (118), 101 states have call successors, (118) [2024-11-18 14:10:45,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 986 transitions. [2024-11-18 14:10:45,498 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 986 transitions. Word has length 140 [2024-11-18 14:10:45,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:10:45,498 INFO L471 AbstractCegarLoop]: Abstraction has 635 states and 986 transitions. [2024-11-18 14:10:45,498 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, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-18 14:10:45,499 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 986 transitions. [2024-11-18 14:10:45,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-18 14:10:45,502 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:10:45,502 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:10:45,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 14:10:45,503 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:10:45,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:10:45,503 INFO L85 PathProgramCache]: Analyzing trace with hash 81110062, now seen corresponding path program 1 times [2024-11-18 14:10:45,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:10:45,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154732821] [2024-11-18 14:10:45,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:10:45,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:10:45,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:10:45,648 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-18 14:10:45,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:10:45,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154732821] [2024-11-18 14:10:45,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154732821] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:10:45,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:10:45,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:10:45,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163566188] [2024-11-18 14:10:45,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:10:45,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:10:45,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:10:45,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:10:45,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:10:45,650 INFO L87 Difference]: Start difference. First operand 635 states and 986 transitions. Second operand has 5 states, 4 states have (on average 21.25) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-18 14:10:45,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:10:45,701 INFO L93 Difference]: Finished difference Result 1247 states and 1942 transitions. [2024-11-18 14:10:45,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:10:45,701 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.25) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 140 [2024-11-18 14:10:45,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:10:45,705 INFO L225 Difference]: With dead ends: 1247 [2024-11-18 14:10:45,705 INFO L226 Difference]: Without dead ends: 637 [2024-11-18 14:10:45,707 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:10:45,708 INFO L432 NwaCegarLoop]: 479 mSDtfsCounter, 0 mSDsluCounter, 1426 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1905 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:10:45,708 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1905 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:10:45,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2024-11-18 14:10:45,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 635. [2024-11-18 14:10:45,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 491 states have (on average 1.5560081466395113) internal successors, (764), 499 states have internal predecessors, (764), 104 states have call successors, (104), 38 states have call predecessors, (104), 39 states have return successors, (118), 100 states have call predecessors, (118), 101 states have call successors, (118) [2024-11-18 14:10:45,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 986 transitions. [2024-11-18 14:10:45,733 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 986 transitions. Word has length 140 [2024-11-18 14:10:45,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:10:45,733 INFO L471 AbstractCegarLoop]: Abstraction has 635 states and 986 transitions. [2024-11-18 14:10:45,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.25) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-18 14:10:45,733 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 986 transitions. [2024-11-18 14:10:45,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-18 14:10:45,737 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:10:45,737 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:10:45,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 14:10:45,738 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:10:45,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:10:45,738 INFO L85 PathProgramCache]: Analyzing trace with hash -880962115, now seen corresponding path program 1 times [2024-11-18 14:10:45,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:10:45,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333921641] [2024-11-18 14:10:45,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:10:45,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:10:45,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:10:45,886 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-18 14:10:45,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:10:45,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333921641] [2024-11-18 14:10:45,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333921641] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:10:45,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:10:45,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 14:10:45,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968028374] [2024-11-18 14:10:45,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:10:45,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 14:10:45,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:10:45,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 14:10:45,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:10:45,888 INFO L87 Difference]: Start difference. First operand 635 states and 986 transitions. Second operand has 8 states, 7 states have (on average 12.714285714285714) internal successors, (89), 8 states have internal predecessors, (89), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-18 14:10:46,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:10:46,037 INFO L93 Difference]: Finished difference Result 1069 states and 1641 transitions. [2024-11-18 14:10:46,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 14:10:46,038 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.714285714285714) internal successors, (89), 8 states have internal predecessors, (89), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) Word has length 141 [2024-11-18 14:10:46,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:10:46,064 INFO L225 Difference]: With dead ends: 1069 [2024-11-18 14:10:46,064 INFO L226 Difference]: Without dead ends: 646 [2024-11-18 14:10:46,066 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-18 14:10:46,067 INFO L432 NwaCegarLoop]: 471 mSDtfsCounter, 5 mSDsluCounter, 2797 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 3268 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:10:46,067 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 3268 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:10:46,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2024-11-18 14:10:46,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 640. [2024-11-18 14:10:46,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 640 states, 495 states have (on average 1.5535353535353535) internal successors, (769), 503 states have internal predecessors, (769), 104 states have call successors, (104), 39 states have call predecessors, (104), 40 states have return successors, (123), 100 states have call predecessors, (123), 101 states have call successors, (123) [2024-11-18 14:10:46,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 996 transitions. [2024-11-18 14:10:46,096 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 996 transitions. Word has length 141 [2024-11-18 14:10:46,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:10:46,098 INFO L471 AbstractCegarLoop]: Abstraction has 640 states and 996 transitions. [2024-11-18 14:10:46,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.714285714285714) internal successors, (89), 8 states have internal predecessors, (89), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-18 14:10:46,098 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 996 transitions. [2024-11-18 14:10:46,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-18 14:10:46,102 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:10:46,102 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:10:46,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 14:10:46,102 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:10:46,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:10:46,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1308183952, now seen corresponding path program 2 times [2024-11-18 14:10:46,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:10:46,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047923284] [2024-11-18 14:10:46,103 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-18 14:10:46,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:10:46,134 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-18 14:10:46,134 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-18 14:10:46,264 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-18 14:10:46,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:10:46,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047923284] [2024-11-18 14:10:46,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047923284] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:10:46,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:10:46,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 14:10:46,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504102131] [2024-11-18 14:10:46,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:10:46,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 14:10:46,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:10:46,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 14:10:46,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:10:46,266 INFO L87 Difference]: Start difference. First operand 640 states and 996 transitions. Second operand has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 4 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-18 14:10:46,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:10:46,379 INFO L93 Difference]: Finished difference Result 847 states and 1288 transitions. [2024-11-18 14:10:46,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 14:10:46,380 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 4 states have call predecessors, (16), 2 states have call successors, (16) Word has length 140 [2024-11-18 14:10:46,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:10:46,385 INFO L225 Difference]: With dead ends: 847 [2024-11-18 14:10:46,385 INFO L226 Difference]: Without dead ends: 671 [2024-11-18 14:10:46,386 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-18 14:10:46,388 INFO L432 NwaCegarLoop]: 513 mSDtfsCounter, 26 mSDsluCounter, 3022 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 3535 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:10:46,388 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 3535 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:10:46,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 671 states. [2024-11-18 14:10:46,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 671 to 657. [2024-11-18 14:10:46,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 504 states have (on average 1.5496031746031746) internal successors, (781), 515 states have internal predecessors, (781), 111 states have call successors, (111), 39 states have call predecessors, (111), 41 states have return successors, (133), 106 states have call predecessors, (133), 108 states have call successors, (133) [2024-11-18 14:10:46,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 1025 transitions. [2024-11-18 14:10:46,419 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 1025 transitions. Word has length 140 [2024-11-18 14:10:46,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:10:46,420 INFO L471 AbstractCegarLoop]: Abstraction has 657 states and 1025 transitions. [2024-11-18 14:10:46,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 4 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-18 14:10:46,420 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 1025 transitions. [2024-11-18 14:10:46,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-18 14:10:46,424 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:10:46,424 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, 1, 1, 1, 1, 1] [2024-11-18 14:10:46,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 14:10:46,424 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:10:46,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:10:46,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1446786321, now seen corresponding path program 1 times [2024-11-18 14:10:46,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:10:46,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494090264] [2024-11-18 14:10:46,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:10:46,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:10:46,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:10:46,610 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-18 14:10:46,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:10:46,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494090264] [2024-11-18 14:10:46,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494090264] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:10:46,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:10:46,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 14:10:46,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740265849] [2024-11-18 14:10:46,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:10:46,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 14:10:46,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:10:46,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 14:10:46,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:10:46,612 INFO L87 Difference]: Start difference. First operand 657 states and 1025 transitions. Second operand has 8 states, 7 states have (on average 13.0) internal successors, (91), 8 states have internal predecessors, (91), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-18 14:10:46,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:10:46,737 INFO L93 Difference]: Finished difference Result 1095 states and 1689 transitions. [2024-11-18 14:10:46,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 14:10:46,738 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.0) internal successors, (91), 8 states have internal predecessors, (91), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) Word has length 141 [2024-11-18 14:10:46,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:10:46,742 INFO L225 Difference]: With dead ends: 1095 [2024-11-18 14:10:46,742 INFO L226 Difference]: Without dead ends: 470 [2024-11-18 14:10:46,744 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-18 14:10:46,745 INFO L432 NwaCegarLoop]: 471 mSDtfsCounter, 7 mSDsluCounter, 2797 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 3268 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:10:46,745 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 3268 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:10:46,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2024-11-18 14:10:46,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 470. [2024-11-18 14:10:46,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 356 states have (on average 1.5084269662921348) internal successors, (537), 367 states have internal predecessors, (537), 79 states have call successors, (79), 31 states have call predecessors, (79), 34 states have return successors, (93), 75 states have call predecessors, (93), 76 states have call successors, (93) [2024-11-18 14:10:46,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 709 transitions. [2024-11-18 14:10:46,767 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 709 transitions. Word has length 141 [2024-11-18 14:10:46,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:10:46,767 INFO L471 AbstractCegarLoop]: Abstraction has 470 states and 709 transitions. [2024-11-18 14:10:46,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.0) internal successors, (91), 8 states have internal predecessors, (91), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-18 14:10:46,767 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 709 transitions. [2024-11-18 14:10:46,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-18 14:10:46,770 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:10:46,770 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:10:46,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 14:10:46,770 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:10:46,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:10:46,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1668278730, now seen corresponding path program 1 times [2024-11-18 14:10:46,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:10:46,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52438268] [2024-11-18 14:10:46,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:10:46,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:10:46,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:10:46,871 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-18 14:10:46,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:10:46,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52438268] [2024-11-18 14:10:46,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52438268] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:10:46,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1378011047] [2024-11-18 14:10:46,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:10:46,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:10:46,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:10:46,874 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:10:46,875 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-18 14:10:47,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:10:47,195 INFO L255 TraceCheckSpWp]: Trace formula consists of 1140 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-18 14:10:47,200 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:10:47,225 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-18 14:10:47,226 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 14:10:47,332 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-18 14:10:47,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1378011047] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 14:10:47,332 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 14:10:47,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-18 14:10:47,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549734182] [2024-11-18 14:10:47,333 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 14:10:47,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 14:10:47,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:10:47,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 14:10:47,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:10:47,334 INFO L87 Difference]: Start difference. First operand 470 states and 709 transitions. Second operand has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-18 14:10:47,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:10:47,477 INFO L93 Difference]: Finished difference Result 1062 states and 1653 transitions. [2024-11-18 14:10:47,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 14:10:47,478 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 143 [2024-11-18 14:10:47,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:10:47,484 INFO L225 Difference]: With dead ends: 1062 [2024-11-18 14:10:47,485 INFO L226 Difference]: Without dead ends: 797 [2024-11-18 14:10:47,486 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 283 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:10:47,487 INFO L432 NwaCegarLoop]: 525 mSDtfsCounter, 382 mSDsluCounter, 1186 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 1711 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:10:47,487 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [427 Valid, 1711 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:10:47,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 797 states. [2024-11-18 14:10:47,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 797 to 773. [2024-11-18 14:10:47,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 773 states, 595 states have (on average 1.5714285714285714) internal successors, (935), 606 states have internal predecessors, (935), 143 states have call successors, (143), 31 states have call predecessors, (143), 34 states have return successors, (167), 139 states have call predecessors, (167), 140 states have call successors, (167) [2024-11-18 14:10:47,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 773 states to 773 states and 1245 transitions. [2024-11-18 14:10:47,519 INFO L78 Accepts]: Start accepts. Automaton has 773 states and 1245 transitions. Word has length 143 [2024-11-18 14:10:47,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:10:47,520 INFO L471 AbstractCegarLoop]: Abstraction has 773 states and 1245 transitions. [2024-11-18 14:10:47,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-18 14:10:47,520 INFO L276 IsEmpty]: Start isEmpty. Operand 773 states and 1245 transitions. [2024-11-18 14:10:47,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-18 14:10:47,524 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:10:47,524 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:10:47,545 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-18 14:10:47,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:10:47,726 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:10:47,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:10:47,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1174625837, now seen corresponding path program 1 times [2024-11-18 14:10:47,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:10:47,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924819687] [2024-11-18 14:10:47,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:10:47,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:10:47,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:10:47,823 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-18 14:10:47,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:10:47,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924819687] [2024-11-18 14:10:47,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924819687] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:10:47,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:10:47,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:10:47,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935928391] [2024-11-18 14:10:47,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:10:47,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:10:47,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:10:47,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:10:47,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:10:47,826 INFO L87 Difference]: Start difference. First operand 773 states and 1245 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-18 14:10:47,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:10:47,860 INFO L93 Difference]: Finished difference Result 1783 states and 2919 transitions. [2024-11-18 14:10:47,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:10:47,861 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 149 [2024-11-18 14:10:47,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:10:47,868 INFO L225 Difference]: With dead ends: 1783 [2024-11-18 14:10:47,868 INFO L226 Difference]: Without dead ends: 1081 [2024-11-18 14:10:47,871 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:10:47,872 INFO L432 NwaCegarLoop]: 504 mSDtfsCounter, 97 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 989 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:10:47,872 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 989 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:10:47,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1081 states. [2024-11-18 14:10:47,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1081 to 1073. [2024-11-18 14:10:47,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1073 states, 831 states have (on average 1.5884476534296028) internal successors, (1320), 842 states have internal predecessors, (1320), 207 states have call successors, (207), 31 states have call predecessors, (207), 34 states have return successors, (241), 203 states have call predecessors, (241), 204 states have call successors, (241) [2024-11-18 14:10:47,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1073 states to 1073 states and 1768 transitions. [2024-11-18 14:10:47,918 INFO L78 Accepts]: Start accepts. Automaton has 1073 states and 1768 transitions. Word has length 149 [2024-11-18 14:10:47,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:10:47,919 INFO L471 AbstractCegarLoop]: Abstraction has 1073 states and 1768 transitions. [2024-11-18 14:10:47,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-18 14:10:47,919 INFO L276 IsEmpty]: Start isEmpty. Operand 1073 states and 1768 transitions. [2024-11-18 14:10:47,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-18 14:10:47,925 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:10:47,925 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:10:47,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-18 14:10:47,926 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:10:47,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:10:47,926 INFO L85 PathProgramCache]: Analyzing trace with hash -2019322203, now seen corresponding path program 1 times [2024-11-18 14:10:47,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:10:47,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503092190] [2024-11-18 14:10:47,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:10:47,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:10:47,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:10:47,994 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-18 14:10:47,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:10:47,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503092190] [2024-11-18 14:10:47,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503092190] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:10:47,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:10:47,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:10:47,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685482423] [2024-11-18 14:10:47,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:10:47,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:10:47,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:10:47,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:10:47,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:10:47,997 INFO L87 Difference]: Start difference. First operand 1073 states and 1768 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-18 14:10:48,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:10:48,050 INFO L93 Difference]: Finished difference Result 2498 states and 4148 transitions. [2024-11-18 14:10:48,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:10:48,051 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 150 [2024-11-18 14:10:48,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:10:48,060 INFO L225 Difference]: With dead ends: 2498 [2024-11-18 14:10:48,061 INFO L226 Difference]: Without dead ends: 1549 [2024-11-18 14:10:48,065 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:10:48,065 INFO L432 NwaCegarLoop]: 486 mSDtfsCounter, 95 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 966 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:10:48,067 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 966 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:10:48,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1549 states. [2024-11-18 14:10:48,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1549 to 1541. [2024-11-18 14:10:48,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1541 states, 1204 states have (on average 1.600498338870432) internal successors, (1927), 1215 states have internal predecessors, (1927), 302 states have call successors, (302), 31 states have call predecessors, (302), 34 states have return successors, (336), 298 states have call predecessors, (336), 299 states have call successors, (336) [2024-11-18 14:10:48,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1541 states to 1541 states and 2565 transitions. [2024-11-18 14:10:48,140 INFO L78 Accepts]: Start accepts. Automaton has 1541 states and 2565 transitions. Word has length 150 [2024-11-18 14:10:48,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:10:48,141 INFO L471 AbstractCegarLoop]: Abstraction has 1541 states and 2565 transitions. [2024-11-18 14:10:48,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-18 14:10:48,141 INFO L276 IsEmpty]: Start isEmpty. Operand 1541 states and 2565 transitions. [2024-11-18 14:10:48,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-18 14:10:48,150 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:10:48,150 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:10:48,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-18 14:10:48,150 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:10:48,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:10:48,151 INFO L85 PathProgramCache]: Analyzing trace with hash 496280053, now seen corresponding path program 1 times [2024-11-18 14:10:48,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:10:48,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302239131] [2024-11-18 14:10:48,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:10:48,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:10:48,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:10:48,252 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-18 14:10:48,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:10:48,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302239131] [2024-11-18 14:10:48,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302239131] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:10:48,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:10:48,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:10:48,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919372428] [2024-11-18 14:10:48,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:10:48,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:10:48,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:10:48,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:10:48,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:10:48,254 INFO L87 Difference]: Start difference. First operand 1541 states and 2565 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-18 14:10:48,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:10:48,340 INFO L93 Difference]: Finished difference Result 3545 states and 5955 transitions. [2024-11-18 14:10:48,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:10:48,341 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 151 [2024-11-18 14:10:48,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:10:48,355 INFO L225 Difference]: With dead ends: 3545 [2024-11-18 14:10:48,356 INFO L226 Difference]: Without dead ends: 2253 [2024-11-18 14:10:48,363 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:10:48,364 INFO L432 NwaCegarLoop]: 486 mSDtfsCounter, 93 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 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 [2024-11-18 14:10:48,364 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 963 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:10:48,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2253 states. [2024-11-18 14:10:48,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2253 to 2245. [2024-11-18 14:10:48,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2245 states, 1785 states have (on average 1.6100840336134454) internal successors, (2874), 1796 states have internal predecessors, (2874), 425 states have call successors, (425), 31 states have call predecessors, (425), 34 states have return successors, (475), 421 states have call predecessors, (475), 422 states have call successors, (475) [2024-11-18 14:10:48,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2245 states to 2245 states and 3774 transitions. [2024-11-18 14:10:48,461 INFO L78 Accepts]: Start accepts. Automaton has 2245 states and 3774 transitions. Word has length 151 [2024-11-18 14:10:48,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:10:48,462 INFO L471 AbstractCegarLoop]: Abstraction has 2245 states and 3774 transitions. [2024-11-18 14:10:48,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-18 14:10:48,462 INFO L276 IsEmpty]: Start isEmpty. Operand 2245 states and 3774 transitions. [2024-11-18 14:10:48,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-18 14:10:48,474 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:10:48,475 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:10:48,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-18 14:10:48,475 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:10:48,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:10:48,476 INFO L85 PathProgramCache]: Analyzing trace with hash -32958650, now seen corresponding path program 1 times [2024-11-18 14:10:48,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:10:48,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102392021] [2024-11-18 14:10:48,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:10:48,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:10:48,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:10:48,540 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-18 14:10:48,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:10:48,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102392021] [2024-11-18 14:10:48,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102392021] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:10:48,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:10:48,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:10:48,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113245458] [2024-11-18 14:10:48,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:10:48,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:10:48,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:10:48,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:10:48,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:10:48,542 INFO L87 Difference]: Start difference. First operand 2245 states and 3774 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-18 14:10:48,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:10:48,623 INFO L93 Difference]: Finished difference Result 5164 states and 8752 transitions. [2024-11-18 14:10:48,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:10:48,624 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 152 [2024-11-18 14:10:48,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:10:48,644 INFO L225 Difference]: With dead ends: 5164 [2024-11-18 14:10:48,644 INFO L226 Difference]: Without dead ends: 3372 [2024-11-18 14:10:48,653 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:10:48,654 INFO L432 NwaCegarLoop]: 486 mSDtfsCounter, 91 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 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 [2024-11-18 14:10:48,654 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 963 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:10:48,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3372 states. [2024-11-18 14:10:48,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3372 to 3364. [2024-11-18 14:10:48,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3364 states, 2725 states have (on average 1.61651376146789) internal successors, (4405), 2736 states have internal predecessors, (4405), 604 states have call successors, (604), 31 states have call predecessors, (604), 34 states have return successors, (680), 600 states have call predecessors, (680), 601 states have call successors, (680) [2024-11-18 14:10:48,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3364 states to 3364 states and 5689 transitions. [2024-11-18 14:10:48,836 INFO L78 Accepts]: Start accepts. Automaton has 3364 states and 5689 transitions. Word has length 152 [2024-11-18 14:10:48,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:10:48,836 INFO L471 AbstractCegarLoop]: Abstraction has 3364 states and 5689 transitions. [2024-11-18 14:10:48,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-18 14:10:48,837 INFO L276 IsEmpty]: Start isEmpty. Operand 3364 states and 5689 transitions. [2024-11-18 14:10:48,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-18 14:10:48,854 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:10:48,854 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:10:48,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-18 14:10:48,855 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:10:48,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:10:48,855 INFO L85 PathProgramCache]: Analyzing trace with hash -756942799, now seen corresponding path program 1 times [2024-11-18 14:10:48,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:10:48,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297403349] [2024-11-18 14:10:48,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:10:48,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:10:48,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:10:48,918 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-18 14:10:48,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:10:48,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297403349] [2024-11-18 14:10:48,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297403349] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:10:48,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:10:48,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:10:48,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125160390] [2024-11-18 14:10:48,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:10:48,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:10:48,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:10:48,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:10:48,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:10:48,920 INFO L87 Difference]: Start difference. First operand 3364 states and 5689 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-18 14:10:49,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:10:49,083 INFO L93 Difference]: Finished difference Result 8082 states and 13751 transitions. [2024-11-18 14:10:49,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:10:49,084 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 153 [2024-11-18 14:10:49,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:10:49,115 INFO L225 Difference]: With dead ends: 8082 [2024-11-18 14:10:49,116 INFO L226 Difference]: Without dead ends: 5403 [2024-11-18 14:10:49,126 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:10:49,126 INFO L432 NwaCegarLoop]: 504 mSDtfsCounter, 89 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 989 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:10:49,127 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 989 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:10:49,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5403 states. [2024-11-18 14:10:49,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5403 to 5395. [2024-11-18 14:10:49,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5395 states, 4380 states have (on average 1.6111872146118722) internal successors, (7057), 4391 states have internal predecessors, (7057), 980 states have call successors, (980), 31 states have call predecessors, (980), 34 states have return successors, (1100), 976 states have call predecessors, (1100), 977 states have call successors, (1100) [2024-11-18 14:10:49,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5395 states to 5395 states and 9137 transitions. [2024-11-18 14:10:49,378 INFO L78 Accepts]: Start accepts. Automaton has 5395 states and 9137 transitions. Word has length 153 [2024-11-18 14:10:49,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:10:49,379 INFO L471 AbstractCegarLoop]: Abstraction has 5395 states and 9137 transitions. [2024-11-18 14:10:49,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-18 14:10:49,379 INFO L276 IsEmpty]: Start isEmpty. Operand 5395 states and 9137 transitions. [2024-11-18 14:10:49,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-18 14:10:49,404 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:10:49,405 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:10:49,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-18 14:10:49,405 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:10:49,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:10:49,406 INFO L85 PathProgramCache]: Analyzing trace with hash -804088566, now seen corresponding path program 1 times [2024-11-18 14:10:49,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:10:49,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461077522] [2024-11-18 14:10:49,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:10:49,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:10:49,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:10:49,531 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-18 14:10:49,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:10:49,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461077522] [2024-11-18 14:10:49,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461077522] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:10:49,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:10:49,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:10:49,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882379087] [2024-11-18 14:10:49,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:10:49,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:10:49,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:10:49,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:10:49,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:10:49,535 INFO L87 Difference]: Start difference. First operand 5395 states and 9137 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-18 14:10:49,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:10:49,739 INFO L93 Difference]: Finished difference Result 13224 states and 22549 transitions. [2024-11-18 14:10:49,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:10:49,739 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 154 [2024-11-18 14:10:49,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:10:49,810 INFO L225 Difference]: With dead ends: 13224 [2024-11-18 14:10:49,811 INFO L226 Difference]: Without dead ends: 8891 [2024-11-18 14:10:49,835 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:10:49,836 INFO L432 NwaCegarLoop]: 488 mSDtfsCounter, 87 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:10:49,836 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 968 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:10:49,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8891 states. [2024-11-18 14:10:50,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8891 to 8883. [2024-11-18 14:10:50,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8883 states, 7262 states have (on average 1.6098870834480858) internal successors, (11691), 7273 states have internal predecessors, (11691), 1586 states have call successors, (1586), 31 states have call predecessors, (1586), 34 states have return successors, (1784), 1582 states have call predecessors, (1784), 1583 states have call successors, (1784) [2024-11-18 14:10:50,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8883 states to 8883 states and 15061 transitions. [2024-11-18 14:10:50,434 INFO L78 Accepts]: Start accepts. Automaton has 8883 states and 15061 transitions. Word has length 154 [2024-11-18 14:10:50,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:10:50,434 INFO L471 AbstractCegarLoop]: Abstraction has 8883 states and 15061 transitions. [2024-11-18 14:10:50,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-18 14:10:50,435 INFO L276 IsEmpty]: Start isEmpty. Operand 8883 states and 15061 transitions. [2024-11-18 14:10:50,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-18 14:10:50,472 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:10:50,472 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:10:50,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-18 14:10:50,472 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:10:50,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:10:50,473 INFO L85 PathProgramCache]: Analyzing trace with hash 897661491, now seen corresponding path program 1 times [2024-11-18 14:10:50,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:10:50,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677125270] [2024-11-18 14:10:50,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:10:50,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:10:50,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:10:50,551 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-18 14:10:50,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:10:50,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677125270] [2024-11-18 14:10:50,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677125270] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:10:50,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:10:50,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:10:50,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236036596] [2024-11-18 14:10:50,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:10:50,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:10:50,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:10:50,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:10:50,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:10:50,553 INFO L87 Difference]: Start difference. First operand 8883 states and 15061 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-18 14:10:50,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:10:50,974 INFO L93 Difference]: Finished difference Result 22883 states and 38974 transitions. [2024-11-18 14:10:50,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:10:50,974 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 155 [2024-11-18 14:10:50,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:10:51,048 INFO L225 Difference]: With dead ends: 22883 [2024-11-18 14:10:51,048 INFO L226 Difference]: Without dead ends: 15484 [2024-11-18 14:10:51,092 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:10:51,093 INFO L432 NwaCegarLoop]: 507 mSDtfsCounter, 85 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 993 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:10:51,093 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 993 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:10:51,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15484 states. [2024-11-18 14:10:51,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15484 to 15476. [2024-11-18 14:10:51,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15476 states, 12652 states have (on average 1.601090736642428) internal successors, (20257), 12663 states have internal predecessors, (20257), 2789 states have call successors, (2789), 31 states have call predecessors, (2789), 34 states have return successors, (3131), 2785 states have call predecessors, (3131), 2786 states have call successors, (3131) [2024-11-18 14:10:51,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15476 states to 15476 states and 26177 transitions. [2024-11-18 14:10:51,849 INFO L78 Accepts]: Start accepts. Automaton has 15476 states and 26177 transitions. Word has length 155 [2024-11-18 14:10:51,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:10:51,852 INFO L471 AbstractCegarLoop]: Abstraction has 15476 states and 26177 transitions. [2024-11-18 14:10:51,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-18 14:10:51,852 INFO L276 IsEmpty]: Start isEmpty. Operand 15476 states and 26177 transitions. [2024-11-18 14:10:51,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-18 14:10:51,893 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:10:51,893 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:10:51,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-18 14:10:51,893 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:10:51,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:10:51,894 INFO L85 PathProgramCache]: Analyzing trace with hash -835073717, now seen corresponding path program 1 times [2024-11-18 14:10:51,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:10:51,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190594738] [2024-11-18 14:10:51,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:10:51,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:10:51,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:10:51,969 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-18 14:10:51,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:10:51,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190594738] [2024-11-18 14:10:51,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190594738] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:10:51,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:10:51,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:10:51,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848593645] [2024-11-18 14:10:51,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:10:51,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:10:51,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:10:51,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:10:51,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:10:51,971 INFO L87 Difference]: Start difference. First operand 15476 states and 26177 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-18 14:10:52,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:10:52,974 INFO L93 Difference]: Finished difference Result 40839 states and 69417 transitions. [2024-11-18 14:10:52,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:10:52,974 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 156 [2024-11-18 14:10:52,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:10:53,112 INFO L225 Difference]: With dead ends: 40839 [2024-11-18 14:10:53,112 INFO L226 Difference]: Without dead ends: 27454 [2024-11-18 14:10:53,170 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:10:53,171 INFO L432 NwaCegarLoop]: 486 mSDtfsCounter, 83 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 966 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:10:53,172 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 966 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:10:53,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27454 states. [2024-11-18 14:10:54,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27454 to 27446. [2024-11-18 14:10:54,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27446 states, 22583 states have (on average 1.5969977416640837) internal successors, (36065), 22594 states have internal predecessors, (36065), 4828 states have call successors, (4828), 31 states have call predecessors, (4828), 34 states have return successors, (5444), 4824 states have call predecessors, (5444), 4825 states have call successors, (5444) [2024-11-18 14:10:54,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27446 states to 27446 states and 46337 transitions. [2024-11-18 14:10:54,633 INFO L78 Accepts]: Start accepts. Automaton has 27446 states and 46337 transitions. Word has length 156 [2024-11-18 14:10:54,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:10:54,636 INFO L471 AbstractCegarLoop]: Abstraction has 27446 states and 46337 transitions. [2024-11-18 14:10:54,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-18 14:10:54,636 INFO L276 IsEmpty]: Start isEmpty. Operand 27446 states and 46337 transitions. [2024-11-18 14:10:54,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-18 14:10:54,694 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:10:54,694 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:10:54,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-18 14:10:54,695 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:10:54,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:10:54,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1144984725, now seen corresponding path program 1 times [2024-11-18 14:10:54,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:10:54,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502647048] [2024-11-18 14:10:54,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:10:54,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:10:54,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:10:54,766 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-18 14:10:54,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:10:54,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502647048] [2024-11-18 14:10:54,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502647048] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:10:54,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:10:54,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:10:54,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009593394] [2024-11-18 14:10:54,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:10:54,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:10:54,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:10:54,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:10:54,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:10:54,769 INFO L87 Difference]: Start difference. First operand 27446 states and 46337 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-18 14:10:56,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:10:56,465 INFO L93 Difference]: Finished difference Result 74626 states and 126484 transitions. [2024-11-18 14:10:56,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:10:56,467 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 157 [2024-11-18 14:10:56,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:10:56,724 INFO L225 Difference]: With dead ends: 74626 [2024-11-18 14:10:56,725 INFO L226 Difference]: Without dead ends: 50003 [2024-11-18 14:10:56,805 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:10:56,807 INFO L432 NwaCegarLoop]: 490 mSDtfsCounter, 81 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 970 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:10:56,808 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 970 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:10:56,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50003 states. [2024-11-18 14:10:58,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50003 to 49995. [2024-11-18 14:10:58,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49995 states, 41417 states have (on average 1.5912789434290266) internal successors, (65906), 41428 states have internal predecessors, (65906), 8543 states have call successors, (8543), 31 states have call predecessors, (8543), 34 states have return successors, (9691), 8539 states have call predecessors, (9691), 8540 states have call successors, (9691) [2024-11-18 14:10:58,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49995 states to 49995 states and 84140 transitions. [2024-11-18 14:10:58,630 INFO L78 Accepts]: Start accepts. Automaton has 49995 states and 84140 transitions. Word has length 157 [2024-11-18 14:10:58,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:10:58,633 INFO L471 AbstractCegarLoop]: Abstraction has 49995 states and 84140 transitions. [2024-11-18 14:10:58,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-18 14:10:58,633 INFO L276 IsEmpty]: Start isEmpty. Operand 49995 states and 84140 transitions. [2024-11-18 14:10:58,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-18 14:10:58,716 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:10:58,716 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:10:58,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-18 14:10:58,717 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:10:58,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:10:58,717 INFO L85 PathProgramCache]: Analyzing trace with hash 236540139, now seen corresponding path program 1 times [2024-11-18 14:10:58,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:10:58,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761100145] [2024-11-18 14:10:58,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:10:58,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:10:58,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:10:58,791 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-18 14:10:58,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:10:58,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761100145] [2024-11-18 14:10:58,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761100145] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:10:58,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:10:58,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:10:58,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130047254] [2024-11-18 14:10:58,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:10:58,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:10:58,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:10:58,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:10:58,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:10:58,793 INFO L87 Difference]: Start difference. First operand 49995 states and 84140 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-18 14:11:01,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:11:01,663 INFO L93 Difference]: Finished difference Result 93112 states and 157046 transitions. [2024-11-18 14:11:01,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:11:01,664 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 158 [2024-11-18 14:11:01,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:11:02,211 INFO L225 Difference]: With dead ends: 93112 [2024-11-18 14:11:02,212 INFO L226 Difference]: Without dead ends: 92847 [2024-11-18 14:11:02,278 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:11:02,279 INFO L432 NwaCegarLoop]: 488 mSDtfsCounter, 76 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 972 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:11:02,280 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 972 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:11:02,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92847 states. [2024-11-18 14:11:05,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92847 to 92839. [2024-11-18 14:11:05,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92839 states, 77462 states have (on average 1.5838992021894607) internal successors, (122692), 77473 states have internal predecessors, (122692), 15342 states have call successors, (15342), 31 states have call predecessors, (15342), 34 states have return successors, (17536), 15338 states have call predecessors, (17536), 15339 states have call successors, (17536) [2024-11-18 14:11:05,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92839 states to 92839 states and 155570 transitions. [2024-11-18 14:11:05,906 INFO L78 Accepts]: Start accepts. Automaton has 92839 states and 155570 transitions. Word has length 158 [2024-11-18 14:11:05,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:11:05,907 INFO L471 AbstractCegarLoop]: Abstraction has 92839 states and 155570 transitions. [2024-11-18 14:11:05,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-18 14:11:05,907 INFO L276 IsEmpty]: Start isEmpty. Operand 92839 states and 155570 transitions. [2024-11-18 14:11:06,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-18 14:11:06,007 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:11:06,007 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:11:06,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-18 14:11:06,007 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:11:06,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:11:06,009 INFO L85 PathProgramCache]: Analyzing trace with hash -297907244, now seen corresponding path program 1 times [2024-11-18 14:11:06,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:11:06,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910842731] [2024-11-18 14:11:06,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:11:06,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:11:06,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:11:06,939 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-18 14:11:06,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:11:06,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910842731] [2024-11-18 14:11:06,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910842731] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:11:06,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [569454930] [2024-11-18 14:11:06,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:11:06,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:11:06,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:11:06,942 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:11:06,943 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-18 14:11:07,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:11:07,299 INFO L255 TraceCheckSpWp]: Trace formula consists of 1191 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-18 14:11:07,305 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:11:07,517 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-18 14:11:07,517 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 14:11:07,873 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-18 14:11:07,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [569454930] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 14:11:07,874 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 14:11:07,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 9, 9] total 27 [2024-11-18 14:11:07,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075839203] [2024-11-18 14:11:07,875 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 14:11:07,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-18 14:11:07,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:11:07,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-18 14:11:07,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=636, Unknown=0, NotChecked=0, Total=702 [2024-11-18 14:11:07,877 INFO L87 Difference]: Start difference. First operand 92839 states and 155570 transitions. Second operand has 27 states, 26 states have (on average 9.76923076923077) internal successors, (254), 23 states have internal predecessors, (254), 9 states have call successors, (47), 8 states have call predecessors, (47), 11 states have return successors, (41), 11 states have call predecessors, (41), 9 states have call successors, (41) [2024-11-18 14:11:22,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:11:22,828 INFO L93 Difference]: Finished difference Result 370644 states and 644988 transitions. [2024-11-18 14:11:22,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2024-11-18 14:11:22,829 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 9.76923076923077) internal successors, (254), 23 states have internal predecessors, (254), 9 states have call successors, (47), 8 states have call predecessors, (47), 11 states have return successors, (41), 11 states have call predecessors, (41), 9 states have call successors, (41) Word has length 159 [2024-11-18 14:11:22,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:11:24,732 INFO L225 Difference]: With dead ends: 370644 [2024-11-18 14:11:24,733 INFO L226 Difference]: Without dead ends: 370401 [2024-11-18 14:11:24,900 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 423 GetRequests, 325 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2572 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1172, Invalid=8728, Unknown=0, NotChecked=0, Total=9900 [2024-11-18 14:11:24,901 INFO L432 NwaCegarLoop]: 225 mSDtfsCounter, 5565 mSDsluCounter, 4259 mSDsCounter, 0 mSdLazyCounter, 9025 mSolverCounterSat, 1718 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5613 SdHoareTripleChecker+Valid, 4484 SdHoareTripleChecker+Invalid, 10743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1718 IncrementalHoareTripleChecker+Valid, 9025 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:11:24,901 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5613 Valid, 4484 Invalid, 10743 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1718 Valid, 9025 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-11-18 14:11:25,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370401 states. [2024-11-18 14:11:39,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370401 to 370045. [2024-11-18 14:11:40,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370045 states, 308874 states have (on average 1.5847303431172581) internal successors, (489482), 308704 states have internal predecessors, (489482), 60982 states have call successors, (60982), 163 states have call predecessors, (60982), 188 states have return successors, (84966), 61199 states have call predecessors, (84966), 60974 states have call successors, (84966) [2024-11-18 14:11:42,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370045 states to 370045 states and 635430 transitions. [2024-11-18 14:11:42,785 INFO L78 Accepts]: Start accepts. Automaton has 370045 states and 635430 transitions. Word has length 159 [2024-11-18 14:11:42,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:11:42,786 INFO L471 AbstractCegarLoop]: Abstraction has 370045 states and 635430 transitions. [2024-11-18 14:11:42,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 9.76923076923077) internal successors, (254), 23 states have internal predecessors, (254), 9 states have call successors, (47), 8 states have call predecessors, (47), 11 states have return successors, (41), 11 states have call predecessors, (41), 9 states have call successors, (41) [2024-11-18 14:11:42,786 INFO L276 IsEmpty]: Start isEmpty. Operand 370045 states and 635430 transitions. [2024-11-18 14:11:43,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-18 14:11:43,232 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:11:43,233 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:11:43,253 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-18 14:11:43,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:11:43,434 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:11:43,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:11:43,435 INFO L85 PathProgramCache]: Analyzing trace with hash 779319911, now seen corresponding path program 1 times [2024-11-18 14:11:43,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:11:43,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802745471] [2024-11-18 14:11:43,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:11:43,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:11:43,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:11:43,640 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-18 14:11:43,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:11:43,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802745471] [2024-11-18 14:11:43,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802745471] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:11:43,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [457694710] [2024-11-18 14:11:43,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:11:43,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:11:43,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:11:43,643 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:11:43,644 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-18 14:11:44,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:11:44,621 INFO L255 TraceCheckSpWp]: Trace formula consists of 1193 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-18 14:11:44,626 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:11:44,784 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-18 14:11:44,785 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:11:44,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [457694710] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:11:44,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:11:44,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 16 [2024-11-18 14:11:44,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462774347] [2024-11-18 14:11:44,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:11:44,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 14:11:44,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:11:44,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 14:11:44,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2024-11-18 14:11:44,787 INFO L87 Difference]: Start difference. First operand 370045 states and 635430 transitions. Second operand has 9 states, 8 states have (on average 13.875) internal successors, (111), 7 states have internal predecessors, (111), 4 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16)