./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec6_product12.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec6_product12.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 6a023004d1923934c700fbd43377f50b99f9b3dcadd2a9eb1f89b20b18aa1436 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 03:00:04,416 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 03:00:04,499 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 03:00:04,505 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 03:00:04,506 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 03:00:04,536 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 03:00:04,538 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 03:00:04,538 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 03:00:04,539 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 03:00:04,543 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 03:00:04,543 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 03:00:04,543 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 03:00:04,544 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 03:00:04,544 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 03:00:04,545 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 03:00:04,545 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 03:00:04,545 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 03:00:04,547 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 03:00:04,547 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 03:00:04,547 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 03:00:04,548 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 03:00:04,548 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 03:00:04,549 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 03:00:04,550 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 03:00:04,550 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 03:00:04,550 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 03:00:04,551 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 03:00:04,551 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 03:00:04,551 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 03:00:04,552 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 03:00:04,552 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 03:00:04,552 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 03:00:04,553 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 03:00:04,562 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 03:00:04,562 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 03:00:04,562 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 03:00:04,562 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 03:00:04,563 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 03:00:04,563 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 03:00:04,563 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 03:00:04,563 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 03:00:04,564 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 03:00:04,564 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6a023004d1923934c700fbd43377f50b99f9b3dcadd2a9eb1f89b20b18aa1436 [2024-10-14 03:00:04,826 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 03:00:04,851 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 03:00:04,855 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 03:00:04,856 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 03:00:04,856 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 03:00:04,858 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec6_product12.cil.c [2024-10-14 03:00:06,403 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 03:00:06,721 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 03:00:06,721 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec6_product12.cil.c [2024-10-14 03:00:06,742 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/147a96c56/123cb81c7bef48db9a3bfe3e82d0d36c/FLAGb94a95e04 [2024-10-14 03:00:06,754 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/147a96c56/123cb81c7bef48db9a3bfe3e82d0d36c [2024-10-14 03:00:06,756 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 03:00:06,757 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 03:00:06,758 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 03:00:06,758 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 03:00:06,763 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 03:00:06,763 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:00:06" (1/1) ... [2024-10-14 03:00:06,764 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ba3c7a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:00:06, skipping insertion in model container [2024-10-14 03:00:06,764 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:00:06" (1/1) ... [2024-10-14 03:00:06,829 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 03:00:07,370 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec6_product12.cil.c[52000,52013] [2024-10-14 03:00:07,411 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 03:00:07,426 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 03:00:07,438 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [48] [2024-10-14 03:00:07,440 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [97] [2024-10-14 03:00:07,441 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [210] [2024-10-14 03:00:07,441 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [576] [2024-10-14 03:00:07,441 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [864] [2024-10-14 03:00:07,441 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1937] [2024-10-14 03:00:07,441 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2342] [2024-10-14 03:00:07,442 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2351] [2024-10-14 03:00:07,442 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptDecrypt_spec.i","") [2583] [2024-10-14 03:00:07,442 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2629] [2024-10-14 03:00:07,443 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2646] [2024-10-14 03:00:07,508 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec6_product12.cil.c[52000,52013] [2024-10-14 03:00:07,519 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 03:00:07,558 INFO L204 MainTranslator]: Completed translation [2024-10-14 03:00:07,559 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:00:07 WrapperNode [2024-10-14 03:00:07,559 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 03:00:07,560 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 03:00:07,560 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 03:00:07,560 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 03:00:07,567 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:00:07" (1/1) ... [2024-10-14 03:00:07,601 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:00:07" (1/1) ... [2024-10-14 03:00:07,657 INFO L138 Inliner]: procedures = 123, calls = 179, calls flagged for inlining = 49, calls inlined = 39, statements flattened = 811 [2024-10-14 03:00:07,661 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 03:00:07,662 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 03:00:07,663 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 03:00:07,663 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 03:00:07,683 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:00:07" (1/1) ... [2024-10-14 03:00:07,687 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:00:07" (1/1) ... [2024-10-14 03:00:07,700 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:00:07" (1/1) ... [2024-10-14 03:00:07,737 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4]. 29 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0]. [2024-10-14 03:00:07,741 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:00:07" (1/1) ... [2024-10-14 03:00:07,741 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:00:07" (1/1) ... [2024-10-14 03:00:07,764 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:00:07" (1/1) ... [2024-10-14 03:00:07,774 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:00:07" (1/1) ... [2024-10-14 03:00:07,782 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:00:07" (1/1) ... [2024-10-14 03:00:07,789 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:00:07" (1/1) ... [2024-10-14 03:00:07,806 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 03:00:07,807 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 03:00:07,807 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 03:00:07,807 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 03:00:07,808 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:00:07" (1/1) ... [2024-10-14 03:00:07,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 03:00:07,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 03:00:07,848 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 03:00:07,850 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 03:00:07,905 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-10-14 03:00:07,905 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-10-14 03:00:07,905 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-10-14 03:00:07,905 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-10-14 03:00:07,905 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-10-14 03:00:07,905 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-10-14 03:00:07,906 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-10-14 03:00:07,906 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-10-14 03:00:07,907 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-10-14 03:00:07,907 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-10-14 03:00:07,907 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-10-14 03:00:07,907 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-10-14 03:00:07,907 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-10-14 03:00:07,907 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-10-14 03:00:07,908 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-10-14 03:00:07,908 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-10-14 03:00:07,908 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-10-14 03:00:07,909 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-10-14 03:00:07,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 03:00:07,910 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-10-14 03:00:07,910 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-10-14 03:00:07,910 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-10-14 03:00:07,910 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-10-14 03:00:07,910 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-10-14 03:00:07,910 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-10-14 03:00:07,910 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-10-14 03:00:07,911 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-10-14 03:00:07,911 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-10-14 03:00:07,911 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-10-14 03:00:07,911 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-10-14 03:00:07,911 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-10-14 03:00:07,911 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-10-14 03:00:07,912 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-10-14 03:00:07,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 03:00:07,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-14 03:00:07,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-14 03:00:07,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-14 03:00:07,913 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-10-14 03:00:07,913 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-10-14 03:00:07,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 03:00:07,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 03:00:08,117 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 03:00:08,120 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 03:00:08,978 INFO L? ?]: Removed 334 outVars from TransFormulas that were not future-live. [2024-10-14 03:00:08,978 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 03:00:09,068 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 03:00:09,069 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 03:00:09,069 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:00:09 BoogieIcfgContainer [2024-10-14 03:00:09,069 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 03:00:09,072 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 03:00:09,072 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 03:00:09,076 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 03:00:09,076 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 03:00:06" (1/3) ... [2024-10-14 03:00:09,077 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@331a9ab3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:00:09, skipping insertion in model container [2024-10-14 03:00:09,077 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:00:07" (2/3) ... [2024-10-14 03:00:09,078 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@331a9ab3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:00:09, skipping insertion in model container [2024-10-14 03:00:09,078 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:00:09" (3/3) ... [2024-10-14 03:00:09,079 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec6_product12.cil.c [2024-10-14 03:00:09,100 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 03:00:09,101 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 03:00:09,200 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 03:00:09,209 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;@ddce5f3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 03:00:09,210 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 03:00:09,218 INFO L276 IsEmpty]: Start isEmpty. Operand has 252 states, 190 states have (on average 1.6) internal successors, (304), 194 states have internal predecessors, (304), 43 states have call successors, (43), 17 states have call predecessors, (43), 17 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2024-10-14 03:00:09,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-10-14 03:00:09,239 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:00:09,240 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:00:09,241 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:00:09,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:00:09,245 INFO L85 PathProgramCache]: Analyzing trace with hash -306622727, now seen corresponding path program 1 times [2024-10-14 03:00:09,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:00:09,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199976394] [2024-10-14 03:00:09,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:00:09,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:00:09,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:09,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 03:00:09,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:09,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 03:00:09,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:09,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 03:00:09,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:10,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 03:00:10,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:10,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 03:00:10,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:10,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 03:00:10,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:10,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-14 03:00:10,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:10,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-14 03:00:10,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:10,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 03:00:10,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:10,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 03:00:10,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:10,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 03:00:10,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:10,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 03:00:10,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:10,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 03:00:10,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:10,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-14 03:00:10,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:10,119 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-10-14 03:00:10,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:00:10,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199976394] [2024-10-14 03:00:10,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199976394] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 03:00:10,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1358766951] [2024-10-14 03:00:10,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:00:10,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 03:00:10,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 03:00:10,126 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 03:00:10,127 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 03:00:10,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:10,445 INFO L255 TraceCheckSpWp]: Trace formula consists of 966 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-14 03:00:10,455 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 03:00:10,480 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-10-14 03:00:10,483 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 03:00:10,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1358766951] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:00:10,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 03:00:10,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [8] total 8 [2024-10-14 03:00:10,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299113964] [2024-10-14 03:00:10,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:00:10,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 03:00:10,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:00:10,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 03:00:10,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-14 03:00:10,529 INFO L87 Difference]: Start difference. First operand has 252 states, 190 states have (on average 1.6) internal successors, (304), 194 states have internal predecessors, (304), 43 states have call successors, (43), 17 states have call predecessors, (43), 17 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) Second operand has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-14 03:00:10,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:00:10,610 INFO L93 Difference]: Finished difference Result 363 states and 550 transitions. [2024-10-14 03:00:10,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 03:00:10,613 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 104 [2024-10-14 03:00:10,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:00:10,625 INFO L225 Difference]: With dead ends: 363 [2024-10-14 03:00:10,625 INFO L226 Difference]: Without dead ends: 249 [2024-10-14 03:00:10,634 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-14 03:00:10,640 INFO L432 NwaCegarLoop]: 376 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:00:10,646 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 376 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:00:10,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2024-10-14 03:00:10,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 249. [2024-10-14 03:00:10,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 188 states have (on average 1.5797872340425532) internal successors, (297), 191 states have internal predecessors, (297), 43 states have call successors, (43), 17 states have call predecessors, (43), 17 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-14 03:00:10,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 382 transitions. [2024-10-14 03:00:10,744 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 382 transitions. Word has length 104 [2024-10-14 03:00:10,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:00:10,746 INFO L471 AbstractCegarLoop]: Abstraction has 249 states and 382 transitions. [2024-10-14 03:00:10,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-14 03:00:10,747 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 382 transitions. [2024-10-14 03:00:10,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-10-14 03:00:10,752 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:00:10,752 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:00:10,774 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-14 03:00:10,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-10-14 03:00:10,957 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:00:10,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:00:10,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1081114270, now seen corresponding path program 1 times [2024-10-14 03:00:10,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:00:10,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757063808] [2024-10-14 03:00:10,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:00:10,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:00:10,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:11,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 03:00:11,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:11,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 03:00:11,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:11,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 03:00:11,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:11,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 03:00:11,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:11,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 03:00:11,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:11,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 03:00:11,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:11,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-14 03:00:11,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:11,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 03:00:11,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:11,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-14 03:00:11,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:11,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 03:00:11,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:11,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 03:00:11,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:11,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-14 03:00:11,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:11,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-14 03:00:11,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:11,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-14 03:00:11,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:11,279 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-10-14 03:00:11,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:00:11,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757063808] [2024-10-14 03:00:11,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757063808] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 03:00:11,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1589468710] [2024-10-14 03:00:11,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:00:11,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 03:00:11,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 03:00:11,285 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 03:00:11,286 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 03:00:11,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:11,590 INFO L255 TraceCheckSpWp]: Trace formula consists of 967 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-14 03:00:11,600 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 03:00:11,632 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-10-14 03:00:11,636 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 03:00:11,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1589468710] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:00:11,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 03:00:11,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-10-14 03:00:11,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222831799] [2024-10-14 03:00:11,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:00:11,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:00:11,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:00:11,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:00:11,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-14 03:00:11,641 INFO L87 Difference]: Start difference. First operand 249 states and 382 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-14 03:00:11,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:00:11,705 INFO L93 Difference]: Finished difference Result 359 states and 537 transitions. [2024-10-14 03:00:11,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:00:11,706 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 105 [2024-10-14 03:00:11,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:00:11,709 INFO L225 Difference]: With dead ends: 359 [2024-10-14 03:00:11,709 INFO L226 Difference]: Without dead ends: 251 [2024-10-14 03:00:11,711 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-14 03:00:11,712 INFO L432 NwaCegarLoop]: 373 mSDtfsCounter, 0 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 745 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:00:11,712 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 745 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:00:11,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2024-10-14 03:00:11,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 251. [2024-10-14 03:00:11,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 190 states have (on average 1.5736842105263158) internal successors, (299), 193 states have internal predecessors, (299), 43 states have call successors, (43), 17 states have call predecessors, (43), 17 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-14 03:00:11,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 384 transitions. [2024-10-14 03:00:11,742 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 384 transitions. Word has length 105 [2024-10-14 03:00:11,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:00:11,742 INFO L471 AbstractCegarLoop]: Abstraction has 251 states and 384 transitions. [2024-10-14 03:00:11,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-14 03:00:11,743 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 384 transitions. [2024-10-14 03:00:11,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-10-14 03:00:11,746 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:00:11,746 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:00:11,766 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-14 03:00:11,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-10-14 03:00:11,947 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:00:11,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:00:11,948 INFO L85 PathProgramCache]: Analyzing trace with hash -188517010, now seen corresponding path program 1 times [2024-10-14 03:00:11,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:00:11,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258326971] [2024-10-14 03:00:11,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:00:11,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:00:11,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:12,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 03:00:12,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:12,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 03:00:12,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:12,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 03:00:12,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:12,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 03:00:12,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:12,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 03:00:12,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:12,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 03:00:12,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:12,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-14 03:00:12,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:12,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 03:00:12,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:12,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 03:00:12,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:12,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 03:00:12,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:12,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 03:00:12,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:12,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 03:00:12,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:12,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-14 03:00:12,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:12,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 03:00:12,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:12,173 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-14 03:00:12,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:00:12,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258326971] [2024-10-14 03:00:12,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258326971] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 03:00:12,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1664981765] [2024-10-14 03:00:12,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:00:12,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 03:00:12,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 03:00:12,177 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 03:00:12,178 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-14 03:00:12,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:12,441 INFO L255 TraceCheckSpWp]: Trace formula consists of 979 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 03:00:12,445 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 03:00:12,473 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-10-14 03:00:12,473 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 03:00:12,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1664981765] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:00:12,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 03:00:12,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-10-14 03:00:12,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626347970] [2024-10-14 03:00:12,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:00:12,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:00:12,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:00:12,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:00:12,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-14 03:00:12,477 INFO L87 Difference]: Start difference. First operand 251 states and 384 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-14 03:00:12,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:00:12,541 INFO L93 Difference]: Finished difference Result 528 states and 820 transitions. [2024-10-14 03:00:12,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:00:12,543 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 110 [2024-10-14 03:00:12,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:00:12,546 INFO L225 Difference]: With dead ends: 528 [2024-10-14 03:00:12,546 INFO L226 Difference]: Without dead ends: 299 [2024-10-14 03:00:12,549 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-14 03:00:12,550 INFO L432 NwaCegarLoop]: 383 mSDtfsCounter, 95 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 712 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:00:12,550 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 712 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:00:12,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2024-10-14 03:00:12,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 294. [2024-10-14 03:00:12,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 222 states have (on average 1.5855855855855856) internal successors, (352), 225 states have internal predecessors, (352), 54 states have call successors, (54), 17 states have call predecessors, (54), 17 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2024-10-14 03:00:12,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 459 transitions. [2024-10-14 03:00:12,573 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 459 transitions. Word has length 110 [2024-10-14 03:00:12,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:00:12,573 INFO L471 AbstractCegarLoop]: Abstraction has 294 states and 459 transitions. [2024-10-14 03:00:12,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-14 03:00:12,574 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 459 transitions. [2024-10-14 03:00:12,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-14 03:00:12,576 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:00:12,576 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:00:12,596 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-14 03:00:12,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 03:00:12,777 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:00:12,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:00:12,778 INFO L85 PathProgramCache]: Analyzing trace with hash -2121442329, now seen corresponding path program 1 times [2024-10-14 03:00:12,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:00:12,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425906] [2024-10-14 03:00:12,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:00:12,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:00:12,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:12,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 03:00:12,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:12,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 03:00:12,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:12,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 03:00:12,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:12,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 03:00:12,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:12,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 03:00:12,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:12,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 03:00:12,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:13,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-14 03:00:13,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:13,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 03:00:13,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:13,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 03:00:13,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:13,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 03:00:13,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:13,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 03:00:13,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:13,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-14 03:00:13,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:13,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-14 03:00:13,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:13,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-14 03:00:13,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:13,028 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-14 03:00:13,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:00:13,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425906] [2024-10-14 03:00:13,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425906] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 03:00:13,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2146867554] [2024-10-14 03:00:13,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:00:13,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 03:00:13,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 03:00:13,032 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 03:00:13,033 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-14 03:00:13,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:13,298 INFO L255 TraceCheckSpWp]: Trace formula consists of 984 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-14 03:00:13,303 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 03:00:13,389 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-14 03:00:13,389 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 03:00:13,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2146867554] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:00:13,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 03:00:13,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2024-10-14 03:00:13,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895062017] [2024-10-14 03:00:13,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:00:13,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:00:13,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:00:13,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:00:13,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-10-14 03:00:13,394 INFO L87 Difference]: Start difference. First operand 294 states and 459 transitions. Second operand has 5 states, 4 states have (on average 17.75) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-14 03:00:13,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:00:13,491 INFO L93 Difference]: Finished difference Result 583 states and 912 transitions. [2024-10-14 03:00:13,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 03:00:13,493 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.75) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 111 [2024-10-14 03:00:13,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:00:13,496 INFO L225 Difference]: With dead ends: 583 [2024-10-14 03:00:13,496 INFO L226 Difference]: Without dead ends: 296 [2024-10-14 03:00:13,499 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-10-14 03:00:13,501 INFO L432 NwaCegarLoop]: 365 mSDtfsCounter, 2 mSDsluCounter, 1084 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1449 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:00:13,504 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1449 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:00:13,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2024-10-14 03:00:13,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 296. [2024-10-14 03:00:13,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 223 states have (on average 1.5829596412556053) internal successors, (353), 227 states have internal predecessors, (353), 54 states have call successors, (54), 17 states have call predecessors, (54), 18 states have return successors, (55), 53 states have call predecessors, (55), 53 states have call successors, (55) [2024-10-14 03:00:13,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 462 transitions. [2024-10-14 03:00:13,530 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 462 transitions. Word has length 111 [2024-10-14 03:00:13,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:00:13,531 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 462 transitions. [2024-10-14 03:00:13,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.75) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-14 03:00:13,531 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 462 transitions. [2024-10-14 03:00:13,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-10-14 03:00:13,533 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:00:13,534 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:00:13,553 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-14 03:00:13,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 03:00:13,738 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:00:13,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:00:13,738 INFO L85 PathProgramCache]: Analyzing trace with hash -739674531, now seen corresponding path program 1 times [2024-10-14 03:00:13,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:00:13,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715997] [2024-10-14 03:00:13,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:00:13,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:00:13,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:13,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 03:00:13,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:13,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 03:00:13,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:13,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 03:00:13,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:13,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 03:00:13,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:13,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-14 03:00:13,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:13,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-14 03:00:13,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:13,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 03:00:13,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:13,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-14 03:00:13,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:13,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 03:00:13,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:14,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 03:00:14,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:14,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-14 03:00:14,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:14,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 03:00:14,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:14,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 03:00:14,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:14,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 03:00:14,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:14,015 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-14 03:00:14,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:00:14,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715997] [2024-10-14 03:00:14,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715997] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 03:00:14,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [111944221] [2024-10-14 03:00:14,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:00:14,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 03:00:14,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 03:00:14,019 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 03:00:14,020 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-14 03:00:14,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:14,308 INFO L255 TraceCheckSpWp]: Trace formula consists of 985 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-14 03:00:14,312 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 03:00:14,377 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-14 03:00:14,377 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 03:00:14,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [111944221] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:00:14,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 03:00:14,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 14 [2024-10-14 03:00:14,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969182479] [2024-10-14 03:00:14,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:00:14,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:00:14,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:00:14,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:00:14,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-10-14 03:00:14,380 INFO L87 Difference]: Start difference. First operand 296 states and 462 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-14 03:00:14,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:00:14,485 INFO L93 Difference]: Finished difference Result 585 states and 917 transitions. [2024-10-14 03:00:14,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 03:00:14,485 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 112 [2024-10-14 03:00:14,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:00:14,488 INFO L225 Difference]: With dead ends: 585 [2024-10-14 03:00:14,488 INFO L226 Difference]: Without dead ends: 298 [2024-10-14 03:00:14,489 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-10-14 03:00:14,490 INFO L432 NwaCegarLoop]: 363 mSDtfsCounter, 2 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1435 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:00:14,491 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1435 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:00:14,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2024-10-14 03:00:14,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2024-10-14 03:00:14,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 224 states have (on average 1.5803571428571428) internal successors, (354), 229 states have internal predecessors, (354), 54 states have call successors, (54), 17 states have call predecessors, (54), 19 states have return successors, (60), 53 states have call predecessors, (60), 53 states have call successors, (60) [2024-10-14 03:00:14,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 468 transitions. [2024-10-14 03:00:14,507 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 468 transitions. Word has length 112 [2024-10-14 03:00:14,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:00:14,507 INFO L471 AbstractCegarLoop]: Abstraction has 298 states and 468 transitions. [2024-10-14 03:00:14,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-14 03:00:14,508 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 468 transitions. [2024-10-14 03:00:14,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-10-14 03:00:14,509 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:00:14,510 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:00:14,528 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-14 03:00:14,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 03:00:14,711 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:00:14,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:00:14,711 INFO L85 PathProgramCache]: Analyzing trace with hash 842230276, now seen corresponding path program 1 times [2024-10-14 03:00:14,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:00:14,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378392047] [2024-10-14 03:00:14,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:00:14,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:00:14,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:14,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 03:00:14,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:14,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 03:00:14,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:14,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 03:00:14,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:14,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 03:00:14,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:14,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 03:00:14,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:14,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-14 03:00:14,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:14,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 03:00:14,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:14,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-14 03:00:14,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:14,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 03:00:14,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:14,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 03:00:14,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:14,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 03:00:14,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:14,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-14 03:00:14,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:14,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-14 03:00:14,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:14,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-14 03:00:14,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:14,915 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-14 03:00:14,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:00:14,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378392047] [2024-10-14 03:00:14,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378392047] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:00:14,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:00:14,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 03:00:14,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203861846] [2024-10-14 03:00:14,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:00:14,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 03:00:14,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:00:14,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 03:00:14,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-14 03:00:14,922 INFO L87 Difference]: Start difference. First operand 298 states and 468 transitions. Second operand has 8 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-14 03:00:16,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:00:16,215 INFO L93 Difference]: Finished difference Result 623 states and 984 transitions. [2024-10-14 03:00:16,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 03:00:16,215 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 113 [2024-10-14 03:00:16,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:00:16,218 INFO L225 Difference]: With dead ends: 623 [2024-10-14 03:00:16,219 INFO L226 Difference]: Without dead ends: 344 [2024-10-14 03:00:16,220 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2024-10-14 03:00:16,221 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 566 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 1465 mSolverCounterSat, 187 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 567 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 1652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 187 IncrementalHoareTripleChecker+Valid, 1465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:00:16,221 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [567 Valid, 817 Invalid, 1652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [187 Valid, 1465 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-14 03:00:16,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2024-10-14 03:00:16,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 298. [2024-10-14 03:00:16,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 224 states have (on average 1.5803571428571428) internal successors, (354), 229 states have internal predecessors, (354), 54 states have call successors, (54), 17 states have call predecessors, (54), 19 states have return successors, (59), 53 states have call predecessors, (59), 53 states have call successors, (59) [2024-10-14 03:00:16,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 467 transitions. [2024-10-14 03:00:16,250 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 467 transitions. Word has length 113 [2024-10-14 03:00:16,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:00:16,250 INFO L471 AbstractCegarLoop]: Abstraction has 298 states and 467 transitions. [2024-10-14 03:00:16,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-14 03:00:16,251 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 467 transitions. [2024-10-14 03:00:16,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-14 03:00:16,253 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:00:16,253 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:00:16,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 03:00:16,253 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:00:16,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:00:16,254 INFO L85 PathProgramCache]: Analyzing trace with hash -832509480, now seen corresponding path program 2 times [2024-10-14 03:00:16,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:00:16,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049644588] [2024-10-14 03:00:16,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:00:16,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:00:16,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:16,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 03:00:16,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:16,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 03:00:16,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:16,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 03:00:16,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:16,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 03:00:16,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:16,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 03:00:16,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:16,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 03:00:16,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:16,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-14 03:00:16,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:16,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 03:00:16,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:16,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-14 03:00:16,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:16,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-14 03:00:16,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:16,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-14 03:00:16,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:16,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-14 03:00:16,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:16,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-14 03:00:16,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:16,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 03:00:16,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:16,468 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-14 03:00:16,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:00:16,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049644588] [2024-10-14 03:00:16,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049644588] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:00:16,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:00:16,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 03:00:16,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546831376] [2024-10-14 03:00:16,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:00:16,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 03:00:16,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:00:16,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 03:00:16,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-14 03:00:16,471 INFO L87 Difference]: Start difference. First operand 298 states and 467 transitions. Second operand has 8 states, 7 states have (on average 10.0) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-14 03:00:17,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:00:17,674 INFO L93 Difference]: Finished difference Result 625 states and 987 transitions. [2024-10-14 03:00:17,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 03:00:17,675 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.0) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 114 [2024-10-14 03:00:17,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:00:17,678 INFO L225 Difference]: With dead ends: 625 [2024-10-14 03:00:17,678 INFO L226 Difference]: Without dead ends: 346 [2024-10-14 03:00:17,680 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2024-10-14 03:00:17,681 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 563 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 1480 mSolverCounterSat, 187 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 564 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 1667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 187 IncrementalHoareTripleChecker+Valid, 1480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:00:17,681 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [564 Valid, 817 Invalid, 1667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [187 Valid, 1480 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-14 03:00:17,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2024-10-14 03:00:17,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 300. [2024-10-14 03:00:17,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 225 states have (on average 1.5777777777777777) internal successors, (355), 231 states have internal predecessors, (355), 54 states have call successors, (54), 17 states have call predecessors, (54), 20 states have return successors, (61), 53 states have call predecessors, (61), 53 states have call successors, (61) [2024-10-14 03:00:17,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 470 transitions. [2024-10-14 03:00:17,705 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 470 transitions. Word has length 114 [2024-10-14 03:00:17,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:00:17,705 INFO L471 AbstractCegarLoop]: Abstraction has 300 states and 470 transitions. [2024-10-14 03:00:17,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.0) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-14 03:00:17,706 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 470 transitions. [2024-10-14 03:00:17,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-10-14 03:00:17,708 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:00:17,708 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:00:17,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 03:00:17,708 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:00:17,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:00:17,709 INFO L85 PathProgramCache]: Analyzing trace with hash -45177527, now seen corresponding path program 1 times [2024-10-14 03:00:17,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:00:17,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248715759] [2024-10-14 03:00:17,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:00:17,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:00:17,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:17,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 03:00:17,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:17,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 03:00:17,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:17,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 03:00:17,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:17,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 03:00:17,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:17,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 03:00:17,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:17,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 03:00:17,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:17,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 03:00:17,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:17,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-14 03:00:17,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:17,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-14 03:00:17,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:17,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-14 03:00:17,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:17,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-14 03:00:17,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:17,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 03:00:17,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:17,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 03:00:17,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:17,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 03:00:17,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:17,948 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-14 03:00:17,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:00:17,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248715759] [2024-10-14 03:00:17,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248715759] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:00:17,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:00:17,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-14 03:00:17,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902044453] [2024-10-14 03:00:17,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:00:17,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-14 03:00:17,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:00:17,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-14 03:00:17,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-10-14 03:00:17,951 INFO L87 Difference]: Start difference. First operand 300 states and 470 transitions. Second operand has 11 states, 10 states have (on average 7.4) internal successors, (74), 8 states have internal predecessors, (74), 4 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-14 03:00:19,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:00:19,538 INFO L93 Difference]: Finished difference Result 623 states and 982 transitions. [2024-10-14 03:00:19,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-14 03:00:19,539 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 7.4) internal successors, (74), 8 states have internal predecessors, (74), 4 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 115 [2024-10-14 03:00:19,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:00:19,542 INFO L225 Difference]: With dead ends: 623 [2024-10-14 03:00:19,542 INFO L226 Difference]: Without dead ends: 346 [2024-10-14 03:00:19,544 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=305, Unknown=0, NotChecked=0, Total=380 [2024-10-14 03:00:19,546 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 566 mSDsluCounter, 1023 mSDsCounter, 0 mSdLazyCounter, 2494 mSolverCounterSat, 192 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 567 SdHoareTripleChecker+Valid, 1174 SdHoareTripleChecker+Invalid, 2686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 192 IncrementalHoareTripleChecker+Valid, 2494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-14 03:00:19,546 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [567 Valid, 1174 Invalid, 2686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [192 Valid, 2494 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-14 03:00:19,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2024-10-14 03:00:19,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 300. [2024-10-14 03:00:19,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 225 states have (on average 1.5777777777777777) internal successors, (355), 231 states have internal predecessors, (355), 54 states have call successors, (54), 17 states have call predecessors, (54), 20 states have return successors, (60), 53 states have call predecessors, (60), 53 states have call successors, (60) [2024-10-14 03:00:19,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 469 transitions. [2024-10-14 03:00:19,579 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 469 transitions. Word has length 115 [2024-10-14 03:00:19,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:00:19,580 INFO L471 AbstractCegarLoop]: Abstraction has 300 states and 469 transitions. [2024-10-14 03:00:19,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 7.4) internal successors, (74), 8 states have internal predecessors, (74), 4 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-14 03:00:19,580 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 469 transitions. [2024-10-14 03:00:19,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-10-14 03:00:19,583 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:00:19,583 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:00:19,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 03:00:19,584 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:00:19,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:00:19,584 INFO L85 PathProgramCache]: Analyzing trace with hash -695977524, now seen corresponding path program 2 times [2024-10-14 03:00:19,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:00:19,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020395869] [2024-10-14 03:00:19,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:00:19,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:00:19,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:19,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 03:00:19,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:19,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 03:00:19,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:19,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 03:00:19,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:19,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 03:00:19,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:19,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 03:00:19,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:19,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 03:00:19,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:19,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-14 03:00:19,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:19,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-14 03:00:19,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:19,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 03:00:19,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:19,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 03:00:19,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:19,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 03:00:19,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:19,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-14 03:00:19,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:19,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 03:00:19,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:19,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 03:00:19,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:19,919 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-14 03:00:19,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:00:19,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020395869] [2024-10-14 03:00:19,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020395869] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:00:19,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:00:19,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-14 03:00:19,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790430462] [2024-10-14 03:00:19,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:00:19,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-14 03:00:19,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:00:19,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-14 03:00:19,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-10-14 03:00:19,923 INFO L87 Difference]: Start difference. First operand 300 states and 469 transitions. Second operand has 11 states, 10 states have (on average 7.5) internal successors, (75), 8 states have internal predecessors, (75), 4 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-14 03:00:21,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:00:21,461 INFO L93 Difference]: Finished difference Result 625 states and 988 transitions. [2024-10-14 03:00:21,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-14 03:00:21,461 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 7.5) internal successors, (75), 8 states have internal predecessors, (75), 4 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 116 [2024-10-14 03:00:21,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:00:21,464 INFO L225 Difference]: With dead ends: 625 [2024-10-14 03:00:21,464 INFO L226 Difference]: Without dead ends: 348 [2024-10-14 03:00:21,466 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=305, Unknown=0, NotChecked=0, Total=380 [2024-10-14 03:00:21,466 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 563 mSDsluCounter, 1023 mSDsCounter, 0 mSdLazyCounter, 2528 mSolverCounterSat, 190 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 564 SdHoareTripleChecker+Valid, 1175 SdHoareTripleChecker+Invalid, 2718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 190 IncrementalHoareTripleChecker+Valid, 2528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-14 03:00:21,467 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [564 Valid, 1175 Invalid, 2718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [190 Valid, 2528 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-14 03:00:21,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2024-10-14 03:00:21,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 302. [2024-10-14 03:00:21,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 226 states have (on average 1.575221238938053) internal successors, (356), 233 states have internal predecessors, (356), 54 states have call successors, (54), 17 states have call predecessors, (54), 21 states have return successors, (65), 53 states have call predecessors, (65), 53 states have call successors, (65) [2024-10-14 03:00:21,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 475 transitions. [2024-10-14 03:00:21,513 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 475 transitions. Word has length 116 [2024-10-14 03:00:21,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:00:21,513 INFO L471 AbstractCegarLoop]: Abstraction has 302 states and 475 transitions. [2024-10-14 03:00:21,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 7.5) internal successors, (75), 8 states have internal predecessors, (75), 4 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-14 03:00:21,514 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 475 transitions. [2024-10-14 03:00:21,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-10-14 03:00:21,516 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:00:21,516 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:00:21,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 03:00:21,517 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:00:21,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:00:21,517 INFO L85 PathProgramCache]: Analyzing trace with hash 671723054, now seen corresponding path program 1 times [2024-10-14 03:00:21,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:00:21,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043223251] [2024-10-14 03:00:21,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:00:21,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:00:21,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:21,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 03:00:21,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:21,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 03:00:21,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:21,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 03:00:21,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:21,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 03:00:21,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:21,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 03:00:21,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:21,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 03:00:21,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:21,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-14 03:00:21,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:21,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 03:00:21,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:21,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 03:00:21,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:21,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 03:00:21,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:21,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 03:00:21,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:21,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-14 03:00:21,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:21,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-14 03:00:21,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:21,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-14 03:00:21,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:21,693 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-14 03:00:21,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:00:21,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043223251] [2024-10-14 03:00:21,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043223251] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 03:00:21,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1923505932] [2024-10-14 03:00:21,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:00:21,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 03:00:21,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 03:00:21,696 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 03:00:21,697 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-14 03:00:21,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:21,967 INFO L255 TraceCheckSpWp]: Trace formula consists of 990 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 03:00:21,970 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 03:00:21,993 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-14 03:00:21,994 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 03:00:22,087 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-14 03:00:22,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1923505932] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 03:00:22,088 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 03:00:22,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 10 [2024-10-14 03:00:22,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217219898] [2024-10-14 03:00:22,089 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 03:00:22,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 03:00:22,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:00:22,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 03:00:22,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-10-14 03:00:22,093 INFO L87 Difference]: Start difference. First operand 302 states and 475 transitions. Second operand has 10 states, 10 states have (on average 10.4) internal successors, (104), 7 states have internal predecessors, (104), 2 states have call successors, (32), 5 states have call predecessors, (32), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-10-14 03:00:23,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:00:23,307 INFO L93 Difference]: Finished difference Result 766 states and 1273 transitions. [2024-10-14 03:00:23,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 03:00:23,308 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.4) internal successors, (104), 7 states have internal predecessors, (104), 2 states have call successors, (32), 5 states have call predecessors, (32), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 117 [2024-10-14 03:00:23,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:00:23,312 INFO L225 Difference]: With dead ends: 766 [2024-10-14 03:00:23,313 INFO L226 Difference]: Without dead ends: 658 [2024-10-14 03:00:23,313 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2024-10-14 03:00:23,314 INFO L432 NwaCegarLoop]: 202 mSDtfsCounter, 890 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 1323 mSolverCounterSat, 298 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 935 SdHoareTripleChecker+Valid, 1131 SdHoareTripleChecker+Invalid, 1621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 298 IncrementalHoareTripleChecker+Valid, 1323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:00:23,314 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [935 Valid, 1131 Invalid, 1621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [298 Valid, 1323 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-14 03:00:23,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2024-10-14 03:00:23,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 597. [2024-10-14 03:00:23,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 597 states, 457 states have (on average 1.6323851203501094) internal successors, (746), 464 states have internal predecessors, (746), 118 states have call successors, (118), 17 states have call predecessors, (118), 21 states have return successors, (139), 117 states have call predecessors, (139), 117 states have call successors, (139) [2024-10-14 03:00:23,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 1003 transitions. [2024-10-14 03:00:23,349 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 1003 transitions. Word has length 117 [2024-10-14 03:00:23,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:00:23,350 INFO L471 AbstractCegarLoop]: Abstraction has 597 states and 1003 transitions. [2024-10-14 03:00:23,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.4) internal successors, (104), 7 states have internal predecessors, (104), 2 states have call successors, (32), 5 states have call predecessors, (32), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-10-14 03:00:23,350 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 1003 transitions. [2024-10-14 03:00:23,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-10-14 03:00:23,354 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:00:23,354 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:00:23,374 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-14 03:00:23,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 03:00:23,555 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:00:23,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:00:23,556 INFO L85 PathProgramCache]: Analyzing trace with hash 602327563, now seen corresponding path program 1 times [2024-10-14 03:00:23,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:00:23,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128202356] [2024-10-14 03:00:23,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:00:23,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:00:23,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:23,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 03:00:23,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:23,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 03:00:23,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:23,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 03:00:23,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:23,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 03:00:23,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:23,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 03:00:23,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:23,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 03:00:23,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:23,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-14 03:00:23,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:23,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 03:00:23,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:23,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 03:00:23,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:23,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 03:00:23,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:23,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-14 03:00:23,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:23,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-14 03:00:23,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:23,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-14 03:00:23,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:23,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-14 03:00:23,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:23,674 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-14 03:00:23,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:00:23,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128202356] [2024-10-14 03:00:23,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128202356] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:00:23,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:00:23,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:00:23,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068110767] [2024-10-14 03:00:23,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:00:23,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 03:00:23,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:00:23,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 03:00:23,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 03:00:23,676 INFO L87 Difference]: Start difference. First operand 597 states and 1003 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-14 03:00:24,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:00:24,541 INFO L93 Difference]: Finished difference Result 1477 states and 2542 transitions. [2024-10-14 03:00:24,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 03:00:24,542 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 123 [2024-10-14 03:00:24,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:00:24,549 INFO L225 Difference]: With dead ends: 1477 [2024-10-14 03:00:24,549 INFO L226 Difference]: Without dead ends: 940 [2024-10-14 03:00:24,552 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-14 03:00:24,553 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 655 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 812 mSolverCounterSat, 232 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 670 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 1044 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 232 IncrementalHoareTripleChecker+Valid, 812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-14 03:00:24,553 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [670 Valid, 584 Invalid, 1044 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [232 Valid, 812 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-14 03:00:24,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 940 states. [2024-10-14 03:00:24,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 940 to 889. [2024-10-14 03:00:24,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 889 states, 685 states have (on average 1.6394160583941606) internal successors, (1123), 692 states have internal predecessors, (1123), 182 states have call successors, (182), 17 states have call predecessors, (182), 21 states have return successors, (213), 181 states have call predecessors, (213), 181 states have call successors, (213) [2024-10-14 03:00:24,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 889 states to 889 states and 1518 transitions. [2024-10-14 03:00:24,601 INFO L78 Accepts]: Start accepts. Automaton has 889 states and 1518 transitions. Word has length 123 [2024-10-14 03:00:24,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:00:24,601 INFO L471 AbstractCegarLoop]: Abstraction has 889 states and 1518 transitions. [2024-10-14 03:00:24,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-14 03:00:24,602 INFO L276 IsEmpty]: Start isEmpty. Operand 889 states and 1518 transitions. [2024-10-14 03:00:24,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-10-14 03:00:24,607 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:00:24,607 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:00:24,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 03:00:24,607 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:00:24,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:00:24,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1204130439, now seen corresponding path program 1 times [2024-10-14 03:00:24,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:00:24,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589880373] [2024-10-14 03:00:24,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:00:24,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:00:24,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:24,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 03:00:24,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:24,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 03:00:24,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:24,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 03:00:24,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:24,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 03:00:24,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:24,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 03:00:24,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:24,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 03:00:24,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:24,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 03:00:24,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:24,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 03:00:24,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:24,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-14 03:00:24,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:24,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-14 03:00:24,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:24,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-14 03:00:24,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:24,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 03:00:24,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:24,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 03:00:24,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:24,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 03:00:24,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:24,737 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-14 03:00:24,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:00:24,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589880373] [2024-10-14 03:00:24,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589880373] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:00:24,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:00:24,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:00:24,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589285875] [2024-10-14 03:00:24,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:00:24,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 03:00:24,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:00:24,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 03:00:24,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 03:00:24,740 INFO L87 Difference]: Start difference. First operand 889 states and 1518 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-14 03:00:25,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:00:25,664 INFO L93 Difference]: Finished difference Result 2174 states and 3769 transitions. [2024-10-14 03:00:25,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 03:00:25,665 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 124 [2024-10-14 03:00:25,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:00:25,674 INFO L225 Difference]: With dead ends: 2174 [2024-10-14 03:00:25,675 INFO L226 Difference]: Without dead ends: 1395 [2024-10-14 03:00:25,679 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-14 03:00:25,679 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 653 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 821 mSolverCounterSat, 229 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 668 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 1050 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 229 IncrementalHoareTripleChecker+Valid, 821 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-14 03:00:25,680 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [668 Valid, 576 Invalid, 1050 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [229 Valid, 821 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-14 03:00:25,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1395 states. [2024-10-14 03:00:25,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1395 to 1344. [2024-10-14 03:00:25,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1344 states, 1045 states have (on average 1.6430622009569378) internal successors, (1717), 1052 states have internal predecessors, (1717), 277 states have call successors, (277), 17 states have call predecessors, (277), 21 states have return successors, (308), 276 states have call predecessors, (308), 276 states have call successors, (308) [2024-10-14 03:00:25,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1344 states to 1344 states and 2302 transitions. [2024-10-14 03:00:25,738 INFO L78 Accepts]: Start accepts. Automaton has 1344 states and 2302 transitions. Word has length 124 [2024-10-14 03:00:25,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:00:25,738 INFO L471 AbstractCegarLoop]: Abstraction has 1344 states and 2302 transitions. [2024-10-14 03:00:25,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-14 03:00:25,738 INFO L276 IsEmpty]: Start isEmpty. Operand 1344 states and 2302 transitions. [2024-10-14 03:00:25,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-10-14 03:00:25,747 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:00:25,747 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:00:25,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 03:00:25,748 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:00:25,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:00:25,748 INFO L85 PathProgramCache]: Analyzing trace with hash -890665875, now seen corresponding path program 1 times [2024-10-14 03:00:25,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:00:25,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756225046] [2024-10-14 03:00:25,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:00:25,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:00:25,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:25,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 03:00:25,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:25,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 03:00:25,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:25,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 03:00:25,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:25,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 03:00:25,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:25,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 03:00:25,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:25,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 03:00:25,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:25,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-14 03:00:25,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:25,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 03:00:25,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:25,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 03:00:25,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:25,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 03:00:25,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:25,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 03:00:25,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:25,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-14 03:00:25,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:25,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-14 03:00:25,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:25,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 03:00:25,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:25,852 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-14 03:00:25,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:00:25,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756225046] [2024-10-14 03:00:25,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756225046] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:00:25,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:00:25,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:00:25,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364408737] [2024-10-14 03:00:25,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:00:25,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 03:00:25,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:00:25,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 03:00:25,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 03:00:25,855 INFO L87 Difference]: Start difference. First operand 1344 states and 2302 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-14 03:00:26,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:00:26,891 INFO L93 Difference]: Finished difference Result 3192 states and 5581 transitions. [2024-10-14 03:00:26,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 03:00:26,892 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 125 [2024-10-14 03:00:26,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:00:26,905 INFO L225 Difference]: With dead ends: 3192 [2024-10-14 03:00:26,905 INFO L226 Difference]: Without dead ends: 2078 [2024-10-14 03:00:26,911 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-14 03:00:26,911 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 651 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 807 mSolverCounterSat, 226 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 666 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 1033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 226 IncrementalHoareTripleChecker+Valid, 807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-14 03:00:26,912 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [666 Valid, 571 Invalid, 1033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [226 Valid, 807 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-14 03:00:26,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2078 states. [2024-10-14 03:00:26,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2078 to 2027. [2024-10-14 03:00:26,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2027 states, 1605 states have (on average 1.6467289719626168) internal successors, (2643), 1612 states have internal predecessors, (2643), 400 states have call successors, (400), 17 states have call predecessors, (400), 21 states have return successors, (447), 399 states have call predecessors, (447), 399 states have call successors, (447) [2024-10-14 03:00:26,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2027 states to 2027 states and 3490 transitions. [2024-10-14 03:00:27,001 INFO L78 Accepts]: Start accepts. Automaton has 2027 states and 3490 transitions. Word has length 125 [2024-10-14 03:00:27,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:00:27,002 INFO L471 AbstractCegarLoop]: Abstraction has 2027 states and 3490 transitions. [2024-10-14 03:00:27,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-14 03:00:27,002 INFO L276 IsEmpty]: Start isEmpty. Operand 2027 states and 3490 transitions. [2024-10-14 03:00:27,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-10-14 03:00:27,012 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:00:27,012 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:00:27,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 03:00:27,012 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:00:27,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:00:27,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1219674216, now seen corresponding path program 1 times [2024-10-14 03:00:27,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:00:27,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558798939] [2024-10-14 03:00:27,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:00:27,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:00:27,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:27,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 03:00:27,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:27,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 03:00:27,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:27,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 03:00:27,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:27,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 03:00:27,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:27,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 03:00:27,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:27,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 03:00:27,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:27,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-14 03:00:27,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:27,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 03:00:27,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:27,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-14 03:00:27,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:27,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-14 03:00:27,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:27,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-14 03:00:27,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:27,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 03:00:27,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:27,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-14 03:00:27,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:27,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-14 03:00:27,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:27,129 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-14 03:00:27,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:00:27,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558798939] [2024-10-14 03:00:27,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558798939] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:00:27,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:00:27,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:00:27,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716197663] [2024-10-14 03:00:27,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:00:27,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 03:00:27,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:00:27,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 03:00:27,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 03:00:27,133 INFO L87 Difference]: Start difference. First operand 2027 states and 3490 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-14 03:00:28,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:00:28,028 INFO L93 Difference]: Finished difference Result 4762 states and 8386 transitions. [2024-10-14 03:00:28,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 03:00:28,029 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 126 [2024-10-14 03:00:28,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:00:28,051 INFO L225 Difference]: With dead ends: 4762 [2024-10-14 03:00:28,051 INFO L226 Difference]: Without dead ends: 3162 [2024-10-14 03:00:28,059 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-14 03:00:28,060 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 649 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 802 mSolverCounterSat, 226 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 664 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 1028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 226 IncrementalHoareTripleChecker+Valid, 802 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-14 03:00:28,060 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [664 Valid, 570 Invalid, 1028 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [226 Valid, 802 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-14 03:00:28,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3162 states. [2024-10-14 03:00:28,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3162 to 3111. [2024-10-14 03:00:28,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3111 states, 2510 states have (on average 1.649003984063745) internal successors, (4139), 2517 states have internal predecessors, (4139), 579 states have call successors, (579), 17 states have call predecessors, (579), 21 states have return successors, (652), 578 states have call predecessors, (652), 578 states have call successors, (652) [2024-10-14 03:00:28,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3111 states to 3111 states and 5370 transitions. [2024-10-14 03:00:28,212 INFO L78 Accepts]: Start accepts. Automaton has 3111 states and 5370 transitions. Word has length 126 [2024-10-14 03:00:28,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:00:28,212 INFO L471 AbstractCegarLoop]: Abstraction has 3111 states and 5370 transitions. [2024-10-14 03:00:28,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-14 03:00:28,213 INFO L276 IsEmpty]: Start isEmpty. Operand 3111 states and 5370 transitions. [2024-10-14 03:00:28,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-10-14 03:00:28,227 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:00:28,227 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:00:28,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-14 03:00:28,228 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:00:28,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:00:28,228 INFO L85 PathProgramCache]: Analyzing trace with hash -525216279, now seen corresponding path program 1 times [2024-10-14 03:00:28,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:00:28,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736758402] [2024-10-14 03:00:28,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:00:28,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:00:28,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:28,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 03:00:28,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:28,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 03:00:28,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:28,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 03:00:28,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:28,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 03:00:28,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:28,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 03:00:28,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:28,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 03:00:28,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:28,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 03:00:28,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:28,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-14 03:00:28,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:28,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-14 03:00:28,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:28,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-14 03:00:28,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:28,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-14 03:00:28,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:28,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 03:00:28,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:28,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 03:00:28,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:28,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-14 03:00:28,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:28,344 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-14 03:00:28,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:00:28,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736758402] [2024-10-14 03:00:28,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736758402] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:00:28,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:00:28,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:00:28,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567523227] [2024-10-14 03:00:28,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:00:28,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 03:00:28,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:00:28,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 03:00:28,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 03:00:28,348 INFO L87 Difference]: Start difference. First operand 3111 states and 5370 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-14 03:00:29,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:00:29,234 INFO L93 Difference]: Finished difference Result 7593 states and 13398 transitions. [2024-10-14 03:00:29,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 03:00:29,234 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 127 [2024-10-14 03:00:29,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:00:29,267 INFO L225 Difference]: With dead ends: 7593 [2024-10-14 03:00:29,267 INFO L226 Difference]: Without dead ends: 5132 [2024-10-14 03:00:29,279 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-14 03:00:29,280 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 647 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 823 mSolverCounterSat, 229 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 662 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 1052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 229 IncrementalHoareTripleChecker+Valid, 823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-14 03:00:29,280 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [662 Valid, 601 Invalid, 1052 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [229 Valid, 823 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-14 03:00:29,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5132 states. [2024-10-14 03:00:29,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5132 to 5081. [2024-10-14 03:00:29,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5081 states, 4104 states have (on average 1.6398635477582846) internal successors, (6730), 4111 states have internal predecessors, (6730), 955 states have call successors, (955), 17 states have call predecessors, (955), 21 states have return successors, (1072), 954 states have call predecessors, (1072), 954 states have call successors, (1072) [2024-10-14 03:00:29,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5081 states to 5081 states and 8757 transitions. [2024-10-14 03:00:29,582 INFO L78 Accepts]: Start accepts. Automaton has 5081 states and 8757 transitions. Word has length 127 [2024-10-14 03:00:29,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:00:29,582 INFO L471 AbstractCegarLoop]: Abstraction has 5081 states and 8757 transitions. [2024-10-14 03:00:29,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-14 03:00:29,583 INFO L276 IsEmpty]: Start isEmpty. Operand 5081 states and 8757 transitions. [2024-10-14 03:00:29,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-10-14 03:00:29,602 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:00:29,602 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:00:29,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-14 03:00:29,603 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:00:29,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:00:29,603 INFO L85 PathProgramCache]: Analyzing trace with hash 298052332, now seen corresponding path program 1 times [2024-10-14 03:00:29,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:00:29,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681913419] [2024-10-14 03:00:29,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:00:29,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:00:29,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:29,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 03:00:29,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:29,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 03:00:29,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:29,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 03:00:29,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:29,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 03:00:29,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:29,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 03:00:29,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:29,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 03:00:29,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:29,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-14 03:00:29,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:29,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-14 03:00:29,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:29,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 03:00:29,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:29,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 03:00:29,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:29,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 03:00:29,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:29,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 03:00:29,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:29,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-14 03:00:29,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:29,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-14 03:00:29,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:29,705 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-14 03:00:29,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:00:29,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681913419] [2024-10-14 03:00:29,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681913419] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:00:29,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:00:29,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:00:29,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461454764] [2024-10-14 03:00:29,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:00:29,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 03:00:29,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:00:29,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 03:00:29,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 03:00:29,707 INFO L87 Difference]: Start difference. First operand 5081 states and 8757 transitions. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-14 03:00:30,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:00:30,766 INFO L93 Difference]: Finished difference Result 12574 states and 22146 transitions. [2024-10-14 03:00:30,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 03:00:30,767 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 128 [2024-10-14 03:00:30,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:00:30,829 INFO L225 Difference]: With dead ends: 12574 [2024-10-14 03:00:30,833 INFO L226 Difference]: Without dead ends: 8509 [2024-10-14 03:00:30,851 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-14 03:00:30,852 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 645 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 808 mSolverCounterSat, 232 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 660 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 1040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 232 IncrementalHoareTripleChecker+Valid, 808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-14 03:00:30,852 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [660 Valid, 576 Invalid, 1040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [232 Valid, 808 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-14 03:00:30,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8509 states. [2024-10-14 03:00:31,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8509 to 8458. [2024-10-14 03:00:31,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8458 states, 6875 states have (on average 1.6368) internal successors, (11253), 6882 states have internal predecessors, (11253), 1561 states have call successors, (1561), 17 states have call predecessors, (1561), 21 states have return successors, (1756), 1560 states have call predecessors, (1756), 1560 states have call successors, (1756) [2024-10-14 03:00:31,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8458 states to 8458 states and 14570 transitions. [2024-10-14 03:00:31,262 INFO L78 Accepts]: Start accepts. Automaton has 8458 states and 14570 transitions. Word has length 128 [2024-10-14 03:00:31,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:00:31,263 INFO L471 AbstractCegarLoop]: Abstraction has 8458 states and 14570 transitions. [2024-10-14 03:00:31,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-14 03:00:31,263 INFO L276 IsEmpty]: Start isEmpty. Operand 8458 states and 14570 transitions. [2024-10-14 03:00:31,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-10-14 03:00:31,292 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:00:31,292 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:00:31,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-14 03:00:31,292 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:00:31,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:00:31,293 INFO L85 PathProgramCache]: Analyzing trace with hash -1596267989, now seen corresponding path program 1 times [2024-10-14 03:00:31,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:00:31,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178756704] [2024-10-14 03:00:31,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:00:31,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:00:31,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:31,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 03:00:31,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:31,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 03:00:31,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:31,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 03:00:31,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:31,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 03:00:31,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:31,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 03:00:31,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:31,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 03:00:31,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:31,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-14 03:00:31,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:31,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 03:00:31,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:31,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 03:00:31,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:31,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-14 03:00:31,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:31,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 03:00:31,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:31,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-14 03:00:31,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:31,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-14 03:00:31,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:31,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-14 03:00:31,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:31,404 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-14 03:00:31,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:00:31,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178756704] [2024-10-14 03:00:31,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178756704] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:00:31,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:00:31,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:00:31,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648629699] [2024-10-14 03:00:31,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:00:31,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 03:00:31,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:00:31,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 03:00:31,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 03:00:31,406 INFO L87 Difference]: Start difference. First operand 8458 states and 14570 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-14 03:00:32,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:00:32,656 INFO L93 Difference]: Finished difference Result 21926 states and 38545 transitions. [2024-10-14 03:00:32,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 03:00:32,657 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 129 [2024-10-14 03:00:32,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:00:32,730 INFO L225 Difference]: With dead ends: 21926 [2024-10-14 03:00:32,731 INFO L226 Difference]: Without dead ends: 14893 [2024-10-14 03:00:32,766 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-14 03:00:32,767 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 643 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 829 mSolverCounterSat, 229 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 658 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 1058 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 229 IncrementalHoareTripleChecker+Valid, 829 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-14 03:00:32,767 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [658 Valid, 593 Invalid, 1058 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [229 Valid, 829 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-14 03:00:32,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14893 states. [2024-10-14 03:00:33,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14893 to 14842. [2024-10-14 03:00:33,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14842 states, 12056 states have (on average 1.6265759787657599) internal successors, (19610), 12063 states have internal predecessors, (19610), 2764 states have call successors, (2764), 17 states have call predecessors, (2764), 21 states have return successors, (3103), 2763 states have call predecessors, (3103), 2763 states have call successors, (3103) [2024-10-14 03:00:33,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14842 states to 14842 states and 25477 transitions. [2024-10-14 03:00:33,555 INFO L78 Accepts]: Start accepts. Automaton has 14842 states and 25477 transitions. Word has length 129 [2024-10-14 03:00:33,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:00:33,555 INFO L471 AbstractCegarLoop]: Abstraction has 14842 states and 25477 transitions. [2024-10-14 03:00:33,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-14 03:00:33,557 INFO L276 IsEmpty]: Start isEmpty. Operand 14842 states and 25477 transitions. [2024-10-14 03:00:33,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-10-14 03:00:33,607 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:00:33,607 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:00:33,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-14 03:00:33,608 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:00:33,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:00:33,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1907457133, now seen corresponding path program 1 times [2024-10-14 03:00:33,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:00:33,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944792250] [2024-10-14 03:00:33,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:00:33,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:00:33,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:33,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 03:00:33,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:33,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 03:00:33,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:33,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 03:00:33,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:33,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 03:00:33,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:33,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 03:00:33,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:33,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 03:00:33,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:33,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 03:00:33,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:33,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 03:00:33,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:33,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-14 03:00:33,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:33,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-14 03:00:33,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:33,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-14 03:00:33,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:33,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 03:00:33,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:33,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 03:00:33,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:33,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-14 03:00:33,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:33,748 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-14 03:00:33,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:00:33,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944792250] [2024-10-14 03:00:33,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944792250] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:00:33,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:00:33,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:00:33,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684201255] [2024-10-14 03:00:33,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:00:33,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 03:00:33,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:00:33,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 03:00:33,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 03:00:33,751 INFO L87 Difference]: Start difference. First operand 14842 states and 25477 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-14 03:00:35,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:00:35,117 INFO L93 Difference]: Finished difference Result 39285 states and 68931 transitions. [2024-10-14 03:00:35,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 03:00:35,117 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 130 [2024-10-14 03:00:35,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:00:35,242 INFO L225 Difference]: With dead ends: 39285 [2024-10-14 03:00:35,242 INFO L226 Difference]: Without dead ends: 26460 [2024-10-14 03:00:35,293 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-14 03:00:35,293 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 641 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 806 mSolverCounterSat, 232 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 656 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 1038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 232 IncrementalHoareTripleChecker+Valid, 806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-14 03:00:35,294 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [656 Valid, 571 Invalid, 1038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [232 Valid, 806 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-14 03:00:35,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26460 states. [2024-10-14 03:00:36,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26460 to 26409. [2024-10-14 03:00:36,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26409 states, 21584 states have (on average 1.6222664936990363) internal successors, (35015), 21591 states have internal predecessors, (35015), 4803 states have call successors, (4803), 17 states have call predecessors, (4803), 21 states have return successors, (5416), 4802 states have call predecessors, (5416), 4802 states have call successors, (5416) [2024-10-14 03:00:36,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26409 states to 26409 states and 45234 transitions. [2024-10-14 03:00:36,427 INFO L78 Accepts]: Start accepts. Automaton has 26409 states and 45234 transitions. Word has length 130 [2024-10-14 03:00:36,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:00:36,427 INFO L471 AbstractCegarLoop]: Abstraction has 26409 states and 45234 transitions. [2024-10-14 03:00:36,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-14 03:00:36,428 INFO L276 IsEmpty]: Start isEmpty. Operand 26409 states and 45234 transitions. [2024-10-14 03:00:36,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-14 03:00:36,468 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:00:36,468 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:00:36,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-14 03:00:36,469 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:00:36,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:00:36,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1185031885, now seen corresponding path program 1 times [2024-10-14 03:00:36,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:00:36,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042990430] [2024-10-14 03:00:36,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:00:36,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:00:36,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:36,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 03:00:36,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:36,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 03:00:36,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:36,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 03:00:36,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:36,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 03:00:36,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:36,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 03:00:36,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:36,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 03:00:36,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:36,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-14 03:00:36,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:36,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 03:00:36,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:36,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 03:00:36,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:36,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 03:00:36,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:36,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 03:00:36,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:36,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-14 03:00:36,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:36,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 03:00:36,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:36,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-14 03:00:36,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:36,562 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-14 03:00:36,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:00:36,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042990430] [2024-10-14 03:00:36,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042990430] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:00:36,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:00:36,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:00:36,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467300094] [2024-10-14 03:00:36,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:00:36,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 03:00:36,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:00:36,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 03:00:36,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 03:00:36,564 INFO L87 Difference]: Start difference. First operand 26409 states and 45234 transitions. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-14 03:00:38,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:00:38,693 INFO L93 Difference]: Finished difference Result 71897 states and 125355 transitions. [2024-10-14 03:00:38,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 03:00:38,694 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 131 [2024-10-14 03:00:38,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:00:38,924 INFO L225 Difference]: With dead ends: 71897 [2024-10-14 03:00:38,925 INFO L226 Difference]: Without dead ends: 48220 [2024-10-14 03:00:39,006 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-14 03:00:39,007 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 639 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 825 mSolverCounterSat, 229 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 654 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 1054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 229 IncrementalHoareTripleChecker+Valid, 825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-14 03:00:39,008 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [654 Valid, 581 Invalid, 1054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [229 Valid, 825 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-14 03:00:39,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48220 states. [2024-10-14 03:00:40,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48220 to 48169. [2024-10-14 03:00:41,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48169 states, 39629 states have (on average 1.6166696106386738) internal successors, (64067), 39636 states have internal predecessors, (64067), 8518 states have call successors, (8518), 17 states have call predecessors, (8518), 21 states have return successors, (9663), 8517 states have call predecessors, (9663), 8517 states have call successors, (9663) [2024-10-14 03:00:41,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48169 states to 48169 states and 82248 transitions. [2024-10-14 03:00:41,295 INFO L78 Accepts]: Start accepts. Automaton has 48169 states and 82248 transitions. Word has length 131 [2024-10-14 03:00:41,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:00:41,296 INFO L471 AbstractCegarLoop]: Abstraction has 48169 states and 82248 transitions. [2024-10-14 03:00:41,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-14 03:00:41,296 INFO L276 IsEmpty]: Start isEmpty. Operand 48169 states and 82248 transitions. [2024-10-14 03:00:41,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-10-14 03:00:41,665 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:00:41,665 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:00:41,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-14 03:00:41,666 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:00:41,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:00:41,666 INFO L85 PathProgramCache]: Analyzing trace with hash 817092301, now seen corresponding path program 1 times [2024-10-14 03:00:41,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:00:41,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883498080] [2024-10-14 03:00:41,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:00:41,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:00:41,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:41,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 03:00:41,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:41,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 03:00:41,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:41,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 03:00:41,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:41,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 03:00:41,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:41,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 03:00:41,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:41,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 03:00:41,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:41,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-14 03:00:41,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:41,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 03:00:41,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:41,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-14 03:00:41,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:41,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-14 03:00:41,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:41,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-14 03:00:41,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:41,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-14 03:00:41,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:41,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-14 03:00:41,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:41,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-14 03:00:41,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:41,810 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-14 03:00:41,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:00:41,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883498080] [2024-10-14 03:00:41,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883498080] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:00:41,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:00:41,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:00:41,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139878343] [2024-10-14 03:00:41,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:00:41,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 03:00:41,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:00:41,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 03:00:41,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 03:00:41,812 INFO L87 Difference]: Start difference. First operand 48169 states and 82248 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-14 03:00:44,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:00:44,229 INFO L93 Difference]: Finished difference Result 89616 states and 156719 transitions. [2024-10-14 03:00:44,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 03:00:44,229 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 132 [2024-10-14 03:00:44,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:00:44,652 INFO L225 Difference]: With dead ends: 89616 [2024-10-14 03:00:44,653 INFO L226 Difference]: Without dead ends: 89508 [2024-10-14 03:00:44,706 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-14 03:00:44,707 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 634 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 821 mSolverCounterSat, 225 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 648 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 1046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 225 IncrementalHoareTripleChecker+Valid, 821 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-14 03:00:44,708 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [648 Valid, 583 Invalid, 1046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [225 Valid, 821 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-14 03:00:44,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89508 states. [2024-10-14 03:00:47,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89508 to 89457. [2024-10-14 03:00:47,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89457 states, 74118 states have (on average 1.609555033864918) internal successors, (119297), 74125 states have internal predecessors, (119297), 15317 states have call successors, (15317), 17 states have call predecessors, (15317), 21 states have return successors, (17508), 15316 states have call predecessors, (17508), 15316 states have call successors, (17508) [2024-10-14 03:00:48,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89457 states to 89457 states and 152122 transitions. [2024-10-14 03:00:48,753 INFO L78 Accepts]: Start accepts. Automaton has 89457 states and 152122 transitions. Word has length 132 [2024-10-14 03:00:48,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:00:48,758 INFO L471 AbstractCegarLoop]: Abstraction has 89457 states and 152122 transitions. [2024-10-14 03:00:48,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-14 03:00:48,759 INFO L276 IsEmpty]: Start isEmpty. Operand 89457 states and 152122 transitions. [2024-10-14 03:00:48,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-10-14 03:00:48,908 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:00:48,908 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:00:48,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-14 03:00:48,909 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:00:48,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:00:48,909 INFO L85 PathProgramCache]: Analyzing trace with hash 88983756, now seen corresponding path program 1 times [2024-10-14 03:00:48,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:00:48,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021728829] [2024-10-14 03:00:48,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:00:48,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:00:48,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:49,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 03:00:49,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:49,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 03:00:49,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:49,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 03:00:49,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:49,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 03:00:49,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:49,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 03:00:49,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:49,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 03:00:49,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:49,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 03:00:49,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:49,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-14 03:00:49,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:49,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-14 03:00:49,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:49,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-14 03:00:49,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:49,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 03:00:49,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:49,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 03:00:49,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:49,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-14 03:00:49,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:49,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-14 03:00:49,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:49,317 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-10-14 03:00:49,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:00:49,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021728829] [2024-10-14 03:00:49,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021728829] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 03:00:49,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [338791229] [2024-10-14 03:00:49,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:00:49,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 03:00:49,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 03:00:49,319 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 03:00:49,324 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-14 03:00:49,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:00:49,657 INFO L255 TraceCheckSpWp]: Trace formula consists of 1041 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-14 03:00:49,662 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 03:00:50,030 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-14 03:00:50,030 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 03:00:50,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [338791229] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:00:50,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 03:00:50,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [14] total 23 [2024-10-14 03:00:50,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670286236] [2024-10-14 03:00:50,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:00:50,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-14 03:00:50,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:00:50,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-14 03:00:50,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=438, Unknown=0, NotChecked=0, Total=506 [2024-10-14 03:00:50,033 INFO L87 Difference]: Start difference. First operand 89457 states and 152122 transitions. Second operand has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 8 states have internal predecessors, (97), 5 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2024-10-14 03:00:54,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:00:54,342 INFO L93 Difference]: Finished difference Result 178254 states and 308627 transitions. [2024-10-14 03:00:54,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-14 03:00:54,342 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 8 states have internal predecessors, (97), 5 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) Word has length 133 [2024-10-14 03:00:54,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:00:55,690 INFO L225 Difference]: With dead ends: 178254 [2024-10-14 03:00:55,690 INFO L226 Difference]: Without dead ends: 178153 [2024-10-14 03:00:55,755 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=129, Invalid=801, Unknown=0, NotChecked=0, Total=930 [2024-10-14 03:00:55,756 INFO L432 NwaCegarLoop]: 457 mSDtfsCounter, 596 mSDsluCounter, 2877 mSDsCounter, 0 mSdLazyCounter, 810 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 598 SdHoareTripleChecker+Valid, 3334 SdHoareTripleChecker+Invalid, 884 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 03:00:55,757 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [598 Valid, 3334 Invalid, 884 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 810 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 03:00:55,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178153 states. [2024-10-14 03:01:01,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178153 to 178128. [2024-10-14 03:01:02,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178128 states, 147657 states have (on average 1.6105636712109823) internal successors, (237811), 147559 states have internal predecessors, (237811), 30421 states have call successors, (30421), 44 states have call predecessors, (30421), 49 states have return successors, (38070), 30530 states have call predecessors, (38070), 30418 states have call successors, (38070) [2024-10-14 03:01:03,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178128 states to 178128 states and 306302 transitions. [2024-10-14 03:01:03,429 INFO L78 Accepts]: Start accepts. Automaton has 178128 states and 306302 transitions. Word has length 133 [2024-10-14 03:01:03,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:01:03,430 INFO L471 AbstractCegarLoop]: Abstraction has 178128 states and 306302 transitions. [2024-10-14 03:01:03,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 8 states have internal predecessors, (97), 5 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2024-10-14 03:01:03,430 INFO L276 IsEmpty]: Start isEmpty. Operand 178128 states and 306302 transitions. [2024-10-14 03:01:03,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-10-14 03:01:03,584 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:01:03,584 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:01:03,605 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-10-14 03:01:03,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 03:01:03,786 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:01:03,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:01:03,786 INFO L85 PathProgramCache]: Analyzing trace with hash -406446873, now seen corresponding path program 1 times [2024-10-14 03:01:03,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:01:03,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614081658] [2024-10-14 03:01:03,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:01:03,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:01:03,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:01:03,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 03:01:03,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:01:03,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 03:01:03,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:01:03,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 03:01:03,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:01:03,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 03:01:03,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:01:03,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 03:01:03,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:01:03,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 03:01:03,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:01:04,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 03:01:04,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:01:04,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-14 03:01:04,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:01:04,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 03:01:04,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:01:04,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 03:01:04,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:01:04,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 03:01:04,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:01:04,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-14 03:01:04,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:01:04,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-14 03:01:04,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:01:04,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-14 03:01:04,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:01:04,029 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-14 03:01:04,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:01:04,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614081658] [2024-10-14 03:01:04,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614081658] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:01:04,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:01:04,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-14 03:01:04,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476030309] [2024-10-14 03:01:04,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:01:04,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-14 03:01:04,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:01:04,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-14 03:01:04,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-10-14 03:01:04,033 INFO L87 Difference]: Start difference. First operand 178128 states and 306302 transitions. Second operand has 11 states, 11 states have (on average 8.0) internal successors, (88), 6 states have internal predecessors, (88), 4 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-14 03:01:10,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:01:10,049 INFO L93 Difference]: Finished difference Result 178782 states and 313779 transitions. [2024-10-14 03:01:10,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 03:01:10,050 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.0) internal successors, (88), 6 states have internal predecessors, (88), 4 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 134 [2024-10-14 03:01:10,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:01:11,352 INFO L225 Difference]: With dead ends: 178782 [2024-10-14 03:01:11,352 INFO L226 Difference]: Without dead ends: 178388 [2024-10-14 03:01:11,439 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=125, Invalid=337, Unknown=0, NotChecked=0, Total=462 [2024-10-14 03:01:11,440 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 1074 mSDsluCounter, 876 mSDsCounter, 0 mSdLazyCounter, 2134 mSolverCounterSat, 367 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1089 SdHoareTripleChecker+Valid, 1021 SdHoareTripleChecker+Invalid, 2501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 367 IncrementalHoareTripleChecker+Valid, 2134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-14 03:01:11,440 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1089 Valid, 1021 Invalid, 2501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [367 Valid, 2134 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-14 03:01:11,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178388 states.