./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec4_product24.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/email_spec4_product24.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cc83a32f8f5c6143265231752530a7f576faa355052cdad9509cfbce0d0adeb3 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 15:04:48,144 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 15:04:48,226 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 15:04:48,232 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 15:04:48,232 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 15:04:48,257 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 15:04:48,258 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 15:04:48,258 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 15:04:48,258 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 15:04:48,259 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 15:04:48,259 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 15:04:48,259 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 15:04:48,260 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 15:04:48,262 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 15:04:48,262 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 15:04:48,263 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 15:04:48,263 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 15:04:48,263 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 15:04:48,264 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 15:04:48,264 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 15:04:48,264 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 15:04:48,265 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 15:04:48,265 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 15:04:48,265 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 15:04:48,266 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 15:04:48,266 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 15:04:48,266 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 15:04:48,267 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 15:04:48,267 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 15:04:48,269 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 15:04:48,270 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 15:04:48,270 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 15:04:48,270 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 15:04:48,271 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 15:04:48,271 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 15:04:48,271 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 15:04:48,271 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 15:04:48,271 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 15:04:48,272 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 15:04:48,272 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 15:04:48,272 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 15:04:48,273 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 15:04:48,273 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cc83a32f8f5c6143265231752530a7f576faa355052cdad9509cfbce0d0adeb3 [2024-11-08 15:04:48,531 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 15:04:48,560 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 15:04:48,563 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 15:04:48,564 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 15:04:48,565 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 15:04:48,566 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec4_product24.cil.c [2024-11-08 15:04:50,084 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 15:04:50,377 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 15:04:50,381 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec4_product24.cil.c [2024-11-08 15:04:50,410 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe35be378/e2f1ab052630454a9e0cb2d982371162/FLAG2055945e1 [2024-11-08 15:04:50,660 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe35be378/e2f1ab052630454a9e0cb2d982371162 [2024-11-08 15:04:50,662 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 15:04:50,663 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 15:04:50,664 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 15:04:50,665 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 15:04:50,671 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 15:04:50,671 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 03:04:50" (1/1) ... [2024-11-08 15:04:50,672 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30677bdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:04:50, skipping insertion in model container [2024-11-08 15:04:50,687 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 03:04:50" (1/1) ... [2024-11-08 15:04:50,787 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 15:04:51,180 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec4_product24.cil.c[33676,33689] [2024-11-08 15:04:51,373 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 15:04:51,390 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 15:04:51,399 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [48] [2024-11-08 15:04:51,401 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [277] [2024-11-08 15:04:51,401 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1357] [2024-11-08 15:04:51,402 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1375] [2024-11-08 15:04:51,402 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1424] [2024-11-08 15:04:51,402 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1433] [2024-11-08 15:04:51,403 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1799] [2024-11-08 15:04:51,403 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2211] [2024-11-08 15:04:51,403 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignForward_spec.i","") [2503] [2024-11-08 15:04:51,404 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2530] [2024-11-08 15:04:51,404 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2629] [2024-11-08 15:04:51,438 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec4_product24.cil.c[33676,33689] [2024-11-08 15:04:51,473 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 15:04:51,503 INFO L204 MainTranslator]: Completed translation [2024-11-08 15:04:51,505 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:04:51 WrapperNode [2024-11-08 15:04:51,505 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 15:04:51,507 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 15:04:51,507 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 15:04:51,507 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 15:04:51,513 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:04:51" (1/1) ... [2024-11-08 15:04:51,541 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:04:51" (1/1) ... [2024-11-08 15:04:51,599 INFO L138 Inliner]: procedures = 130, calls = 193, calls flagged for inlining = 63, calls inlined = 58, statements flattened = 1042 [2024-11-08 15:04:51,599 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 15:04:51,600 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 15:04:51,600 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 15:04:51,600 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 15:04:51,616 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:04:51" (1/1) ... [2024-11-08 15:04:51,616 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:04:51" (1/1) ... [2024-11-08 15:04:51,621 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:04:51" (1/1) ... [2024-11-08 15:04:51,654 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4]. 29 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0]. [2024-11-08 15:04:51,654 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:04:51" (1/1) ... [2024-11-08 15:04:51,655 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:04:51" (1/1) ... [2024-11-08 15:04:51,682 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:04:51" (1/1) ... [2024-11-08 15:04:51,691 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:04:51" (1/1) ... [2024-11-08 15:04:51,696 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:04:51" (1/1) ... [2024-11-08 15:04:51,701 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:04:51" (1/1) ... [2024-11-08 15:04:51,717 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 15:04:51,721 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 15:04:51,721 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 15:04:51,722 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 15:04:51,722 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:04:51" (1/1) ... [2024-11-08 15:04:51,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 15:04:51,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:04:51,767 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 15:04:51,771 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 15:04:51,820 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-11-08 15:04:51,820 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-11-08 15:04:51,820 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-08 15:04:51,820 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-08 15:04:51,821 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-08 15:04:51,821 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-08 15:04:51,821 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-08 15:04:51,821 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-08 15:04:51,822 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-08 15:04:51,822 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-08 15:04:51,822 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-08 15:04:51,822 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-08 15:04:51,822 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-08 15:04:51,823 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-08 15:04:51,823 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-08 15:04:51,823 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-08 15:04:51,824 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2024-11-08 15:04:51,824 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2024-11-08 15:04:51,825 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-08 15:04:51,825 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-08 15:04:51,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 15:04:51,826 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-08 15:04:51,826 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-08 15:04:51,827 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-08 15:04:51,827 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-08 15:04:51,827 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-08 15:04:51,828 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-08 15:04:51,828 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-08 15:04:51,828 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-08 15:04:51,828 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-08 15:04:51,828 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-08 15:04:51,828 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-08 15:04:51,828 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-08 15:04:51,829 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-08 15:04:51,829 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-08 15:04:51,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 15:04:51,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 15:04:51,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 15:04:51,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-08 15:04:51,829 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-08 15:04:51,829 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-08 15:04:51,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 15:04:51,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 15:04:52,055 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 15:04:52,060 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 15:04:53,007 INFO L? ?]: Removed 458 outVars from TransFormulas that were not future-live. [2024-11-08 15:04:53,008 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 15:04:53,031 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 15:04:53,032 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 15:04:53,032 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 03:04:53 BoogieIcfgContainer [2024-11-08 15:04:53,032 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 15:04:53,034 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 15:04:53,034 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 15:04:53,037 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 15:04:53,038 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 03:04:50" (1/3) ... [2024-11-08 15:04:53,038 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@642d5352 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 03:04:53, skipping insertion in model container [2024-11-08 15:04:53,039 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:04:51" (2/3) ... [2024-11-08 15:04:53,039 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@642d5352 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 03:04:53, skipping insertion in model container [2024-11-08 15:04:53,039 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 03:04:53" (3/3) ... [2024-11-08 15:04:53,040 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec4_product24.cil.c [2024-11-08 15:04:53,057 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 15:04:53,057 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 15:04:53,139 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 15:04:53,149 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;@27eb2a06, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 15:04:53,149 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 15:04:53,156 INFO L276 IsEmpty]: Start isEmpty. Operand has 327 states, 259 states have (on average 1.528957528957529) internal successors, (396), 261 states have internal predecessors, (396), 48 states have call successors, (48), 18 states have call predecessors, (48), 18 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-08 15:04:53,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-08 15:04:53,178 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:04:53,179 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:04:53,179 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:04:53,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:04:53,185 INFO L85 PathProgramCache]: Analyzing trace with hash -487814917, now seen corresponding path program 1 times [2024-11-08 15:04:53,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:04:53,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23759952] [2024-11-08 15:04:53,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:04:53,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:04:53,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:53,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:04:53,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:53,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:04:53,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:53,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:04:53,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:53,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-08 15:04:53,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:53,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-08 15:04:53,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:53,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 15:04:53,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:53,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 15:04:53,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:53,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-08 15:04:53,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:53,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 15:04:53,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:53,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 15:04:53,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:53,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 15:04:53,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:53,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-08 15:04:53,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:53,969 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-08 15:04:53,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:04:53,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23759952] [2024-11-08 15:04:53,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23759952] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:04:53,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1751434266] [2024-11-08 15:04:53,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:04:53,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:04:53,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:04:53,977 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 15:04:53,978 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 15:04:54,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:54,309 INFO L255 TraceCheckSpWp]: Trace formula consists of 928 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-08 15:04:54,317 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:04:54,350 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-08 15:04:54,350 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 15:04:54,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1751434266] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:04:54,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 15:04:54,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2024-11-08 15:04:54,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609696680] [2024-11-08 15:04:54,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:04:54,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 15:04:54,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:04:54,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 15:04:54,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-08 15:04:54,391 INFO L87 Difference]: Start difference. First operand has 327 states, 259 states have (on average 1.528957528957529) internal successors, (396), 261 states have internal predecessors, (396), 48 states have call successors, (48), 18 states have call predecessors, (48), 18 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) Second operand has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 15:04:54,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:04:54,445 INFO L93 Difference]: Finished difference Result 495 states and 730 transitions. [2024-11-08 15:04:54,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 15:04:54,451 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 92 [2024-11-08 15:04:54,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:04:54,465 INFO L225 Difference]: With dead ends: 495 [2024-11-08 15:04:54,465 INFO L226 Difference]: Without dead ends: 320 [2024-11-08 15:04:54,471 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-08 15:04:54,474 INFO L432 NwaCegarLoop]: 488 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:04:54,475 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:04:54,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2024-11-08 15:04:54,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 320. [2024-11-08 15:04:54,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 253 states have (on average 1.5217391304347827) internal successors, (385), 254 states have internal predecessors, (385), 48 states have call successors, (48), 18 states have call predecessors, (48), 18 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-08 15:04:54,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 480 transitions. [2024-11-08 15:04:54,540 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 480 transitions. Word has length 92 [2024-11-08 15:04:54,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:04:54,541 INFO L471 AbstractCegarLoop]: Abstraction has 320 states and 480 transitions. [2024-11-08 15:04:54,542 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 15:04:54,542 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 480 transitions. [2024-11-08 15:04:54,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-08 15:04:54,550 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:04:54,550 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:04:54,565 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 15:04:54,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-08 15:04:54,752 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:04:54,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:04:54,752 INFO L85 PathProgramCache]: Analyzing trace with hash 742003477, now seen corresponding path program 1 times [2024-11-08 15:04:54,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:04:54,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287041393] [2024-11-08 15:04:54,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:04:54,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:04:54,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:55,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:04:55,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:55,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:04:55,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:55,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:04:55,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:55,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-08 15:04:55,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:55,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-08 15:04:55,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:55,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 15:04:55,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:55,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-08 15:04:55,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:55,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 15:04:55,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:55,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 15:04:55,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:55,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-08 15:04:55,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:55,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-08 15:04:55,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:55,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-08 15:04:55,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:55,124 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-08 15:04:55,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:04:55,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287041393] [2024-11-08 15:04:55,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287041393] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:04:55,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [851720398] [2024-11-08 15:04:55,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:04:55,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:04:55,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:04:55,129 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 15:04:55,130 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 15:04:55,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:55,431 INFO L255 TraceCheckSpWp]: Trace formula consists of 929 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 15:04:55,437 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:04:55,469 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-08 15:04:55,470 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 15:04:55,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [851720398] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:04:55,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 15:04:55,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-08 15:04:55,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479205813] [2024-11-08 15:04:55,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:04:55,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:04:55,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:04:55,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:04:55,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-08 15:04:55,476 INFO L87 Difference]: Start difference. First operand 320 states and 480 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 15:04:55,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:04:55,529 INFO L93 Difference]: Finished difference Result 485 states and 711 transitions. [2024-11-08 15:04:55,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:04:55,530 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 93 [2024-11-08 15:04:55,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:04:55,535 INFO L225 Difference]: With dead ends: 485 [2024-11-08 15:04:55,535 INFO L226 Difference]: Without dead ends: 323 [2024-11-08 15:04:55,536 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-08 15:04:55,539 INFO L432 NwaCegarLoop]: 478 mSDtfsCounter, 1 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 954 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:04:55,539 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 954 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:04:55,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2024-11-08 15:04:55,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 322. [2024-11-08 15:04:55,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 255 states have (on average 1.5176470588235293) internal successors, (387), 256 states have internal predecessors, (387), 48 states have call successors, (48), 18 states have call predecessors, (48), 18 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-08 15:04:55,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 482 transitions. [2024-11-08 15:04:55,575 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 482 transitions. Word has length 93 [2024-11-08 15:04:55,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:04:55,576 INFO L471 AbstractCegarLoop]: Abstraction has 322 states and 482 transitions. [2024-11-08 15:04:55,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 15:04:55,577 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 482 transitions. [2024-11-08 15:04:55,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-08 15:04:55,579 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:04:55,580 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:04:55,601 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 15:04:55,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-08 15:04:55,781 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:04:55,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:04:55,781 INFO L85 PathProgramCache]: Analyzing trace with hash 301090512, now seen corresponding path program 1 times [2024-11-08 15:04:55,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:04:55,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203075672] [2024-11-08 15:04:55,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:04:55,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:04:55,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:55,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:04:55,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:55,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:04:55,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:55,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:04:55,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:56,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-08 15:04:56,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:56,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-08 15:04:56,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:56,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 15:04:56,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:56,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-08 15:04:56,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:56,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 15:04:56,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:56,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 15:04:56,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:56,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 15:04:56,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:56,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 15:04:56,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:56,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-08 15:04:56,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:56,056 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-08 15:04:56,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:04:56,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203075672] [2024-11-08 15:04:56,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203075672] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:04:56,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [44016118] [2024-11-08 15:04:56,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:04:56,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:04:56,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:04:56,063 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 15:04:56,064 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 15:04:56,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:56,344 INFO L255 TraceCheckSpWp]: Trace formula consists of 954 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 15:04:56,349 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:04:56,398 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-08 15:04:56,398 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 15:04:56,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [44016118] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:04:56,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 15:04:56,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-08 15:04:56,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342206531] [2024-11-08 15:04:56,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:04:56,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:04:56,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:04:56,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:04:56,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-08 15:04:56,401 INFO L87 Difference]: Start difference. First operand 322 states and 482 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 15:04:56,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:04:56,434 INFO L93 Difference]: Finished difference Result 679 states and 1031 transitions. [2024-11-08 15:04:56,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:04:56,436 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 102 [2024-11-08 15:04:56,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:04:56,439 INFO L225 Difference]: With dead ends: 679 [2024-11-08 15:04:56,440 INFO L226 Difference]: Without dead ends: 384 [2024-11-08 15:04:56,442 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 [2024-11-08 15:04:56,444 INFO L432 NwaCegarLoop]: 486 mSDtfsCounter, 115 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 919 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:04:56,445 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 919 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:04:56,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2024-11-08 15:04:56,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 376. [2024-11-08 15:04:56,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 298 states have (on average 1.5335570469798658) internal successors, (457), 299 states have internal predecessors, (457), 59 states have call successors, (59), 18 states have call predecessors, (59), 18 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-08 15:04:56,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 574 transitions. [2024-11-08 15:04:56,478 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 574 transitions. Word has length 102 [2024-11-08 15:04:56,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:04:56,478 INFO L471 AbstractCegarLoop]: Abstraction has 376 states and 574 transitions. [2024-11-08 15:04:56,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 15:04:56,479 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 574 transitions. [2024-11-08 15:04:56,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-08 15:04:56,481 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:04:56,481 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:04:56,500 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 15:04:56,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:04:56,682 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:04:56,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:04:56,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1534344120, now seen corresponding path program 1 times [2024-11-08 15:04:56,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:04:56,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140754686] [2024-11-08 15:04:56,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:04:56,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:04:56,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:56,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:04:56,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:56,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:04:56,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:56,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:04:56,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:56,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-08 15:04:56,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:56,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-08 15:04:56,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:56,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 15:04:56,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:56,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-08 15:04:56,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:56,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-08 15:04:56,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:56,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-08 15:04:56,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:56,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 15:04:56,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:56,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 15:04:56,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:56,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 15:04:56,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:56,888 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-08 15:04:56,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:04:56,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140754686] [2024-11-08 15:04:56,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140754686] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:04:56,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [361300914] [2024-11-08 15:04:56,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:04:56,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:04:56,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:04:56,891 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 15:04:56,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 15:04:57,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:57,170 INFO L255 TraceCheckSpWp]: Trace formula consists of 959 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 15:04:57,173 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:04:57,236 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-08 15:04:57,236 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 15:04:57,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [361300914] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:04:57,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 15:04:57,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-11-08 15:04:57,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547759247] [2024-11-08 15:04:57,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:04:57,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 15:04:57,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:04:57,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 15:04:57,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-08 15:04:57,239 INFO L87 Difference]: Start difference. First operand 376 states and 574 transitions. Second operand has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-08 15:04:57,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:04:57,328 INFO L93 Difference]: Finished difference Result 743 states and 1138 transitions. [2024-11-08 15:04:57,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 15:04:57,329 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 103 [2024-11-08 15:04:57,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:04:57,334 INFO L225 Difference]: With dead ends: 743 [2024-11-08 15:04:57,335 INFO L226 Difference]: Without dead ends: 378 [2024-11-08 15:04:57,336 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 [2024-11-08 15:04:57,337 INFO L432 NwaCegarLoop]: 472 mSDtfsCounter, 2 mSDsluCounter, 1405 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1877 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:04:57,337 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1877 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:04:57,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2024-11-08 15:04:57,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 378. [2024-11-08 15:04:57,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 299 states have (on average 1.5317725752508362) internal successors, (458), 301 states have internal predecessors, (458), 59 states have call successors, (59), 18 states have call predecessors, (59), 19 states have return successors, (60), 58 states have call predecessors, (60), 58 states have call successors, (60) [2024-11-08 15:04:57,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 577 transitions. [2024-11-08 15:04:57,360 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 577 transitions. Word has length 103 [2024-11-08 15:04:57,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:04:57,360 INFO L471 AbstractCegarLoop]: Abstraction has 378 states and 577 transitions. [2024-11-08 15:04:57,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-08 15:04:57,361 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 577 transitions. [2024-11-08 15:04:57,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-08 15:04:57,363 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:04:57,364 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2024-11-08 15:04:57,383 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-08 15:04:57,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:04:57,565 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:04:57,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:04:57,565 INFO L85 PathProgramCache]: Analyzing trace with hash -2047083558, now seen corresponding path program 1 times [2024-11-08 15:04:57,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:04:57,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499342083] [2024-11-08 15:04:57,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:04:57,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:04:57,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:57,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:04:57,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:57,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:04:57,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:57,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:04:57,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:57,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:04:57,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:57,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-08 15:04:57,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:57,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 15:04:57,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:57,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 15:04:57,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:57,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-08 15:04:57,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:57,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-08 15:04:57,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:57,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 15:04:57,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:57,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 15:04:57,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:57,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-08 15:04:57,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:57,801 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-08 15:04:57,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:04:57,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499342083] [2024-11-08 15:04:57,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499342083] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:04:57,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2105783345] [2024-11-08 15:04:57,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:04:57,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:04:57,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:04:57,805 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 15:04:57,807 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 15:04:58,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:58,064 INFO L255 TraceCheckSpWp]: Trace formula consists of 960 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 15:04:58,067 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:04:58,127 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-08 15:04:58,127 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 15:04:58,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2105783345] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:04:58,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 15:04:58,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-11-08 15:04:58,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852276870] [2024-11-08 15:04:58,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:04:58,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 15:04:58,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:04:58,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 15:04:58,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-08 15:04:58,130 INFO L87 Difference]: Start difference. First operand 378 states and 577 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-08 15:04:58,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:04:58,198 INFO L93 Difference]: Finished difference Result 745 states and 1143 transitions. [2024-11-08 15:04:58,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 15:04:58,199 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 104 [2024-11-08 15:04:58,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:04:58,202 INFO L225 Difference]: With dead ends: 745 [2024-11-08 15:04:58,203 INFO L226 Difference]: Without dead ends: 380 [2024-11-08 15:04:58,205 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 [2024-11-08 15:04:58,206 INFO L432 NwaCegarLoop]: 470 mSDtfsCounter, 2 mSDsluCounter, 1393 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1863 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:04:58,206 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1863 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:04:58,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2024-11-08 15:04:58,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 380. [2024-11-08 15:04:58,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 300 states have (on average 1.53) internal successors, (459), 303 states have internal predecessors, (459), 59 states have call successors, (59), 18 states have call predecessors, (59), 20 states have return successors, (65), 58 states have call predecessors, (65), 58 states have call successors, (65) [2024-11-08 15:04:58,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 583 transitions. [2024-11-08 15:04:58,250 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 583 transitions. Word has length 104 [2024-11-08 15:04:58,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:04:58,251 INFO L471 AbstractCegarLoop]: Abstraction has 380 states and 583 transitions. [2024-11-08 15:04:58,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-08 15:04:58,251 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 583 transitions. [2024-11-08 15:04:58,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-08 15:04:58,253 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:04:58,254 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] [2024-11-08 15:04:58,272 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-08 15:04:58,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:04:58,455 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:04:58,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:04:58,455 INFO L85 PathProgramCache]: Analyzing trace with hash -901344032, now seen corresponding path program 1 times [2024-11-08 15:04:58,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:04:58,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942522603] [2024-11-08 15:04:58,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:04:58,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:04:58,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:58,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:04:58,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:58,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:04:58,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:58,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:04:58,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:58,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:04:58,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:58,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:04:58,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:58,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 15:04:58,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:58,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 15:04:58,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:58,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 15:04:58,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:58,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 15:04:58,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:58,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-08 15:04:58,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:58,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-08 15:04:58,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:58,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-08 15:04:58,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:04:58,675 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-08 15:04:58,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:04:58,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942522603] [2024-11-08 15:04:58,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942522603] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:04:58,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:04:58,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 15:04:58,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81171096] [2024-11-08 15:04:58,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:04:58,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 15:04:58,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:04:58,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 15:04:58,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-08 15:04:58,677 INFO L87 Difference]: Start difference. First operand 380 states and 583 transitions. Second operand has 9 states, 8 states have (on average 8.125) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-08 15:05:00,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:05:00,911 INFO L93 Difference]: Finished difference Result 925 states and 1432 transitions. [2024-11-08 15:05:00,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 15:05:00,911 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.125) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 105 [2024-11-08 15:05:00,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:05:00,916 INFO L225 Difference]: With dead ends: 925 [2024-11-08 15:05:00,916 INFO L226 Difference]: Without dead ends: 568 [2024-11-08 15:05:00,917 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-08 15:05:00,919 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 1049 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 2665 mSolverCounterSat, 304 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1050 SdHoareTripleChecker+Valid, 1171 SdHoareTripleChecker+Invalid, 2969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 304 IncrementalHoareTripleChecker+Valid, 2665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-08 15:05:00,920 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1050 Valid, 1171 Invalid, 2969 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [304 Valid, 2665 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-08 15:05:00,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2024-11-08 15:05:00,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 380. [2024-11-08 15:05:00,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 300 states have (on average 1.53) internal successors, (459), 303 states have internal predecessors, (459), 59 states have call successors, (59), 18 states have call predecessors, (59), 20 states have return successors, (64), 58 states have call predecessors, (64), 58 states have call successors, (64) [2024-11-08 15:05:00,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 582 transitions. [2024-11-08 15:05:00,994 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 582 transitions. Word has length 105 [2024-11-08 15:05:00,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:05:00,996 INFO L471 AbstractCegarLoop]: Abstraction has 380 states and 582 transitions. [2024-11-08 15:05:00,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.125) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-08 15:05:00,996 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 582 transitions. [2024-11-08 15:05:00,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-08 15:05:01,000 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:05:01,000 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] [2024-11-08 15:05:01,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 15:05:01,000 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:05:01,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:05:01,001 INFO L85 PathProgramCache]: Analyzing trace with hash 2004978448, now seen corresponding path program 2 times [2024-11-08 15:05:01,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:05:01,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630784927] [2024-11-08 15:05:01,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:05:01,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:05:01,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:01,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:05:01,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:01,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:05:01,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:01,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:05:01,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:01,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:05:01,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:01,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:05:01,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:01,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 15:05:01,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:01,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 15:05:01,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:01,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 15:05:01,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:01,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-08 15:05:01,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:01,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-08 15:05:01,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:01,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-08 15:05:01,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:01,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 15:05:01,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:01,180 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-08 15:05:01,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:05:01,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630784927] [2024-11-08 15:05:01,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630784927] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:05:01,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:05:01,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 15:05:01,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508860465] [2024-11-08 15:05:01,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:05:01,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 15:05:01,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:05:01,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 15:05:01,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-08 15:05:01,182 INFO L87 Difference]: Start difference. First operand 380 states and 582 transitions. Second operand has 9 states, 8 states have (on average 8.25) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-08 15:05:03,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:05:03,150 INFO L93 Difference]: Finished difference Result 927 states and 1435 transitions. [2024-11-08 15:05:03,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 15:05:03,151 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.25) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 106 [2024-11-08 15:05:03,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:05:03,155 INFO L225 Difference]: With dead ends: 927 [2024-11-08 15:05:03,155 INFO L226 Difference]: Without dead ends: 570 [2024-11-08 15:05:03,157 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-08 15:05:03,157 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 1045 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 2676 mSolverCounterSat, 304 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1046 SdHoareTripleChecker+Valid, 1171 SdHoareTripleChecker+Invalid, 2980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 304 IncrementalHoareTripleChecker+Valid, 2676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-08 15:05:03,158 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1046 Valid, 1171 Invalid, 2980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [304 Valid, 2676 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-08 15:05:03,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2024-11-08 15:05:03,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 382. [2024-11-08 15:05:03,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 301 states have (on average 1.5282392026578073) internal successors, (460), 305 states have internal predecessors, (460), 59 states have call successors, (59), 18 states have call predecessors, (59), 21 states have return successors, (66), 58 states have call predecessors, (66), 58 states have call successors, (66) [2024-11-08 15:05:03,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 585 transitions. [2024-11-08 15:05:03,195 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 585 transitions. Word has length 106 [2024-11-08 15:05:03,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:05:03,196 INFO L471 AbstractCegarLoop]: Abstraction has 382 states and 585 transitions. [2024-11-08 15:05:03,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.25) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-08 15:05:03,196 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 585 transitions. [2024-11-08 15:05:03,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-08 15:05:03,198 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:05:03,198 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] [2024-11-08 15:05:03,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 15:05:03,199 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:05:03,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:05:03,199 INFO L85 PathProgramCache]: Analyzing trace with hash -511714523, now seen corresponding path program 1 times [2024-11-08 15:05:03,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:05:03,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94130905] [2024-11-08 15:05:03,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:05:03,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:05:03,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:03,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:05:03,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:03,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:05:03,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:03,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:05:03,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:03,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:05:03,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:03,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:05:03,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:03,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:05:03,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:03,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 15:05:03,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:03,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-08 15:05:03,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:03,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 15:05:03,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:03,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 15:05:03,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:03,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 15:05:03,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:03,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-08 15:05:03,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:03,489 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-08 15:05:03,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:05:03,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94130905] [2024-11-08 15:05:03,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94130905] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:05:03,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:05:03,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-08 15:05:03,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493897604] [2024-11-08 15:05:03,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:05:03,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 15:05:03,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:05:03,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 15:05:03,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-08 15:05:03,491 INFO L87 Difference]: Start difference. First operand 382 states and 585 transitions. Second operand has 12 states, 11 states have (on average 6.363636363636363) internal successors, (70), 8 states have internal predecessors, (70), 4 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-08 15:05:06,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:05:06,082 INFO L93 Difference]: Finished difference Result 925 states and 1430 transitions. [2024-11-08 15:05:06,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 15:05:06,083 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.363636363636363) internal successors, (70), 8 states have internal predecessors, (70), 4 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 107 [2024-11-08 15:05:06,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:05:06,087 INFO L225 Difference]: With dead ends: 925 [2024-11-08 15:05:06,087 INFO L226 Difference]: Without dead ends: 570 [2024-11-08 15:05:06,089 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-11-08 15:05:06,089 INFO L432 NwaCegarLoop]: 184 mSDtfsCounter, 1049 mSDsluCounter, 1438 mSDsCounter, 0 mSdLazyCounter, 4416 mSolverCounterSat, 310 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1050 SdHoareTripleChecker+Valid, 1622 SdHoareTripleChecker+Invalid, 4726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 310 IncrementalHoareTripleChecker+Valid, 4416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-08 15:05:06,090 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1050 Valid, 1622 Invalid, 4726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [310 Valid, 4416 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-08 15:05:06,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2024-11-08 15:05:06,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 382. [2024-11-08 15:05:06,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 301 states have (on average 1.5282392026578073) internal successors, (460), 305 states have internal predecessors, (460), 59 states have call successors, (59), 18 states have call predecessors, (59), 21 states have return successors, (65), 58 states have call predecessors, (65), 58 states have call successors, (65) [2024-11-08 15:05:06,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 584 transitions. [2024-11-08 15:05:06,120 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 584 transitions. Word has length 107 [2024-11-08 15:05:06,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:05:06,120 INFO L471 AbstractCegarLoop]: Abstraction has 382 states and 584 transitions. [2024-11-08 15:05:06,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.363636363636363) internal successors, (70), 8 states have internal predecessors, (70), 4 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-08 15:05:06,121 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 584 transitions. [2024-11-08 15:05:06,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-08 15:05:06,122 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:05:06,122 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:05:06,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 15:05:06,123 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:05:06,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:05:06,123 INFO L85 PathProgramCache]: Analyzing trace with hash -398431873, now seen corresponding path program 2 times [2024-11-08 15:05:06,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:05:06,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272495801] [2024-11-08 15:05:06,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:05:06,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:05:06,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:06,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:05:06,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:06,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:05:06,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:06,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:05:06,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:06,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:05:06,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:06,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:05:06,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:06,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:05:06,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:06,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-08 15:05:06,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:06,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 15:05:06,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:06,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 15:05:06,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:06,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 15:05:06,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:06,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 15:05:06,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:06,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-08 15:05:06,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:06,366 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-08 15:05:06,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:05:06,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272495801] [2024-11-08 15:05:06,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272495801] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:05:06,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:05:06,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-08 15:05:06,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295852070] [2024-11-08 15:05:06,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:05:06,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 15:05:06,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:05:06,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 15:05:06,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-08 15:05:06,368 INFO L87 Difference]: Start difference. First operand 382 states and 584 transitions. Second operand has 12 states, 11 states have (on average 6.454545454545454) internal successors, (71), 8 states have internal predecessors, (71), 4 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-08 15:05:08,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:05:08,748 INFO L93 Difference]: Finished difference Result 927 states and 1436 transitions. [2024-11-08 15:05:08,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 15:05:08,748 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.454545454545454) internal successors, (71), 8 states have internal predecessors, (71), 4 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 108 [2024-11-08 15:05:08,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:05:08,753 INFO L225 Difference]: With dead ends: 927 [2024-11-08 15:05:08,753 INFO L226 Difference]: Without dead ends: 572 [2024-11-08 15:05:08,755 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-11-08 15:05:08,755 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 1044 mSDsluCounter, 1438 mSDsCounter, 0 mSdLazyCounter, 4484 mSolverCounterSat, 305 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1045 SdHoareTripleChecker+Valid, 1624 SdHoareTripleChecker+Invalid, 4789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 305 IncrementalHoareTripleChecker+Valid, 4484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:05:08,755 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1045 Valid, 1624 Invalid, 4789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [305 Valid, 4484 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-08 15:05:08,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2024-11-08 15:05:08,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 384. [2024-11-08 15:05:08,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 302 states have (on average 1.5264900662251655) internal successors, (461), 307 states have internal predecessors, (461), 59 states have call successors, (59), 18 states have call predecessors, (59), 22 states have return successors, (70), 58 states have call predecessors, (70), 58 states have call successors, (70) [2024-11-08 15:05:08,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 590 transitions. [2024-11-08 15:05:08,788 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 590 transitions. Word has length 108 [2024-11-08 15:05:08,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:05:08,789 INFO L471 AbstractCegarLoop]: Abstraction has 384 states and 590 transitions. [2024-11-08 15:05:08,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.454545454545454) internal successors, (71), 8 states have internal predecessors, (71), 4 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-08 15:05:08,789 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 590 transitions. [2024-11-08 15:05:08,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-08 15:05:08,791 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:05:08,791 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] [2024-11-08 15:05:08,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 15:05:08,792 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:05:08,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:05:08,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1045364330, now seen corresponding path program 1 times [2024-11-08 15:05:08,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:05:08,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952280272] [2024-11-08 15:05:08,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:05:08,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:05:08,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:08,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:05:08,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:09,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:05:09,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:09,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:05:09,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:09,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:05:09,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:09,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:05:09,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:09,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:05:09,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:09,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-08 15:05:09,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:09,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-08 15:05:09,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:09,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-08 15:05:09,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:09,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 15:05:09,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:09,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-08 15:05:09,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:09,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 15:05:09,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:09,098 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-08 15:05:09,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:05:09,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952280272] [2024-11-08 15:05:09,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952280272] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:05:09,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [167644908] [2024-11-08 15:05:09,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:05:09,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:05:09,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:05:09,101 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 15:05:09,103 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 15:05:09,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:09,367 INFO L255 TraceCheckSpWp]: Trace formula consists of 965 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 15:05:09,370 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:05:09,412 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-08 15:05:09,413 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 15:05:09,515 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-08 15:05:09,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [167644908] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 15:05:09,516 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 15:05:09,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2024-11-08 15:05:09,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210829358] [2024-11-08 15:05:09,516 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 15:05:09,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-08 15:05:09,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:05:09,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-08 15:05:09,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-11-08 15:05:09,518 INFO L87 Difference]: Start difference. First operand 384 states and 590 transitions. Second operand has 15 states, 14 states have (on average 8.428571428571429) internal successors, (118), 11 states have internal predecessors, (118), 4 states have call successors, (29), 6 states have call predecessors, (29), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2024-11-08 15:05:12,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:05:12,530 INFO L93 Difference]: Finished difference Result 1302 states and 2108 transitions. [2024-11-08 15:05:12,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-08 15:05:12,530 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 8.428571428571429) internal successors, (118), 11 states have internal predecessors, (118), 4 states have call successors, (29), 6 states have call predecessors, (29), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) Word has length 109 [2024-11-08 15:05:12,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:05:12,536 INFO L225 Difference]: With dead ends: 1302 [2024-11-08 15:05:12,536 INFO L226 Difference]: Without dead ends: 949 [2024-11-08 15:05:12,538 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=164, Invalid=828, Unknown=0, NotChecked=0, Total=992 [2024-11-08 15:05:12,539 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 2021 mSDsluCounter, 1796 mSDsCounter, 0 mSdLazyCounter, 5505 mSolverCounterSat, 619 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2038 SdHoareTripleChecker+Valid, 1972 SdHoareTripleChecker+Invalid, 6124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 619 IncrementalHoareTripleChecker+Valid, 5505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-08 15:05:12,539 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2038 Valid, 1972 Invalid, 6124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [619 Valid, 5505 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-08 15:05:12,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 949 states. [2024-11-08 15:05:12,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 949 to 737. [2024-11-08 15:05:12,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 737 states, 591 states have (on average 1.5769881556683587) internal successors, (932), 596 states have internal predecessors, (932), 123 states have call successors, (123), 18 states have call predecessors, (123), 22 states have return successors, (144), 122 states have call predecessors, (144), 122 states have call successors, (144) [2024-11-08 15:05:12,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 737 states to 737 states and 1199 transitions. [2024-11-08 15:05:12,610 INFO L78 Accepts]: Start accepts. Automaton has 737 states and 1199 transitions. Word has length 109 [2024-11-08 15:05:12,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:05:12,611 INFO L471 AbstractCegarLoop]: Abstraction has 737 states and 1199 transitions. [2024-11-08 15:05:12,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 8.428571428571429) internal successors, (118), 11 states have internal predecessors, (118), 4 states have call successors, (29), 6 states have call predecessors, (29), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2024-11-08 15:05:12,611 INFO L276 IsEmpty]: Start isEmpty. Operand 737 states and 1199 transitions. [2024-11-08 15:05:12,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-08 15:05:12,614 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:05:12,615 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:05:12,634 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-08 15:05:12,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:05:12,816 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:05:12,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:05:12,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1541068949, now seen corresponding path program 1 times [2024-11-08 15:05:12,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:05:12,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600209293] [2024-11-08 15:05:12,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:05:12,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:05:12,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:12,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:05:12,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:12,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:05:12,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:12,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:05:12,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:12,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:05:12,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:12,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:05:12,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:12,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:05:12,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:12,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-08 15:05:12,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:12,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-08 15:05:12,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:12,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 15:05:12,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:12,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-08 15:05:12,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:12,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-08 15:05:12,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:12,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 15:05:12,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:12,941 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-08 15:05:12,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:05:12,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600209293] [2024-11-08 15:05:12,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600209293] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:05:12,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:05:12,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:05:12,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692411437] [2024-11-08 15:05:12,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:05:12,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:05:12,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:05:12,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:05:12,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:05:12,943 INFO L87 Difference]: Start difference. First operand 737 states and 1199 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 15:05:14,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:05:14,398 INFO L93 Difference]: Finished difference Result 1917 states and 3187 transitions. [2024-11-08 15:05:14,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 15:05:14,398 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 112 [2024-11-08 15:05:14,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:05:14,405 INFO L225 Difference]: With dead ends: 1917 [2024-11-08 15:05:14,405 INFO L226 Difference]: Without dead ends: 1258 [2024-11-08 15:05:14,408 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-08 15:05:14,409 INFO L432 NwaCegarLoop]: 205 mSDtfsCounter, 1155 mSDsluCounter, 688 mSDsCounter, 0 mSdLazyCounter, 1583 mSolverCounterSat, 358 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1170 SdHoareTripleChecker+Valid, 893 SdHoareTripleChecker+Invalid, 1941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 358 IncrementalHoareTripleChecker+Valid, 1583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-08 15:05:14,409 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1170 Valid, 893 Invalid, 1941 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [358 Valid, 1583 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-08 15:05:14,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1258 states. [2024-11-08 15:05:14,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1258 to 1062. [2024-11-08 15:05:14,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1062 states, 852 states have (on average 1.5927230046948357) internal successors, (1357), 857 states have internal predecessors, (1357), 187 states have call successors, (187), 18 states have call predecessors, (187), 22 states have return successors, (218), 186 states have call predecessors, (218), 186 states have call successors, (218) [2024-11-08 15:05:14,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1062 states to 1062 states and 1762 transitions. [2024-11-08 15:05:14,466 INFO L78 Accepts]: Start accepts. Automaton has 1062 states and 1762 transitions. Word has length 112 [2024-11-08 15:05:14,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:05:14,466 INFO L471 AbstractCegarLoop]: Abstraction has 1062 states and 1762 transitions. [2024-11-08 15:05:14,466 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 15:05:14,467 INFO L276 IsEmpty]: Start isEmpty. Operand 1062 states and 1762 transitions. [2024-11-08 15:05:14,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-08 15:05:14,471 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:05:14,471 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:05:14,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 15:05:14,472 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:05:14,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:05:14,472 INFO L85 PathProgramCache]: Analyzing trace with hash -310172690, now seen corresponding path program 1 times [2024-11-08 15:05:14,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:05:14,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347626917] [2024-11-08 15:05:14,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:05:14,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:05:14,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:14,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:05:14,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:14,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:05:14,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:14,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:05:14,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:14,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:05:14,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:14,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:05:14,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:14,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:05:14,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:14,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 15:05:14,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:14,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-08 15:05:14,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:14,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 15:05:14,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:14,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 15:05:14,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:14,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 15:05:14,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:14,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-08 15:05:14,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:14,591 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-08 15:05:14,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:05:14,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347626917] [2024-11-08 15:05:14,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347626917] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:05:14,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:05:14,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:05:14,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175060075] [2024-11-08 15:05:14,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:05:14,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:05:14,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:05:14,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:05:14,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:05:14,593 INFO L87 Difference]: Start difference. First operand 1062 states and 1762 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 15:05:16,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:05:16,160 INFO L93 Difference]: Finished difference Result 2722 states and 4571 transitions. [2024-11-08 15:05:16,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 15:05:16,160 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 113 [2024-11-08 15:05:16,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:05:16,171 INFO L225 Difference]: With dead ends: 2722 [2024-11-08 15:05:16,171 INFO L226 Difference]: Without dead ends: 1791 [2024-11-08 15:05:16,176 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-08 15:05:16,177 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 1153 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 1535 mSolverCounterSat, 362 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1168 SdHoareTripleChecker+Valid, 854 SdHoareTripleChecker+Invalid, 1897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 362 IncrementalHoareTripleChecker+Valid, 1535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-08 15:05:16,177 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1168 Valid, 854 Invalid, 1897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [362 Valid, 1535 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-08 15:05:16,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1791 states. [2024-11-08 15:05:16,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1791 to 1595. [2024-11-08 15:05:16,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1595 states, 1290 states have (on average 1.5992248062015504) internal successors, (2063), 1295 states have internal predecessors, (2063), 282 states have call successors, (282), 18 states have call predecessors, (282), 22 states have return successors, (313), 281 states have call predecessors, (313), 281 states have call successors, (313) [2024-11-08 15:05:16,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1595 states to 1595 states and 2658 transitions. [2024-11-08 15:05:16,261 INFO L78 Accepts]: Start accepts. Automaton has 1595 states and 2658 transitions. Word has length 113 [2024-11-08 15:05:16,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:05:16,262 INFO L471 AbstractCegarLoop]: Abstraction has 1595 states and 2658 transitions. [2024-11-08 15:05:16,262 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 15:05:16,262 INFO L276 IsEmpty]: Start isEmpty. Operand 1595 states and 2658 transitions. [2024-11-08 15:05:16,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-08 15:05:16,269 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:05:16,269 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:05:16,269 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 15:05:16,270 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:05:16,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:05:16,270 INFO L85 PathProgramCache]: Analyzing trace with hash -830066777, now seen corresponding path program 1 times [2024-11-08 15:05:16,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:05:16,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608279398] [2024-11-08 15:05:16,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:05:16,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:05:16,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:16,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:05:16,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:16,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:05:16,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:16,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:05:16,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:16,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:05:16,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:16,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:05:16,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:16,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:05:16,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:16,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-08 15:05:16,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:16,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 15:05:16,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:16,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 15:05:16,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:16,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 15:05:16,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:16,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-08 15:05:16,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:16,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-08 15:05:16,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:16,422 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-08 15:05:16,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:05:16,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608279398] [2024-11-08 15:05:16,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608279398] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:05:16,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:05:16,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:05:16,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536690803] [2024-11-08 15:05:16,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:05:16,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:05:16,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:05:16,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:05:16,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:05:16,425 INFO L87 Difference]: Start difference. First operand 1595 states and 2658 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 15:05:17,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:05:17,831 INFO L93 Difference]: Finished difference Result 3929 states and 6657 transitions. [2024-11-08 15:05:17,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 15:05:17,832 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 114 [2024-11-08 15:05:17,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:05:17,848 INFO L225 Difference]: With dead ends: 3929 [2024-11-08 15:05:17,848 INFO L226 Difference]: Without dead ends: 2600 [2024-11-08 15:05:17,854 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-08 15:05:17,855 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 1152 mSDsluCounter, 667 mSDsCounter, 0 mSdLazyCounter, 1527 mSolverCounterSat, 356 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1167 SdHoareTripleChecker+Valid, 853 SdHoareTripleChecker+Invalid, 1883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 356 IncrementalHoareTripleChecker+Valid, 1527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-08 15:05:17,855 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1167 Valid, 853 Invalid, 1883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [356 Valid, 1527 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-08 15:05:17,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2600 states. [2024-11-08 15:05:17,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2600 to 2404. [2024-11-08 15:05:17,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2404 states, 1976 states have (on average 1.604251012145749) internal successors, (3170), 1981 states have internal predecessors, (3170), 405 states have call successors, (405), 18 states have call predecessors, (405), 22 states have return successors, (452), 404 states have call predecessors, (452), 404 states have call successors, (452) [2024-11-08 15:05:17,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2404 states to 2404 states and 4027 transitions. [2024-11-08 15:05:17,972 INFO L78 Accepts]: Start accepts. Automaton has 2404 states and 4027 transitions. Word has length 114 [2024-11-08 15:05:17,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:05:17,973 INFO L471 AbstractCegarLoop]: Abstraction has 2404 states and 4027 transitions. [2024-11-08 15:05:17,973 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 15:05:17,973 INFO L276 IsEmpty]: Start isEmpty. Operand 2404 states and 4027 transitions. [2024-11-08 15:05:18,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-08 15:05:18,006 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:05:18,006 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:05:18,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 15:05:18,006 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:05:18,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:05:18,007 INFO L85 PathProgramCache]: Analyzing trace with hash 528342989, now seen corresponding path program 1 times [2024-11-08 15:05:18,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:05:18,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478054520] [2024-11-08 15:05:18,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:05:18,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:05:18,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:18,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:05:18,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:18,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:05:18,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:18,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:05:18,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:18,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:05:18,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:18,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:05:18,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:18,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:05:18,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:18,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-08 15:05:18,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:18,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-08 15:05:18,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:18,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-08 15:05:18,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:18,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-08 15:05:18,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:18,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-08 15:05:18,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:18,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-08 15:05:18,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:18,122 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-08 15:05:18,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:05:18,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478054520] [2024-11-08 15:05:18,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478054520] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:05:18,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:05:18,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:05:18,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424745451] [2024-11-08 15:05:18,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:05:18,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:05:18,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:05:18,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:05:18,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:05:18,124 INFO L87 Difference]: Start difference. First operand 2404 states and 4027 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 15:05:19,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:05:19,431 INFO L93 Difference]: Finished difference Result 5813 states and 9917 transitions. [2024-11-08 15:05:19,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 15:05:19,431 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 115 [2024-11-08 15:05:19,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:05:19,451 INFO L225 Difference]: With dead ends: 5813 [2024-11-08 15:05:19,451 INFO L226 Difference]: Without dead ends: 3894 [2024-11-08 15:05:19,457 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-08 15:05:19,458 INFO L432 NwaCegarLoop]: 188 mSDtfsCounter, 1149 mSDsluCounter, 667 mSDsCounter, 0 mSdLazyCounter, 1543 mSolverCounterSat, 354 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1164 SdHoareTripleChecker+Valid, 855 SdHoareTripleChecker+Invalid, 1897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 354 IncrementalHoareTripleChecker+Valid, 1543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:05:19,458 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1164 Valid, 855 Invalid, 1897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [354 Valid, 1543 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-08 15:05:19,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3894 states. [2024-11-08 15:05:19,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3894 to 3698. [2024-11-08 15:05:19,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3698 states, 3091 states have (on average 1.6072468456810094) internal successors, (4968), 3096 states have internal predecessors, (4968), 584 states have call successors, (584), 18 states have call predecessors, (584), 22 states have return successors, (657), 583 states have call predecessors, (657), 583 states have call successors, (657) [2024-11-08 15:05:19,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3698 states to 3698 states and 6209 transitions. [2024-11-08 15:05:19,637 INFO L78 Accepts]: Start accepts. Automaton has 3698 states and 6209 transitions. Word has length 115 [2024-11-08 15:05:19,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:05:19,638 INFO L471 AbstractCegarLoop]: Abstraction has 3698 states and 6209 transitions. [2024-11-08 15:05:19,638 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 15:05:19,638 INFO L276 IsEmpty]: Start isEmpty. Operand 3698 states and 6209 transitions. [2024-11-08 15:05:19,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-08 15:05:19,647 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:05:19,647 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:05:19,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 15:05:19,647 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:05:19,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:05:19,648 INFO L85 PathProgramCache]: Analyzing trace with hash -2011957557, now seen corresponding path program 1 times [2024-11-08 15:05:19,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:05:19,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143827241] [2024-11-08 15:05:19,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:05:19,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:05:19,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:19,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:05:19,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:19,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:05:19,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:19,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:05:19,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:19,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:05:19,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:19,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:05:19,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:19,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:05:19,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:19,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 15:05:19,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:19,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 15:05:19,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:19,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-08 15:05:19,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:19,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 15:05:19,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:19,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 15:05:19,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:19,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-08 15:05:19,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:19,758 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-08 15:05:19,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:05:19,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143827241] [2024-11-08 15:05:19,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143827241] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:05:19,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:05:19,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:05:19,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145307687] [2024-11-08 15:05:19,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:05:19,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:05:19,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:05:19,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:05:19,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:05:19,760 INFO L87 Difference]: Start difference. First operand 3698 states and 6209 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 15:05:21,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:05:21,171 INFO L93 Difference]: Finished difference Result 8916 states and 15281 transitions. [2024-11-08 15:05:21,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 15:05:21,173 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 116 [2024-11-08 15:05:21,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:05:21,205 INFO L225 Difference]: With dead ends: 8916 [2024-11-08 15:05:21,205 INFO L226 Difference]: Without dead ends: 6035 [2024-11-08 15:05:21,217 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-08 15:05:21,218 INFO L432 NwaCegarLoop]: 202 mSDtfsCounter, 1148 mSDsluCounter, 690 mSDsCounter, 0 mSdLazyCounter, 1569 mSolverCounterSat, 364 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1163 SdHoareTripleChecker+Valid, 892 SdHoareTripleChecker+Invalid, 1933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 364 IncrementalHoareTripleChecker+Valid, 1569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:05:21,218 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1163 Valid, 892 Invalid, 1933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [364 Valid, 1569 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-08 15:05:21,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6035 states. [2024-11-08 15:05:21,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6035 to 5839. [2024-11-08 15:05:21,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5839 states, 4856 states have (on average 1.6009060955518946) internal successors, (7774), 4861 states have internal predecessors, (7774), 960 states have call successors, (960), 18 states have call predecessors, (960), 22 states have return successors, (1077), 959 states have call predecessors, (1077), 959 states have call successors, (1077) [2024-11-08 15:05:21,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5839 states to 5839 states and 9811 transitions. [2024-11-08 15:05:21,579 INFO L78 Accepts]: Start accepts. Automaton has 5839 states and 9811 transitions. Word has length 116 [2024-11-08 15:05:21,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:05:21,579 INFO L471 AbstractCegarLoop]: Abstraction has 5839 states and 9811 transitions. [2024-11-08 15:05:21,580 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 15:05:21,583 INFO L276 IsEmpty]: Start isEmpty. Operand 5839 states and 9811 transitions. [2024-11-08 15:05:21,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-08 15:05:21,598 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:05:21,598 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:05:21,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 15:05:21,599 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:05:21,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:05:21,599 INFO L85 PathProgramCache]: Analyzing trace with hash 372580521, now seen corresponding path program 1 times [2024-11-08 15:05:21,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:05:21,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110406602] [2024-11-08 15:05:21,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:05:21,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:05:21,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:21,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:05:21,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:21,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:05:21,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:21,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:05:21,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:21,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:05:21,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:21,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:05:21,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:21,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:05:21,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:21,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-08 15:05:21,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:21,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 15:05:21,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:21,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 15:05:21,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:21,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-08 15:05:21,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:21,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-08 15:05:21,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:21,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-08 15:05:21,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:21,703 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-08 15:05:21,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:05:21,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110406602] [2024-11-08 15:05:21,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110406602] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:05:21,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:05:21,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:05:21,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299047963] [2024-11-08 15:05:21,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:05:21,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:05:21,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:05:21,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:05:21,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:05:21,706 INFO L87 Difference]: Start difference. First operand 5839 states and 9811 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 15:05:23,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:05:23,230 INFO L93 Difference]: Finished difference Result 14533 states and 24894 transitions. [2024-11-08 15:05:23,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 15:05:23,231 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 117 [2024-11-08 15:05:23,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:05:23,297 INFO L225 Difference]: With dead ends: 14533 [2024-11-08 15:05:23,298 INFO L226 Difference]: Without dead ends: 9913 [2024-11-08 15:05:23,317 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-08 15:05:23,317 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 1145 mSDsluCounter, 672 mSDsCounter, 0 mSdLazyCounter, 1549 mSolverCounterSat, 362 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1160 SdHoareTripleChecker+Valid, 863 SdHoareTripleChecker+Invalid, 1911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 362 IncrementalHoareTripleChecker+Valid, 1549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-08 15:05:23,318 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1160 Valid, 863 Invalid, 1911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [362 Valid, 1549 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-08 15:05:23,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9913 states. [2024-11-08 15:05:23,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9913 to 9717. [2024-11-08 15:05:23,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9717 states, 8128 states have (on average 1.5985482283464567) internal successors, (12993), 8133 states have internal predecessors, (12993), 1566 states have call successors, (1566), 18 states have call predecessors, (1566), 22 states have return successors, (1761), 1565 states have call predecessors, (1761), 1565 states have call successors, (1761) [2024-11-08 15:05:23,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9717 states to 9717 states and 16320 transitions. [2024-11-08 15:05:23,819 INFO L78 Accepts]: Start accepts. Automaton has 9717 states and 16320 transitions. Word has length 117 [2024-11-08 15:05:23,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:05:23,820 INFO L471 AbstractCegarLoop]: Abstraction has 9717 states and 16320 transitions. [2024-11-08 15:05:23,821 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 15:05:23,821 INFO L276 IsEmpty]: Start isEmpty. Operand 9717 states and 16320 transitions. [2024-11-08 15:05:23,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-08 15:05:23,836 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:05:23,837 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:05:23,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 15:05:23,837 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:05:23,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:05:23,837 INFO L85 PathProgramCache]: Analyzing trace with hash -528291971, now seen corresponding path program 1 times [2024-11-08 15:05:23,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:05:23,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631161423] [2024-11-08 15:05:23,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:05:23,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:05:23,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:23,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:05:23,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:23,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:05:23,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:23,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:05:23,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:23,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:05:23,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:23,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:05:23,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:23,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:05:23,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:23,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-08 15:05:23,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:23,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-08 15:05:23,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:23,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 15:05:23,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:23,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-08 15:05:23,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:23,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-08 15:05:23,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:23,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-08 15:05:23,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:23,985 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-08 15:05:23,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:05:23,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631161423] [2024-11-08 15:05:23,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631161423] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:05:23,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:05:23,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:05:23,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106671651] [2024-11-08 15:05:23,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:05:23,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:05:23,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:05:23,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:05:23,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:05:23,989 INFO L87 Difference]: Start difference. First operand 9717 states and 16320 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 15:05:25,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:05:25,605 INFO L93 Difference]: Finished difference Result 25242 states and 43175 transitions. [2024-11-08 15:05:25,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 15:05:25,605 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 118 [2024-11-08 15:05:25,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:05:25,672 INFO L225 Difference]: With dead ends: 25242 [2024-11-08 15:05:25,673 INFO L226 Difference]: Without dead ends: 17226 [2024-11-08 15:05:25,705 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-08 15:05:25,706 INFO L432 NwaCegarLoop]: 193 mSDtfsCounter, 1144 mSDsluCounter, 686 mSDsCounter, 0 mSdLazyCounter, 1538 mSolverCounterSat, 364 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1159 SdHoareTripleChecker+Valid, 879 SdHoareTripleChecker+Invalid, 1902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 364 IncrementalHoareTripleChecker+Valid, 1538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:05:25,707 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1159 Valid, 879 Invalid, 1902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [364 Valid, 1538 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-08 15:05:25,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17226 states. [2024-11-08 15:05:26,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17226 to 17030. [2024-11-08 15:05:26,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17030 states, 14238 states have (on average 1.5900407360584352) internal successors, (22639), 14243 states have internal predecessors, (22639), 2769 states have call successors, (2769), 18 states have call predecessors, (2769), 22 states have return successors, (3108), 2768 states have call predecessors, (3108), 2768 states have call successors, (3108) [2024-11-08 15:05:26,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17030 states to 17030 states and 28516 transitions. [2024-11-08 15:05:26,421 INFO L78 Accepts]: Start accepts. Automaton has 17030 states and 28516 transitions. Word has length 118 [2024-11-08 15:05:26,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:05:26,422 INFO L471 AbstractCegarLoop]: Abstraction has 17030 states and 28516 transitions. [2024-11-08 15:05:26,422 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 15:05:26,423 INFO L276 IsEmpty]: Start isEmpty. Operand 17030 states and 28516 transitions. [2024-11-08 15:05:26,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-08 15:05:26,445 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:05:26,445 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:05:26,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 15:05:26,446 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:05:26,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:05:26,446 INFO L85 PathProgramCache]: Analyzing trace with hash -768772248, now seen corresponding path program 1 times [2024-11-08 15:05:26,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:05:26,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498239579] [2024-11-08 15:05:26,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:05:26,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:05:26,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:26,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:05:26,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:26,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:05:26,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:26,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:05:26,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:26,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:05:26,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:26,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:05:26,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:26,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:05:26,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:26,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 15:05:26,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:26,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-08 15:05:26,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:26,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 15:05:26,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:26,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 15:05:26,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:26,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 15:05:26,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:26,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-08 15:05:26,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:26,553 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-08 15:05:26,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:05:26,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498239579] [2024-11-08 15:05:26,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498239579] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:05:26,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:05:26,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:05:26,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105301648] [2024-11-08 15:05:26,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:05:26,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:05:26,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:05:26,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:05:26,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:05:26,556 INFO L87 Difference]: Start difference. First operand 17030 states and 28516 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 15:05:28,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:05:28,359 INFO L93 Difference]: Finished difference Result 45218 states and 77188 transitions. [2024-11-08 15:05:28,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 15:05:28,360 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 119 [2024-11-08 15:05:28,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:05:28,492 INFO L225 Difference]: With dead ends: 45218 [2024-11-08 15:05:28,492 INFO L226 Difference]: Without dead ends: 30566 [2024-11-08 15:05:28,545 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-08 15:05:28,546 INFO L432 NwaCegarLoop]: 188 mSDtfsCounter, 1141 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 1545 mSolverCounterSat, 362 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1156 SdHoareTripleChecker+Valid, 856 SdHoareTripleChecker+Invalid, 1907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 362 IncrementalHoareTripleChecker+Valid, 1545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-08 15:05:28,546 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1156 Valid, 856 Invalid, 1907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [362 Valid, 1545 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-08 15:05:28,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30566 states. [2024-11-08 15:05:30,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30566 to 30370. [2024-11-08 15:05:30,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30370 states, 25539 states have (on average 1.5858882493441404) internal successors, (40502), 25544 states have internal predecessors, (40502), 4808 states have call successors, (4808), 18 states have call predecessors, (4808), 22 states have return successors, (5421), 4807 states have call predecessors, (5421), 4807 states have call successors, (5421) [2024-11-08 15:05:30,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30370 states to 30370 states and 50731 transitions. [2024-11-08 15:05:30,217 INFO L78 Accepts]: Start accepts. Automaton has 30370 states and 50731 transitions. Word has length 119 [2024-11-08 15:05:30,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:05:30,219 INFO L471 AbstractCegarLoop]: Abstraction has 30370 states and 50731 transitions. [2024-11-08 15:05:30,220 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 15:05:30,220 INFO L276 IsEmpty]: Start isEmpty. Operand 30370 states and 50731 transitions. [2024-11-08 15:05:30,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-08 15:05:30,242 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:05:30,242 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:05:30,242 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 15:05:30,242 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:05:30,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:05:30,243 INFO L85 PathProgramCache]: Analyzing trace with hash -168472517, now seen corresponding path program 1 times [2024-11-08 15:05:30,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:05:30,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337308431] [2024-11-08 15:05:30,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:05:30,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:05:30,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:30,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:05:30,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:30,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:05:30,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:30,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:05:30,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:30,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:05:30,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:30,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:05:30,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:30,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:05:30,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:30,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-08 15:05:30,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:30,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 15:05:30,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:30,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 15:05:30,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:30,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-08 15:05:30,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:30,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-08 15:05:30,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:30,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-08 15:05:30,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:30,357 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-08 15:05:30,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:05:30,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337308431] [2024-11-08 15:05:30,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337308431] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:05:30,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:05:30,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:05:30,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122941832] [2024-11-08 15:05:30,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:05:30,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:05:30,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:05:30,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:05:30,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:05:30,360 INFO L87 Difference]: Start difference. First operand 30370 states and 50731 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 15:05:33,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:05:33,155 INFO L93 Difference]: Finished difference Result 82955 states and 140712 transitions. [2024-11-08 15:05:33,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 15:05:33,156 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 120 [2024-11-08 15:05:33,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:05:33,425 INFO L225 Difference]: With dead ends: 82955 [2024-11-08 15:05:33,426 INFO L226 Difference]: Without dead ends: 55775 [2024-11-08 15:05:33,662 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-08 15:05:33,663 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 1140 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 1531 mSolverCounterSat, 364 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1155 SdHoareTripleChecker+Valid, 855 SdHoareTripleChecker+Invalid, 1895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 364 IncrementalHoareTripleChecker+Valid, 1531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-08 15:05:33,663 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1155 Valid, 855 Invalid, 1895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [364 Valid, 1531 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-08 15:05:33,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55775 states. [2024-11-08 15:05:35,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55775 to 55579. [2024-11-08 15:05:35,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55579 states, 47033 states have (on average 1.5804435183807115) internal successors, (74333), 47038 states have internal predecessors, (74333), 8523 states have call successors, (8523), 18 states have call predecessors, (8523), 22 states have return successors, (9668), 8522 states have call predecessors, (9668), 8522 states have call successors, (9668) [2024-11-08 15:05:36,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55579 states to 55579 states and 92524 transitions. [2024-11-08 15:05:36,165 INFO L78 Accepts]: Start accepts. Automaton has 55579 states and 92524 transitions. Word has length 120 [2024-11-08 15:05:36,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:05:36,166 INFO L471 AbstractCegarLoop]: Abstraction has 55579 states and 92524 transitions. [2024-11-08 15:05:36,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 15:05:36,166 INFO L276 IsEmpty]: Start isEmpty. Operand 55579 states and 92524 transitions. [2024-11-08 15:05:36,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-08 15:05:36,191 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:05:36,191 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:05:36,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-08 15:05:36,192 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:05:36,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:05:36,192 INFO L85 PathProgramCache]: Analyzing trace with hash 426735464, now seen corresponding path program 1 times [2024-11-08 15:05:36,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:05:36,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935352442] [2024-11-08 15:05:36,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:05:36,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:05:36,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:36,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:05:36,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:36,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:05:36,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:36,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:05:36,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:36,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:05:36,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:36,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:05:36,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:36,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:05:36,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:36,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 15:05:36,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:36,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 15:05:36,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:36,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-08 15:05:36,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:36,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-08 15:05:36,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:36,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-08 15:05:36,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:36,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-08 15:05:36,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:36,299 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-08 15:05:36,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:05:36,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935352442] [2024-11-08 15:05:36,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935352442] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:05:36,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:05:36,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:05:36,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772069645] [2024-11-08 15:05:36,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:05:36,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:05:36,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:05:36,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:05:36,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:05:36,301 INFO L87 Difference]: Start difference. First operand 55579 states and 92524 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 15:05:39,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:05:39,762 INFO L93 Difference]: Finished difference Result 104011 states and 176698 transitions. [2024-11-08 15:05:39,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 15:05:39,763 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 121 [2024-11-08 15:05:39,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:05:40,269 INFO L225 Difference]: With dead ends: 104011 [2024-11-08 15:05:40,269 INFO L226 Difference]: Without dead ends: 103849 [2024-11-08 15:05:40,325 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-08 15:05:40,326 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 1135 mSDsluCounter, 696 mSDsCounter, 0 mSdLazyCounter, 1537 mSolverCounterSat, 355 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1149 SdHoareTripleChecker+Valid, 892 SdHoareTripleChecker+Invalid, 1892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 355 IncrementalHoareTripleChecker+Valid, 1537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-08 15:05:40,326 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1149 Valid, 892 Invalid, 1892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [355 Valid, 1537 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-08 15:05:40,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103849 states. [2024-11-08 15:05:43,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103849 to 103653. [2024-11-08 15:05:43,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103653 states, 88308 states have (on average 1.573628663314762) internal successors, (138964), 88313 states have internal predecessors, (138964), 15322 states have call successors, (15322), 18 states have call predecessors, (15322), 22 states have return successors, (17513), 15321 states have call predecessors, (17513), 15321 states have call successors, (17513) [2024-11-08 15:05:44,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103653 states to 103653 states and 171799 transitions. [2024-11-08 15:05:44,845 INFO L78 Accepts]: Start accepts. Automaton has 103653 states and 171799 transitions. Word has length 121 [2024-11-08 15:05:44,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:05:44,846 INFO L471 AbstractCegarLoop]: Abstraction has 103653 states and 171799 transitions. [2024-11-08 15:05:44,846 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 15:05:44,846 INFO L276 IsEmpty]: Start isEmpty. Operand 103653 states and 171799 transitions. [2024-11-08 15:05:44,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-08 15:05:44,867 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:05:44,867 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:05:44,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-08 15:05:44,867 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:05:44,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:05:44,868 INFO L85 PathProgramCache]: Analyzing trace with hash -381994500, now seen corresponding path program 1 times [2024-11-08 15:05:44,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:05:44,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236571964] [2024-11-08 15:05:44,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:05:44,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:05:44,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:45,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:05:45,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:45,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:05:45,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:45,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:05:45,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:45,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:05:45,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:45,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:05:45,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:45,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:05:45,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:45,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 15:05:45,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:45,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 15:05:45,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:45,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-08 15:05:45,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:45,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 15:05:45,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:45,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-08 15:05:45,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:45,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-08 15:05:45,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:45,094 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-08 15:05:45,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:05:45,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236571964] [2024-11-08 15:05:45,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236571964] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:05:45,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:05:45,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 15:05:45,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590199683] [2024-11-08 15:05:45,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:05:45,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 15:05:45,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:05:45,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 15:05:45,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-08 15:05:45,098 INFO L87 Difference]: Start difference. First operand 103653 states and 171799 transitions. Second operand has 10 states, 10 states have (on average 8.0) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 15:05:50,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:05:50,168 INFO L93 Difference]: Finished difference Result 104329 states and 176096 transitions. [2024-11-08 15:05:50,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-08 15:05:50,169 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.0) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 122 [2024-11-08 15:05:50,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:05:50,804 INFO L225 Difference]: With dead ends: 104329 [2024-11-08 15:05:50,804 INFO L226 Difference]: Without dead ends: 104175 [2024-11-08 15:05:50,845 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=184, Invalid=466, Unknown=0, NotChecked=0, Total=650 [2024-11-08 15:05:50,845 INFO L432 NwaCegarLoop]: 193 mSDtfsCounter, 1586 mSDsluCounter, 1007 mSDsCounter, 0 mSdLazyCounter, 4774 mSolverCounterSat, 410 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1600 SdHoareTripleChecker+Valid, 1200 SdHoareTripleChecker+Invalid, 5184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 410 IncrementalHoareTripleChecker+Valid, 4774 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-08 15:05:50,846 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1600 Valid, 1200 Invalid, 5184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [410 Valid, 4774 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-08 15:05:50,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104175 states. [2024-11-08 15:05:54,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104175 to 103809. [2024-11-08 15:05:54,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103809 states, 88432 states have (on average 1.573434955672155) internal successors, (139142), 88437 states have internal predecessors, (139142), 15342 states have call successors, (15342), 28 states have call predecessors, (15342), 34 states have return successors, (17537), 15343 states have call predecessors, (17537), 15340 states have call successors, (17537) [2024-11-08 15:05:54,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103809 states to 103809 states and 172021 transitions. [2024-11-08 15:05:54,416 INFO L78 Accepts]: Start accepts. Automaton has 103809 states and 172021 transitions. Word has length 122 [2024-11-08 15:05:54,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:05:54,417 INFO L471 AbstractCegarLoop]: Abstraction has 103809 states and 172021 transitions. [2024-11-08 15:05:54,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.0) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 15:05:54,417 INFO L276 IsEmpty]: Start isEmpty. Operand 103809 states and 172021 transitions. [2024-11-08 15:05:54,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-08 15:05:54,437 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:05:54,438 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:05:54,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-08 15:05:54,438 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:05:54,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:05:54,439 INFO L85 PathProgramCache]: Analyzing trace with hash -615140042, now seen corresponding path program 1 times [2024-11-08 15:05:54,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:05:54,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953831928] [2024-11-08 15:05:54,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:05:54,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:05:54,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:55,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:05:55,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:55,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:05:55,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:55,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:05:55,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:55,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:05:55,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:55,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:05:55,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:55,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:05:55,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:55,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 15:05:55,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:55,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 15:05:55,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:55,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-08 15:05:55,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:55,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 15:05:55,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:55,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-08 15:05:55,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:55,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-08 15:05:55,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:05:55,317 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-08 15:05:55,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:05:55,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953831928] [2024-11-08 15:05:55,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953831928] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:05:55,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:05:55,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-08 15:05:55,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496058970] [2024-11-08 15:05:55,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:05:55,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-08 15:05:55,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:05:55,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-08 15:05:55,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2024-11-08 15:05:55,321 INFO L87 Difference]: Start difference. First operand 103809 states and 172021 transitions. Second operand has 15 states, 13 states have (on average 6.230769230769231) internal successors, (81), 10 states have internal predecessors, (81), 7 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 5 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-08 15:06:00,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:06:00,892 INFO L93 Difference]: Finished difference Result 104999 states and 177136 transitions. [2024-11-08 15:06:00,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-08 15:06:00,893 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 6.230769230769231) internal successors, (81), 10 states have internal predecessors, (81), 7 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 5 states have call predecessors, (12), 6 states have call successors, (12) Word has length 123 [2024-11-08 15:06:00,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:06:01,276 INFO L225 Difference]: With dead ends: 104999 [2024-11-08 15:06:01,276 INFO L226 Difference]: Without dead ends: 104221 [2024-11-08 15:06:01,333 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 429 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=344, Invalid=1636, Unknown=0, NotChecked=0, Total=1980 [2024-11-08 15:06:01,333 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 1769 mSDsluCounter, 1909 mSDsCounter, 0 mSdLazyCounter, 6019 mSolverCounterSat, 502 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1769 SdHoareTripleChecker+Valid, 2096 SdHoareTripleChecker+Invalid, 6521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 502 IncrementalHoareTripleChecker+Valid, 6019 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:06:01,334 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1769 Valid, 2096 Invalid, 6521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [502 Valid, 6019 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-08 15:06:01,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104221 states.