./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_product19.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_product19.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 9deea958caebdff7c89a17deb67516eff149386872824a7682accca78686b765 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 00:42:11,614 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 00:42:11,665 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 00:42:11,671 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 00:42:11,672 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 00:42:11,713 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 00:42:11,714 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 00:42:11,716 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 00:42:11,716 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 00:42:11,717 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 00:42:11,718 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 00:42:11,719 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 00:42:11,719 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 00:42:11,720 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 00:42:11,720 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 00:42:11,723 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 00:42:11,723 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 00:42:11,724 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 00:42:11,724 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 00:42:11,724 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 00:42:11,724 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 00:42:11,725 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 00:42:11,725 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 00:42:11,725 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 00:42:11,725 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 00:42:11,725 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 00:42:11,726 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 00:42:11,726 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 00:42:11,726 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 00:42:11,726 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 00:42:11,726 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 00:42:11,727 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 00:42:11,727 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 00:42:11,727 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 00:42:11,727 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 00:42:11,727 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 00:42:11,728 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 00:42:11,728 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 00:42:11,730 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 00:42:11,731 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 00:42:11,731 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 00:42:11,731 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 00:42:11,731 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9deea958caebdff7c89a17deb67516eff149386872824a7682accca78686b765 [2024-10-24 00:42:12,004 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 00:42:12,029 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 00:42:12,032 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 00:42:12,033 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 00:42:12,034 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 00:42:12,035 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec0_product19.cil.c [2024-10-24 00:42:13,428 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 00:42:13,767 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 00:42:13,768 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec0_product19.cil.c [2024-10-24 00:42:13,786 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69f3f8fb6/561313573e464691bbe4ced54ea1ddb1/FLAG2828f257b [2024-10-24 00:42:13,798 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69f3f8fb6/561313573e464691bbe4ced54ea1ddb1 [2024-10-24 00:42:13,800 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 00:42:13,801 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 00:42:13,802 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 00:42:13,803 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 00:42:13,808 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 00:42:13,809 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:42:13" (1/1) ... [2024-10-24 00:42:13,810 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5369c4bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:42:13, skipping insertion in model container [2024-10-24 00:42:13,810 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:42:13" (1/1) ... [2024-10-24 00:42:13,881 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 00:42:14,324 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_product19.cil.c[39319,39332] [2024-10-24 00:42:14,425 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 00:42:14,438 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 00:42:14,448 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [48] [2024-10-24 00:42:14,451 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [167] [2024-10-24 00:42:14,451 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [467] [2024-10-24 00:42:14,451 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [505] [2024-10-24 00:42:14,452 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [797] [2024-10-24 00:42:14,452 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1864] [2024-10-24 00:42:14,452 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1873] [2024-10-24 00:42:14,452 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1890] [2024-10-24 00:42:14,452 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptForward_spec.i","") [2106] [2024-10-24 00:42:14,452 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2125] [2024-10-24 00:42:14,453 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2491] [2024-10-24 00:42:14,522 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_product19.cil.c[39319,39332] [2024-10-24 00:42:14,542 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 00:42:14,578 INFO L204 MainTranslator]: Completed translation [2024-10-24 00:42:14,579 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:42:14 WrapperNode [2024-10-24 00:42:14,579 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 00:42:14,580 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 00:42:14,581 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 00:42:14,581 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 00:42:14,588 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:42:14" (1/1) ... [2024-10-24 00:42:14,613 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:42:14" (1/1) ... [2024-10-24 00:42:14,683 INFO L138 Inliner]: procedures = 127, calls = 184, calls flagged for inlining = 60, calls inlined = 55, statements flattened = 1002 [2024-10-24 00:42:14,684 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 00:42:14,684 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 00:42:14,684 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 00:42:14,684 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 00:42:14,699 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:42:14" (1/1) ... [2024-10-24 00:42:14,700 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:42:14" (1/1) ... [2024-10-24 00:42:14,710 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:42:14" (1/1) ... [2024-10-24 00:42:14,740 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 00:42:14,741 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:42:14" (1/1) ... [2024-10-24 00:42:14,741 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:42:14" (1/1) ... [2024-10-24 00:42:14,761 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:42:14" (1/1) ... [2024-10-24 00:42:14,773 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:42:14" (1/1) ... [2024-10-24 00:42:14,781 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:42:14" (1/1) ... [2024-10-24 00:42:14,785 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:42:14" (1/1) ... [2024-10-24 00:42:14,793 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 00:42:14,794 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 00:42:14,794 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 00:42:14,794 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 00:42:14,795 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:42:14" (1/1) ... [2024-10-24 00:42:14,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 00:42:14,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:42:14,838 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 00:42:14,840 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 00:42:14,894 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-10-24 00:42:14,894 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-10-24 00:42:14,894 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-10-24 00:42:14,894 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-10-24 00:42:14,894 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-10-24 00:42:14,894 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-10-24 00:42:14,895 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-10-24 00:42:14,895 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-10-24 00:42:14,895 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-10-24 00:42:14,895 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-10-24 00:42:14,895 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-10-24 00:42:14,895 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-10-24 00:42:14,895 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-10-24 00:42:14,895 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-10-24 00:42:14,896 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-10-24 00:42:14,896 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-10-24 00:42:14,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 00:42:14,896 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-10-24 00:42:14,896 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-10-24 00:42:14,896 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-10-24 00:42:14,896 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-10-24 00:42:14,896 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-10-24 00:42:14,897 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-10-24 00:42:14,897 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-10-24 00:42:14,897 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-10-24 00:42:14,897 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-10-24 00:42:14,897 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-10-24 00:42:14,897 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-10-24 00:42:14,897 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-10-24 00:42:14,897 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-10-24 00:42:14,898 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-10-24 00:42:14,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 00:42:14,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-24 00:42:14,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-24 00:42:14,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-24 00:42:14,900 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-10-24 00:42:14,900 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-10-24 00:42:14,901 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 00:42:14,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 00:42:15,164 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 00:42:15,166 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 00:42:15,915 INFO L? ?]: Removed 433 outVars from TransFormulas that were not future-live. [2024-10-24 00:42:15,916 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 00:42:15,980 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 00:42:16,001 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 00:42:16,001 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:42:16 BoogieIcfgContainer [2024-10-24 00:42:16,001 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 00:42:16,004 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 00:42:16,005 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 00:42:16,008 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 00:42:16,008 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 12:42:13" (1/3) ... [2024-10-24 00:42:16,009 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bc65a7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:42:16, skipping insertion in model container [2024-10-24 00:42:16,010 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:42:14" (2/3) ... [2024-10-24 00:42:16,011 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bc65a7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:42:16, skipping insertion in model container [2024-10-24 00:42:16,011 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:42:16" (3/3) ... [2024-10-24 00:42:16,012 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec0_product19.cil.c [2024-10-24 00:42:16,028 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 00:42:16,028 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 00:42:16,103 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 00:42:16,109 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;@5fbdd9e7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 00:42:16,109 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 00:42:16,115 INFO L276 IsEmpty]: Start isEmpty. Operand has 273 states, 213 states have (on average 1.6056338028169015) internal successors, (342), 215 states have internal predecessors, (342), 42 states have call successors, (42), 16 states have call predecessors, (42), 16 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-24 00:42:16,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-10-24 00:42:16,133 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:16,133 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:42:16,134 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:16,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:16,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1590545297, now seen corresponding path program 1 times [2024-10-24 00:42:16,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:16,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738080081] [2024-10-24 00:42:16,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:16,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:16,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:16,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:16,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:16,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:16,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:16,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:16,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:16,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 00:42:16,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:16,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 00:42:16,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:16,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 00:42:16,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:16,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 00:42:16,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:16,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 00:42:16,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:16,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-24 00:42:16,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:16,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 00:42:16,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:16,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 00:42:16,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:16,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-24 00:42:16,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:16,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 00:42:16,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:16,936 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-24 00:42:16,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:16,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738080081] [2024-10-24 00:42:16,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738080081] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:42:16,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1356703625] [2024-10-24 00:42:16,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:16,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:42:16,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:42:16,942 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 00:42:16,943 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 00:42:17,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:17,279 INFO L255 TraceCheckSpWp]: Trace formula consists of 970 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-24 00:42:17,286 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:42:17,305 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-24 00:42:17,305 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 00:42:17,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1356703625] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:42:17,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 00:42:17,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2024-10-24 00:42:17,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315233386] [2024-10-24 00:42:17,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:42:17,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 00:42:17,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:17,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 00:42:17,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 00:42:17,343 INFO L87 Difference]: Start difference. First operand has 273 states, 213 states have (on average 1.6056338028169015) internal successors, (342), 215 states have internal predecessors, (342), 42 states have call successors, (42), 16 states have call predecessors, (42), 16 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) Second operand has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:42:17,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:17,430 INFO L93 Difference]: Finished difference Result 401 states and 615 transitions. [2024-10-24 00:42:17,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 00:42:17,436 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 94 [2024-10-24 00:42:17,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:17,447 INFO L225 Difference]: With dead ends: 401 [2024-10-24 00:42:17,447 INFO L226 Difference]: Without dead ends: 270 [2024-10-24 00:42:17,451 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 116 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 00:42:17,454 INFO L432 NwaCegarLoop]: 407 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:17,455 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 407 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 00:42:17,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2024-10-24 00:42:17,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 270. [2024-10-24 00:42:17,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 211 states have (on average 1.5876777251184835) internal successors, (335), 212 states have internal predecessors, (335), 42 states have call successors, (42), 16 states have call predecessors, (42), 16 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2024-10-24 00:42:17,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 418 transitions. [2024-10-24 00:42:17,525 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 418 transitions. Word has length 94 [2024-10-24 00:42:17,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:17,526 INFO L471 AbstractCegarLoop]: Abstraction has 270 states and 418 transitions. [2024-10-24 00:42:17,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:42:17,527 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 418 transitions. [2024-10-24 00:42:17,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-24 00:42:17,536 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:17,536 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:42:17,555 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-24 00:42:17,736 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 00:42:17,737 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:17,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:17,738 INFO L85 PathProgramCache]: Analyzing trace with hash -1136047798, now seen corresponding path program 1 times [2024-10-24 00:42:17,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:17,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343103404] [2024-10-24 00:42:17,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:17,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:17,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:17,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:17,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:17,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:17,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:17,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:17,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:18,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 00:42:18,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:18,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 00:42:18,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:18,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 00:42:18,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:18,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 00:42:18,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:18,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-24 00:42:18,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:18,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 00:42:18,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:18,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 00:42:18,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:18,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 00:42:18,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:18,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-24 00:42:18,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:18,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 00:42:18,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:18,086 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-24 00:42:18,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:18,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343103404] [2024-10-24 00:42:18,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343103404] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:42:18,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1650835397] [2024-10-24 00:42:18,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:18,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:42:18,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:42:18,092 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 00:42:18,095 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 00:42:18,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:18,379 INFO L255 TraceCheckSpWp]: Trace formula consists of 971 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-24 00:42:18,383 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:42:18,413 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-24 00:42:18,416 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 00:42:18,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1650835397] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:42:18,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 00:42:18,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-10-24 00:42:18,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935313558] [2024-10-24 00:42:18,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:42:18,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 00:42:18,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:18,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 00:42:18,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-24 00:42:18,423 INFO L87 Difference]: Start difference. First operand 270 states and 418 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:42:18,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:18,504 INFO L93 Difference]: Finished difference Result 397 states and 602 transitions. [2024-10-24 00:42:18,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 00:42:18,504 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 95 [2024-10-24 00:42:18,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:18,509 INFO L225 Difference]: With dead ends: 397 [2024-10-24 00:42:18,512 INFO L226 Difference]: Without dead ends: 272 [2024-10-24 00:42:18,514 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 116 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 00:42:18,517 INFO L432 NwaCegarLoop]: 404 mSDtfsCounter, 0 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 807 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:18,518 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 807 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 00:42:18,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2024-10-24 00:42:18,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 272. [2024-10-24 00:42:18,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 213 states have (on average 1.5821596244131455) internal successors, (337), 214 states have internal predecessors, (337), 42 states have call successors, (42), 16 states have call predecessors, (42), 16 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2024-10-24 00:42:18,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 420 transitions. [2024-10-24 00:42:18,546 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 420 transitions. Word has length 95 [2024-10-24 00:42:18,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:18,547 INFO L471 AbstractCegarLoop]: Abstraction has 272 states and 420 transitions. [2024-10-24 00:42:18,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:42:18,547 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 420 transitions. [2024-10-24 00:42:18,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-10-24 00:42:18,551 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:18,551 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2024-10-24 00:42:18,570 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 00:42:18,751 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 00:42:18,752 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:18,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:18,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1482292360, now seen corresponding path program 1 times [2024-10-24 00:42:18,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:18,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223357454] [2024-10-24 00:42:18,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:18,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:18,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:18,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:18,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:18,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:18,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:18,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:18,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:18,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 00:42:18,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:18,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 00:42:18,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:18,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 00:42:18,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:18,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-24 00:42:18,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:19,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 00:42:19,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:19,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 00:42:19,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:19,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 00:42:19,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:19,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 00:42:19,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:19,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 00:42:19,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:19,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-24 00:42:19,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:19,045 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 00:42:19,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:19,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223357454] [2024-10-24 00:42:19,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223357454] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:42:19,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [368486946] [2024-10-24 00:42:19,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:19,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:42:19,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:42:19,048 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 00:42:19,068 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 00:42:19,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:19,339 INFO L255 TraceCheckSpWp]: Trace formula consists of 983 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 00:42:19,349 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:42:19,373 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-24 00:42:19,374 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 00:42:19,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [368486946] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:42:19,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 00:42:19,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-10-24 00:42:19,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376970015] [2024-10-24 00:42:19,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:42:19,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 00:42:19,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:19,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 00:42:19,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-24 00:42:19,376 INFO L87 Difference]: Start difference. First operand 272 states and 420 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:42:19,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:19,436 INFO L93 Difference]: Finished difference Result 574 states and 899 transitions. [2024-10-24 00:42:19,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 00:42:19,436 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 100 [2024-10-24 00:42:19,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:19,440 INFO L225 Difference]: With dead ends: 574 [2024-10-24 00:42:19,442 INFO L226 Difference]: Without dead ends: 324 [2024-10-24 00:42:19,443 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 121 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 00:42:19,444 INFO L432 NwaCegarLoop]: 418 mSDtfsCounter, 102 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 778 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:19,444 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 778 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 00:42:19,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2024-10-24 00:42:19,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 319. [2024-10-24 00:42:19,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 249 states have (on average 1.5943775100401607) internal successors, (397), 250 states have internal predecessors, (397), 53 states have call successors, (53), 16 states have call predecessors, (53), 16 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-10-24 00:42:19,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 502 transitions. [2024-10-24 00:42:19,482 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 502 transitions. Word has length 100 [2024-10-24 00:42:19,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:19,485 INFO L471 AbstractCegarLoop]: Abstraction has 319 states and 502 transitions. [2024-10-24 00:42:19,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:42:19,485 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 502 transitions. [2024-10-24 00:42:19,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-10-24 00:42:19,489 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:19,489 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2024-10-24 00:42:19,509 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-24 00:42:19,690 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 00:42:19,690 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:19,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:19,691 INFO L85 PathProgramCache]: Analyzing trace with hash 2021235459, now seen corresponding path program 1 times [2024-10-24 00:42:19,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:19,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358535042] [2024-10-24 00:42:19,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:19,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:19,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:19,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:19,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:19,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:19,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:19,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:19,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:19,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 00:42:19,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:19,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 00:42:19,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:19,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 00:42:19,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:19,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-24 00:42:19,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:19,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-24 00:42:19,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:19,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 00:42:19,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:19,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 00:42:19,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:19,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 00:42:19,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:19,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 00:42:19,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:19,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 00:42:19,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:19,938 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 00:42:19,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:19,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358535042] [2024-10-24 00:42:19,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358535042] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:42:19,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [224732502] [2024-10-24 00:42:19,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:19,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:42:19,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:42:19,941 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 00:42:19,943 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 00:42:20,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:20,235 INFO L255 TraceCheckSpWp]: Trace formula consists of 988 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-24 00:42:20,243 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:42:20,311 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-24 00:42:20,311 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 00:42:20,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [224732502] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:42:20,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 00:42:20,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-10-24 00:42:20,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740056696] [2024-10-24 00:42:20,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:42:20,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 00:42:20,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:20,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 00:42:20,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-24 00:42:20,314 INFO L87 Difference]: Start difference. First operand 319 states and 502 transitions. Second operand has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-24 00:42:20,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:20,436 INFO L93 Difference]: Finished difference Result 633 states and 998 transitions. [2024-10-24 00:42:20,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 00:42:20,437 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 101 [2024-10-24 00:42:20,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:20,442 INFO L225 Difference]: With dead ends: 633 [2024-10-24 00:42:20,443 INFO L226 Difference]: Without dead ends: 321 [2024-10-24 00:42:20,446 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 120 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 00:42:20,447 INFO L432 NwaCegarLoop]: 396 mSDtfsCounter, 2 mSDsluCounter, 1177 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1573 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:20,448 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1573 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 00:42:20,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2024-10-24 00:42:20,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 321. [2024-10-24 00:42:20,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 250 states have (on average 1.592) internal successors, (398), 252 states have internal predecessors, (398), 53 states have call successors, (53), 16 states have call predecessors, (53), 17 states have return successors, (54), 52 states have call predecessors, (54), 52 states have call successors, (54) [2024-10-24 00:42:20,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 505 transitions. [2024-10-24 00:42:20,477 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 505 transitions. Word has length 101 [2024-10-24 00:42:20,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:20,479 INFO L471 AbstractCegarLoop]: Abstraction has 321 states and 505 transitions. [2024-10-24 00:42:20,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-24 00:42:20,479 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 505 transitions. [2024-10-24 00:42:20,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-10-24 00:42:20,485 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:20,485 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-24 00:42:20,505 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 00:42:20,686 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 00:42:20,686 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:20,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:20,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1539525936, now seen corresponding path program 1 times [2024-10-24 00:42:20,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:20,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139748683] [2024-10-24 00:42:20,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:20,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:20,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:20,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:20,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:20,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:20,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:20,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:20,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:20,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:42:20,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:20,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-24 00:42:20,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:20,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-24 00:42:20,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:20,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 00:42:20,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:20,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-24 00:42:20,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:20,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 00:42:20,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:20,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-24 00:42:20,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:20,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-24 00:42:20,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:20,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 00:42:20,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:20,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 00:42:20,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:20,955 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-24 00:42:20,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:20,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139748683] [2024-10-24 00:42:20,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139748683] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:42:20,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1643101890] [2024-10-24 00:42:20,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:20,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:42:20,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:42:20,958 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 00:42:20,960 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 00:42:21,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:21,224 INFO L255 TraceCheckSpWp]: Trace formula consists of 989 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-24 00:42:21,228 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:42:21,285 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-24 00:42:21,285 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 00:42:21,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1643101890] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:42:21,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 00:42:21,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-10-24 00:42:21,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002070996] [2024-10-24 00:42:21,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:42:21,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 00:42:21,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:21,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 00:42:21,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-10-24 00:42:21,288 INFO L87 Difference]: Start difference. First operand 321 states and 505 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-24 00:42:21,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:21,397 INFO L93 Difference]: Finished difference Result 635 states and 1003 transitions. [2024-10-24 00:42:21,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 00:42:21,397 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 102 [2024-10-24 00:42:21,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:21,400 INFO L225 Difference]: With dead ends: 635 [2024-10-24 00:42:21,400 INFO L226 Difference]: Without dead ends: 323 [2024-10-24 00:42:21,401 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 120 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 00:42:21,402 INFO L432 NwaCegarLoop]: 394 mSDtfsCounter, 2 mSDsluCounter, 1165 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1559 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:21,403 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1559 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 00:42:21,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2024-10-24 00:42:21,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 323. [2024-10-24 00:42:21,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 251 states have (on average 1.5896414342629481) internal successors, (399), 254 states have internal predecessors, (399), 53 states have call successors, (53), 16 states have call predecessors, (53), 18 states have return successors, (59), 52 states have call predecessors, (59), 52 states have call successors, (59) [2024-10-24 00:42:21,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 511 transitions. [2024-10-24 00:42:21,424 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 511 transitions. Word has length 102 [2024-10-24 00:42:21,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:21,424 INFO L471 AbstractCegarLoop]: Abstraction has 323 states and 511 transitions. [2024-10-24 00:42:21,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-24 00:42:21,425 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 511 transitions. [2024-10-24 00:42:21,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-10-24 00:42:21,427 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:21,427 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] [2024-10-24 00:42:21,445 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-24 00:42:21,628 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 00:42:21,629 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:21,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:21,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1933786053, now seen corresponding path program 1 times [2024-10-24 00:42:21,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:21,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250426575] [2024-10-24 00:42:21,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:21,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:21,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:21,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:21,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:21,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:21,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:21,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:21,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:21,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:42:21,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:21,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:42:21,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:21,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 00:42:21,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:21,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 00:42:21,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:21,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 00:42:21,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:21,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-24 00:42:21,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:21,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 00:42:21,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:21,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-24 00:42:21,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:21,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 00:42:21,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:21,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-24 00:42:21,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:21,848 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-24 00:42:21,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:21,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250426575] [2024-10-24 00:42:21,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250426575] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:42:21,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:42:21,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 00:42:21,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146809223] [2024-10-24 00:42:21,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:42:21,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 00:42:21,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:21,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 00:42:21,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 00:42:21,851 INFO L87 Difference]: Start difference. First operand 323 states and 511 transitions. Second operand has 9 states, 8 states have (on average 7.5) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-24 00:42:23,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:23,685 INFO L93 Difference]: Finished difference Result 763 states and 1214 transitions. [2024-10-24 00:42:23,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 00:42:23,686 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.5) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 103 [2024-10-24 00:42:23,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:23,689 INFO L225 Difference]: With dead ends: 763 [2024-10-24 00:42:23,690 INFO L226 Difference]: Without dead ends: 459 [2024-10-24 00:42:23,691 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 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 00:42:23,694 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 918 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 2191 mSolverCounterSat, 272 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 919 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 2463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 272 IncrementalHoareTripleChecker+Valid, 2191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:23,694 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [919 Valid, 968 Invalid, 2463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [272 Valid, 2191 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-24 00:42:23,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2024-10-24 00:42:23,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 323. [2024-10-24 00:42:23,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 251 states have (on average 1.5896414342629481) internal successors, (399), 254 states have internal predecessors, (399), 53 states have call successors, (53), 16 states have call predecessors, (53), 18 states have return successors, (58), 52 states have call predecessors, (58), 52 states have call successors, (58) [2024-10-24 00:42:23,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 510 transitions. [2024-10-24 00:42:23,730 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 510 transitions. Word has length 103 [2024-10-24 00:42:23,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:23,730 INFO L471 AbstractCegarLoop]: Abstraction has 323 states and 510 transitions. [2024-10-24 00:42:23,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.5) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-24 00:42:23,730 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 510 transitions. [2024-10-24 00:42:23,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-10-24 00:42:23,733 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:23,734 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] [2024-10-24 00:42:23,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 00:42:23,734 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:23,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:23,735 INFO L85 PathProgramCache]: Analyzing trace with hash -372047130, now seen corresponding path program 2 times [2024-10-24 00:42:23,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:23,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789762938] [2024-10-24 00:42:23,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:23,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:23,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:23,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:23,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:23,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:23,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:23,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:23,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:23,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:42:23,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:23,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:42:23,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:23,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 00:42:23,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:23,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 00:42:23,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:23,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 00:42:23,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:23,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-24 00:42:23,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:23,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 00:42:23,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:23,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-24 00:42:23,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:23,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 00:42:23,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:23,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 00:42:23,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:23,974 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-24 00:42:23,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:23,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789762938] [2024-10-24 00:42:23,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789762938] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:42:23,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:42:23,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 00:42:23,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392315304] [2024-10-24 00:42:23,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:42:23,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 00:42:23,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:23,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 00:42:23,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 00:42:23,977 INFO L87 Difference]: Start difference. First operand 323 states and 510 transitions. Second operand has 9 states, 8 states have (on average 7.625) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-24 00:42:25,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:25,667 INFO L93 Difference]: Finished difference Result 765 states and 1217 transitions. [2024-10-24 00:42:25,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 00:42:25,673 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.625) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 104 [2024-10-24 00:42:25,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:25,676 INFO L225 Difference]: With dead ends: 765 [2024-10-24 00:42:25,677 INFO L226 Difference]: Without dead ends: 461 [2024-10-24 00:42:25,678 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 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 00:42:25,679 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 897 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 2231 mSolverCounterSat, 272 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 898 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 2503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 272 IncrementalHoareTripleChecker+Valid, 2231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:25,679 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [898 Valid, 968 Invalid, 2503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [272 Valid, 2231 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-24 00:42:25,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2024-10-24 00:42:25,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 325. [2024-10-24 00:42:25,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 252 states have (on average 1.5873015873015872) internal successors, (400), 256 states have internal predecessors, (400), 53 states have call successors, (53), 16 states have call predecessors, (53), 19 states have return successors, (60), 52 states have call predecessors, (60), 52 states have call successors, (60) [2024-10-24 00:42:25,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 513 transitions. [2024-10-24 00:42:25,724 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 513 transitions. Word has length 104 [2024-10-24 00:42:25,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:25,726 INFO L471 AbstractCegarLoop]: Abstraction has 325 states and 513 transitions. [2024-10-24 00:42:25,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.625) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-24 00:42:25,727 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 513 transitions. [2024-10-24 00:42:25,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-10-24 00:42:25,728 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:25,729 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] [2024-10-24 00:42:25,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 00:42:25,729 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:25,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:25,730 INFO L85 PathProgramCache]: Analyzing trace with hash 314580128, now seen corresponding path program 1 times [2024-10-24 00:42:25,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:25,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491781296] [2024-10-24 00:42:25,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:25,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:25,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:25,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:25,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:25,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:25,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:25,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:25,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:25,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:42:25,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:25,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:42:25,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:25,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:42:25,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:25,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 00:42:25,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:25,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-24 00:42:25,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:25,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-24 00:42:25,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:25,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 00:42:25,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:25,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 00:42:25,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:25,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 00:42:25,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:25,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-24 00:42:25,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:25,965 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-24 00:42:25,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:25,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491781296] [2024-10-24 00:42:25,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491781296] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:42:25,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:42:25,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 00:42:25,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218462243] [2024-10-24 00:42:25,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:42:25,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 00:42:25,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:25,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 00:42:25,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-10-24 00:42:25,968 INFO L87 Difference]: Start difference. First operand 325 states and 513 transitions. Second operand has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 8 states have internal predecessors, (65), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2024-10-24 00:42:28,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:28,249 INFO L93 Difference]: Finished difference Result 763 states and 1212 transitions. [2024-10-24 00:42:28,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 00:42:28,249 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 8 states have internal predecessors, (65), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 105 [2024-10-24 00:42:28,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:28,254 INFO L225 Difference]: With dead ends: 763 [2024-10-24 00:42:28,255 INFO L226 Difference]: Without dead ends: 461 [2024-10-24 00:42:28,256 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 29 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 00:42:28,257 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 915 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 3639 mSolverCounterSat, 267 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 916 SdHoareTripleChecker+Valid, 1342 SdHoareTripleChecker+Invalid, 3906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 267 IncrementalHoareTripleChecker+Valid, 3639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:28,258 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [916 Valid, 1342 Invalid, 3906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [267 Valid, 3639 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-24 00:42:28,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2024-10-24 00:42:28,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 325. [2024-10-24 00:42:28,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 252 states have (on average 1.5873015873015872) internal successors, (400), 256 states have internal predecessors, (400), 53 states have call successors, (53), 16 states have call predecessors, (53), 19 states have return successors, (59), 52 states have call predecessors, (59), 52 states have call successors, (59) [2024-10-24 00:42:28,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 512 transitions. [2024-10-24 00:42:28,284 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 512 transitions. Word has length 105 [2024-10-24 00:42:28,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:28,284 INFO L471 AbstractCegarLoop]: Abstraction has 325 states and 512 transitions. [2024-10-24 00:42:28,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 8 states have internal predecessors, (65), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2024-10-24 00:42:28,284 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 512 transitions. [2024-10-24 00:42:28,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-10-24 00:42:28,286 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:28,286 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] [2024-10-24 00:42:28,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 00:42:28,287 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:28,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:28,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1871788683, now seen corresponding path program 2 times [2024-10-24 00:42:28,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:28,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794776695] [2024-10-24 00:42:28,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:28,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:28,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:28,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:28,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:28,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:28,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:28,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:28,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:28,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:42:28,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:28,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:42:28,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:28,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:42:28,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:28,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-24 00:42:28,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:28,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-24 00:42:28,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:28,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 00:42:28,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:28,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 00:42:28,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:28,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 00:42:28,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:28,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-24 00:42:28,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:28,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 00:42:28,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:28,553 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-24 00:42:28,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:28,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794776695] [2024-10-24 00:42:28,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794776695] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:42:28,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:42:28,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 00:42:28,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756821144] [2024-10-24 00:42:28,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:42:28,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 00:42:28,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:28,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 00:42:28,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-10-24 00:42:28,556 INFO L87 Difference]: Start difference. First operand 325 states and 512 transitions. Second operand has 12 states, 11 states have (on average 6.0) internal successors, (66), 8 states have internal predecessors, (66), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2024-10-24 00:42:30,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:30,700 INFO L93 Difference]: Finished difference Result 765 states and 1218 transitions. [2024-10-24 00:42:30,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 00:42:30,701 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.0) internal successors, (66), 8 states have internal predecessors, (66), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 106 [2024-10-24 00:42:30,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:30,704 INFO L225 Difference]: With dead ends: 765 [2024-10-24 00:42:30,704 INFO L226 Difference]: Without dead ends: 463 [2024-10-24 00:42:30,705 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 29 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 00:42:30,706 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 897 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 3688 mSolverCounterSat, 269 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 898 SdHoareTripleChecker+Valid, 1342 SdHoareTripleChecker+Invalid, 3957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 269 IncrementalHoareTripleChecker+Valid, 3688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:30,706 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [898 Valid, 1342 Invalid, 3957 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [269 Valid, 3688 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-24 00:42:30,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2024-10-24 00:42:30,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 327. [2024-10-24 00:42:30,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 253 states have (on average 1.5849802371541502) internal successors, (401), 258 states have internal predecessors, (401), 53 states have call successors, (53), 16 states have call predecessors, (53), 20 states have return successors, (64), 52 states have call predecessors, (64), 52 states have call successors, (64) [2024-10-24 00:42:30,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 518 transitions. [2024-10-24 00:42:30,731 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 518 transitions. Word has length 106 [2024-10-24 00:42:30,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:30,731 INFO L471 AbstractCegarLoop]: Abstraction has 327 states and 518 transitions. [2024-10-24 00:42:30,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.0) internal successors, (66), 8 states have internal predecessors, (66), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2024-10-24 00:42:30,731 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 518 transitions. [2024-10-24 00:42:30,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-10-24 00:42:30,733 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:30,733 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] [2024-10-24 00:42:30,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 00:42:30,734 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:30,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:30,734 INFO L85 PathProgramCache]: Analyzing trace with hash 324837893, now seen corresponding path program 1 times [2024-10-24 00:42:30,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:30,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789567229] [2024-10-24 00:42:30,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:30,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:30,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:30,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:30,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:30,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:30,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:30,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:30,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:30,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:42:30,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:30,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:42:30,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:30,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:42:30,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:30,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-24 00:42:30,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:30,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-24 00:42:30,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:30,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 00:42:30,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:30,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 00:42:30,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:30,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 00:42:30,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:30,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 00:42:30,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:30,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 00:42:30,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:30,888 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-10-24 00:42:30,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:30,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789567229] [2024-10-24 00:42:30,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789567229] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:42:30,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1026556021] [2024-10-24 00:42:30,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:30,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:42:30,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:42:30,891 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 00:42:30,893 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 00:42:31,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:31,156 INFO L255 TraceCheckSpWp]: Trace formula consists of 994 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 00:42:31,159 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:42:31,181 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-10-24 00:42:31,181 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 00:42:31,270 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-10-24 00:42:31,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1026556021] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 00:42:31,270 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 00:42:31,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2024-10-24 00:42:31,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433508346] [2024-10-24 00:42:31,271 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 00:42:31,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 00:42:31,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:31,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 00:42:31,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-10-24 00:42:31,272 INFO L87 Difference]: Start difference. First operand 327 states and 518 transitions. Second operand has 11 states, 11 states have (on average 8.0) internal successors, (88), 7 states have internal predecessors, (88), 2 states have call successors, (32), 6 states have call predecessors, (32), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-24 00:42:32,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:32,681 INFO L93 Difference]: Finished difference Result 918 states and 1530 transitions. [2024-10-24 00:42:32,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 00:42:32,682 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.0) internal successors, (88), 7 states have internal predecessors, (88), 2 states have call successors, (32), 6 states have call predecessors, (32), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 107 [2024-10-24 00:42:32,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:32,687 INFO L225 Difference]: With dead ends: 918 [2024-10-24 00:42:32,687 INFO L226 Difference]: Without dead ends: 793 [2024-10-24 00:42:32,688 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 237 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 00:42:32,689 INFO L432 NwaCegarLoop]: 195 mSDtfsCounter, 1291 mSDsluCounter, 943 mSDsCounter, 0 mSdLazyCounter, 1880 mSolverCounterSat, 422 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1336 SdHoareTripleChecker+Valid, 1138 SdHoareTripleChecker+Invalid, 2302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 422 IncrementalHoareTripleChecker+Valid, 1880 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:32,689 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1336 Valid, 1138 Invalid, 2302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [422 Valid, 1880 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-24 00:42:32,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 793 states. [2024-10-24 00:42:32,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 793 to 642. [2024-10-24 00:42:32,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 504 states have (on average 1.6388888888888888) internal successors, (826), 509 states have internal predecessors, (826), 117 states have call successors, (117), 16 states have call predecessors, (117), 20 states have return successors, (138), 116 states have call predecessors, (138), 116 states have call successors, (138) [2024-10-24 00:42:32,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 1081 transitions. [2024-10-24 00:42:32,727 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 1081 transitions. Word has length 107 [2024-10-24 00:42:32,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:32,727 INFO L471 AbstractCegarLoop]: Abstraction has 642 states and 1081 transitions. [2024-10-24 00:42:32,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.0) internal successors, (88), 7 states have internal predecessors, (88), 2 states have call successors, (32), 6 states have call predecessors, (32), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-24 00:42:32,728 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 1081 transitions. [2024-10-24 00:42:32,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-10-24 00:42:32,731 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:32,731 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:42:32,748 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 00:42:32,932 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 00:42:32,932 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:32,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:32,933 INFO L85 PathProgramCache]: Analyzing trace with hash 179912098, now seen corresponding path program 1 times [2024-10-24 00:42:32,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:32,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383429718] [2024-10-24 00:42:32,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:32,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:32,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:32,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:32,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:32,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:32,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:33,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:33,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:33,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:42:33,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:33,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:42:33,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:33,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:42:33,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:33,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-24 00:42:33,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:33,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-24 00:42:33,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:33,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 00:42:33,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:33,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 00:42:33,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:33,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 00:42:33,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:33,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 00:42:33,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:33,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 00:42:33,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:33,034 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 00:42:33,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:33,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383429718] [2024-10-24 00:42:33,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383429718] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:42:33,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:42:33,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:42:33,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247144786] [2024-10-24 00:42:33,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:42:33,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:42:33,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:33,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:42:33,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:42:33,037 INFO L87 Difference]: Start difference. First operand 642 states and 1081 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:42:34,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:34,324 INFO L93 Difference]: Finished difference Result 1677 states and 2879 transitions. [2024-10-24 00:42:34,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:42:34,324 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 113 [2024-10-24 00:42:34,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:34,331 INFO L225 Difference]: With dead ends: 1677 [2024-10-24 00:42:34,332 INFO L226 Difference]: Without dead ends: 1095 [2024-10-24 00:42:34,334 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 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 00:42:34,335 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 983 mSDsluCounter, 576 mSDsCounter, 0 mSdLazyCounter, 1362 mSolverCounterSat, 314 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 998 SdHoareTripleChecker+Valid, 757 SdHoareTripleChecker+Invalid, 1676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 314 IncrementalHoareTripleChecker+Valid, 1362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:34,335 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [998 Valid, 757 Invalid, 1676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [314 Valid, 1362 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-24 00:42:34,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1095 states. [2024-10-24 00:42:34,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1095 to 954. [2024-10-24 00:42:34,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 954 states, 752 states have (on average 1.6462765957446808) internal successors, (1238), 757 states have internal predecessors, (1238), 181 states have call successors, (181), 16 states have call predecessors, (181), 20 states have return successors, (212), 180 states have call predecessors, (212), 180 states have call successors, (212) [2024-10-24 00:42:34,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 954 states to 954 states and 1631 transitions. [2024-10-24 00:42:34,382 INFO L78 Accepts]: Start accepts. Automaton has 954 states and 1631 transitions. Word has length 113 [2024-10-24 00:42:34,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:34,383 INFO L471 AbstractCegarLoop]: Abstraction has 954 states and 1631 transitions. [2024-10-24 00:42:34,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:42:34,383 INFO L276 IsEmpty]: Start isEmpty. Operand 954 states and 1631 transitions. [2024-10-24 00:42:34,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-24 00:42:34,388 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:34,388 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:42:34,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 00:42:34,388 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:34,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:34,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1505207814, now seen corresponding path program 1 times [2024-10-24 00:42:34,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:34,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157644076] [2024-10-24 00:42:34,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:34,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:34,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:34,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:34,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:34,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:34,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:34,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:34,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:34,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:42:34,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:34,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:42:34,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:34,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:42:34,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:34,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 00:42:34,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:34,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 00:42:34,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:34,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-24 00:42:34,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:34,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-24 00:42:34,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:34,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 00:42:34,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:34,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 00:42:34,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:34,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 00:42:34,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:34,489 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 00:42:34,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:34,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157644076] [2024-10-24 00:42:34,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157644076] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:42:34,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:42:34,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:42:34,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727345725] [2024-10-24 00:42:34,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:42:34,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:42:34,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:34,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:42:34,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:42:34,492 INFO L87 Difference]: Start difference. First operand 954 states and 1631 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:42:35,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:35,639 INFO L93 Difference]: Finished difference Result 2426 states and 4197 transitions. [2024-10-24 00:42:35,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:42:35,639 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 114 [2024-10-24 00:42:35,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:35,648 INFO L225 Difference]: With dead ends: 2426 [2024-10-24 00:42:35,649 INFO L226 Difference]: Without dead ends: 1582 [2024-10-24 00:42:35,652 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 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 00:42:35,653 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 1000 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 1269 mSolverCounterSat, 327 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1015 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 1596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 327 IncrementalHoareTripleChecker+Valid, 1269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:35,653 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1015 Valid, 709 Invalid, 1596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [327 Valid, 1269 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 00:42:35,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1582 states. [2024-10-24 00:42:35,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1582 to 1441. [2024-10-24 00:42:35,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1441 states, 1144 states have (on average 1.6503496503496504) internal successors, (1888), 1149 states have internal predecessors, (1888), 276 states have call successors, (276), 16 states have call predecessors, (276), 20 states have return successors, (307), 275 states have call predecessors, (307), 275 states have call successors, (307) [2024-10-24 00:42:35,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1441 states to 1441 states and 2471 transitions. [2024-10-24 00:42:35,720 INFO L78 Accepts]: Start accepts. Automaton has 1441 states and 2471 transitions. Word has length 114 [2024-10-24 00:42:35,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:35,720 INFO L471 AbstractCegarLoop]: Abstraction has 1441 states and 2471 transitions. [2024-10-24 00:42:35,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:42:35,721 INFO L276 IsEmpty]: Start isEmpty. Operand 1441 states and 2471 transitions. [2024-10-24 00:42:35,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-10-24 00:42:35,728 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:35,728 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:42:35,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 00:42:35,728 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:35,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:35,729 INFO L85 PathProgramCache]: Analyzing trace with hash -518273148, now seen corresponding path program 1 times [2024-10-24 00:42:35,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:35,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400804822] [2024-10-24 00:42:35,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:35,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:35,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:35,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:35,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:35,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:35,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:35,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:35,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:35,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:42:35,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:35,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:42:35,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:35,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:42:35,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:35,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-24 00:42:35,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:35,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 00:42:35,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:35,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-24 00:42:35,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:35,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 00:42:35,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:35,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-24 00:42:35,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:35,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-24 00:42:35,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:35,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-24 00:42:35,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:35,859 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 00:42:35,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:35,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400804822] [2024-10-24 00:42:35,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400804822] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:42:35,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:42:35,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:42:35,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117817726] [2024-10-24 00:42:35,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:42:35,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:42:35,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:35,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:42:35,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:42:35,862 INFO L87 Difference]: Start difference. First operand 1441 states and 2471 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:42:36,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:36,909 INFO L93 Difference]: Finished difference Result 3528 states and 6156 transitions. [2024-10-24 00:42:36,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:42:36,910 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 115 [2024-10-24 00:42:36,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:36,922 INFO L225 Difference]: With dead ends: 3528 [2024-10-24 00:42:36,923 INFO L226 Difference]: Without dead ends: 2317 [2024-10-24 00:42:36,928 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 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 00:42:36,929 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 999 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 1256 mSolverCounterSat, 324 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1014 SdHoareTripleChecker+Valid, 707 SdHoareTripleChecker+Invalid, 1580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 324 IncrementalHoareTripleChecker+Valid, 1256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:36,929 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1014 Valid, 707 Invalid, 1580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [324 Valid, 1256 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 00:42:36,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2317 states. [2024-10-24 00:42:37,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2317 to 2176. [2024-10-24 00:42:37,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2176 states, 1756 states have (on average 1.6543280182232347) internal successors, (2905), 1761 states have internal predecessors, (2905), 399 states have call successors, (399), 16 states have call predecessors, (399), 20 states have return successors, (446), 398 states have call predecessors, (446), 398 states have call successors, (446) [2024-10-24 00:42:37,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2176 states to 2176 states and 3750 transitions. [2024-10-24 00:42:37,068 INFO L78 Accepts]: Start accepts. Automaton has 2176 states and 3750 transitions. Word has length 115 [2024-10-24 00:42:37,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:37,068 INFO L471 AbstractCegarLoop]: Abstraction has 2176 states and 3750 transitions. [2024-10-24 00:42:37,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:42:37,069 INFO L276 IsEmpty]: Start isEmpty. Operand 2176 states and 3750 transitions. [2024-10-24 00:42:37,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-10-24 00:42:37,080 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:37,080 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:42:37,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 00:42:37,081 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:37,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:37,081 INFO L85 PathProgramCache]: Analyzing trace with hash 929991719, now seen corresponding path program 1 times [2024-10-24 00:42:37,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:37,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679299259] [2024-10-24 00:42:37,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:37,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:37,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:37,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:37,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:37,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:37,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:37,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:37,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:37,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:42:37,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:37,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:42:37,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:37,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:42:37,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:37,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-24 00:42:37,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:37,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 00:42:37,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:37,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-24 00:42:37,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:37,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 00:42:37,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:37,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 00:42:37,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:37,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 00:42:37,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:37,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 00:42:37,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:37,212 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 00:42:37,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:37,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679299259] [2024-10-24 00:42:37,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679299259] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:42:37,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:42:37,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:42:37,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684033096] [2024-10-24 00:42:37,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:42:37,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:42:37,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:37,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:42:37,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:42:37,215 INFO L87 Difference]: Start difference. First operand 2176 states and 3750 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:42:38,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:38,269 INFO L93 Difference]: Finished difference Result 5238 states and 9206 transitions. [2024-10-24 00:42:38,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:42:38,270 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 116 [2024-10-24 00:42:38,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:38,290 INFO L225 Difference]: With dead ends: 5238 [2024-10-24 00:42:38,290 INFO L226 Difference]: Without dead ends: 3489 [2024-10-24 00:42:38,297 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 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 00:42:38,298 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 991 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 1266 mSolverCounterSat, 323 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1006 SdHoareTripleChecker+Valid, 706 SdHoareTripleChecker+Invalid, 1589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 323 IncrementalHoareTripleChecker+Valid, 1266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:38,298 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1006 Valid, 706 Invalid, 1589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [323 Valid, 1266 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 00:42:38,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3489 states. [2024-10-24 00:42:38,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3489 to 3348. [2024-10-24 00:42:38,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3348 states, 2749 states have (on average 1.6569661695161877) internal successors, (4555), 2754 states have internal predecessors, (4555), 578 states have call successors, (578), 16 states have call predecessors, (578), 20 states have return successors, (651), 577 states have call predecessors, (651), 577 states have call successors, (651) [2024-10-24 00:42:38,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3348 states to 3348 states and 5784 transitions. [2024-10-24 00:42:38,464 INFO L78 Accepts]: Start accepts. Automaton has 3348 states and 5784 transitions. Word has length 116 [2024-10-24 00:42:38,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:38,464 INFO L471 AbstractCegarLoop]: Abstraction has 3348 states and 5784 transitions. [2024-10-24 00:42:38,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:42:38,464 INFO L276 IsEmpty]: Start isEmpty. Operand 3348 states and 5784 transitions. [2024-10-24 00:42:38,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-10-24 00:42:38,476 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:38,476 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:42:38,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 00:42:38,476 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:38,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:38,477 INFO L85 PathProgramCache]: Analyzing trace with hash -2131500800, now seen corresponding path program 1 times [2024-10-24 00:42:38,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:38,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203909711] [2024-10-24 00:42:38,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:38,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:38,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:38,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:38,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:38,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:38,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:38,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:38,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:38,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:42:38,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:38,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:42:38,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:38,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:42:38,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:38,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-24 00:42:38,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:38,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-24 00:42:38,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:38,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 00:42:38,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:38,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 00:42:38,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:38,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 00:42:38,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:38,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-24 00:42:38,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:38,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 00:42:38,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:38,590 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 00:42:38,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:38,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203909711] [2024-10-24 00:42:38,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203909711] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:42:38,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:42:38,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:42:38,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163054789] [2024-10-24 00:42:38,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:42:38,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:42:38,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:38,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:42:38,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:42:38,593 INFO L87 Difference]: Start difference. First operand 3348 states and 5784 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:42:39,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:39,845 INFO L93 Difference]: Finished difference Result 8093 states and 14260 transitions. [2024-10-24 00:42:39,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:42:39,845 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 117 [2024-10-24 00:42:39,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:39,877 INFO L225 Difference]: With dead ends: 8093 [2024-10-24 00:42:39,877 INFO L226 Difference]: Without dead ends: 5459 [2024-10-24 00:42:39,887 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 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 00:42:39,888 INFO L432 NwaCegarLoop]: 172 mSDtfsCounter, 973 mSDsluCounter, 561 mSDsCounter, 0 mSdLazyCounter, 1330 mSolverCounterSat, 320 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 988 SdHoareTripleChecker+Valid, 733 SdHoareTripleChecker+Invalid, 1650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 320 IncrementalHoareTripleChecker+Valid, 1330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:39,888 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [988 Valid, 733 Invalid, 1650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [320 Valid, 1330 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 00:42:39,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5459 states. [2024-10-24 00:42:40,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5459 to 5318. [2024-10-24 00:42:40,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5318 states, 4343 states have (on average 1.6454064011052267) internal successors, (7146), 4348 states have internal predecessors, (7146), 954 states have call successors, (954), 16 states have call predecessors, (954), 20 states have return successors, (1071), 953 states have call predecessors, (1071), 953 states have call successors, (1071) [2024-10-24 00:42:40,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5318 states to 5318 states and 9171 transitions. [2024-10-24 00:42:40,163 INFO L78 Accepts]: Start accepts. Automaton has 5318 states and 9171 transitions. Word has length 117 [2024-10-24 00:42:40,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:40,163 INFO L471 AbstractCegarLoop]: Abstraction has 5318 states and 9171 transitions. [2024-10-24 00:42:40,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:42:40,164 INFO L276 IsEmpty]: Start isEmpty. Operand 5318 states and 9171 transitions. [2024-10-24 00:42:40,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-10-24 00:42:40,182 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:40,182 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:42:40,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 00:42:40,182 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:40,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:40,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1740206421, now seen corresponding path program 1 times [2024-10-24 00:42:40,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:40,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34327267] [2024-10-24 00:42:40,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:40,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:40,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:40,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:40,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:40,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:40,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:40,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:40,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:40,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:42:40,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:40,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:42:40,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:40,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:42:40,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:40,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-24 00:42:40,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:40,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-24 00:42:40,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:40,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 00:42:40,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:40,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 00:42:40,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:40,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-24 00:42:40,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:40,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 00:42:40,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:40,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 00:42:40,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:40,317 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 00:42:40,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:40,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34327267] [2024-10-24 00:42:40,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34327267] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:42:40,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:42:40,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:42:40,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463783565] [2024-10-24 00:42:40,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:42:40,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:42:40,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:40,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:42:40,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:42:40,320 INFO L87 Difference]: Start difference. First operand 5318 states and 9171 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:42:41,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:41,600 INFO L93 Difference]: Finished difference Result 13230 states and 23281 transitions. [2024-10-24 00:42:41,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:42:41,600 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 118 [2024-10-24 00:42:41,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:41,647 INFO L225 Difference]: With dead ends: 13230 [2024-10-24 00:42:41,647 INFO L226 Difference]: Without dead ends: 8992 [2024-10-24 00:42:41,663 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 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 00:42:41,664 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 1007 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 1241 mSolverCounterSat, 337 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1022 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 1578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 337 IncrementalHoareTripleChecker+Valid, 1241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:41,664 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1022 Valid, 715 Invalid, 1578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [337 Valid, 1241 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 00:42:41,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8992 states. [2024-10-24 00:42:42,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8992 to 8851. [2024-10-24 00:42:42,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8851 states, 7270 states have (on average 1.6426409903713892) internal successors, (11942), 7275 states have internal predecessors, (11942), 1560 states have call successors, (1560), 16 states have call predecessors, (1560), 20 states have return successors, (1755), 1559 states have call predecessors, (1755), 1559 states have call successors, (1755) [2024-10-24 00:42:42,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8851 states to 8851 states and 15257 transitions. [2024-10-24 00:42:42,133 INFO L78 Accepts]: Start accepts. Automaton has 8851 states and 15257 transitions. Word has length 118 [2024-10-24 00:42:42,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:42,133 INFO L471 AbstractCegarLoop]: Abstraction has 8851 states and 15257 transitions. [2024-10-24 00:42:42,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:42:42,134 INFO L276 IsEmpty]: Start isEmpty. Operand 8851 states and 15257 transitions. [2024-10-24 00:42:42,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-10-24 00:42:42,156 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:42,157 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:42:42,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 00:42:42,157 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:42,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:42,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1454781138, now seen corresponding path program 1 times [2024-10-24 00:42:42,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:42,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817596698] [2024-10-24 00:42:42,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:42,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:42,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:42,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:42,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:42,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:42,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:42,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:42,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:42,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:42:42,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:42,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:42:42,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:42,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:42:42,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:42,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 00:42:42,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:42,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-24 00:42:42,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:42,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 00:42:42,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:42,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 00:42:42,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:42,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 00:42:42,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:42,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 00:42:42,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:42,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 00:42:42,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:42,270 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 00:42:42,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:42,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817596698] [2024-10-24 00:42:42,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817596698] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:42:42,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:42:42,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:42:42,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821918293] [2024-10-24 00:42:42,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:42:42,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:42:42,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:42,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:42:42,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:42:42,273 INFO L87 Difference]: Start difference. First operand 8851 states and 15257 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:42:43,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:43,583 INFO L93 Difference]: Finished difference Result 23002 states and 40415 transitions. [2024-10-24 00:42:43,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:42:43,583 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 119 [2024-10-24 00:42:43,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:43,659 INFO L225 Difference]: With dead ends: 23002 [2024-10-24 00:42:43,659 INFO L226 Difference]: Without dead ends: 15664 [2024-10-24 00:42:43,685 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 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 00:42:43,686 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 995 mSDsluCounter, 585 mSDsCounter, 0 mSdLazyCounter, 1296 mSolverCounterSat, 333 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1010 SdHoareTripleChecker+Valid, 767 SdHoareTripleChecker+Invalid, 1629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 333 IncrementalHoareTripleChecker+Valid, 1296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:43,686 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1010 Valid, 767 Invalid, 1629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [333 Valid, 1296 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 00:42:43,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15664 states. [2024-10-24 00:42:44,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15664 to 15523. [2024-10-24 00:42:44,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15523 states, 12739 states have (on average 1.6330167203077164) internal successors, (20803), 12744 states have internal predecessors, (20803), 2763 states have call successors, (2763), 16 states have call predecessors, (2763), 20 states have return successors, (3102), 2762 states have call predecessors, (3102), 2762 states have call successors, (3102) [2024-10-24 00:42:44,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15523 states to 15523 states and 26668 transitions. [2024-10-24 00:42:44,436 INFO L78 Accepts]: Start accepts. Automaton has 15523 states and 26668 transitions. Word has length 119 [2024-10-24 00:42:44,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:44,437 INFO L471 AbstractCegarLoop]: Abstraction has 15523 states and 26668 transitions. [2024-10-24 00:42:44,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:42:44,437 INFO L276 IsEmpty]: Start isEmpty. Operand 15523 states and 26668 transitions. [2024-10-24 00:42:44,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-10-24 00:42:44,470 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:44,471 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:42:44,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-24 00:42:44,471 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:44,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:44,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1279955476, now seen corresponding path program 1 times [2024-10-24 00:42:44,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:44,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329809396] [2024-10-24 00:42:44,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:44,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:44,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:44,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:44,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:44,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:44,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:44,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:44,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:44,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:42:44,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:44,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:42:44,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:44,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:42:44,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:44,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 00:42:44,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:44,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 00:42:44,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:44,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-24 00:42:44,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:44,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 00:42:44,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:44,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-24 00:42:44,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:44,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 00:42:44,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:44,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-24 00:42:44,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:44,633 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 00:42:44,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:44,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329809396] [2024-10-24 00:42:44,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329809396] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:42:44,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:42:44,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:42:44,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116285614] [2024-10-24 00:42:44,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:42:44,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:42:44,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:44,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:42:44,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:42:44,637 INFO L87 Difference]: Start difference. First operand 15523 states and 26668 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:42:46,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:46,327 INFO L93 Difference]: Finished difference Result 41169 states and 72215 transitions. [2024-10-24 00:42:46,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:42:46,328 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 120 [2024-10-24 00:42:46,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:46,468 INFO L225 Difference]: With dead ends: 41169 [2024-10-24 00:42:46,469 INFO L226 Difference]: Without dead ends: 27779 [2024-10-24 00:42:46,529 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 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 00:42:46,530 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 982 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 1264 mSolverCounterSat, 330 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 997 SdHoareTripleChecker+Valid, 707 SdHoareTripleChecker+Invalid, 1594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 330 IncrementalHoareTripleChecker+Valid, 1264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:46,530 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [997 Valid, 707 Invalid, 1594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [330 Valid, 1264 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 00:42:46,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27779 states. [2024-10-24 00:42:47,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27779 to 27638. [2024-10-24 00:42:47,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27638 states, 22815 states have (on average 1.629059829059829) internal successors, (37167), 22820 states have internal predecessors, (37167), 4802 states have call successors, (4802), 16 states have call predecessors, (4802), 20 states have return successors, (5415), 4801 states have call predecessors, (5415), 4801 states have call successors, (5415) [2024-10-24 00:42:47,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27638 states to 27638 states and 47384 transitions. [2024-10-24 00:42:47,756 INFO L78 Accepts]: Start accepts. Automaton has 27638 states and 47384 transitions. Word has length 120 [2024-10-24 00:42:47,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:47,756 INFO L471 AbstractCegarLoop]: Abstraction has 27638 states and 47384 transitions. [2024-10-24 00:42:47,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:42:47,757 INFO L276 IsEmpty]: Start isEmpty. Operand 27638 states and 47384 transitions. [2024-10-24 00:42:47,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-10-24 00:42:47,784 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:47,785 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:42:47,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-24 00:42:47,785 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:47,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:47,785 INFO L85 PathProgramCache]: Analyzing trace with hash -183659568, now seen corresponding path program 1 times [2024-10-24 00:42:47,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:47,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964786231] [2024-10-24 00:42:47,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:47,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:47,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:47,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:47,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:47,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:47,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:47,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:47,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:47,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:42:47,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:47,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:42:47,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:47,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:42:47,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:47,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 00:42:47,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:47,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 00:42:47,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:47,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 00:42:47,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:47,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-24 00:42:47,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:47,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 00:42:47,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:47,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-24 00:42:47,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:47,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-24 00:42:47,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:47,889 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 00:42:47,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:47,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964786231] [2024-10-24 00:42:47,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964786231] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:42:47,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:42:47,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:42:47,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914514457] [2024-10-24 00:42:47,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:42:47,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:42:47,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:47,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:42:47,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:42:47,892 INFO L87 Difference]: Start difference. First operand 27638 states and 47384 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:42:50,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:50,254 INFO L93 Difference]: Finished difference Result 75361 states and 131404 transitions. [2024-10-24 00:42:50,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:42:50,254 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 121 [2024-10-24 00:42:50,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:50,482 INFO L225 Difference]: With dead ends: 75361 [2024-10-24 00:42:50,483 INFO L226 Difference]: Without dead ends: 50603 [2024-10-24 00:42:50,555 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 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 00:42:50,556 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 968 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 1290 mSolverCounterSat, 328 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 983 SdHoareTripleChecker+Valid, 719 SdHoareTripleChecker+Invalid, 1618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 328 IncrementalHoareTripleChecker+Valid, 1290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:50,556 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [983 Valid, 719 Invalid, 1618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [328 Valid, 1290 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 00:42:50,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50603 states. [2024-10-24 00:42:52,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50603 to 50462. [2024-10-24 00:42:52,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50462 states, 41924 states have (on average 1.6239147027955347) internal successors, (68081), 41929 states have internal predecessors, (68081), 8517 states have call successors, (8517), 16 states have call predecessors, (8517), 20 states have return successors, (9662), 8516 states have call predecessors, (9662), 8516 states have call successors, (9662) [2024-10-24 00:42:52,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50462 states to 50462 states and 86260 transitions. [2024-10-24 00:42:52,942 INFO L78 Accepts]: Start accepts. Automaton has 50462 states and 86260 transitions. Word has length 121 [2024-10-24 00:42:52,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:52,942 INFO L471 AbstractCegarLoop]: Abstraction has 50462 states and 86260 transitions. [2024-10-24 00:42:52,942 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:42:52,943 INFO L276 IsEmpty]: Start isEmpty. Operand 50462 states and 86260 transitions. [2024-10-24 00:42:53,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-10-24 00:42:53,323 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:53,323 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:42:53,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-24 00:42:53,324 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:53,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:53,324 INFO L85 PathProgramCache]: Analyzing trace with hash -275533620, now seen corresponding path program 1 times [2024-10-24 00:42:53,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:53,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807157128] [2024-10-24 00:42:53,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:53,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:53,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:53,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:53,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:53,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:53,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:53,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:53,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:53,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:42:53,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:53,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:42:53,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:53,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:42:53,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:53,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-24 00:42:53,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:53,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-24 00:42:53,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:53,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 00:42:53,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:53,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 00:42:53,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:53,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 00:42:53,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:53,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 00:42:53,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:53,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 00:42:53,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:53,429 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 00:42:53,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:53,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807157128] [2024-10-24 00:42:53,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807157128] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:42:53,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:42:53,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:42:53,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661538397] [2024-10-24 00:42:53,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:42:53,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:42:53,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:53,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:42:53,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:42:53,432 INFO L87 Difference]: Start difference. First operand 50462 states and 86260 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, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:42:56,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:56,305 INFO L93 Difference]: Finished difference Result 94108 states and 164567 transitions. [2024-10-24 00:42:56,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:42:56,305 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, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 122 [2024-10-24 00:42:56,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:56,872 INFO L225 Difference]: With dead ends: 94108 [2024-10-24 00:42:56,872 INFO L226 Difference]: Without dead ends: 93983 [2024-10-24 00:42:56,920 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 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 00:42:56,921 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 973 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 1307 mSolverCounterSat, 315 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 987 SdHoareTripleChecker+Valid, 722 SdHoareTripleChecker+Invalid, 1622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 315 IncrementalHoareTripleChecker+Valid, 1307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:56,921 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [987 Valid, 722 Invalid, 1622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [315 Valid, 1307 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-24 00:42:56,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93983 states. [2024-10-24 00:43:00,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93983 to 93842. [2024-10-24 00:43:00,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93842 states, 78505 states have (on average 1.6173746895102223) internal successors, (126972), 78510 states have internal predecessors, (126972), 15316 states have call successors, (15316), 16 states have call predecessors, (15316), 20 states have return successors, (17507), 15315 states have call predecessors, (17507), 15315 states have call successors, (17507) [2024-10-24 00:43:01,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93842 states to 93842 states and 159795 transitions. [2024-10-24 00:43:01,071 INFO L78 Accepts]: Start accepts. Automaton has 93842 states and 159795 transitions. Word has length 122 [2024-10-24 00:43:01,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:43:01,072 INFO L471 AbstractCegarLoop]: Abstraction has 93842 states and 159795 transitions. [2024-10-24 00:43:01,072 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, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:43:01,072 INFO L276 IsEmpty]: Start isEmpty. Operand 93842 states and 159795 transitions. [2024-10-24 00:43:01,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-10-24 00:43:01,110 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:43:01,111 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:43:01,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-24 00:43:01,111 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:43:01,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:43:01,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1466595343, now seen corresponding path program 1 times [2024-10-24 00:43:01,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:43:01,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201465966] [2024-10-24 00:43:01,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:43:01,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:43:01,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:01,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:43:01,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:01,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:43:01,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:01,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:43:01,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:01,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:43:01,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:01,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:43:01,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:01,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:43:01,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:01,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-24 00:43:01,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:01,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 00:43:01,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:01,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 00:43:01,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:01,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 00:43:01,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:01,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 00:43:01,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:01,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 00:43:01,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:01,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 00:43:01,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:01,284 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-10-24 00:43:01,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:43:01,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201465966] [2024-10-24 00:43:01,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201465966] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:43:01,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [662886074] [2024-10-24 00:43:01,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:43:01,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:43:01,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:43:01,287 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 00:43:01,288 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 00:43:01,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:01,571 INFO L255 TraceCheckSpWp]: Trace formula consists of 1045 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-24 00:43:01,574 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:43:01,807 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 00:43:01,807 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 00:43:02,061 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-24 00:43:02,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [662886074] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 00:43:02,062 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 00:43:02,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 22 [2024-10-24 00:43:02,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485536238] [2024-10-24 00:43:02,062 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 00:43:02,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-10-24 00:43:02,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:43:02,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-10-24 00:43:02,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2024-10-24 00:43:02,064 INFO L87 Difference]: Start difference. First operand 93842 states and 159795 transitions. Second operand has 22 states, 21 states have (on average 9.666666666666666) internal successors, (203), 17 states have internal predecessors, (203), 4 states have call successors, (42), 10 states have call predecessors, (42), 8 states have return successors, (35), 5 states have call predecessors, (35), 4 states have call successors, (35) [2024-10-24 00:43:09,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:43:09,740 INFO L93 Difference]: Finished difference Result 188094 states and 331133 transitions. [2024-10-24 00:43:09,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-10-24 00:43:09,741 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 9.666666666666666) internal successors, (203), 17 states have internal predecessors, (203), 4 states have call successors, (42), 10 states have call predecessors, (42), 8 states have return successors, (35), 5 states have call predecessors, (35), 4 states have call successors, (35) Word has length 123 [2024-10-24 00:43:09,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:43:11,076 INFO L225 Difference]: With dead ends: 188094 [2024-10-24 00:43:11,076 INFO L226 Difference]: Without dead ends: 187974 [2024-10-24 00:43:11,178 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 596 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=619, Invalid=2461, Unknown=0, NotChecked=0, Total=3080 [2024-10-24 00:43:11,179 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 2468 mSDsluCounter, 2199 mSDsCounter, 0 mSdLazyCounter, 6867 mSolverCounterSat, 666 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2480 SdHoareTripleChecker+Valid, 2338 SdHoareTripleChecker+Invalid, 7533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 666 IncrementalHoareTripleChecker+Valid, 6867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-10-24 00:43:11,180 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2480 Valid, 2338 Invalid, 7533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [666 Valid, 6867 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-10-24 00:43:11,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187974 states. [2024-10-24 00:43:17,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187974 to 187689. [2024-10-24 00:43:17,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187689 states, 157017 states have (on average 1.6173662724418376) internal successors, (253954), 157024 states have internal predecessors, (253954), 30630 states have call successors, (30630), 34 states have call predecessors, (30630), 41 states have return successors, (37192), 30630 states have call predecessors, (37192), 30628 states have call successors, (37192) [2024-10-24 00:43:18,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187689 states to 187689 states and 321776 transitions. [2024-10-24 00:43:19,043 INFO L78 Accepts]: Start accepts. Automaton has 187689 states and 321776 transitions. Word has length 123 [2024-10-24 00:43:19,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:43:19,044 INFO L471 AbstractCegarLoop]: Abstraction has 187689 states and 321776 transitions. [2024-10-24 00:43:19,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 9.666666666666666) internal successors, (203), 17 states have internal predecessors, (203), 4 states have call successors, (42), 10 states have call predecessors, (42), 8 states have return successors, (35), 5 states have call predecessors, (35), 4 states have call successors, (35) [2024-10-24 00:43:19,045 INFO L276 IsEmpty]: Start isEmpty. Operand 187689 states and 321776 transitions. [2024-10-24 00:43:19,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-24 00:43:19,179 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:43:19,179 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:43:19,200 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-10-24 00:43:19,379 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 00:43:19,380 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:43:19,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:43:19,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1148489312, now seen corresponding path program 1 times [2024-10-24 00:43:19,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:43:19,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719200267] [2024-10-24 00:43:19,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:43:19,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:43:19,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:19,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:43:19,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:19,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:43:19,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:19,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:43:19,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:19,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:43:19,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:19,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:43:19,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:19,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:43:19,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:19,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-24 00:43:19,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:19,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 00:43:19,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:19,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 00:43:19,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:19,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-24 00:43:19,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:19,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-24 00:43:19,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:19,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 00:43:19,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:19,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-24 00:43:19,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:19,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-24 00:43:19,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:19,602 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 00:43:19,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:43:19,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719200267] [2024-10-24 00:43:19,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719200267] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:43:19,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:43:19,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-24 00:43:19,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607407708] [2024-10-24 00:43:19,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:43:19,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 00:43:19,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:43:19,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 00:43:19,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-10-24 00:43:19,605 INFO L87 Difference]: Start difference. First operand 187689 states and 321776 transitions. Second operand has 11 states, 11 states have (on average 7.636363636363637) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (16), 7 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14)