./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec0_product16.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec0_product16.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 5ce5fd5bda0c8594f52541a2ff1031f1544bc9165bf7645718c7801e066263fc --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 00:41:51,184 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 00:41:51,248 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 00:41:51,255 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 00:41:51,257 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 00:41:51,281 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 00:41:51,282 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 00:41:51,282 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 00:41:51,283 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 00:41:51,284 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 00:41:51,284 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 00:41:51,285 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 00:41:51,285 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 00:41:51,286 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 00:41:51,286 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 00:41:51,287 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 00:41:51,287 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 00:41:51,287 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 00:41:51,288 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 00:41:51,288 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 00:41:51,288 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 00:41:51,292 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 00:41:51,293 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 00:41:51,293 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 00:41:51,293 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 00:41:51,293 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 00:41:51,294 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 00:41:51,294 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 00:41:51,294 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 00:41:51,294 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 00:41:51,295 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 00:41:51,295 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 00:41:51,295 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 00:41:51,295 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 00:41:51,295 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 00:41:51,296 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 00:41:51,296 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 00:41:51,296 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 00:41:51,297 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 00:41:51,297 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 00:41:51,297 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 00:41:51,298 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 00:41:51,298 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ce5fd5bda0c8594f52541a2ff1031f1544bc9165bf7645718c7801e066263fc [2024-10-24 00:41:51,554 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 00:41:51,574 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 00:41:51,579 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 00:41:51,580 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 00:41:51,581 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 00:41:51,582 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec0_product16.cil.c [2024-10-24 00:41:53,052 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 00:41:53,349 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 00:41:53,356 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec0_product16.cil.c [2024-10-24 00:41:53,377 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9f2bc383/59a5d9e357184d0f8c07248361d0f52c/FLAG9674bdcd2 [2024-10-24 00:41:53,617 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9f2bc383/59a5d9e357184d0f8c07248361d0f52c [2024-10-24 00:41:53,620 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 00:41:53,621 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 00:41:53,622 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 00:41:53,622 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 00:41:53,626 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 00:41:53,627 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:41:53" (1/1) ... [2024-10-24 00:41:53,627 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@351482b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:41:53, skipping insertion in model container [2024-10-24 00:41:53,628 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:41:53" (1/1) ... [2024-10-24 00:41:53,691 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 00:41:53,984 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec0_product16.cil.c[7449,7462] [2024-10-24 00:41:54,283 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 00:41:54,297 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 00:41:54,307 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [48] [2024-10-24 00:41:54,310 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [97] [2024-10-24 00:41:54,310 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [398] [2024-10-24 00:41:54,310 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [407] [2024-10-24 00:41:54,310 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [519] [2024-10-24 00:41:54,311 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [735] [2024-10-24 00:41:54,311 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1101] [2024-10-24 00:41:54,311 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2173] [2024-10-24 00:41:54,311 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptForward_spec.i","") [2578] [2024-10-24 00:41:54,311 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2597] [2024-10-24 00:41:54,312 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2614] [2024-10-24 00:41:54,334 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec0_product16.cil.c[7449,7462] [2024-10-24 00:41:54,419 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 00:41:54,453 INFO L204 MainTranslator]: Completed translation [2024-10-24 00:41:54,453 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:41:54 WrapperNode [2024-10-24 00:41:54,454 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 00:41:54,455 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 00:41:54,455 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 00:41:54,455 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 00:41:54,462 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:41:54" (1/1) ... [2024-10-24 00:41:54,495 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:41:54" (1/1) ... [2024-10-24 00:41:54,539 INFO L138 Inliner]: procedures = 125, calls = 181, calls flagged for inlining = 55, calls inlined = 50, statements flattened = 980 [2024-10-24 00:41:54,540 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 00:41:54,541 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 00:41:54,541 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 00:41:54,541 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 00:41:54,556 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:41:54" (1/1) ... [2024-10-24 00:41:54,556 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:41:54" (1/1) ... [2024-10-24 00:41:54,566 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:41:54" (1/1) ... [2024-10-24 00:41:54,597 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4]. 29 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0]. [2024-10-24 00:41:54,597 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:41:54" (1/1) ... [2024-10-24 00:41:54,598 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:41:54" (1/1) ... [2024-10-24 00:41:54,612 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:41:54" (1/1) ... [2024-10-24 00:41:54,619 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:41:54" (1/1) ... [2024-10-24 00:41:54,624 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:41:54" (1/1) ... [2024-10-24 00:41:54,627 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:41:54" (1/1) ... [2024-10-24 00:41:54,633 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 00:41:54,634 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 00:41:54,634 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 00:41:54,634 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 00:41:54,635 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:41:54" (1/1) ... [2024-10-24 00:41:54,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 00:41:54,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:41:54,677 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 00:41:54,679 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 00:41:54,718 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-10-24 00:41:54,718 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-10-24 00:41:54,719 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-10-24 00:41:54,719 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-10-24 00:41:54,719 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-10-24 00:41:54,719 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-10-24 00:41:54,719 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-10-24 00:41:54,719 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-10-24 00:41:54,720 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-10-24 00:41:54,720 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-10-24 00:41:54,720 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-10-24 00:41:54,720 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-10-24 00:41:54,720 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-10-24 00:41:54,721 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-10-24 00:41:54,721 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-10-24 00:41:54,721 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-10-24 00:41:54,721 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-10-24 00:41:54,721 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-10-24 00:41:54,721 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 00:41:54,722 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-10-24 00:41:54,722 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-10-24 00:41:54,722 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-10-24 00:41:54,722 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-10-24 00:41:54,722 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-10-24 00:41:54,723 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-10-24 00:41:54,724 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-10-24 00:41:54,724 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-10-24 00:41:54,724 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-10-24 00:41:54,724 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-10-24 00:41:54,724 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-10-24 00:41:54,724 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-10-24 00:41:54,725 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-10-24 00:41:54,725 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-10-24 00:41:54,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 00:41:54,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-24 00:41:54,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-24 00:41:54,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-24 00:41:54,725 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-10-24 00:41:54,726 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-10-24 00:41:54,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 00:41:54,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 00:41:54,903 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 00:41:54,905 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 00:41:55,669 INFO L? ?]: Removed 408 outVars from TransFormulas that were not future-live. [2024-10-24 00:41:55,669 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 00:41:55,759 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 00:41:55,759 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 00:41:55,759 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:41:55 BoogieIcfgContainer [2024-10-24 00:41:55,759 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 00:41:55,767 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 00:41:55,768 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 00:41:55,775 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 00:41:55,775 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 12:41:53" (1/3) ... [2024-10-24 00:41:55,776 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ce5e0be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:41:55, skipping insertion in model container [2024-10-24 00:41:55,776 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:41:54" (2/3) ... [2024-10-24 00:41:55,776 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ce5e0be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:41:55, skipping insertion in model container [2024-10-24 00:41:55,776 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:41:55" (3/3) ... [2024-10-24 00:41:55,777 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec0_product16.cil.c [2024-10-24 00:41:55,801 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 00:41:55,802 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 00:41:55,904 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 00:41:55,912 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;@2ed32f3f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 00:41:55,913 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 00:41:55,918 INFO L276 IsEmpty]: Start isEmpty. Operand has 272 states, 208 states have (on average 1.6009615384615385) internal successors, (333), 212 states have internal predecessors, (333), 45 states have call successors, (45), 17 states have call predecessors, (45), 17 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-10-24 00:41:55,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-10-24 00:41:55,934 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:41:55,935 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:41:55,935 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:41:55,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:41:55,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1746149753, now seen corresponding path program 1 times [2024-10-24 00:41:55,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:41:55,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420826157] [2024-10-24 00:41:55,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:41:55,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:41:56,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:56,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:41:56,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:56,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:41:56,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:56,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:41:56,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:56,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 00:41:56,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:56,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 00:41:56,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:56,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 00:41:56,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:56,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 00:41:56,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:56,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 00:41:56,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:56,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-24 00:41:56,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:56,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 00:41:56,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:56,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 00:41:56,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:56,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-24 00:41:56,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:56,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 00:41:56,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:56,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 00:41:56,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:56,737 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-24 00:41:56,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:41:56,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420826157] [2024-10-24 00:41:56,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420826157] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:41:56,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2136811379] [2024-10-24 00:41:56,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:41:56,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:41:56,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:41:56,741 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 00:41:56,743 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 00:41:57,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:57,095 INFO L255 TraceCheckSpWp]: Trace formula consists of 992 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-24 00:41:57,105 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:41:57,132 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-10-24 00:41:57,133 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 00:41:57,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2136811379] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:41:57,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 00:41:57,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2024-10-24 00:41:57,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169789894] [2024-10-24 00:41:57,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:41:57,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 00:41:57,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:41:57,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 00:41:57,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 00:41:57,169 INFO L87 Difference]: Start difference. First operand has 272 states, 208 states have (on average 1.6009615384615385) internal successors, (333), 212 states have internal predecessors, (333), 45 states have call successors, (45), 17 states have call predecessors, (45), 17 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) Second operand has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-24 00:41:57,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:41:57,267 INFO L93 Difference]: Finished difference Result 399 states and 609 transitions. [2024-10-24 00:41:57,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 00:41:57,271 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 107 [2024-10-24 00:41:57,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:41:57,286 INFO L225 Difference]: With dead ends: 399 [2024-10-24 00:41:57,287 INFO L226 Difference]: Without dead ends: 269 [2024-10-24 00:41:57,292 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 00:41:57,297 INFO L432 NwaCegarLoop]: 405 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 00:41:57,300 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 405 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 00:41:57,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2024-10-24 00:41:57,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 269. [2024-10-24 00:41:57,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 206 states have (on average 1.5825242718446602) internal successors, (326), 209 states have internal predecessors, (326), 45 states have call successors, (45), 17 states have call predecessors, (45), 17 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-10-24 00:41:57,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 415 transitions. [2024-10-24 00:41:57,365 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 415 transitions. Word has length 107 [2024-10-24 00:41:57,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:41:57,369 INFO L471 AbstractCegarLoop]: Abstraction has 269 states and 415 transitions. [2024-10-24 00:41:57,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-24 00:41:57,370 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 415 transitions. [2024-10-24 00:41:57,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-10-24 00:41:57,381 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:41:57,381 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:41:57,396 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-24 00:41:57,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-10-24 00:41:57,582 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:41:57,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:41:57,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1038942423, now seen corresponding path program 1 times [2024-10-24 00:41:57,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:41:57,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120379970] [2024-10-24 00:41:57,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:41:57,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:41:57,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:57,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:41:57,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:57,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:41:57,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:57,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:41:57,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:57,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 00:41:57,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:57,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 00:41:57,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:57,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 00:41:57,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:57,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 00:41:57,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:57,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-24 00:41:57,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:57,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 00:41:57,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:57,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 00:41:57,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:57,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-24 00:41:57,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:57,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 00:41:57,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:57,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-24 00:41:57,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:57,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 00:41:57,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:57,920 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-24 00:41:57,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:41:57,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120379970] [2024-10-24 00:41:57,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120379970] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:41:57,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1496691720] [2024-10-24 00:41:57,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:41:57,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:41:57,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:41:57,925 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 00:41:57,927 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-24 00:41:58,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:58,241 INFO L255 TraceCheckSpWp]: Trace formula consists of 993 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-24 00:41:58,245 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:41:58,274 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-10-24 00:41:58,274 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 00:41:58,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1496691720] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:41:58,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 00:41:58,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-10-24 00:41:58,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039635392] [2024-10-24 00:41:58,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:41:58,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 00:41:58,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:41:58,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 00:41:58,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-24 00:41:58,278 INFO L87 Difference]: Start difference. First operand 269 states and 415 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-24 00:41:58,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:41:58,338 INFO L93 Difference]: Finished difference Result 395 states and 596 transitions. [2024-10-24 00:41:58,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 00:41:58,339 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 108 [2024-10-24 00:41:58,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:41:58,342 INFO L225 Difference]: With dead ends: 395 [2024-10-24 00:41:58,342 INFO L226 Difference]: Without dead ends: 271 [2024-10-24 00:41:58,343 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-24 00:41:58,344 INFO L432 NwaCegarLoop]: 402 mSDtfsCounter, 0 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 803 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 00:41:58,345 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 803 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 00:41:58,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2024-10-24 00:41:58,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 271. [2024-10-24 00:41:58,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 208 states have (on average 1.5769230769230769) internal successors, (328), 211 states have internal predecessors, (328), 45 states have call successors, (45), 17 states have call predecessors, (45), 17 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-10-24 00:41:58,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 417 transitions. [2024-10-24 00:41:58,365 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 417 transitions. Word has length 108 [2024-10-24 00:41:58,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:41:58,365 INFO L471 AbstractCegarLoop]: Abstraction has 271 states and 417 transitions. [2024-10-24 00:41:58,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-24 00:41:58,365 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 417 transitions. [2024-10-24 00:41:58,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-10-24 00:41:58,369 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:41:58,369 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:41:58,387 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-24 00:41:58,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-10-24 00:41:58,571 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:41:58,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:41:58,571 INFO L85 PathProgramCache]: Analyzing trace with hash -774669386, now seen corresponding path program 1 times [2024-10-24 00:41:58,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:41:58,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347224686] [2024-10-24 00:41:58,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:41:58,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:41:58,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:58,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:41:58,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:58,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:41:58,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:58,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:41:58,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:58,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 00:41:58,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:58,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 00:41:58,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:58,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 00:41:58,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:58,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-24 00:41:58,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:58,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 00:41:58,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:58,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-24 00:41:58,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:58,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 00:41:58,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:58,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 00:41:58,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:58,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 00:41:58,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:58,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-24 00:41:58,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:58,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 00:41:58,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:58,788 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-10-24 00:41:58,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:41:58,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347224686] [2024-10-24 00:41:58,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347224686] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:41:58,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [329906926] [2024-10-24 00:41:58,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:41:58,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:41:58,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:41:58,791 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 00:41:58,793 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-24 00:41:59,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:59,089 INFO L255 TraceCheckSpWp]: Trace formula consists of 1005 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 00:41:59,097 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:41:59,126 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-10-24 00:41:59,128 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 00:41:59,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [329906926] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:41:59,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 00:41:59,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-10-24 00:41:59,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092836947] [2024-10-24 00:41:59,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:41:59,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 00:41:59,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:41:59,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 00:41:59,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-24 00:41:59,133 INFO L87 Difference]: Start difference. First operand 271 states and 417 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-24 00:41:59,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:41:59,199 INFO L93 Difference]: Finished difference Result 572 states and 893 transitions. [2024-10-24 00:41:59,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 00:41:59,200 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 113 [2024-10-24 00:41:59,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:41:59,207 INFO L225 Difference]: With dead ends: 572 [2024-10-24 00:41:59,207 INFO L226 Difference]: Without dead ends: 323 [2024-10-24 00:41:59,210 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-24 00:41:59,213 INFO L432 NwaCegarLoop]: 410 mSDtfsCounter, 102 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 768 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 00:41:59,214 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 768 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 00:41:59,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2024-10-24 00:41:59,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 318. [2024-10-24 00:41:59,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 244 states have (on average 1.5901639344262295) internal successors, (388), 247 states have internal predecessors, (388), 56 states have call successors, (56), 17 states have call predecessors, (56), 17 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2024-10-24 00:41:59,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 499 transitions. [2024-10-24 00:41:59,257 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 499 transitions. Word has length 113 [2024-10-24 00:41:59,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:41:59,259 INFO L471 AbstractCegarLoop]: Abstraction has 318 states and 499 transitions. [2024-10-24 00:41:59,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-24 00:41:59,259 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 499 transitions. [2024-10-24 00:41:59,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-24 00:41:59,262 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:41:59,262 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:41:59,280 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-24 00:41:59,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:41:59,463 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:41:59,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:41:59,464 INFO L85 PathProgramCache]: Analyzing trace with hash -229216264, now seen corresponding path program 1 times [2024-10-24 00:41:59,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:41:59,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655638740] [2024-10-24 00:41:59,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:41:59,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:41:59,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:59,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:41:59,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:59,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:41:59,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:59,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:41:59,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:59,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 00:41:59,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:59,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 00:41:59,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:59,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 00:41:59,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:59,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-24 00:41:59,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:59,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-24 00:41:59,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:59,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 00:41:59,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:59,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-24 00:41:59,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:59,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-24 00:41:59,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:59,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-24 00:41:59,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:59,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 00:41:59,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:59,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 00:41:59,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:59,716 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-10-24 00:41:59,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:41:59,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655638740] [2024-10-24 00:41:59,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655638740] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:41:59,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [940498571] [2024-10-24 00:41:59,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:41:59,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:41:59,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:41:59,722 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 00:41:59,726 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-24 00:41:59,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:41:59,998 INFO L255 TraceCheckSpWp]: Trace formula consists of 1010 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-24 00:42:00,002 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:42:00,066 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-10-24 00:42:00,067 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 00:42:00,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [940498571] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:42:00,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 00:42:00,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-10-24 00:42:00,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125316423] [2024-10-24 00:42:00,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:42:00,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 00:42:00,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:00,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 00:42:00,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-24 00:42:00,069 INFO L87 Difference]: Start difference. First operand 318 states and 499 transitions. Second operand has 5 states, 4 states have (on average 17.75) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-24 00:42:00,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:00,162 INFO L93 Difference]: Finished difference Result 631 states and 992 transitions. [2024-10-24 00:42:00,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 00:42:00,162 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.75) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 114 [2024-10-24 00:42:00,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:00,165 INFO L225 Difference]: With dead ends: 631 [2024-10-24 00:42:00,167 INFO L226 Difference]: Without dead ends: 320 [2024-10-24 00:42:00,168 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-24 00:42:00,169 INFO L432 NwaCegarLoop]: 394 mSDtfsCounter, 2 mSDsluCounter, 1171 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1565 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:00,169 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1565 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 00:42:00,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2024-10-24 00:42:00,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 320. [2024-10-24 00:42:00,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 245 states have (on average 1.5877551020408163) internal successors, (389), 249 states have internal predecessors, (389), 56 states have call successors, (56), 17 states have call predecessors, (56), 18 states have return successors, (57), 55 states have call predecessors, (57), 55 states have call successors, (57) [2024-10-24 00:42:00,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 502 transitions. [2024-10-24 00:42:00,184 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 502 transitions. Word has length 114 [2024-10-24 00:42:00,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:00,185 INFO L471 AbstractCegarLoop]: Abstraction has 320 states and 502 transitions. [2024-10-24 00:42:00,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.75) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-24 00:42:00,185 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 502 transitions. [2024-10-24 00:42:00,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-10-24 00:42:00,187 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:00,188 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:42:00,206 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-24 00:42:00,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:42:00,392 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:00,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:00,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1718062331, now seen corresponding path program 1 times [2024-10-24 00:42:00,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:00,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357967956] [2024-10-24 00:42:00,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:00,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:00,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:00,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:00,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:00,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:00,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:00,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:00,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:00,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:42:00,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:00,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-24 00:42:00,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:00,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-24 00:42:00,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:00,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 00:42:00,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:00,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-24 00:42:00,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:00,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-24 00:42:00,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:00,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 00:42:00,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:00,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-24 00:42:00,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:00,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 00:42:00,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:00,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 00:42:00,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:00,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 00:42:00,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:00,660 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-10-24 00:42:00,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:00,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357967956] [2024-10-24 00:42:00,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357967956] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:42:00,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1713518411] [2024-10-24 00:42:00,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:00,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:42:00,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:42:00,662 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 00:42:00,664 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-24 00:42:00,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:00,938 INFO L255 TraceCheckSpWp]: Trace formula consists of 1011 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-24 00:42:00,942 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:42:01,003 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-10-24 00:42:01,003 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 00:42:01,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1713518411] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:42:01,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 00:42:01,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-10-24 00:42:01,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409646412] [2024-10-24 00:42:01,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:42:01,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 00:42:01,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:01,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 00:42:01,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-10-24 00:42:01,005 INFO L87 Difference]: Start difference. First operand 320 states and 502 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-24 00:42:01,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:01,119 INFO L93 Difference]: Finished difference Result 633 states and 997 transitions. [2024-10-24 00:42:01,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 00:42:01,119 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 115 [2024-10-24 00:42:01,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:01,122 INFO L225 Difference]: With dead ends: 633 [2024-10-24 00:42:01,122 INFO L226 Difference]: Without dead ends: 322 [2024-10-24 00:42:01,123 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-10-24 00:42:01,125 INFO L432 NwaCegarLoop]: 392 mSDtfsCounter, 2 mSDsluCounter, 1159 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1551 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:01,126 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1551 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 00:42:01,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2024-10-24 00:42:01,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 322. [2024-10-24 00:42:01,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 246 states have (on average 1.5853658536585367) internal successors, (390), 251 states have internal predecessors, (390), 56 states have call successors, (56), 17 states have call predecessors, (56), 19 states have return successors, (62), 55 states have call predecessors, (62), 55 states have call successors, (62) [2024-10-24 00:42:01,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 508 transitions. [2024-10-24 00:42:01,148 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 508 transitions. Word has length 115 [2024-10-24 00:42:01,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:01,149 INFO L471 AbstractCegarLoop]: Abstraction has 322 states and 508 transitions. [2024-10-24 00:42:01,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-24 00:42:01,149 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 508 transitions. [2024-10-24 00:42:01,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-10-24 00:42:01,151 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:01,151 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] [2024-10-24 00:42:01,168 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-24 00:42:01,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:42:01,352 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:01,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:01,352 INFO L85 PathProgramCache]: Analyzing trace with hash -984556666, now seen corresponding path program 1 times [2024-10-24 00:42:01,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:01,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704259330] [2024-10-24 00:42:01,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:01,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:01,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:01,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:01,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:01,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:01,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:01,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:01,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:01,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:42:01,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:01,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:42:01,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:01,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 00:42:01,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:01,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 00:42:01,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:01,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 00:42:01,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:01,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-24 00:42:01,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:01,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 00:42:01,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:01,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-24 00:42:01,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:01,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 00:42:01,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:01,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 00:42:01,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:01,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 00:42:01,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:01,569 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-10-24 00:42:01,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:01,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704259330] [2024-10-24 00:42:01,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704259330] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:42:01,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:42:01,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 00:42:01,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306185493] [2024-10-24 00:42:01,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:42:01,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 00:42:01,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:01,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 00:42:01,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 00:42:01,571 INFO L87 Difference]: Start difference. First operand 322 states and 508 transitions. Second operand has 9 states, 8 states have (on average 8.625) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-24 00:42:03,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:03,225 INFO L93 Difference]: Finished difference Result 743 states and 1178 transitions. [2024-10-24 00:42:03,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 00:42:03,225 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.625) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 116 [2024-10-24 00:42:03,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:03,229 INFO L225 Difference]: With dead ends: 743 [2024-10-24 00:42:03,229 INFO L226 Difference]: Without dead ends: 440 [2024-10-24 00:42:03,230 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-24 00:42:03,230 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 891 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 1935 mSolverCounterSat, 307 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 892 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 2242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 307 IncrementalHoareTripleChecker+Valid, 1935 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:03,231 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [892 Valid, 968 Invalid, 2242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [307 Valid, 1935 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-24 00:42:03,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2024-10-24 00:42:03,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 322. [2024-10-24 00:42:03,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 246 states have (on average 1.5853658536585367) internal successors, (390), 251 states have internal predecessors, (390), 56 states have call successors, (56), 17 states have call predecessors, (56), 19 states have return successors, (61), 55 states have call predecessors, (61), 55 states have call successors, (61) [2024-10-24 00:42:03,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 507 transitions. [2024-10-24 00:42:03,270 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 507 transitions. Word has length 116 [2024-10-24 00:42:03,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:03,271 INFO L471 AbstractCegarLoop]: Abstraction has 322 states and 507 transitions. [2024-10-24 00:42:03,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.625) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-24 00:42:03,271 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 507 transitions. [2024-10-24 00:42:03,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-10-24 00:42:03,274 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:03,274 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] [2024-10-24 00:42:03,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 00:42:03,274 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:03,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:03,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1329859797, now seen corresponding path program 2 times [2024-10-24 00:42:03,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:03,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324695057] [2024-10-24 00:42:03,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:03,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:03,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:03,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:03,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:03,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:03,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:03,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:03,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:03,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:42:03,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:03,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:42:03,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:03,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 00:42:03,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:03,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 00:42:03,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:03,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 00:42:03,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:03,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-24 00:42:03,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:03,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 00:42:03,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:03,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 00:42:03,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:03,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-24 00:42:03,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:03,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-24 00:42:03,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:03,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 00:42:03,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:03,476 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-10-24 00:42:03,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:03,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324695057] [2024-10-24 00:42:03,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324695057] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:42:03,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:42:03,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 00:42:03,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605055121] [2024-10-24 00:42:03,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:42:03,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 00:42:03,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:03,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 00:42:03,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 00:42:03,478 INFO L87 Difference]: Start difference. First operand 322 states and 507 transitions. Second operand has 9 states, 8 states have (on average 8.75) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-24 00:42:05,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:05,113 INFO L93 Difference]: Finished difference Result 745 states and 1181 transitions. [2024-10-24 00:42:05,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 00:42:05,113 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.75) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 117 [2024-10-24 00:42:05,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:05,116 INFO L225 Difference]: With dead ends: 745 [2024-10-24 00:42:05,116 INFO L226 Difference]: Without dead ends: 442 [2024-10-24 00:42:05,122 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-24 00:42:05,122 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 862 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 2058 mSolverCounterSat, 281 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 863 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 2339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 281 IncrementalHoareTripleChecker+Valid, 2058 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:05,123 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [863 Valid, 968 Invalid, 2339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [281 Valid, 2058 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-24 00:42:05,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2024-10-24 00:42:05,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 324. [2024-10-24 00:42:05,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 247 states have (on average 1.582995951417004) internal successors, (391), 253 states have internal predecessors, (391), 56 states have call successors, (56), 17 states have call predecessors, (56), 20 states have return successors, (63), 55 states have call predecessors, (63), 55 states have call successors, (63) [2024-10-24 00:42:05,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 510 transitions. [2024-10-24 00:42:05,164 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 510 transitions. Word has length 117 [2024-10-24 00:42:05,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:05,164 INFO L471 AbstractCegarLoop]: Abstraction has 324 states and 510 transitions. [2024-10-24 00:42:05,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.75) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-24 00:42:05,165 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 510 transitions. [2024-10-24 00:42:05,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-10-24 00:42:05,167 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:05,167 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] [2024-10-24 00:42:05,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 00:42:05,168 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:05,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:05,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1898308287, now seen corresponding path program 1 times [2024-10-24 00:42:05,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:05,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740473835] [2024-10-24 00:42:05,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:05,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:05,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:05,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:05,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:05,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:05,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:05,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:05,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:05,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:42:05,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:05,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:42:05,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:05,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:42:05,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:05,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 00:42:05,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:05,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-24 00:42:05,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:05,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-24 00:42:05,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:05,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 00:42:05,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:05,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 00:42:05,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:05,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 00:42:05,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:05,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 00:42:05,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:05,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 00:42:05,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:05,392 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-10-24 00:42:05,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:05,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740473835] [2024-10-24 00:42:05,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740473835] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:42:05,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:42:05,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 00:42:05,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916390762] [2024-10-24 00:42:05,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:42:05,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 00:42:05,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:05,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 00:42:05,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-10-24 00:42:05,395 INFO L87 Difference]: Start difference. First operand 324 states and 510 transitions. Second operand has 12 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 8 states have internal predecessors, (74), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-24 00:42:07,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:07,556 INFO L93 Difference]: Finished difference Result 743 states and 1176 transitions. [2024-10-24 00:42:07,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 00:42:07,557 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 8 states have internal predecessors, (74), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 118 [2024-10-24 00:42:07,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:07,562 INFO L225 Difference]: With dead ends: 743 [2024-10-24 00:42:07,563 INFO L226 Difference]: Without dead ends: 442 [2024-10-24 00:42:07,564 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-10-24 00:42:07,568 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 914 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 3324 mSolverCounterSat, 301 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 915 SdHoareTripleChecker+Valid, 1343 SdHoareTripleChecker+Invalid, 3625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 301 IncrementalHoareTripleChecker+Valid, 3324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:07,568 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [915 Valid, 1343 Invalid, 3625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [301 Valid, 3324 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-24 00:42:07,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2024-10-24 00:42:07,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 324. [2024-10-24 00:42:07,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 247 states have (on average 1.582995951417004) internal successors, (391), 253 states have internal predecessors, (391), 56 states have call successors, (56), 17 states have call predecessors, (56), 20 states have return successors, (62), 55 states have call predecessors, (62), 55 states have call successors, (62) [2024-10-24 00:42:07,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 509 transitions. [2024-10-24 00:42:07,613 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 509 transitions. Word has length 118 [2024-10-24 00:42:07,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:07,613 INFO L471 AbstractCegarLoop]: Abstraction has 324 states and 509 transitions. [2024-10-24 00:42:07,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 8 states have internal predecessors, (74), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-24 00:42:07,614 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 509 transitions. [2024-10-24 00:42:07,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-10-24 00:42:07,616 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:07,616 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] [2024-10-24 00:42:07,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 00:42:07,616 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:07,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:07,617 INFO L85 PathProgramCache]: Analyzing trace with hash -804675646, now seen corresponding path program 2 times [2024-10-24 00:42:07,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:07,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28908209] [2024-10-24 00:42:07,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:07,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:07,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:07,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:07,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:07,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:07,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:07,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:07,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:07,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:42:07,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:07,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:42:07,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:07,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:42:07,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:07,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-24 00:42:07,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:07,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-24 00:42:07,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:07,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 00:42:07,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:07,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 00:42:07,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:07,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 00:42:07,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:07,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-24 00:42:07,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:07,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-24 00:42:07,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:07,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 00:42:07,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:07,845 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-10-24 00:42:07,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:07,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28908209] [2024-10-24 00:42:07,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28908209] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:42:07,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:42:07,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 00:42:07,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187178446] [2024-10-24 00:42:07,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:42:07,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 00:42:07,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:07,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 00:42:07,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-10-24 00:42:07,847 INFO L87 Difference]: Start difference. First operand 324 states and 509 transitions. Second operand has 12 states, 11 states have (on average 6.818181818181818) internal successors, (75), 8 states have internal predecessors, (75), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-24 00:42:09,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:09,780 INFO L93 Difference]: Finished difference Result 745 states and 1182 transitions. [2024-10-24 00:42:09,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 00:42:09,781 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.818181818181818) internal successors, (75), 8 states have internal predecessors, (75), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 119 [2024-10-24 00:42:09,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:09,784 INFO L225 Difference]: With dead ends: 745 [2024-10-24 00:42:09,784 INFO L226 Difference]: Without dead ends: 444 [2024-10-24 00:42:09,785 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-10-24 00:42:09,786 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 909 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 3153 mSolverCounterSat, 326 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 910 SdHoareTripleChecker+Valid, 1344 SdHoareTripleChecker+Invalid, 3479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 326 IncrementalHoareTripleChecker+Valid, 3153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:09,786 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [910 Valid, 1344 Invalid, 3479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [326 Valid, 3153 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-24 00:42:09,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2024-10-24 00:42:09,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 326. [2024-10-24 00:42:09,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 248 states have (on average 1.5806451612903225) internal successors, (392), 255 states have internal predecessors, (392), 56 states have call successors, (56), 17 states have call predecessors, (56), 21 states have return successors, (67), 55 states have call predecessors, (67), 55 states have call successors, (67) [2024-10-24 00:42:09,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 515 transitions. [2024-10-24 00:42:09,811 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 515 transitions. Word has length 119 [2024-10-24 00:42:09,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:09,812 INFO L471 AbstractCegarLoop]: Abstraction has 326 states and 515 transitions. [2024-10-24 00:42:09,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.818181818181818) internal successors, (75), 8 states have internal predecessors, (75), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-24 00:42:09,812 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 515 transitions. [2024-10-24 00:42:09,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-10-24 00:42:09,814 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:09,814 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] [2024-10-24 00:42:09,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 00:42:09,814 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:09,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:09,815 INFO L85 PathProgramCache]: Analyzing trace with hash 176908988, now seen corresponding path program 1 times [2024-10-24 00:42:09,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:09,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16116305] [2024-10-24 00:42:09,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:09,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:09,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:09,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:09,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:09,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:09,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:09,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:09,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:09,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:42:09,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:09,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:42:09,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:09,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:42:09,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:09,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-24 00:42:09,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:09,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-24 00:42:09,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:09,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 00:42:09,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:09,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-24 00:42:09,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:09,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-24 00:42:09,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:09,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 00:42:09,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:09,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 00:42:09,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:09,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 00:42:09,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:09,950 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-10-24 00:42:09,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:09,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16116305] [2024-10-24 00:42:09,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16116305] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:42:09,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1076535696] [2024-10-24 00:42:09,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:09,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:42:09,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:42:09,952 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 00:42:09,954 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-24 00:42:10,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:10,217 INFO L255 TraceCheckSpWp]: Trace formula consists of 1016 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 00:42:10,220 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:42:10,247 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-10-24 00:42:10,251 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 00:42:10,339 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-10-24 00:42:10,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1076535696] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 00:42:10,340 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 00:42:10,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2024-10-24 00:42:10,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874383504] [2024-10-24 00:42:10,342 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 00:42:10,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 00:42:10,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:10,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 00:42:10,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-10-24 00:42:10,343 INFO L87 Difference]: Start difference. First operand 326 states and 515 transitions. Second operand has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 7 states have internal predecessors, (103), 2 states have call successors, (34), 6 states have call predecessors, (34), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-10-24 00:42:11,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:11,803 INFO L93 Difference]: Finished difference Result 898 states and 1494 transitions. [2024-10-24 00:42:11,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 00:42:11,804 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 7 states have internal predecessors, (103), 2 states have call successors, (34), 6 states have call predecessors, (34), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 120 [2024-10-24 00:42:11,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:11,812 INFO L225 Difference]: With dead ends: 898 [2024-10-24 00:42:11,813 INFO L226 Difference]: Without dead ends: 774 [2024-10-24 00:42:11,814 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2024-10-24 00:42:11,815 INFO L432 NwaCegarLoop]: 193 mSDtfsCounter, 1286 mSDsluCounter, 976 mSDsCounter, 0 mSdLazyCounter, 1698 mSolverCounterSat, 456 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1331 SdHoareTripleChecker+Valid, 1169 SdHoareTripleChecker+Invalid, 2154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 456 IncrementalHoareTripleChecker+Valid, 1698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:11,815 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1331 Valid, 1169 Invalid, 2154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [456 Valid, 1698 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-24 00:42:11,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 774 states. [2024-10-24 00:42:11,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 774 to 641. [2024-10-24 00:42:11,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 499 states have (on average 1.6372745490981964) internal successors, (817), 506 states have internal predecessors, (817), 120 states have call successors, (120), 17 states have call predecessors, (120), 21 states have return successors, (141), 119 states have call predecessors, (141), 119 states have call successors, (141) [2024-10-24 00:42:11,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 1078 transitions. [2024-10-24 00:42:11,857 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 1078 transitions. Word has length 120 [2024-10-24 00:42:11,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:11,859 INFO L471 AbstractCegarLoop]: Abstraction has 641 states and 1078 transitions. [2024-10-24 00:42:11,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 7 states have internal predecessors, (103), 2 states have call successors, (34), 6 states have call predecessors, (34), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-10-24 00:42:11,859 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 1078 transitions. [2024-10-24 00:42:11,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-10-24 00:42:11,863 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:11,863 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:42:11,881 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-24 00:42:12,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:42:12,064 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:12,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:12,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1199088929, now seen corresponding path program 1 times [2024-10-24 00:42:12,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:12,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229108368] [2024-10-24 00:42:12,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:12,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:12,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:12,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:12,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:12,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:12,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:12,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:12,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:12,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:42:12,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:12,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:42:12,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:12,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:42:12,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:12,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-24 00:42:12,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:12,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-24 00:42:12,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:12,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 00:42:12,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:12,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-24 00:42:12,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:12,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 00:42:12,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:12,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 00:42:12,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:12,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 00:42:12,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:12,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 00:42:12,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:12,195 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-10-24 00:42:12,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:12,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229108368] [2024-10-24 00:42:12,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229108368] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:42:12,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:42:12,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:42:12,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252261717] [2024-10-24 00:42:12,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:42:12,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:42:12,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:12,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:42:12,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:42:12,197 INFO L87 Difference]: Start difference. First operand 641 states and 1078 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-24 00:42:13,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:13,376 INFO L93 Difference]: Finished difference Result 1657 states and 2843 transitions. [2024-10-24 00:42:13,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:42:13,377 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 126 [2024-10-24 00:42:13,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:13,385 INFO L225 Difference]: With dead ends: 1657 [2024-10-24 00:42:13,386 INFO L226 Difference]: Without dead ends: 1076 [2024-10-24 00:42:13,389 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:42:13,389 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 1032 mSDsluCounter, 576 mSDsCounter, 0 mSdLazyCounter, 1129 mSolverCounterSat, 364 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1047 SdHoareTripleChecker+Valid, 755 SdHoareTripleChecker+Invalid, 1493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 364 IncrementalHoareTripleChecker+Valid, 1129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:13,389 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1047 Valid, 755 Invalid, 1493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [364 Valid, 1129 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 00:42:13,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1076 states. [2024-10-24 00:42:13,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1076 to 953. [2024-10-24 00:42:13,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 953 states, 747 states have (on average 1.64524765729585) internal successors, (1229), 754 states have internal predecessors, (1229), 184 states have call successors, (184), 17 states have call predecessors, (184), 21 states have return successors, (215), 183 states have call predecessors, (215), 183 states have call successors, (215) [2024-10-24 00:42:13,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 953 states to 953 states and 1628 transitions. [2024-10-24 00:42:13,436 INFO L78 Accepts]: Start accepts. Automaton has 953 states and 1628 transitions. Word has length 126 [2024-10-24 00:42:13,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:13,437 INFO L471 AbstractCegarLoop]: Abstraction has 953 states and 1628 transitions. [2024-10-24 00:42:13,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-24 00:42:13,437 INFO L276 IsEmpty]: Start isEmpty. Operand 953 states and 1628 transitions. [2024-10-24 00:42:13,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-10-24 00:42:13,442 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:13,442 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:42:13,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 00:42:13,442 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:13,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:13,443 INFO L85 PathProgramCache]: Analyzing trace with hash 746675250, now seen corresponding path program 1 times [2024-10-24 00:42:13,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:13,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970740657] [2024-10-24 00:42:13,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:13,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:13,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:13,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:13,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:13,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:13,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:13,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:13,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:13,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:42:13,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:13,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:42:13,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:13,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:42:13,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:13,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 00:42:13,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:13,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 00:42:13,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:13,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-24 00:42:13,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:13,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 00:42:13,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:13,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-24 00:42:13,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:13,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 00:42:13,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:13,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 00:42:13,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:13,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 00:42:13,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:13,592 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-10-24 00:42:13,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:13,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970740657] [2024-10-24 00:42:13,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970740657] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:42:13,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:42:13,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:42:13,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483678070] [2024-10-24 00:42:13,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:42:13,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:42:13,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:13,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:42:13,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:42:13,595 INFO L87 Difference]: Start difference. First operand 953 states and 1628 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-24 00:42:14,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:14,722 INFO L93 Difference]: Finished difference Result 2406 states and 4161 transitions. [2024-10-24 00:42:14,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:42:14,723 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 127 [2024-10-24 00:42:14,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:14,732 INFO L225 Difference]: With dead ends: 2406 [2024-10-24 00:42:14,732 INFO L226 Difference]: Without dead ends: 1563 [2024-10-24 00:42:14,736 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:42:14,737 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 984 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 1161 mSolverCounterSat, 363 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 999 SdHoareTripleChecker+Valid, 723 SdHoareTripleChecker+Invalid, 1524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 363 IncrementalHoareTripleChecker+Valid, 1161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:14,737 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [999 Valid, 723 Invalid, 1524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [363 Valid, 1161 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 00:42:14,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1563 states. [2024-10-24 00:42:14,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1563 to 1440. [2024-10-24 00:42:14,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1440 states, 1139 states have (on average 1.649692712906058) internal successors, (1879), 1146 states have internal predecessors, (1879), 279 states have call successors, (279), 17 states have call predecessors, (279), 21 states have return successors, (310), 278 states have call predecessors, (310), 278 states have call successors, (310) [2024-10-24 00:42:14,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1440 states to 1440 states and 2468 transitions. [2024-10-24 00:42:14,809 INFO L78 Accepts]: Start accepts. Automaton has 1440 states and 2468 transitions. Word has length 127 [2024-10-24 00:42:14,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:14,810 INFO L471 AbstractCegarLoop]: Abstraction has 1440 states and 2468 transitions. [2024-10-24 00:42:14,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-24 00:42:14,810 INFO L276 IsEmpty]: Start isEmpty. Operand 1440 states and 2468 transitions. [2024-10-24 00:42:14,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-10-24 00:42:14,818 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:14,818 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:42:14,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 00:42:14,818 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:14,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:14,819 INFO L85 PathProgramCache]: Analyzing trace with hash 497833757, now seen corresponding path program 1 times [2024-10-24 00:42:14,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:14,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894995422] [2024-10-24 00:42:14,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:14,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:14,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:14,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:14,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:14,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:14,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:14,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:14,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:14,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:42:14,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:14,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:42:14,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:14,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:42:14,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:14,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-24 00:42:14,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:14,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 00:42:14,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:14,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 00:42:14,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:14,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 00:42:14,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:14,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 00:42:14,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:14,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 00:42:14,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:14,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-24 00:42:14,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:14,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 00:42:14,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:14,972 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-10-24 00:42:14,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:14,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894995422] [2024-10-24 00:42:14,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894995422] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:42:14,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:42:14,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:42:14,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433768085] [2024-10-24 00:42:14,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:42:14,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:42:14,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:14,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:42:14,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:42:14,977 INFO L87 Difference]: Start difference. First operand 1440 states and 2468 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-24 00:42:15,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:15,980 INFO L93 Difference]: Finished difference Result 3508 states and 6120 transitions. [2024-10-24 00:42:15,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:42:15,981 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 128 [2024-10-24 00:42:15,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:15,994 INFO L225 Difference]: With dead ends: 3508 [2024-10-24 00:42:15,994 INFO L226 Difference]: Without dead ends: 2298 [2024-10-24 00:42:15,999 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:42:16,000 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 1009 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 1143 mSolverCounterSat, 354 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1024 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 1497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 354 IncrementalHoareTripleChecker+Valid, 1143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:16,000 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1024 Valid, 708 Invalid, 1497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [354 Valid, 1143 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 00:42:16,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2298 states. [2024-10-24 00:42:16,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2298 to 2175. [2024-10-24 00:42:16,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2175 states, 1751 states have (on average 1.653912050256996) internal successors, (2896), 1758 states have internal predecessors, (2896), 402 states have call successors, (402), 17 states have call predecessors, (402), 21 states have return successors, (449), 401 states have call predecessors, (449), 401 states have call successors, (449) [2024-10-24 00:42:16,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2175 states to 2175 states and 3747 transitions. [2024-10-24 00:42:16,128 INFO L78 Accepts]: Start accepts. Automaton has 2175 states and 3747 transitions. Word has length 128 [2024-10-24 00:42:16,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:16,129 INFO L471 AbstractCegarLoop]: Abstraction has 2175 states and 3747 transitions. [2024-10-24 00:42:16,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-24 00:42:16,129 INFO L276 IsEmpty]: Start isEmpty. Operand 2175 states and 3747 transitions. [2024-10-24 00:42:16,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-10-24 00:42:16,140 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:16,140 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:42:16,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 00:42:16,140 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:16,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:16,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1538316079, now seen corresponding path program 1 times [2024-10-24 00:42:16,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:16,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240345135] [2024-10-24 00:42:16,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:16,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:16,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:16,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:16,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:16,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:16,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:16,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:16,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:16,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:42:16,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:16,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:42:16,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:16,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:42:16,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:16,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-24 00:42:16,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:16,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 00:42:16,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:16,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 00:42:16,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:16,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 00:42:16,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:16,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 00:42:16,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:16,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-24 00:42:16,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:16,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-24 00:42:16,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:16,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 00:42:16,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:16,247 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-10-24 00:42:16,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:16,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240345135] [2024-10-24 00:42:16,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240345135] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:42:16,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:42:16,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:42:16,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531548131] [2024-10-24 00:42:16,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:42:16,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:42:16,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:16,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:42:16,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:42:16,248 INFO L87 Difference]: Start difference. First operand 2175 states and 3747 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-24 00:42:17,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:17,337 INFO L93 Difference]: Finished difference Result 5218 states and 9170 transitions. [2024-10-24 00:42:17,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:42:17,337 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 129 [2024-10-24 00:42:17,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:17,355 INFO L225 Difference]: With dead ends: 5218 [2024-10-24 00:42:17,355 INFO L226 Difference]: Without dead ends: 3470 [2024-10-24 00:42:17,361 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:42:17,362 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 973 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 1137 mSolverCounterSat, 363 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 988 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 1500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 363 IncrementalHoareTripleChecker+Valid, 1137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:17,362 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [988 Valid, 708 Invalid, 1500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [363 Valid, 1137 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 00:42:17,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3470 states. [2024-10-24 00:42:17,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3470 to 3347. [2024-10-24 00:42:17,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3347 states, 2744 states have (on average 1.6567055393586005) internal successors, (4546), 2751 states have internal predecessors, (4546), 581 states have call successors, (581), 17 states have call predecessors, (581), 21 states have return successors, (654), 580 states have call predecessors, (654), 580 states have call successors, (654) [2024-10-24 00:42:17,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3347 states to 3347 states and 5781 transitions. [2024-10-24 00:42:17,511 INFO L78 Accepts]: Start accepts. Automaton has 3347 states and 5781 transitions. Word has length 129 [2024-10-24 00:42:17,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:17,511 INFO L471 AbstractCegarLoop]: Abstraction has 3347 states and 5781 transitions. [2024-10-24 00:42:17,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-24 00:42:17,512 INFO L276 IsEmpty]: Start isEmpty. Operand 3347 states and 5781 transitions. [2024-10-24 00:42:17,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-10-24 00:42:17,526 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:17,526 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:42:17,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 00:42:17,526 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:17,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:17,527 INFO L85 PathProgramCache]: Analyzing trace with hash 820590081, now seen corresponding path program 1 times [2024-10-24 00:42:17,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:17,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297758917] [2024-10-24 00:42:17,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:17,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:17,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:17,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:17,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:17,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:17,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:17,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:17,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:17,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:42:17,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:17,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:42:17,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:17,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:42:17,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:17,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-24 00:42:17,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:17,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-24 00:42:17,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:17,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 00:42:17,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:17,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 00:42:17,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:17,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-24 00:42:17,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:17,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 00:42:17,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:17,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 00:42:17,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:17,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 00:42:17,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:17,640 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-10-24 00:42:17,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:17,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297758917] [2024-10-24 00:42:17,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297758917] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:42:17,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:42:17,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:42:17,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425021383] [2024-10-24 00:42:17,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:42:17,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:42:17,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:17,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:42:17,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:42:17,642 INFO L87 Difference]: Start difference. First operand 3347 states and 5781 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-24 00:42:18,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:18,853 INFO L93 Difference]: Finished difference Result 8073 states and 14224 transitions. [2024-10-24 00:42:18,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:42:18,853 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 130 [2024-10-24 00:42:18,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:18,887 INFO L225 Difference]: With dead ends: 8073 [2024-10-24 00:42:18,887 INFO L226 Difference]: Without dead ends: 5440 [2024-10-24 00:42:18,899 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:42:18,900 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 1026 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 1116 mSolverCounterSat, 393 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1041 SdHoareTripleChecker+Valid, 734 SdHoareTripleChecker+Invalid, 1509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 393 IncrementalHoareTripleChecker+Valid, 1116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:18,900 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1041 Valid, 734 Invalid, 1509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [393 Valid, 1116 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 00:42:18,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5440 states. [2024-10-24 00:42:19,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5440 to 5317. [2024-10-24 00:42:19,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5317 states, 4338 states have (on average 1.6452282157676348) internal successors, (7137), 4345 states have internal predecessors, (7137), 957 states have call successors, (957), 17 states have call predecessors, (957), 21 states have return successors, (1074), 956 states have call predecessors, (1074), 956 states have call successors, (1074) [2024-10-24 00:42:19,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5317 states to 5317 states and 9168 transitions. [2024-10-24 00:42:19,274 INFO L78 Accepts]: Start accepts. Automaton has 5317 states and 9168 transitions. Word has length 130 [2024-10-24 00:42:19,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:19,274 INFO L471 AbstractCegarLoop]: Abstraction has 5317 states and 9168 transitions. [2024-10-24 00:42:19,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-24 00:42:19,275 INFO L276 IsEmpty]: Start isEmpty. Operand 5317 states and 9168 transitions. [2024-10-24 00:42:19,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-24 00:42:19,297 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:19,298 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:42:19,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 00:42:19,298 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:19,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:19,298 INFO L85 PathProgramCache]: Analyzing trace with hash -280655379, now seen corresponding path program 1 times [2024-10-24 00:42:19,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:19,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572213985] [2024-10-24 00:42:19,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:19,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:19,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:19,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:19,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:19,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:19,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:19,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:19,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:19,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:42:19,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:19,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:42:19,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:19,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:42:19,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:19,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-24 00:42:19,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:19,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-24 00:42:19,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:19,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 00:42:19,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:19,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 00:42:19,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:19,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 00:42:19,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:19,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 00:42:19,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:19,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 00:42:19,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:19,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 00:42:19,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:19,418 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-10-24 00:42:19,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:19,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572213985] [2024-10-24 00:42:19,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572213985] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:42:19,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:42:19,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:42:19,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833992494] [2024-10-24 00:42:19,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:42:19,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:42:19,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:19,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:42:19,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:42:19,423 INFO L87 Difference]: Start difference. First operand 5317 states and 9168 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-24 00:42:20,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:20,719 INFO L93 Difference]: Finished difference Result 13210 states and 23245 transitions. [2024-10-24 00:42:20,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:42:20,720 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 131 [2024-10-24 00:42:20,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:20,766 INFO L225 Difference]: With dead ends: 13210 [2024-10-24 00:42:20,766 INFO L226 Difference]: Without dead ends: 8973 [2024-10-24 00:42:20,782 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:42:20,783 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 944 mSDsluCounter, 549 mSDsCounter, 0 mSdLazyCounter, 1218 mSolverCounterSat, 355 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 959 SdHoareTripleChecker+Valid, 716 SdHoareTripleChecker+Invalid, 1573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 355 IncrementalHoareTripleChecker+Valid, 1218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:20,783 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [959 Valid, 716 Invalid, 1573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [355 Valid, 1218 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 00:42:20,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8973 states. [2024-10-24 00:42:21,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8973 to 8850. [2024-10-24 00:42:21,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8850 states, 7265 states have (on average 1.6425326909841707) internal successors, (11933), 7272 states have internal predecessors, (11933), 1563 states have call successors, (1563), 17 states have call predecessors, (1563), 21 states have return successors, (1758), 1562 states have call predecessors, (1758), 1562 states have call successors, (1758) [2024-10-24 00:42:21,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8850 states to 8850 states and 15254 transitions. [2024-10-24 00:42:21,224 INFO L78 Accepts]: Start accepts. Automaton has 8850 states and 15254 transitions. Word has length 131 [2024-10-24 00:42:21,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:21,225 INFO L471 AbstractCegarLoop]: Abstraction has 8850 states and 15254 transitions. [2024-10-24 00:42:21,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-24 00:42:21,226 INFO L276 IsEmpty]: Start isEmpty. Operand 8850 states and 15254 transitions. [2024-10-24 00:42:21,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-10-24 00:42:21,254 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:21,254 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:42:21,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 00:42:21,254 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:21,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:21,255 INFO L85 PathProgramCache]: Analyzing trace with hash 125008755, now seen corresponding path program 1 times [2024-10-24 00:42:21,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:21,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010238236] [2024-10-24 00:42:21,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:21,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:21,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:21,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:21,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:21,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:21,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:21,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:21,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:21,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:42:21,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:21,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:42:21,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:21,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:42:21,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:21,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 00:42:21,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:21,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-24 00:42:21,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:21,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 00:42:21,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:21,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 00:42:21,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:21,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-24 00:42:21,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:21,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 00:42:21,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:21,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 00:42:21,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:21,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 00:42:21,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:21,371 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-10-24 00:42:21,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:21,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010238236] [2024-10-24 00:42:21,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010238236] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:42:21,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:42:21,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:42:21,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234267474] [2024-10-24 00:42:21,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:42:21,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:42:21,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:21,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:42:21,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:42:21,374 INFO L87 Difference]: Start difference. First operand 8850 states and 15254 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-24 00:42:22,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:22,667 INFO L93 Difference]: Finished difference Result 22982 states and 40379 transitions. [2024-10-24 00:42:22,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:42:22,668 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 132 [2024-10-24 00:42:22,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:22,729 INFO L225 Difference]: With dead ends: 22982 [2024-10-24 00:42:22,729 INFO L226 Difference]: Without dead ends: 15645 [2024-10-24 00:42:22,759 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:42:22,760 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 981 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 1174 mSolverCounterSat, 371 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 996 SdHoareTripleChecker+Valid, 760 SdHoareTripleChecker+Invalid, 1545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 371 IncrementalHoareTripleChecker+Valid, 1174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:22,760 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [996 Valid, 760 Invalid, 1545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [371 Valid, 1174 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 00:42:22,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15645 states. [2024-10-24 00:42:23,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15645 to 15522. [2024-10-24 00:42:23,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15522 states, 12734 states have (on average 1.6329511543898225) internal successors, (20794), 12741 states have internal predecessors, (20794), 2766 states have call successors, (2766), 17 states have call predecessors, (2766), 21 states have return successors, (3105), 2765 states have call predecessors, (3105), 2765 states have call successors, (3105) [2024-10-24 00:42:23,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15522 states to 15522 states and 26665 transitions. [2024-10-24 00:42:23,375 INFO L78 Accepts]: Start accepts. Automaton has 15522 states and 26665 transitions. Word has length 132 [2024-10-24 00:42:23,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:23,375 INFO L471 AbstractCegarLoop]: Abstraction has 15522 states and 26665 transitions. [2024-10-24 00:42:23,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-24 00:42:23,375 INFO L276 IsEmpty]: Start isEmpty. Operand 15522 states and 26665 transitions. [2024-10-24 00:42:23,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-10-24 00:42:23,509 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:23,509 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:42:23,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-24 00:42:23,510 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:23,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:23,510 INFO L85 PathProgramCache]: Analyzing trace with hash 38904172, now seen corresponding path program 1 times [2024-10-24 00:42:23,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:23,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925318917] [2024-10-24 00:42:23,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:23,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:23,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:23,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:23,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:23,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:23,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:23,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:23,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:23,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:42:23,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:23,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:42:23,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:23,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:42:23,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:23,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 00:42:23,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:23,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 00:42:23,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:23,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-24 00:42:23,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:23,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-24 00:42:23,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:23,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 00:42:23,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:23,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 00:42:23,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:23,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-24 00:42:23,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:23,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 00:42:23,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:23,619 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-10-24 00:42:23,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:23,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925318917] [2024-10-24 00:42:23,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925318917] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:42:23,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:42:23,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:42:23,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124806549] [2024-10-24 00:42:23,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:42:23,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:42:23,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:23,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:42:23,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:42:23,621 INFO L87 Difference]: Start difference. First operand 15522 states and 26665 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-24 00:42:25,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:25,047 INFO L93 Difference]: Finished difference Result 41149 states and 72179 transitions. [2024-10-24 00:42:25,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:42:25,048 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 133 [2024-10-24 00:42:25,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:25,173 INFO L225 Difference]: With dead ends: 41149 [2024-10-24 00:42:25,173 INFO L226 Difference]: Without dead ends: 27760 [2024-10-24 00:42:25,225 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:42:25,226 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 974 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 1140 mSolverCounterSat, 370 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 989 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 1510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 370 IncrementalHoareTripleChecker+Valid, 1140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:25,226 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [989 Valid, 709 Invalid, 1510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [370 Valid, 1140 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 00:42:25,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27760 states. [2024-10-24 00:42:26,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27760 to 27637. [2024-10-24 00:42:26,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27637 states, 22810 states have (on average 1.6290223586146426) internal successors, (37158), 22817 states have internal predecessors, (37158), 4805 states have call successors, (4805), 17 states have call predecessors, (4805), 21 states have return successors, (5418), 4804 states have call predecessors, (5418), 4804 states have call successors, (5418) [2024-10-24 00:42:26,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27637 states to 27637 states and 47381 transitions. [2024-10-24 00:42:26,685 INFO L78 Accepts]: Start accepts. Automaton has 27637 states and 47381 transitions. Word has length 133 [2024-10-24 00:42:26,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:26,685 INFO L471 AbstractCegarLoop]: Abstraction has 27637 states and 47381 transitions. [2024-10-24 00:42:26,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-24 00:42:26,685 INFO L276 IsEmpty]: Start isEmpty. Operand 27637 states and 47381 transitions. [2024-10-24 00:42:26,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-10-24 00:42:26,728 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:26,728 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:42:26,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-24 00:42:26,729 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:26,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:26,729 INFO L85 PathProgramCache]: Analyzing trace with hash -2111878415, now seen corresponding path program 1 times [2024-10-24 00:42:26,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:26,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490406787] [2024-10-24 00:42:26,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:26,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:26,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:26,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:26,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:26,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:26,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:26,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:26,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:26,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:42:26,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:26,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:42:26,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:26,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:42:26,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:26,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 00:42:26,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:26,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 00:42:26,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:26,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-24 00:42:26,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:26,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 00:42:26,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:26,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 00:42:26,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:26,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-24 00:42:26,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:26,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-24 00:42:26,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:26,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 00:42:26,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:26,848 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-10-24 00:42:26,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:26,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490406787] [2024-10-24 00:42:26,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490406787] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:42:26,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:42:26,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:42:26,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482681025] [2024-10-24 00:42:26,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:42:26,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:42:26,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:26,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:42:26,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:42:26,849 INFO L87 Difference]: Start difference. First operand 27637 states and 47381 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-24 00:42:29,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:29,315 INFO L93 Difference]: Finished difference Result 75341 states and 131368 transitions. [2024-10-24 00:42:29,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:42:29,316 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 134 [2024-10-24 00:42:29,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:29,509 INFO L225 Difference]: With dead ends: 75341 [2024-10-24 00:42:29,510 INFO L226 Difference]: Without dead ends: 50584 [2024-10-24 00:42:29,579 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:42:29,580 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 935 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 1194 mSolverCounterSat, 349 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 950 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 1543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 349 IncrementalHoareTripleChecker+Valid, 1194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:29,580 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [950 Valid, 715 Invalid, 1543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [349 Valid, 1194 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 00:42:29,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50584 states. [2024-10-24 00:42:31,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50584 to 50461. [2024-10-24 00:42:31,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50461 states, 41919 states have (on average 1.623893699754288) internal successors, (68072), 41926 states have internal predecessors, (68072), 8520 states have call successors, (8520), 17 states have call predecessors, (8520), 21 states have return successors, (9665), 8519 states have call predecessors, (9665), 8519 states have call successors, (9665) [2024-10-24 00:42:31,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50461 states to 50461 states and 86257 transitions. [2024-10-24 00:42:32,022 INFO L78 Accepts]: Start accepts. Automaton has 50461 states and 86257 transitions. Word has length 134 [2024-10-24 00:42:32,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:32,023 INFO L471 AbstractCegarLoop]: Abstraction has 50461 states and 86257 transitions. [2024-10-24 00:42:32,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-24 00:42:32,023 INFO L276 IsEmpty]: Start isEmpty. Operand 50461 states and 86257 transitions. [2024-10-24 00:42:32,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-10-24 00:42:32,088 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:32,088 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:42:32,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-24 00:42:32,089 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:32,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:32,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1635604564, now seen corresponding path program 1 times [2024-10-24 00:42:32,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:32,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175233642] [2024-10-24 00:42:32,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:32,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:32,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:32,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:32,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:32,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:32,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:32,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:32,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:32,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:42:32,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:32,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:42:32,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:32,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:42:32,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:32,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-24 00:42:32,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:32,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-24 00:42:32,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:32,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-24 00:42:32,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:32,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 00:42:32,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:32,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 00:42:32,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:32,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-24 00:42:32,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:32,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-24 00:42:32,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:32,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 00:42:32,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:32,218 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-10-24 00:42:32,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:32,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175233642] [2024-10-24 00:42:32,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175233642] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:42:32,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:42:32,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:42:32,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58522949] [2024-10-24 00:42:32,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:42:32,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:42:32,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:32,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:42:32,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:42:32,220 INFO L87 Difference]: Start difference. First operand 50461 states and 86257 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-24 00:42:35,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:35,007 INFO L93 Difference]: Finished difference Result 94088 states and 164531 transitions. [2024-10-24 00:42:35,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:42:35,140 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 135 [2024-10-24 00:42:35,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:35,481 INFO L225 Difference]: With dead ends: 94088 [2024-10-24 00:42:35,481 INFO L226 Difference]: Without dead ends: 93964 [2024-10-24 00:42:35,513 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:42:35,514 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 969 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 1146 mSolverCounterSat, 358 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 983 SdHoareTripleChecker+Valid, 724 SdHoareTripleChecker+Invalid, 1504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 358 IncrementalHoareTripleChecker+Valid, 1146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:35,515 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [983 Valid, 724 Invalid, 1504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [358 Valid, 1146 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 00:42:35,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93964 states. [2024-10-24 00:42:38,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93964 to 93841. [2024-10-24 00:42:38,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93841 states, 78500 states have (on average 1.6173630573248408) internal successors, (126963), 78507 states have internal predecessors, (126963), 15319 states have call successors, (15319), 17 states have call predecessors, (15319), 21 states have return successors, (17510), 15318 states have call predecessors, (17510), 15318 states have call successors, (17510) [2024-10-24 00:42:38,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93841 states to 93841 states and 159792 transitions. [2024-10-24 00:42:38,978 INFO L78 Accepts]: Start accepts. Automaton has 93841 states and 159792 transitions. Word has length 135 [2024-10-24 00:42:38,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:38,986 INFO L471 AbstractCegarLoop]: Abstraction has 93841 states and 159792 transitions. [2024-10-24 00:42:38,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-24 00:42:38,987 INFO L276 IsEmpty]: Start isEmpty. Operand 93841 states and 159792 transitions. [2024-10-24 00:42:39,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-24 00:42:39,154 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:39,154 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:42:39,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-24 00:42:39,154 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:39,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:39,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1952871438, now seen corresponding path program 1 times [2024-10-24 00:42:39,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:39,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128196193] [2024-10-24 00:42:39,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:39,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:39,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:39,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:39,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:39,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:39,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:39,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:39,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:39,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:42:39,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:39,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:42:39,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:39,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:42:39,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:39,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-24 00:42:39,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:39,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 00:42:39,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:39,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 00:42:39,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:39,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-24 00:42:39,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:39,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-24 00:42:39,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:39,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 00:42:39,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:39,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 00:42:39,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:39,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 00:42:39,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:39,593 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-10-24 00:42:39,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:39,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128196193] [2024-10-24 00:42:39,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128196193] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:42:39,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [208262228] [2024-10-24 00:42:39,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:39,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:42:39,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:42:39,602 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 00:42:39,604 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-24 00:42:39,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:39,901 INFO L255 TraceCheckSpWp]: Trace formula consists of 1067 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-10-24 00:42:39,905 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:42:40,270 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-24 00:42:40,270 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 00:42:40,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [208262228] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:42:40,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 00:42:40,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [16] total 26 [2024-10-24 00:42:40,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526295862] [2024-10-24 00:42:40,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:42:40,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 00:42:40,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:40,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 00:42:40,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2024-10-24 00:42:40,272 INFO L87 Difference]: Start difference. First operand 93841 states and 159792 transitions. Second operand has 12 states, 11 states have (on average 9.090909090909092) internal successors, (100), 9 states have internal predecessors, (100), 5 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (14), 6 states have call predecessors, (14), 5 states have call successors, (14) [2024-10-24 00:42:45,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:45,266 INFO L93 Difference]: Finished difference Result 186999 states and 323923 transitions. [2024-10-24 00:42:45,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 00:42:45,267 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.090909090909092) internal successors, (100), 9 states have internal predecessors, (100), 5 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (14), 6 states have call predecessors, (14), 5 states have call successors, (14) Word has length 136 [2024-10-24 00:42:45,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:46,202 INFO L225 Difference]: With dead ends: 186999 [2024-10-24 00:42:46,203 INFO L226 Difference]: Without dead ends: 186880 [2024-10-24 00:42:46,303 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=161, Invalid=1171, Unknown=0, NotChecked=0, Total=1332 [2024-10-24 00:42:46,304 INFO L432 NwaCegarLoop]: 520 mSDtfsCounter, 1032 mSDsluCounter, 3175 mSDsCounter, 0 mSdLazyCounter, 1153 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1035 SdHoareTripleChecker+Valid, 3695 SdHoareTripleChecker+Invalid, 1328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 1153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:46,305 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1035 Valid, 3695 Invalid, 1328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 1153 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 00:42:46,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186880 states. [2024-10-24 00:42:52,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186880 to 186852. [2024-10-24 00:42:52,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186852 states, 156375 states have (on average 1.618282973621103) internal successors, (253059), 156277 states have internal predecessors, (253059), 30426 states have call successors, (30426), 44 states have call predecessors, (30426), 50 states have return successors, (38080), 30536 states have call predecessors, (38080), 30423 states have call successors, (38080) [2024-10-24 00:42:53,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186852 states to 186852 states and 321565 transitions. [2024-10-24 00:42:53,657 INFO L78 Accepts]: Start accepts. Automaton has 186852 states and 321565 transitions. Word has length 136 [2024-10-24 00:42:53,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:53,658 INFO L471 AbstractCegarLoop]: Abstraction has 186852 states and 321565 transitions. [2024-10-24 00:42:53,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.090909090909092) internal successors, (100), 9 states have internal predecessors, (100), 5 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (14), 6 states have call predecessors, (14), 5 states have call successors, (14) [2024-10-24 00:42:53,658 INFO L276 IsEmpty]: Start isEmpty. Operand 186852 states and 321565 transitions. [2024-10-24 00:42:53,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-10-24 00:42:53,783 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:53,783 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:42:53,797 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-24 00:42:53,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:42:53,985 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:53,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:53,985 INFO L85 PathProgramCache]: Analyzing trace with hash 306675224, now seen corresponding path program 1 times [2024-10-24 00:42:53,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:53,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865102661] [2024-10-24 00:42:53,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:53,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:54,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:54,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:54,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:54,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:54,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:54,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:54,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:54,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:42:54,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:54,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:42:54,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:54,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:42:54,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:54,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-24 00:42:54,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:54,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 00:42:54,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:54,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 00:42:54,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:54,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 00:42:54,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:54,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 00:42:54,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:54,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 00:42:54,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:54,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 00:42:54,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:54,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 00:42:54,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:54,224 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-10-24 00:42:54,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:54,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865102661] [2024-10-24 00:42:54,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865102661] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:42:54,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [288239733] [2024-10-24 00:42:54,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:54,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:42:54,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:42:54,229 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) [2024-10-24 00:42:54,235 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-24 00:42:54,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:54,529 INFO L255 TraceCheckSpWp]: Trace formula consists of 1068 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 00:42:54,532 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:42:54,563 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-24 00:42:54,563 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 00:42:54,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [288239733] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:42:54,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 00:42:54,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-10-24 00:42:54,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240811333] [2024-10-24 00:42:54,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:42:54,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 00:42:54,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:54,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 00:42:54,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-24 00:42:54,565 INFO L87 Difference]: Start difference. First operand 186852 states and 321565 transitions. Second operand has 5 states, 4 states have (on average 23.5) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-24 00:42:59,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:59,027 INFO L93 Difference]: Finished difference Result 187096 states and 321916 transitions. [2024-10-24 00:42:59,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 00:42:59,028 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 23.5) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 137 [2024-10-24 00:42:59,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:59,923 INFO L225 Difference]: With dead ends: 187096 [2024-10-24 00:42:59,923 INFO L226 Difference]: Without dead ends: 186858 [2024-10-24 00:43:00,005 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-24 00:43:00,006 INFO L432 NwaCegarLoop]: 398 mSDtfsCounter, 0 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1582 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 00:43:00,006 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1582 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 00:43:00,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186858 states.