./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec3_product17.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/email_spec3_product17.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 ece4fa184f09e2184919c279a0198f8db6972fb16f8b142297bd588b2043b23f --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 01:54:51,606 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 01:54:51,658 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 01:54:51,666 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 01:54:51,666 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 01:54:51,686 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 01:54:51,686 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 01:54:51,686 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 01:54:51,687 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 01:54:51,705 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 01:54:51,705 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 01:54:51,706 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 01:54:51,707 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 01:54:51,707 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 01:54:51,707 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 01:54:51,708 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 01:54:51,708 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 01:54:51,708 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 01:54:51,708 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 01:54:51,708 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 01:54:51,709 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 01:54:51,713 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 01:54:51,713 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 01:54:51,713 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 01:54:51,717 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 01:54:51,717 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 01:54:51,717 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 01:54:51,718 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 01:54:51,718 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 01:54:51,718 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 01:54:51,718 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 01:54:51,718 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 01:54:51,718 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 01:54:51,719 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 01:54:51,719 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 01:54:51,719 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 01:54:51,719 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 01:54:51,719 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 01:54:51,719 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 01:54:51,720 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 01:54:51,720 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 01:54:51,721 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 01:54:51,722 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ece4fa184f09e2184919c279a0198f8db6972fb16f8b142297bd588b2043b23f [2024-11-22 01:54:51,933 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 01:54:51,953 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 01:54:51,957 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 01:54:51,958 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 01:54:51,958 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 01:54:51,960 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec3_product17.cil.c [2024-11-22 01:54:53,245 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 01:54:53,498 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 01:54:53,498 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec3_product17.cil.c [2024-11-22 01:54:53,520 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a40f6235/bfef868acae5492d9e283220e02272d0/FLAG2bc5288ec [2024-11-22 01:54:53,532 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a40f6235/bfef868acae5492d9e283220e02272d0 [2024-11-22 01:54:53,534 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 01:54:53,535 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 01:54:53,536 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 01:54:53,536 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 01:54:53,541 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 01:54:53,541 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:54:53" (1/1) ... [2024-11-22 01:54:53,542 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c72c137 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:53, skipping insertion in model container [2024-11-22 01:54:53,542 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:54:53" (1/1) ... [2024-11-22 01:54:53,595 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 01:54:54,106 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec3_product17.cil.c[63718,63731] [2024-11-22 01:54:54,110 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 01:54:54,119 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 01:54:54,127 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] [2024-11-22 01:54:54,128 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [368] [2024-11-22 01:54:54,128 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [403] [2024-11-22 01:54:54,129 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [769] [2024-11-22 01:54:54,129 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [985] [2024-11-22 01:54:54,129 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1304] [2024-11-22 01:54:54,129 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignVerify_spec.i","") [1321] [2024-11-22 01:54:54,129 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1380] [2024-11-22 01:54:54,130 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2444] [2024-11-22 01:54:54,130 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2543] [2024-11-22 01:54:54,130 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2944] [2024-11-22 01:54:54,207 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec3_product17.cil.c[63718,63731] [2024-11-22 01:54:54,208 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 01:54:54,235 INFO L204 MainTranslator]: Completed translation [2024-11-22 01:54:54,235 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:54 WrapperNode [2024-11-22 01:54:54,235 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 01:54:54,236 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 01:54:54,236 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 01:54:54,236 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 01:54:54,241 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:54" (1/1) ... [2024-11-22 01:54:54,261 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:54" (1/1) ... [2024-11-22 01:54:54,306 INFO L138 Inliner]: procedures = 128, calls = 199, calls flagged for inlining = 52, calls inlined = 45, statements flattened = 894 [2024-11-22 01:54:54,307 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 01:54:54,307 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 01:54:54,308 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 01:54:54,308 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 01:54:54,317 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:54" (1/1) ... [2024-11-22 01:54:54,317 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:54" (1/1) ... [2024-11-22 01:54:54,324 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:54" (1/1) ... [2024-11-22 01:54:54,346 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]. [2024-11-22 01:54:54,346 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:54" (1/1) ... [2024-11-22 01:54:54,346 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:54" (1/1) ... [2024-11-22 01:54:54,362 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:54" (1/1) ... [2024-11-22 01:54:54,377 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:54" (1/1) ... [2024-11-22 01:54:54,385 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:54" (1/1) ... [2024-11-22 01:54:54,395 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:54" (1/1) ... [2024-11-22 01:54:54,404 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 01:54:54,405 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 01:54:54,405 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 01:54:54,406 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 01:54:54,406 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:54" (1/1) ... [2024-11-22 01:54:54,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 01:54:54,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:54:54,440 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) [2024-11-22 01:54:54,443 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 [2024-11-22 01:54:54,484 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2024-11-22 01:54:54,484 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2024-11-22 01:54:54,484 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2024-11-22 01:54:54,484 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2024-11-22 01:54:54,484 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2024-11-22 01:54:54,484 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2024-11-22 01:54:54,484 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-22 01:54:54,485 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-22 01:54:54,485 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-22 01:54:54,485 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-22 01:54:54,485 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-22 01:54:54,485 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-22 01:54:54,485 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-22 01:54:54,485 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-22 01:54:54,485 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-22 01:54:54,485 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-22 01:54:54,485 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-22 01:54:54,485 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-22 01:54:54,486 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-22 01:54:54,486 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-22 01:54:54,486 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-22 01:54:54,486 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-22 01:54:54,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 01:54:54,486 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-22 01:54:54,486 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-22 01:54:54,486 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-11-22 01:54:54,486 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-11-22 01:54:54,487 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2024-11-22 01:54:54,487 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2024-11-22 01:54:54,487 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-22 01:54:54,487 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-22 01:54:54,487 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-11-22 01:54:54,487 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-11-22 01:54:54,487 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-22 01:54:54,487 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-22 01:54:54,487 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-22 01:54:54,487 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-22 01:54:54,487 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-11-22 01:54:54,487 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-11-22 01:54:54,487 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-22 01:54:54,487 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-22 01:54:54,487 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-22 01:54:54,487 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-22 01:54:54,488 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-22 01:54:54,488 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-22 01:54:54,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 01:54:54,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-22 01:54:54,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-22 01:54:54,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-22 01:54:54,488 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-22 01:54:54,488 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-22 01:54:54,488 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2024-11-22 01:54:54,488 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2024-11-22 01:54:54,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 01:54:54,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 01:54:54,635 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 01:54:54,638 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 01:54:55,352 INFO L? ?]: Removed 466 outVars from TransFormulas that were not future-live. [2024-11-22 01:54:55,354 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 01:54:55,375 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 01:54:55,377 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 01:54:55,377 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:54:55 BoogieIcfgContainer [2024-11-22 01:54:55,377 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 01:54:55,379 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 01:54:55,380 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 01:54:55,382 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 01:54:55,382 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:54:53" (1/3) ... [2024-11-22 01:54:55,383 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67360fb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:54:55, skipping insertion in model container [2024-11-22 01:54:55,383 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:54" (2/3) ... [2024-11-22 01:54:55,384 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67360fb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:54:55, skipping insertion in model container [2024-11-22 01:54:55,384 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:54:55" (3/3) ... [2024-11-22 01:54:55,385 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec3_product17.cil.c [2024-11-22 01:54:55,399 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 01:54:55,399 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 01:54:55,469 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 01:54:55,477 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;@350d355c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 01:54:55,477 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 01:54:55,484 INFO L276 IsEmpty]: Start isEmpty. Operand has 367 states, 285 states have (on average 1.5719298245614035) internal successors, (448), 290 states have internal predecessors, (448), 56 states have call successors, (56), 24 states have call predecessors, (56), 24 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-22 01:54:55,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-22 01:54:55,503 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:54:55,504 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:54:55,504 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:54:55,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:54:55,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1332961105, now seen corresponding path program 1 times [2024-11-22 01:54:55,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:54:55,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147094847] [2024-11-22 01:54:55,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:54:55,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:54:55,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:54:56,095 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 01:54:56,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:54:56,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147094847] [2024-11-22 01:54:56,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2147094847] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:54:56,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [131559651] [2024-11-22 01:54:56,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:54:56,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:54:56,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:54:56,101 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) [2024-11-22 01:54:56,102 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 01:54:56,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:54:56,435 INFO L255 TraceCheckSpWp]: Trace formula consists of 1127 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-22 01:54:56,445 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:54:56,469 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-22 01:54:56,470 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:54:56,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [131559651] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:54:56,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:54:56,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 5 [2024-11-22 01:54:56,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693666419] [2024-11-22 01:54:56,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:54:56,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 01:54:56,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:54:56,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 01:54:56,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:54:56,514 INFO L87 Difference]: Start difference. First operand has 367 states, 285 states have (on average 1.5719298245614035) internal successors, (448), 290 states have internal predecessors, (448), 56 states have call successors, (56), 24 states have call predecessors, (56), 24 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) Second operand has 2 states, 2 states have (on average 36.0) internal successors, (72), 2 states have internal predecessors, (72), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-22 01:54:56,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:54:56,582 INFO L93 Difference]: Finished difference Result 545 states and 818 transitions. [2024-11-22 01:54:56,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 01:54:56,587 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 36.0) internal successors, (72), 2 states have internal predecessors, (72), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 131 [2024-11-22 01:54:56,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:54:56,605 INFO L225 Difference]: With dead ends: 545 [2024-11-22 01:54:56,606 INFO L226 Difference]: Without dead ends: 359 [2024-11-22 01:54:56,610 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:54:56,616 INFO L432 NwaCegarLoop]: 554 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, 554 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 [2024-11-22 01:54:56,617 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 554 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:54:56,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2024-11-22 01:54:56,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 359. [2024-11-22 01:54:56,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 279 states have (on average 1.5663082437275986) internal successors, (437), 282 states have internal predecessors, (437), 56 states have call successors, (56), 24 states have call predecessors, (56), 23 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-22 01:54:56,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 546 transitions. [2024-11-22 01:54:56,689 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 546 transitions. Word has length 131 [2024-11-22 01:54:56,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:54:56,691 INFO L471 AbstractCegarLoop]: Abstraction has 359 states and 546 transitions. [2024-11-22 01:54:56,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 36.0) internal successors, (72), 2 states have internal predecessors, (72), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-22 01:54:56,692 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 546 transitions. [2024-11-22 01:54:56,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-22 01:54:56,698 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:54:56,700 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:54:56,710 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 01:54:56,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-22 01:54:56,902 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:54:56,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:54:56,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1584837283, now seen corresponding path program 1 times [2024-11-22 01:54:56,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:54:56,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516194732] [2024-11-22 01:54:56,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:54:56,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:54:56,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:54:57,112 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 01:54:57,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:54:57,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516194732] [2024-11-22 01:54:57,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516194732] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:54:57,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1587993202] [2024-11-22 01:54:57,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:54:57,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:54:57,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:54:57,117 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) [2024-11-22 01:54:57,118 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 01:54:57,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:54:57,368 INFO L255 TraceCheckSpWp]: Trace formula consists of 1128 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-22 01:54:57,372 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:54:57,393 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-22 01:54:57,393 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:54:57,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1587993202] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:54:57,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:54:57,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-22 01:54:57,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447217496] [2024-11-22 01:54:57,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:54:57,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:54:57,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:54:57,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:54:57,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:54:57,398 INFO L87 Difference]: Start difference. First operand 359 states and 546 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-22 01:54:57,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:54:57,435 INFO L93 Difference]: Finished difference Result 534 states and 792 transitions. [2024-11-22 01:54:57,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:54:57,436 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 132 [2024-11-22 01:54:57,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:54:57,439 INFO L225 Difference]: With dead ends: 534 [2024-11-22 01:54:57,441 INFO L226 Difference]: Without dead ends: 362 [2024-11-22 01:54:57,443 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:54:57,445 INFO L432 NwaCegarLoop]: 544 mSDtfsCounter, 1 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1086 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 [2024-11-22 01:54:57,445 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1086 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:54:57,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2024-11-22 01:54:57,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 361. [2024-11-22 01:54:57,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 281 states have (on average 1.5622775800711743) internal successors, (439), 284 states have internal predecessors, (439), 56 states have call successors, (56), 24 states have call predecessors, (56), 23 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-22 01:54:57,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 548 transitions. [2024-11-22 01:54:57,465 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 548 transitions. Word has length 132 [2024-11-22 01:54:57,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:54:57,465 INFO L471 AbstractCegarLoop]: Abstraction has 361 states and 548 transitions. [2024-11-22 01:54:57,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-22 01:54:57,465 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 548 transitions. [2024-11-22 01:54:57,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-22 01:54:57,468 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:54:57,468 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2024-11-22 01:54:57,477 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-22 01:54:57,669 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 [2024-11-22 01:54:57,669 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:54:57,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:54:57,670 INFO L85 PathProgramCache]: Analyzing trace with hash 961245842, now seen corresponding path program 1 times [2024-11-22 01:54:57,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:54:57,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117959459] [2024-11-22 01:54:57,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:54:57,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:54:57,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:54:57,822 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-22 01:54:57,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:54:57,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117959459] [2024-11-22 01:54:57,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117959459] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:54:57,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1504274604] [2024-11-22 01:54:57,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:54:57,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:54:57,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:54:57,825 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) [2024-11-22 01:54:57,826 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 01:54:58,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:54:58,046 INFO L255 TraceCheckSpWp]: Trace formula consists of 1062 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 01:54:58,049 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:54:58,064 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-22 01:54:58,067 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:54:58,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1504274604] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:54:58,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:54:58,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-22 01:54:58,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527600155] [2024-11-22 01:54:58,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:54:58,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:54:58,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:54:58,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:54:58,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:54:58,070 INFO L87 Difference]: Start difference. First operand 361 states and 548 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:54:58,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:54:58,095 INFO L93 Difference]: Finished difference Result 765 states and 1180 transitions. [2024-11-22 01:54:58,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:54:58,095 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 119 [2024-11-22 01:54:58,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:54:58,097 INFO L225 Difference]: With dead ends: 765 [2024-11-22 01:54:58,097 INFO L226 Difference]: Without dead ends: 431 [2024-11-22 01:54:58,099 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:54:58,099 INFO L432 NwaCegarLoop]: 559 mSDtfsCounter, 126 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 1059 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 [2024-11-22 01:54:58,100 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 1059 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:54:58,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2024-11-22 01:54:58,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 423. [2024-11-22 01:54:58,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 329 states have (on average 1.580547112462006) internal successors, (520), 332 states have internal predecessors, (520), 70 states have call successors, (70), 24 states have call predecessors, (70), 23 states have return successors, (67), 66 states have call predecessors, (67), 67 states have call successors, (67) [2024-11-22 01:54:58,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 657 transitions. [2024-11-22 01:54:58,126 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 657 transitions. Word has length 119 [2024-11-22 01:54:58,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:54:58,127 INFO L471 AbstractCegarLoop]: Abstraction has 423 states and 657 transitions. [2024-11-22 01:54:58,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:54:58,127 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 657 transitions. [2024-11-22 01:54:58,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-22 01:54:58,129 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:54:58,129 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2024-11-22 01:54:58,140 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-22 01:54:58,330 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 [2024-11-22 01:54:58,331 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:54:58,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:54:58,332 INFO L85 PathProgramCache]: Analyzing trace with hash -1505396304, now seen corresponding path program 1 times [2024-11-22 01:54:58,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:54:58,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313525786] [2024-11-22 01:54:58,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:54:58,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:54:58,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:54:58,485 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-22 01:54:58,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:54:58,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313525786] [2024-11-22 01:54:58,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313525786] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:54:58,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1229707077] [2024-11-22 01:54:58,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:54:58,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:54:58,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:54:58,491 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) [2024-11-22 01:54:58,492 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 01:54:58,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:54:58,748 INFO L255 TraceCheckSpWp]: Trace formula consists of 1067 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-22 01:54:58,752 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:54:58,802 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-22 01:54:58,803 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:54:58,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1229707077] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:54:58,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:54:58,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-22 01:54:58,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146198293] [2024-11-22 01:54:58,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:54:58,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 01:54:58,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:54:58,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 01:54:58,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-22 01:54:58,805 INFO L87 Difference]: Start difference. First operand 423 states and 657 transitions. Second operand has 5 states, 4 states have (on average 20.25) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-22 01:54:58,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:54:58,860 INFO L93 Difference]: Finished difference Result 837 states and 1304 transitions. [2024-11-22 01:54:58,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:54:58,860 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 20.25) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 120 [2024-11-22 01:54:58,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:54:58,863 INFO L225 Difference]: With dead ends: 837 [2024-11-22 01:54:58,863 INFO L226 Difference]: Without dead ends: 425 [2024-11-22 01:54:58,866 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-22 01:54:58,867 INFO L432 NwaCegarLoop]: 538 mSDtfsCounter, 2 mSDsluCounter, 1603 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2141 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 [2024-11-22 01:54:58,868 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2141 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:54:58,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2024-11-22 01:54:58,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 425. [2024-11-22 01:54:58,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 330 states have (on average 1.5787878787878789) internal successors, (521), 334 states have internal predecessors, (521), 70 states have call successors, (70), 24 states have call predecessors, (70), 24 states have return successors, (69), 66 states have call predecessors, (69), 67 states have call successors, (69) [2024-11-22 01:54:58,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 660 transitions. [2024-11-22 01:54:58,882 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 660 transitions. Word has length 120 [2024-11-22 01:54:58,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:54:58,882 INFO L471 AbstractCegarLoop]: Abstraction has 425 states and 660 transitions. [2024-11-22 01:54:58,883 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 20.25) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-22 01:54:58,883 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 660 transitions. [2024-11-22 01:54:58,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-22 01:54:58,885 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:54:58,885 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:54:58,896 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-22 01:54:59,085 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 [2024-11-22 01:54:59,086 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:54:59,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:54:59,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1946472129, now seen corresponding path program 1 times [2024-11-22 01:54:59,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:54:59,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523052335] [2024-11-22 01:54:59,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:54:59,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:54:59,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:54:59,221 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-22 01:54:59,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:54:59,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523052335] [2024-11-22 01:54:59,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523052335] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:54:59,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2082401970] [2024-11-22 01:54:59,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:54:59,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:54:59,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:54:59,224 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) [2024-11-22 01:54:59,225 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-22 01:54:59,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:54:59,448 INFO L255 TraceCheckSpWp]: Trace formula consists of 1146 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-22 01:54:59,452 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:54:59,503 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-22 01:54:59,503 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:54:59,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2082401970] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:54:59,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:54:59,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2024-11-22 01:54:59,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77063692] [2024-11-22 01:54:59,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:54:59,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 01:54:59,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:54:59,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 01:54:59,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-22 01:54:59,507 INFO L87 Difference]: Start difference. First operand 425 states and 660 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-22 01:54:59,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:54:59,566 INFO L93 Difference]: Finished difference Result 839 states and 1309 transitions. [2024-11-22 01:54:59,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:54:59,567 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 140 [2024-11-22 01:54:59,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:54:59,569 INFO L225 Difference]: With dead ends: 839 [2024-11-22 01:54:59,570 INFO L226 Difference]: Without dead ends: 427 [2024-11-22 01:54:59,571 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-22 01:54:59,572 INFO L432 NwaCegarLoop]: 536 mSDtfsCounter, 2 mSDsluCounter, 1591 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2127 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 [2024-11-22 01:54:59,572 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2127 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:54:59,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2024-11-22 01:54:59,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 427. [2024-11-22 01:54:59,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 331 states have (on average 1.5770392749244713) internal successors, (522), 336 states have internal predecessors, (522), 70 states have call successors, (70), 24 states have call predecessors, (70), 25 states have return successors, (74), 66 states have call predecessors, (74), 67 states have call successors, (74) [2024-11-22 01:54:59,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 666 transitions. [2024-11-22 01:54:59,593 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 666 transitions. Word has length 140 [2024-11-22 01:54:59,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:54:59,593 INFO L471 AbstractCegarLoop]: Abstraction has 427 states and 666 transitions. [2024-11-22 01:54:59,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-22 01:54:59,594 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 666 transitions. [2024-11-22 01:54:59,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-22 01:54:59,595 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:54:59,596 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:54:59,605 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-22 01:54:59,797 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 [2024-11-22 01:54:59,798 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:54:59,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:54:59,799 INFO L85 PathProgramCache]: Analyzing trace with hash -1232659914, now seen corresponding path program 1 times [2024-11-22 01:54:59,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:54:59,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097843391] [2024-11-22 01:54:59,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:54:59,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:54:59,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:54:59,936 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-22 01:54:59,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:54:59,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097843391] [2024-11-22 01:54:59,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097843391] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:54:59,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:54:59,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 01:54:59,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822877818] [2024-11-22 01:54:59,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:54:59,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 01:54:59,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:54:59,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 01:54:59,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:54:59,938 INFO L87 Difference]: Start difference. First operand 427 states and 666 transitions. Second operand has 5 states, 4 states have (on average 21.5) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-22 01:54:59,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:54:59,978 INFO L93 Difference]: Finished difference Result 831 states and 1300 transitions. [2024-11-22 01:54:59,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:54:59,979 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.5) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 141 [2024-11-22 01:54:59,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:54:59,981 INFO L225 Difference]: With dead ends: 831 [2024-11-22 01:54:59,981 INFO L226 Difference]: Without dead ends: 427 [2024-11-22 01:54:59,982 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:54:59,983 INFO L432 NwaCegarLoop]: 539 mSDtfsCounter, 2 mSDsluCounter, 1606 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2145 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:54:59,983 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2145 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:54:59,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2024-11-22 01:54:59,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 427. [2024-11-22 01:54:59,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 331 states have (on average 1.5770392749244713) internal successors, (522), 336 states have internal predecessors, (522), 70 states have call successors, (70), 24 states have call predecessors, (70), 25 states have return successors, (73), 66 states have call predecessors, (73), 67 states have call successors, (73) [2024-11-22 01:54:59,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 665 transitions. [2024-11-22 01:54:59,998 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 665 transitions. Word has length 141 [2024-11-22 01:54:59,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:54:59,999 INFO L471 AbstractCegarLoop]: Abstraction has 427 states and 665 transitions. [2024-11-22 01:54:59,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.5) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-22 01:54:59,999 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 665 transitions. [2024-11-22 01:55:00,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-22 01:55:00,001 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:55:00,002 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:55:00,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 01:55:00,002 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:55:00,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:55:00,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1823488409, now seen corresponding path program 2 times [2024-11-22 01:55:00,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:55:00,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007508160] [2024-11-22 01:55:00,003 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 01:55:00,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:55:00,032 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 01:55:00,033 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 01:55:00,114 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-22 01:55:00,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:55:00,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007508160] [2024-11-22 01:55:00,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007508160] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:55:00,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:55:00,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 01:55:00,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521395012] [2024-11-22 01:55:00,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:55:00,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 01:55:00,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:55:00,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 01:55:00,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:55:00,117 INFO L87 Difference]: Start difference. First operand 427 states and 665 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-22 01:55:00,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:55:00,185 INFO L93 Difference]: Finished difference Result 829 states and 1295 transitions. [2024-11-22 01:55:00,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:55:00,186 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 142 [2024-11-22 01:55:00,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:55:00,189 INFO L225 Difference]: With dead ends: 829 [2024-11-22 01:55:00,189 INFO L226 Difference]: Without dead ends: 427 [2024-11-22 01:55:00,191 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:55:00,192 INFO L432 NwaCegarLoop]: 537 mSDtfsCounter, 2 mSDsluCounter, 1594 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2131 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:55:00,192 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2131 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:55:00,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2024-11-22 01:55:00,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 427. [2024-11-22 01:55:00,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 331 states have (on average 1.5770392749244713) internal successors, (522), 336 states have internal predecessors, (522), 70 states have call successors, (70), 24 states have call predecessors, (70), 25 states have return successors, (72), 66 states have call predecessors, (72), 67 states have call successors, (72) [2024-11-22 01:55:00,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 664 transitions. [2024-11-22 01:55:00,204 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 664 transitions. Word has length 142 [2024-11-22 01:55:00,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:55:00,204 INFO L471 AbstractCegarLoop]: Abstraction has 427 states and 664 transitions. [2024-11-22 01:55:00,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-22 01:55:00,205 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 664 transitions. [2024-11-22 01:55:00,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-22 01:55:00,207 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:55:00,207 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:55:00,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 01:55:00,208 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:55:00,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:55:00,208 INFO L85 PathProgramCache]: Analyzing trace with hash -844237382, now seen corresponding path program 3 times [2024-11-22 01:55:00,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:55:00,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688198326] [2024-11-22 01:55:00,208 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 01:55:00,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:55:00,233 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-22 01:55:00,234 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 01:55:00,296 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-22 01:55:00,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:55:00,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688198326] [2024-11-22 01:55:00,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688198326] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:55:00,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:55:00,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 01:55:00,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433693418] [2024-11-22 01:55:00,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:55:00,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 01:55:00,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:55:00,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 01:55:00,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:55:00,299 INFO L87 Difference]: Start difference. First operand 427 states and 664 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-22 01:55:00,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:55:00,340 INFO L93 Difference]: Finished difference Result 826 states and 1294 transitions. [2024-11-22 01:55:00,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:55:00,340 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 143 [2024-11-22 01:55:00,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:55:00,342 INFO L225 Difference]: With dead ends: 826 [2024-11-22 01:55:00,342 INFO L226 Difference]: Without dead ends: 403 [2024-11-22 01:55:00,343 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:55:00,344 INFO L432 NwaCegarLoop]: 530 mSDtfsCounter, 1 mSDsluCounter, 1572 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2102 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 [2024-11-22 01:55:00,344 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2102 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:55:00,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2024-11-22 01:55:00,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 403. [2024-11-22 01:55:00,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 314 states have (on average 1.5668789808917198) internal successors, (492), 319 states have internal predecessors, (492), 63 states have call successors, (63), 23 states have call predecessors, (63), 25 states have return successors, (70), 60 states have call predecessors, (70), 60 states have call successors, (70) [2024-11-22 01:55:00,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 625 transitions. [2024-11-22 01:55:00,355 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 625 transitions. Word has length 143 [2024-11-22 01:55:00,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:55:00,355 INFO L471 AbstractCegarLoop]: Abstraction has 403 states and 625 transitions. [2024-11-22 01:55:00,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-22 01:55:00,356 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 625 transitions. [2024-11-22 01:55:00,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-22 01:55:00,357 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:55:00,357 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:55:00,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 01:55:00,358 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:55:00,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:55:00,358 INFO L85 PathProgramCache]: Analyzing trace with hash 662434386, now seen corresponding path program 1 times [2024-11-22 01:55:00,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:55:00,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843840167] [2024-11-22 01:55:00,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:55:00,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:55:00,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:55:00,467 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-22 01:55:00,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:55:00,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843840167] [2024-11-22 01:55:00,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843840167] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:55:00,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:55:00,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 01:55:00,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918456391] [2024-11-22 01:55:00,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:55:00,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 01:55:00,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:55:00,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 01:55:00,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:55:00,469 INFO L87 Difference]: Start difference. First operand 403 states and 625 transitions. Second operand has 5 states, 4 states have (on average 20.5) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-22 01:55:00,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:55:00,501 INFO L93 Difference]: Finished difference Result 785 states and 1221 transitions. [2024-11-22 01:55:00,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:55:00,501 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 20.5) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 125 [2024-11-22 01:55:00,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:55:00,504 INFO L225 Difference]: With dead ends: 785 [2024-11-22 01:55:00,504 INFO L226 Difference]: Without dead ends: 405 [2024-11-22 01:55:00,505 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:55:00,505 INFO L432 NwaCegarLoop]: 495 mSDtfsCounter, 1 mSDsluCounter, 1473 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1968 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 [2024-11-22 01:55:00,505 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1968 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:55:00,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2024-11-22 01:55:00,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 405. [2024-11-22 01:55:00,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 315 states have (on average 1.565079365079365) internal successors, (493), 321 states have internal predecessors, (493), 63 states have call successors, (63), 23 states have call predecessors, (63), 26 states have return successors, (72), 60 states have call predecessors, (72), 60 states have call successors, (72) [2024-11-22 01:55:00,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 628 transitions. [2024-11-22 01:55:00,515 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 628 transitions. Word has length 125 [2024-11-22 01:55:00,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:55:00,515 INFO L471 AbstractCegarLoop]: Abstraction has 405 states and 628 transitions. [2024-11-22 01:55:00,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 20.5) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-22 01:55:00,515 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 628 transitions. [2024-11-22 01:55:00,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-22 01:55:00,517 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:55:00,517 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:55:00,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 01:55:00,517 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:55:00,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:55:00,517 INFO L85 PathProgramCache]: Analyzing trace with hash 126969886, now seen corresponding path program 1 times [2024-11-22 01:55:00,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:55:00,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578543437] [2024-11-22 01:55:00,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:55:00,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:55:00,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:55:00,603 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 01:55:00,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:55:00,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578543437] [2024-11-22 01:55:00,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578543437] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:55:00,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [744932948] [2024-11-22 01:55:00,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:55:00,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:55:00,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:55:00,606 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) [2024-11-22 01:55:00,607 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-22 01:55:00,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:55:00,846 INFO L255 TraceCheckSpWp]: Trace formula consists of 1073 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 01:55:00,848 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:55:00,871 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 01:55:00,871 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 01:55:00,948 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 01:55:00,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [744932948] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 01:55:00,949 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 01:55:00,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-22 01:55:00,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070281359] [2024-11-22 01:55:00,949 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 01:55:00,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 01:55:00,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:55:00,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 01:55:00,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:55:00,952 INFO L87 Difference]: Start difference. First operand 405 states and 628 transitions. Second operand has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 7 states have internal predecessors, (117), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-22 01:55:01,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:55:01,073 INFO L93 Difference]: Finished difference Result 968 states and 1559 transitions. [2024-11-22 01:55:01,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 01:55:01,073 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 7 states have internal predecessors, (117), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 126 [2024-11-22 01:55:01,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:55:01,078 INFO L225 Difference]: With dead ends: 968 [2024-11-22 01:55:01,079 INFO L226 Difference]: Without dead ends: 822 [2024-11-22 01:55:01,079 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:55:01,080 INFO L432 NwaCegarLoop]: 526 mSDtfsCounter, 374 mSDsluCounter, 2067 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 2593 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:55:01,081 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [428 Valid, 2593 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:55:01,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 822 states. [2024-11-22 01:55:01,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 822 to 798. [2024-11-22 01:55:01,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 798 states, 629 states have (on average 1.631160572337043) internal successors, (1026), 635 states have internal predecessors, (1026), 142 states have call successors, (142), 23 states have call predecessors, (142), 26 states have return successors, (161), 139 states have call predecessors, (161), 139 states have call successors, (161) [2024-11-22 01:55:01,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 1329 transitions. [2024-11-22 01:55:01,106 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 1329 transitions. Word has length 126 [2024-11-22 01:55:01,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:55:01,107 INFO L471 AbstractCegarLoop]: Abstraction has 798 states and 1329 transitions. [2024-11-22 01:55:01,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 7 states have internal predecessors, (117), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-22 01:55:01,107 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 1329 transitions. [2024-11-22 01:55:01,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-22 01:55:01,110 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:55:01,110 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:55:01,120 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-22 01:55:01,311 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 [2024-11-22 01:55:01,312 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:55:01,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:55:01,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1085753151, now seen corresponding path program 1 times [2024-11-22 01:55:01,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:55:01,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609544979] [2024-11-22 01:55:01,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:55:01,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:55:01,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:55:01,368 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 01:55:01,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:55:01,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609544979] [2024-11-22 01:55:01,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609544979] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:55:01,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:55:01,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:55:01,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528465656] [2024-11-22 01:55:01,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:55:01,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:55:01,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:55:01,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:55:01,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:55:01,370 INFO L87 Difference]: Start difference. First operand 798 states and 1329 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:55:01,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:55:01,398 INFO L93 Difference]: Finished difference Result 1926 states and 3255 transitions. [2024-11-22 01:55:01,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:55:01,398 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 132 [2024-11-22 01:55:01,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:55:01,403 INFO L225 Difference]: With dead ends: 1926 [2024-11-22 01:55:01,404 INFO L226 Difference]: Without dead ends: 1196 [2024-11-22 01:55:01,406 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:55:01,406 INFO L432 NwaCegarLoop]: 512 mSDtfsCounter, 124 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 1011 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 [2024-11-22 01:55:01,406 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 1011 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:55:01,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1196 states. [2024-11-22 01:55:01,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1196 to 1188. [2024-11-22 01:55:01,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1188 states, 940 states have (on average 1.6446808510638298) internal successors, (1546), 946 states have internal predecessors, (1546), 221 states have call successors, (221), 23 states have call predecessors, (221), 26 states have return successors, (250), 218 states have call predecessors, (250), 218 states have call successors, (250) [2024-11-22 01:55:01,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1188 states to 1188 states and 2017 transitions. [2024-11-22 01:55:01,440 INFO L78 Accepts]: Start accepts. Automaton has 1188 states and 2017 transitions. Word has length 132 [2024-11-22 01:55:01,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:55:01,440 INFO L471 AbstractCegarLoop]: Abstraction has 1188 states and 2017 transitions. [2024-11-22 01:55:01,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:55:01,441 INFO L276 IsEmpty]: Start isEmpty. Operand 1188 states and 2017 transitions. [2024-11-22 01:55:01,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-22 01:55:01,458 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:55:01,458 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:55:01,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 01:55:01,458 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:55:01,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:55:01,459 INFO L85 PathProgramCache]: Analyzing trace with hash 1025991844, now seen corresponding path program 1 times [2024-11-22 01:55:01,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:55:01,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549311566] [2024-11-22 01:55:01,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:55:01,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:55:01,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:55:01,507 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 01:55:01,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:55:01,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549311566] [2024-11-22 01:55:01,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549311566] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:55:01,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:55:01,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:55:01,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518611329] [2024-11-22 01:55:01,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:55:01,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:55:01,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:55:01,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:55:01,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:55:01,509 INFO L87 Difference]: Start difference. First operand 1188 states and 2017 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:55:01,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:55:01,545 INFO L93 Difference]: Finished difference Result 2875 states and 4913 transitions. [2024-11-22 01:55:01,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:55:01,545 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 133 [2024-11-22 01:55:01,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:55:01,553 INFO L225 Difference]: With dead ends: 2875 [2024-11-22 01:55:01,553 INFO L226 Difference]: Without dead ends: 1808 [2024-11-22 01:55:01,557 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:55:01,557 INFO L432 NwaCegarLoop]: 500 mSDtfsCounter, 122 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 994 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 [2024-11-22 01:55:01,557 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 994 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:55:01,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1808 states. [2024-11-22 01:55:01,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1808 to 1800. [2024-11-22 01:55:01,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1800 states, 1433 states have (on average 1.653175157013259) internal successors, (2369), 1439 states have internal predecessors, (2369), 340 states have call successors, (340), 23 states have call predecessors, (340), 26 states have return successors, (369), 337 states have call predecessors, (369), 337 states have call successors, (369) [2024-11-22 01:55:01,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1800 states to 1800 states and 3078 transitions. [2024-11-22 01:55:01,604 INFO L78 Accepts]: Start accepts. Automaton has 1800 states and 3078 transitions. Word has length 133 [2024-11-22 01:55:01,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:55:01,605 INFO L471 AbstractCegarLoop]: Abstraction has 1800 states and 3078 transitions. [2024-11-22 01:55:01,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:55:01,605 INFO L276 IsEmpty]: Start isEmpty. Operand 1800 states and 3078 transitions. [2024-11-22 01:55:01,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-22 01:55:01,613 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:55:01,613 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:55:01,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 01:55:01,614 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:55:01,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:55:01,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1627588351, now seen corresponding path program 1 times [2024-11-22 01:55:01,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:55:01,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757538837] [2024-11-22 01:55:01,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:55:01,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:55:01,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:55:01,656 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 01:55:01,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:55:01,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757538837] [2024-11-22 01:55:01,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757538837] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:55:01,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:55:01,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:55:01,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426731615] [2024-11-22 01:55:01,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:55:01,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:55:01,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:55:01,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:55:01,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:55:01,658 INFO L87 Difference]: Start difference. First operand 1800 states and 3078 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:55:01,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:55:01,712 INFO L93 Difference]: Finished difference Result 4300 states and 7413 transitions. [2024-11-22 01:55:01,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:55:01,712 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 134 [2024-11-22 01:55:01,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:55:01,725 INFO L225 Difference]: With dead ends: 4300 [2024-11-22 01:55:01,726 INFO L226 Difference]: Without dead ends: 2746 [2024-11-22 01:55:01,731 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:55:01,731 INFO L432 NwaCegarLoop]: 500 mSDtfsCounter, 120 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 991 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 [2024-11-22 01:55:01,731 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 991 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:55:01,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2746 states. [2024-11-22 01:55:01,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2746 to 2738. [2024-11-22 01:55:01,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2738 states, 2209 states have (on average 1.660027161611589) internal successors, (3667), 2215 states have internal predecessors, (3667), 502 states have call successors, (502), 23 states have call predecessors, (502), 26 states have return successors, (547), 499 states have call predecessors, (547), 499 states have call successors, (547) [2024-11-22 01:55:01,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2738 states to 2738 states and 4716 transitions. [2024-11-22 01:55:01,860 INFO L78 Accepts]: Start accepts. Automaton has 2738 states and 4716 transitions. Word has length 134 [2024-11-22 01:55:01,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:55:01,861 INFO L471 AbstractCegarLoop]: Abstraction has 2738 states and 4716 transitions. [2024-11-22 01:55:01,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:55:01,861 INFO L276 IsEmpty]: Start isEmpty. Operand 2738 states and 4716 transitions. [2024-11-22 01:55:01,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-22 01:55:01,872 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:55:01,872 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:55:01,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 01:55:01,872 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:55:01,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:55:01,873 INFO L85 PathProgramCache]: Analyzing trace with hash 185212739, now seen corresponding path program 1 times [2024-11-22 01:55:01,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:55:01,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225830196] [2024-11-22 01:55:01,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:55:01,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:55:01,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:55:01,922 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 01:55:01,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:55:01,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225830196] [2024-11-22 01:55:01,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225830196] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:55:01,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:55:01,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:55:01,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093575373] [2024-11-22 01:55:01,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:55:01,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:55:01,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:55:01,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:55:01,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:55:01,923 INFO L87 Difference]: Start difference. First operand 2738 states and 4716 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:55:02,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:55:02,004 INFO L93 Difference]: Finished difference Result 6549 states and 11365 transitions. [2024-11-22 01:55:02,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:55:02,005 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 135 [2024-11-22 01:55:02,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:55:02,023 INFO L225 Difference]: With dead ends: 6549 [2024-11-22 01:55:02,023 INFO L226 Difference]: Without dead ends: 4261 [2024-11-22 01:55:02,031 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:55:02,031 INFO L432 NwaCegarLoop]: 500 mSDtfsCounter, 118 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 991 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 [2024-11-22 01:55:02,031 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 991 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:55:02,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4261 states. [2024-11-22 01:55:02,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4261 to 4253. [2024-11-22 01:55:02,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4253 states, 3479 states have (on average 1.6648462201782122) internal successors, (5792), 3485 states have internal predecessors, (5792), 747 states have call successors, (747), 23 states have call predecessors, (747), 26 states have return successors, (818), 744 states have call predecessors, (818), 744 states have call successors, (818) [2024-11-22 01:55:02,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4253 states to 4253 states and 7357 transitions. [2024-11-22 01:55:02,190 INFO L78 Accepts]: Start accepts. Automaton has 4253 states and 7357 transitions. Word has length 135 [2024-11-22 01:55:02,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:55:02,190 INFO L471 AbstractCegarLoop]: Abstraction has 4253 states and 7357 transitions. [2024-11-22 01:55:02,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:55:02,190 INFO L276 IsEmpty]: Start isEmpty. Operand 4253 states and 7357 transitions. [2024-11-22 01:55:02,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-22 01:55:02,202 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:55:02,203 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:55:02,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 01:55:02,203 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:55:02,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:55:02,203 INFO L85 PathProgramCache]: Analyzing trace with hash -523716637, now seen corresponding path program 1 times [2024-11-22 01:55:02,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:55:02,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835777794] [2024-11-22 01:55:02,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:55:02,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:55:02,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:55:02,245 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 01:55:02,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:55:02,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835777794] [2024-11-22 01:55:02,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835777794] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:55:02,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:55:02,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:55:02,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881856014] [2024-11-22 01:55:02,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:55:02,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:55:02,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:55:02,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:55:02,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:55:02,247 INFO L87 Difference]: Start difference. First operand 4253 states and 7357 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:55:02,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:55:02,353 INFO L93 Difference]: Finished difference Result 10565 states and 18377 transitions. [2024-11-22 01:55:02,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:55:02,354 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 136 [2024-11-22 01:55:02,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:55:02,388 INFO L225 Difference]: With dead ends: 10565 [2024-11-22 01:55:02,388 INFO L226 Difference]: Without dead ends: 6994 [2024-11-22 01:55:02,403 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:55:02,403 INFO L432 NwaCegarLoop]: 512 mSDtfsCounter, 116 mSDsluCounter, 497 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 1009 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 [2024-11-22 01:55:02,403 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 1009 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:55:02,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6994 states. [2024-11-22 01:55:02,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6994 to 6986. [2024-11-22 01:55:02,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6986 states, 5719 states have (on average 1.6606050008742788) internal successors, (9497), 5725 states have internal predecessors, (9497), 1240 states have call successors, (1240), 23 states have call predecessors, (1240), 26 states have return successors, (1355), 1237 states have call predecessors, (1355), 1237 states have call successors, (1355) [2024-11-22 01:55:02,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6986 states to 6986 states and 12092 transitions. [2024-11-22 01:55:02,654 INFO L78 Accepts]: Start accepts. Automaton has 6986 states and 12092 transitions. Word has length 136 [2024-11-22 01:55:02,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:55:02,654 INFO L471 AbstractCegarLoop]: Abstraction has 6986 states and 12092 transitions. [2024-11-22 01:55:02,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:55:02,654 INFO L276 IsEmpty]: Start isEmpty. Operand 6986 states and 12092 transitions. [2024-11-22 01:55:02,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-22 01:55:02,674 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:55:02,674 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:55:02,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 01:55:02,675 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:55:02,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:55:02,675 INFO L85 PathProgramCache]: Analyzing trace with hash 2056384095, now seen corresponding path program 1 times [2024-11-22 01:55:02,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:55:02,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864375189] [2024-11-22 01:55:02,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:55:02,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:55:02,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:55:02,733 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 01:55:02,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:55:02,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864375189] [2024-11-22 01:55:02,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864375189] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:55:02,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:55:02,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:55:02,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963991635] [2024-11-22 01:55:02,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:55:02,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:55:02,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:55:02,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:55:02,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:55:02,738 INFO L87 Difference]: Start difference. First operand 6986 states and 12092 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:55:02,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:55:02,973 INFO L93 Difference]: Finished difference Result 17705 states and 30838 transitions. [2024-11-22 01:55:02,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:55:02,974 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 137 [2024-11-22 01:55:02,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:55:03,035 INFO L225 Difference]: With dead ends: 17705 [2024-11-22 01:55:03,035 INFO L226 Difference]: Without dead ends: 11778 [2024-11-22 01:55:03,055 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:55:03,055 INFO L432 NwaCegarLoop]: 504 mSDtfsCounter, 114 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 998 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 [2024-11-22 01:55:03,056 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 998 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:55:03,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11778 states. [2024-11-22 01:55:03,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11778 to 11770. [2024-11-22 01:55:03,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11770 states, 9681 states have (on average 1.6604689598182005) internal successors, (16075), 9687 states have internal predecessors, (16075), 2062 states have call successors, (2062), 23 states have call predecessors, (2062), 26 states have return successors, (2255), 2059 states have call predecessors, (2255), 2059 states have call successors, (2255) [2024-11-22 01:55:03,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11770 states to 11770 states and 20392 transitions. [2024-11-22 01:55:03,588 INFO L78 Accepts]: Start accepts. Automaton has 11770 states and 20392 transitions. Word has length 137 [2024-11-22 01:55:03,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:55:03,590 INFO L471 AbstractCegarLoop]: Abstraction has 11770 states and 20392 transitions. [2024-11-22 01:55:03,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:55:03,591 INFO L276 IsEmpty]: Start isEmpty. Operand 11770 states and 20392 transitions. [2024-11-22 01:55:03,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-22 01:55:03,622 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:55:03,622 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:55:03,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 01:55:03,622 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:55:03,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:55:03,623 INFO L85 PathProgramCache]: Analyzing trace with hash 458487873, now seen corresponding path program 1 times [2024-11-22 01:55:03,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:55:03,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231559654] [2024-11-22 01:55:03,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:55:03,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:55:03,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:55:03,722 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 01:55:03,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:55:03,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231559654] [2024-11-22 01:55:03,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231559654] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:55:03,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:55:03,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:55:03,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481391293] [2024-11-22 01:55:03,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:55:03,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:55:03,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:55:03,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:55:03,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:55:03,723 INFO L87 Difference]: Start difference. First operand 11770 states and 20392 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:55:04,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:55:04,097 INFO L93 Difference]: Finished difference Result 28138 states and 48682 transitions. [2024-11-22 01:55:04,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:55:04,099 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 138 [2024-11-22 01:55:04,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:55:04,161 INFO L225 Difference]: With dead ends: 28138 [2024-11-22 01:55:04,161 INFO L226 Difference]: Without dead ends: 18371 [2024-11-22 01:55:04,187 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:55:04,187 INFO L432 NwaCegarLoop]: 500 mSDtfsCounter, 112 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 966 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:55:04,187 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 966 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:55:04,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18371 states. [2024-11-22 01:55:04,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18371 to 18363. [2024-11-22 01:55:04,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18363 states, 15071 states have (on average 1.6349943600291952) internal successors, (24641), 15077 states have internal predecessors, (24641), 3265 states have call successors, (3265), 23 states have call predecessors, (3265), 26 states have return successors, (3602), 3262 states have call predecessors, (3602), 3262 states have call successors, (3602) [2024-11-22 01:55:04,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18363 states to 18363 states and 31508 transitions. [2024-11-22 01:55:04,808 INFO L78 Accepts]: Start accepts. Automaton has 18363 states and 31508 transitions. Word has length 138 [2024-11-22 01:55:04,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:55:04,809 INFO L471 AbstractCegarLoop]: Abstraction has 18363 states and 31508 transitions. [2024-11-22 01:55:04,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:55:04,809 INFO L276 IsEmpty]: Start isEmpty. Operand 18363 states and 31508 transitions. [2024-11-22 01:55:04,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-22 01:55:04,843 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:55:04,843 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:55:04,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-22 01:55:04,844 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:55:04,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:55:04,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1608445602, now seen corresponding path program 1 times [2024-11-22 01:55:04,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:55:04,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016375019] [2024-11-22 01:55:04,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:55:04,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:55:04,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:55:04,969 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 01:55:04,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:55:04,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016375019] [2024-11-22 01:55:04,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016375019] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:55:04,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:55:04,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:55:04,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411414993] [2024-11-22 01:55:04,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:55:04,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:55:04,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:55:04,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:55:04,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:55:04,971 INFO L87 Difference]: Start difference. First operand 18363 states and 31508 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:55:05,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:55:05,876 INFO L93 Difference]: Finished difference Result 48560 states and 83646 transitions. [2024-11-22 01:55:05,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:55:05,876 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 139 [2024-11-22 01:55:05,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:55:05,990 INFO L225 Difference]: With dead ends: 48560 [2024-11-22 01:55:05,991 INFO L226 Difference]: Without dead ends: 32807 [2024-11-22 01:55:06,027 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:55:06,028 INFO L432 NwaCegarLoop]: 500 mSDtfsCounter, 110 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 994 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 [2024-11-22 01:55:06,028 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 994 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:55:06,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32807 states. [2024-11-22 01:55:06,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32807 to 32799. [2024-11-22 01:55:06,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32799 states, 27057 states have (on average 1.6316664818716045) internal successors, (44148), 27063 states have internal predecessors, (44148), 5715 states have call successors, (5715), 23 states have call predecessors, (5715), 26 states have return successors, (6326), 5712 states have call predecessors, (6326), 5712 states have call successors, (6326) [2024-11-22 01:55:07,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32799 states to 32799 states and 56189 transitions. [2024-11-22 01:55:07,108 INFO L78 Accepts]: Start accepts. Automaton has 32799 states and 56189 transitions. Word has length 139 [2024-11-22 01:55:07,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:55:07,109 INFO L471 AbstractCegarLoop]: Abstraction has 32799 states and 56189 transitions. [2024-11-22 01:55:07,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:55:07,109 INFO L276 IsEmpty]: Start isEmpty. Operand 32799 states and 56189 transitions. [2024-11-22 01:55:07,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-22 01:55:07,137 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:55:07,137 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:55:07,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-22 01:55:07,138 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:55:07,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:55:07,138 INFO L85 PathProgramCache]: Analyzing trace with hash -818469753, now seen corresponding path program 1 times [2024-11-22 01:55:07,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:55:07,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210894463] [2024-11-22 01:55:07,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:55:07,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:55:07,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:55:07,182 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 01:55:07,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:55:07,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210894463] [2024-11-22 01:55:07,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210894463] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:55:07,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:55:07,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:55:07,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696293652] [2024-11-22 01:55:07,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:55:07,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:55:07,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:55:07,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:55:07,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:55:07,185 INFO L87 Difference]: Start difference. First operand 32799 states and 56189 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:55:08,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:55:08,538 INFO L93 Difference]: Finished difference Result 89457 states and 153748 transitions. [2024-11-22 01:55:08,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:55:08,539 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 140 [2024-11-22 01:55:08,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:55:08,842 INFO L225 Difference]: With dead ends: 89457 [2024-11-22 01:55:08,842 INFO L226 Difference]: Without dead ends: 60144 [2024-11-22 01:55:08,945 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:55:08,946 INFO L432 NwaCegarLoop]: 503 mSDtfsCounter, 108 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 997 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 [2024-11-22 01:55:08,946 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 997 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:55:08,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60144 states. [2024-11-22 01:55:11,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60144 to 60136. [2024-11-22 01:55:11,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60136 states, 49881 states have (on average 1.627292957238227) internal successors, (81171), 49887 states have internal predecessors, (81171), 10228 states have call successors, (10228), 23 states have call predecessors, (10228), 26 states have return successors, (11371), 10225 states have call predecessors, (11371), 10225 states have call successors, (11371) [2024-11-22 01:55:11,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60136 states to 60136 states and 102770 transitions. [2024-11-22 01:55:11,631 INFO L78 Accepts]: Start accepts. Automaton has 60136 states and 102770 transitions. Word has length 140 [2024-11-22 01:55:11,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:55:11,632 INFO L471 AbstractCegarLoop]: Abstraction has 60136 states and 102770 transitions. [2024-11-22 01:55:11,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:55:11,632 INFO L276 IsEmpty]: Start isEmpty. Operand 60136 states and 102770 transitions. [2024-11-22 01:55:11,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-22 01:55:11,671 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:55:11,671 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:55:11,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-22 01:55:11,672 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:55:11,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:55:11,672 INFO L85 PathProgramCache]: Analyzing trace with hash 627002398, now seen corresponding path program 1 times [2024-11-22 01:55:11,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:55:11,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793099672] [2024-11-22 01:55:11,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:55:11,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:55:11,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:55:11,722 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 01:55:11,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:55:11,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793099672] [2024-11-22 01:55:11,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793099672] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:55:11,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:55:11,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:55:11,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998677697] [2024-11-22 01:55:11,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:55:11,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:55:11,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:55:11,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:55:11,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:55:11,724 INFO L87 Difference]: Start difference. First operand 60136 states and 102770 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:55:14,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:55:14,039 INFO L93 Difference]: Finished difference Result 112548 states and 192757 transitions. [2024-11-22 01:55:14,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:55:14,041 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 141 [2024-11-22 01:55:14,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:55:14,487 INFO L225 Difference]: With dead ends: 112548 [2024-11-22 01:55:14,487 INFO L226 Difference]: Without dead ends: 112402 [2024-11-22 01:55:14,533 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:55:14,534 INFO L432 NwaCegarLoop]: 509 mSDtfsCounter, 103 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 1008 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:55:14,534 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 1008 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:55:14,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112402 states. [2024-11-22 01:55:17,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112402 to 112394. [2024-11-22 01:55:17,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112394 states, 93771 states have (on average 1.6218020496742063) internal successors, (152078), 93777 states have internal predecessors, (152078), 18596 states have call successors, (18596), 23 states have call predecessors, (18596), 26 states have return successors, (20785), 18593 states have call predecessors, (20785), 18593 states have call successors, (20785) [2024-11-22 01:55:18,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112394 states to 112394 states and 191459 transitions. [2024-11-22 01:55:18,867 INFO L78 Accepts]: Start accepts. Automaton has 112394 states and 191459 transitions. Word has length 141 [2024-11-22 01:55:18,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:55:18,869 INFO L471 AbstractCegarLoop]: Abstraction has 112394 states and 191459 transitions. [2024-11-22 01:55:18,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:55:18,870 INFO L276 IsEmpty]: Start isEmpty. Operand 112394 states and 191459 transitions. [2024-11-22 01:55:18,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-22 01:55:18,914 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:55:18,915 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:55:18,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-22 01:55:18,915 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:55:18,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:55:18,915 INFO L85 PathProgramCache]: Analyzing trace with hash 290111752, now seen corresponding path program 1 times [2024-11-22 01:55:18,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:55:18,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567997425] [2024-11-22 01:55:18,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:55:18,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:55:18,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:55:19,053 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 01:55:19,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:55:19,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567997425] [2024-11-22 01:55:19,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567997425] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:55:19,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:55:19,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 01:55:19,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939759010] [2024-11-22 01:55:19,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:55:19,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:55:19,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:55:19,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:55:19,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:55:19,055 INFO L87 Difference]: Start difference. First operand 112394 states and 191459 transitions. Second operand has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-22 01:55:21,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:55:21,701 INFO L93 Difference]: Finished difference Result 112823 states and 192047 transitions. [2024-11-22 01:55:21,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-22 01:55:21,701 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) Word has length 142 [2024-11-22 01:55:21,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:55:22,348 INFO L225 Difference]: With dead ends: 112823 [2024-11-22 01:55:22,348 INFO L226 Difference]: Without dead ends: 112689 [2024-11-22 01:55:22,416 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-11-22 01:55:22,417 INFO L432 NwaCegarLoop]: 717 mSDtfsCounter, 655 mSDsluCounter, 2164 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 659 SdHoareTripleChecker+Valid, 2881 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 01:55:22,417 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [659 Valid, 2881 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 01:55:22,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112689 states. [2024-11-22 01:55:26,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112689 to 112679. [2024-11-22 01:55:26,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112679 states, 93995 states have (on average 1.6213521995850844) internal successors, (152399), 94004 states have internal predecessors, (152399), 18628 states have call successors, (18628), 49 states have call predecessors, (18628), 55 states have return successors, (20821), 18625 states have call predecessors, (20821), 18621 states have call successors, (20821) [2024-11-22 01:55:26,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112679 states to 112679 states and 191848 transitions. [2024-11-22 01:55:26,822 INFO L78 Accepts]: Start accepts. Automaton has 112679 states and 191848 transitions. Word has length 142 [2024-11-22 01:55:26,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:55:26,823 INFO L471 AbstractCegarLoop]: Abstraction has 112679 states and 191848 transitions. [2024-11-22 01:55:26,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-22 01:55:26,823 INFO L276 IsEmpty]: Start isEmpty. Operand 112679 states and 191848 transitions. [2024-11-22 01:55:26,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-22 01:55:26,877 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:55:26,877 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:55:26,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-22 01:55:26,878 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:55:26,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:55:26,878 INFO L85 PathProgramCache]: Analyzing trace with hash -2094642251, now seen corresponding path program 1 times [2024-11-22 01:55:26,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:55:26,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196087305] [2024-11-22 01:55:26,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:55:26,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:55:26,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:55:27,173 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 01:55:27,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:55:27,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196087305] [2024-11-22 01:55:27,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196087305] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:55:27,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:55:27,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-22 01:55:27,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256420097] [2024-11-22 01:55:27,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:55:27,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-22 01:55:27,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:55:27,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-22 01:55:27,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2024-11-22 01:55:27,175 INFO L87 Difference]: Start difference. First operand 112679 states and 191848 transitions. Second operand has 13 states, 11 states have (on average 8.909090909090908) internal successors, (98), 11 states have internal predecessors, (98), 7 states have call successors, (18), 4 states have call predecessors, (18), 2 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-22 01:55:29,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:55:29,748 INFO L93 Difference]: Finished difference Result 113158 states and 192512 transitions. [2024-11-22 01:55:29,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-22 01:55:29,751 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 8.909090909090908) internal successors, (98), 11 states have internal predecessors, (98), 7 states have call successors, (18), 4 states have call predecessors, (18), 2 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) Word has length 143 [2024-11-22 01:55:29,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:55:30,215 INFO L225 Difference]: With dead ends: 113158 [2024-11-22 01:55:30,215 INFO L226 Difference]: Without dead ends: 112675 [2024-11-22 01:55:30,276 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2024-11-22 01:55:30,276 INFO L432 NwaCegarLoop]: 490 mSDtfsCounter, 98 mSDsluCounter, 5376 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 5866 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:55:30,277 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 5866 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:55:30,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112675 states. [2024-11-22 01:55:33,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112675 to 112667. [2024-11-22 01:55:33,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112667 states, 93985 states have (on average 1.6213757514496994) internal successors, (152385), 93994 states have internal predecessors, (152385), 18630 states have call successors, (18630), 49 states have call predecessors, (18630), 51 states have return successors, (20820), 18623 states have call predecessors, (20820), 18623 states have call successors, (20820) [2024-11-22 01:55:34,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112667 states to 112667 states and 191835 transitions. [2024-11-22 01:55:34,386 INFO L78 Accepts]: Start accepts. Automaton has 112667 states and 191835 transitions. Word has length 143 [2024-11-22 01:55:34,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:55:34,387 INFO L471 AbstractCegarLoop]: Abstraction has 112667 states and 191835 transitions. [2024-11-22 01:55:34,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 8.909090909090908) internal successors, (98), 11 states have internal predecessors, (98), 7 states have call successors, (18), 4 states have call predecessors, (18), 2 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-22 01:55:34,387 INFO L276 IsEmpty]: Start isEmpty. Operand 112667 states and 191835 transitions. [2024-11-22 01:55:34,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-22 01:55:34,440 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:55:34,440 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:55:34,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-22 01:55:34,440 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:55:34,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:55:34,441 INFO L85 PathProgramCache]: Analyzing trace with hash 1897977214, now seen corresponding path program 1 times [2024-11-22 01:55:34,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:55:34,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595291838] [2024-11-22 01:55:34,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:55:34,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:55:34,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:55:34,846 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-22 01:55:34,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:55:34,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595291838] [2024-11-22 01:55:34,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595291838] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:55:34,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [980252557] [2024-11-22 01:55:34,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:55:34,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:55:34,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:55:34,850 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:55:34,851 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-22 01:55:35,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:55:35,098 INFO L255 TraceCheckSpWp]: Trace formula consists of 1148 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-22 01:55:35,104 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:55:35,361 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-22 01:55:35,361 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:55:35,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [980252557] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:55:35,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:55:35,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [16] total 27 [2024-11-22 01:55:35,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175588209] [2024-11-22 01:55:35,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:55:35,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-22 01:55:35,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:55:35,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-22 01:55:35,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=639, Unknown=0, NotChecked=0, Total=702 [2024-11-22 01:55:35,363 INFO L87 Difference]: Start difference. First operand 112667 states and 191835 transitions. Second operand has 13 states, 12 states have (on average 9.0) internal successors, (108), 11 states have internal predecessors, (108), 6 states have call successors, (18), 5 states have call predecessors, (18), 6 states have return successors, (14), 7 states have call predecessors, (14), 5 states have call successors, (14) [2024-11-22 01:55:38,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:55:38,257 INFO L93 Difference]: Finished difference Result 113315 states and 192715 transitions. [2024-11-22 01:55:38,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-22 01:55:38,258 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 9.0) internal successors, (108), 11 states have internal predecessors, (108), 6 states have call successors, (18), 5 states have call predecessors, (18), 6 states have return successors, (14), 7 states have call predecessors, (14), 5 states have call successors, (14) Word has length 146 [2024-11-22 01:55:38,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:55:38,620 INFO L225 Difference]: With dead ends: 113315 [2024-11-22 01:55:38,620 INFO L226 Difference]: Without dead ends: 113156 [2024-11-22 01:55:38,656 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=172, Invalid=1468, Unknown=0, NotChecked=0, Total=1640 [2024-11-22 01:55:38,657 INFO L432 NwaCegarLoop]: 497 mSDtfsCounter, 745 mSDsluCounter, 4530 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 749 SdHoareTripleChecker+Valid, 5027 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 01:55:38,657 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [749 Valid, 5027 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 01:55:38,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113156 states.