./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec8_product12.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/email_spec8_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 cd09b7e02dd7459ada96201e9b5a915c0f0209c05135bf5a5174f874492a34ab --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 01:59:35,011 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 01:59:35,120 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 01:59:35,127 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 01:59:35,128 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 01:59:35,156 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 01:59:35,157 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 01:59:35,157 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 01:59:35,158 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 01:59:35,158 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 01:59:35,159 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 01:59:35,159 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 01:59:35,162 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 01:59:35,163 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 01:59:35,163 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 01:59:35,165 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 01:59:35,165 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 01:59:35,166 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 01:59:35,166 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 01:59:35,167 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 01:59:35,170 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 01:59:35,171 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 01:59:35,171 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 01:59:35,171 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 01:59:35,171 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 01:59:35,172 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 01:59:35,172 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 01:59:35,172 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 01:59:35,173 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 01:59:35,173 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 01:59:35,173 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 01:59:35,173 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 01:59:35,174 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 01:59:35,176 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 01:59:35,177 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 01:59:35,177 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 01:59:35,177 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 01:59:35,178 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 01:59:35,178 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 01:59:35,179 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 01:59:35,180 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 01:59:35,180 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 01:59:35,180 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cd09b7e02dd7459ada96201e9b5a915c0f0209c05135bf5a5174f874492a34ab [2024-11-22 01:59:35,463 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 01:59:35,488 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 01:59:35,492 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 01:59:35,493 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 01:59:35,494 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 01:59:35,495 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec8_product12.cil.c [2024-11-22 01:59:37,016 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 01:59:37,375 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 01:59:37,376 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec8_product12.cil.c [2024-11-22 01:59:37,397 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e85d57a94/c00c77abf22f4a9fa1b9c8d593e82189/FLAG28a48a919 [2024-11-22 01:59:37,411 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e85d57a94/c00c77abf22f4a9fa1b9c8d593e82189 [2024-11-22 01:59:37,413 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 01:59:37,414 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 01:59:37,416 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 01:59:37,416 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 01:59:37,423 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 01:59:37,424 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:59:37" (1/1) ... [2024-11-22 01:59:37,425 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@529a9e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:59:37, skipping insertion in model container [2024-11-22 01:59:37,425 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:59:37" (1/1) ... [2024-11-22 01:59:37,506 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 01:59:37,910 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec8_product12.cil.c[16969,16982] [2024-11-22 01:59:38,124 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 01:59:38,139 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 01:59:38,149 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [48] [2024-11-22 01:59:38,150 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [414] [2024-11-22 01:59:38,150 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [717] [2024-11-22 01:59:38,151 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [752] [2024-11-22 01:59:38,151 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [761] [2024-11-22 01:59:38,151 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [974] [2024-11-22 01:59:38,151 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptAutoResponder_spec.i","") [1386] [2024-11-22 01:59:38,151 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1428] [2024-11-22 01:59:38,151 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1533] [2024-11-22 01:59:38,151 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1765] [2024-11-22 01:59:38,152 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2834] [2024-11-22 01:59:38,211 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec8_product12.cil.c[16969,16982] [2024-11-22 01:59:38,287 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 01:59:38,330 INFO L204 MainTranslator]: Completed translation [2024-11-22 01:59:38,331 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:59:38 WrapperNode [2024-11-22 01:59:38,331 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 01:59:38,332 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 01:59:38,332 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 01:59:38,332 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 01:59:38,339 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:59:38" (1/1) ... [2024-11-22 01:59:38,374 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:59:38" (1/1) ... [2024-11-22 01:59:38,431 INFO L138 Inliner]: procedures = 123, calls = 177, calls flagged for inlining = 51, calls inlined = 41, statements flattened = 840 [2024-11-22 01:59:38,432 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 01:59:38,433 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 01:59:38,433 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 01:59:38,433 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 01:59:38,453 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:59:38" (1/1) ... [2024-11-22 01:59:38,453 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:59:38" (1/1) ... [2024-11-22 01:59:38,458 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:59:38" (1/1) ... [2024-11-22 01:59:38,487 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4]. 29 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0]. [2024-11-22 01:59:38,488 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:59:38" (1/1) ... [2024-11-22 01:59:38,488 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:59:38" (1/1) ... [2024-11-22 01:59:38,500 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:59:38" (1/1) ... [2024-11-22 01:59:38,510 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:59:38" (1/1) ... [2024-11-22 01:59:38,513 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:59:38" (1/1) ... [2024-11-22 01:59:38,517 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:59:38" (1/1) ... [2024-11-22 01:59:38,522 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 01:59:38,523 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 01:59:38,524 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 01:59:38,524 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 01:59:38,525 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:59:38" (1/1) ... [2024-11-22 01:59:38,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 01:59:38,547 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:59:38,568 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 01:59:38,574 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 01:59:38,621 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-11-22 01:59:38,621 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-11-22 01:59:38,621 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-11-22 01:59:38,622 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-11-22 01:59:38,622 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-22 01:59:38,622 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-22 01:59:38,622 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-22 01:59:38,623 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-22 01:59:38,623 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-22 01:59:38,623 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-22 01:59:38,623 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-11-22 01:59:38,623 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-11-22 01:59:38,623 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-22 01:59:38,624 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-22 01:59:38,624 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-22 01:59:38,624 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-22 01:59:38,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 01:59:38,624 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-22 01:59:38,624 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-22 01:59:38,624 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-22 01:59:38,624 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-22 01:59:38,624 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-22 01:59:38,624 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-22 01:59:38,624 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-22 01:59:38,625 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-22 01:59:38,625 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-11-22 01:59:38,625 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-11-22 01:59:38,625 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-22 01:59:38,625 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-22 01:59:38,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 01:59:38,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-22 01:59:38,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-22 01:59:38,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-22 01:59:38,625 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-22 01:59:38,625 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-22 01:59:38,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 01:59:38,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 01:59:38,850 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 01:59:38,853 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 01:59:39,707 INFO L? ?]: Removed 339 outVars from TransFormulas that were not future-live. [2024-11-22 01:59:39,708 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 01:59:39,733 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 01:59:39,734 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 01:59:39,734 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:59:39 BoogieIcfgContainer [2024-11-22 01:59:39,734 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 01:59:39,740 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 01:59:39,741 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 01:59:39,744 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 01:59:39,745 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:59:37" (1/3) ... [2024-11-22 01:59:39,745 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c988514 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:59:39, skipping insertion in model container [2024-11-22 01:59:39,746 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:59:38" (2/3) ... [2024-11-22 01:59:39,746 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c988514 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:59:39, skipping insertion in model container [2024-11-22 01:59:39,746 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:59:39" (3/3) ... [2024-11-22 01:59:39,748 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec8_product12.cil.c [2024-11-22 01:59:39,763 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 01:59:39,764 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 01:59:39,856 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 01:59:39,865 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;@2e06b75, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 01:59:39,865 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 01:59:39,873 INFO L276 IsEmpty]: Start isEmpty. Operand has 262 states, 206 states have (on average 1.5533980582524272) internal successors, (320), 210 states have internal predecessors, (320), 39 states have call successors, (39), 15 states have call predecessors, (39), 15 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-22 01:59:39,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-22 01:59:39,896 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:59:39,898 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:59:39,899 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:59:39,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:59:39,904 INFO L85 PathProgramCache]: Analyzing trace with hash 2039353953, now seen corresponding path program 1 times [2024-11-22 01:59:39,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:59:39,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060307077] [2024-11-22 01:59:39,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:59:39,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:59:40,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:59:40,622 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-22 01:59:40,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:59:40,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060307077] [2024-11-22 01:59:40,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060307077] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:59:40,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1744905947] [2024-11-22 01:59:40,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:59:40,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:59:40,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:59:40,629 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:59:40,632 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 01:59:40,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:59:40,933 INFO L255 TraceCheckSpWp]: Trace formula consists of 878 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-22 01:59:40,942 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:59:40,968 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-22 01:59:40,968 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:59:40,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1744905947] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:59:40,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:59:40,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 5 [2024-11-22 01:59:40,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945252115] [2024-11-22 01:59:40,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:59:41,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 01:59:41,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:59:41,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 01:59:41,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:59:41,028 INFO L87 Difference]: Start difference. First operand has 262 states, 206 states have (on average 1.5533980582524272) internal successors, (320), 210 states have internal predecessors, (320), 39 states have call successors, (39), 15 states have call predecessors, (39), 15 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) Second operand has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 01:59:41,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:59:41,072 INFO L93 Difference]: Finished difference Result 375 states and 558 transitions. [2024-11-22 01:59:41,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 01:59:41,078 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 86 [2024-11-22 01:59:41,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:59:41,092 INFO L225 Difference]: With dead ends: 375 [2024-11-22 01:59:41,093 INFO L226 Difference]: Without dead ends: 255 [2024-11-22 01:59:41,097 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:59:41,099 INFO L432 NwaCegarLoop]: 394 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:59:41,100 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:59:41,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2024-11-22 01:59:41,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 255. [2024-11-22 01:59:41,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 200 states have (on average 1.545) internal successors, (309), 203 states have internal predecessors, (309), 39 states have call successors, (39), 15 states have call predecessors, (39), 15 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-22 01:59:41,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 386 transitions. [2024-11-22 01:59:41,163 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 386 transitions. Word has length 86 [2024-11-22 01:59:41,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:59:41,165 INFO L471 AbstractCegarLoop]: Abstraction has 255 states and 386 transitions. [2024-11-22 01:59:41,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 01:59:41,165 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 386 transitions. [2024-11-22 01:59:41,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-22 01:59:41,170 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:59:41,170 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:59:41,179 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 01:59:41,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-22 01:59:41,372 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:59:41,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:59:41,373 INFO L85 PathProgramCache]: Analyzing trace with hash 71453907, now seen corresponding path program 1 times [2024-11-22 01:59:41,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:59:41,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478763512] [2024-11-22 01:59:41,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:59:41,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:59:41,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:59:41,587 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-22 01:59:41,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:59:41,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478763512] [2024-11-22 01:59:41,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478763512] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:59:41,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [466841805] [2024-11-22 01:59:41,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:59:41,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:59:41,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:59:41,594 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:59:41,596 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 01:59:41,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:59:41,861 INFO L255 TraceCheckSpWp]: Trace formula consists of 879 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-22 01:59:41,864 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:59:41,902 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-22 01:59:41,906 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:59:41,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [466841805] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:59:41,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:59:41,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-22 01:59:41,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76871796] [2024-11-22 01:59:41,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:59:41,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:59:41,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:59:41,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:59:41,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:59:41,909 INFO L87 Difference]: Start difference. First operand 255 states and 386 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 01:59:41,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:59:41,959 INFO L93 Difference]: Finished difference Result 365 states and 539 transitions. [2024-11-22 01:59:41,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:59:41,960 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 87 [2024-11-22 01:59:41,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:59:41,963 INFO L225 Difference]: With dead ends: 365 [2024-11-22 01:59:41,963 INFO L226 Difference]: Without dead ends: 258 [2024-11-22 01:59:41,964 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:59:41,965 INFO L432 NwaCegarLoop]: 384 mSDtfsCounter, 1 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 766 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:59:41,966 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 766 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:59:41,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2024-11-22 01:59:41,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 257. [2024-11-22 01:59:41,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 202 states have (on average 1.5396039603960396) internal successors, (311), 205 states have internal predecessors, (311), 39 states have call successors, (39), 15 states have call predecessors, (39), 15 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-22 01:59:41,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 388 transitions. [2024-11-22 01:59:41,996 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 388 transitions. Word has length 87 [2024-11-22 01:59:41,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:59:41,996 INFO L471 AbstractCegarLoop]: Abstraction has 257 states and 388 transitions. [2024-11-22 01:59:41,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 01:59:41,997 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 388 transitions. [2024-11-22 01:59:41,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-22 01:59:42,000 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:59:42,000 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:59:42,010 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-22 01:59:42,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-22 01:59:42,201 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:59:42,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:59:42,202 INFO L85 PathProgramCache]: Analyzing trace with hash -153867190, now seen corresponding path program 1 times [2024-11-22 01:59:42,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:59:42,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718334406] [2024-11-22 01:59:42,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:59:42,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:59:42,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:59:42,434 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-22 01:59:42,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:59:42,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718334406] [2024-11-22 01:59:42,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718334406] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:59:42,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [897187380] [2024-11-22 01:59:42,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:59:42,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:59:42,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:59:42,440 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:59:42,442 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 01:59:42,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:59:42,687 INFO L255 TraceCheckSpWp]: Trace formula consists of 891 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 01:59:42,694 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:59:42,717 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-22 01:59:42,717 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:59:42,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [897187380] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:59:42,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:59:42,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-22 01:59:42,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757667499] [2024-11-22 01:59:42,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:59:42,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:59:42,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:59:42,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:59:42,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:59:42,723 INFO L87 Difference]: Start difference. First operand 257 states and 388 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 01:59:42,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:59:42,764 INFO L93 Difference]: Finished difference Result 539 states and 827 transitions. [2024-11-22 01:59:42,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:59:42,765 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 93 [2024-11-22 01:59:42,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:59:42,769 INFO L225 Difference]: With dead ends: 539 [2024-11-22 01:59:42,769 INFO L226 Difference]: Without dead ends: 309 [2024-11-22 01:59:42,771 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:59:42,772 INFO L432 NwaCegarLoop]: 401 mSDtfsCounter, 99 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 741 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:59:42,772 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 741 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:59:42,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2024-11-22 01:59:42,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 301. [2024-11-22 01:59:42,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 235 states have (on average 1.553191489361702) internal successors, (365), 238 states have internal predecessors, (365), 50 states have call successors, (50), 15 states have call predecessors, (50), 15 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2024-11-22 01:59:42,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 464 transitions. [2024-11-22 01:59:42,793 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 464 transitions. Word has length 93 [2024-11-22 01:59:42,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:59:42,793 INFO L471 AbstractCegarLoop]: Abstraction has 301 states and 464 transitions. [2024-11-22 01:59:42,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 01:59:42,794 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 464 transitions. [2024-11-22 01:59:42,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-22 01:59:42,797 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:59:42,797 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:59:42,808 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-22 01:59:42,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:59:42,998 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:59:42,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:59:42,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1701782700, now seen corresponding path program 1 times [2024-11-22 01:59:42,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:59:42,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592894374] [2024-11-22 01:59:42,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:59:42,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:59:43,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:59:43,188 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-22 01:59:43,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:59:43,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592894374] [2024-11-22 01:59:43,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592894374] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:59:43,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1922575811] [2024-11-22 01:59:43,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:59:43,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:59:43,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:59:43,192 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:59:43,194 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 01:59:43,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:59:43,435 INFO L255 TraceCheckSpWp]: Trace formula consists of 896 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-22 01:59:43,469 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:59:43,530 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-22 01:59:43,531 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:59:43,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1922575811] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:59:43,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:59:43,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-22 01:59:43,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146883941] [2024-11-22 01:59:43,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:59:43,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 01:59:43,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:59:43,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 01:59:43,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-22 01:59:43,535 INFO L87 Difference]: Start difference. First operand 301 states and 464 transitions. Second operand has 5 states, 4 states have (on average 16.25) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-22 01:59:43,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:59:43,599 INFO L93 Difference]: Finished difference Result 593 states and 918 transitions. [2024-11-22 01:59:43,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:59:43,600 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.25) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 94 [2024-11-22 01:59:43,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:59:43,604 INFO L225 Difference]: With dead ends: 593 [2024-11-22 01:59:43,605 INFO L226 Difference]: Without dead ends: 303 [2024-11-22 01:59:43,606 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-22 01:59:43,607 INFO L432 NwaCegarLoop]: 378 mSDtfsCounter, 2 mSDsluCounter, 1123 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1501 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:59:43,607 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1501 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:59:43,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2024-11-22 01:59:43,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 303. [2024-11-22 01:59:43,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 236 states have (on average 1.5508474576271187) internal successors, (366), 240 states have internal predecessors, (366), 50 states have call successors, (50), 15 states have call predecessors, (50), 16 states have return successors, (51), 49 states have call predecessors, (51), 49 states have call successors, (51) [2024-11-22 01:59:43,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 467 transitions. [2024-11-22 01:59:43,636 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 467 transitions. Word has length 94 [2024-11-22 01:59:43,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:59:43,637 INFO L471 AbstractCegarLoop]: Abstraction has 303 states and 467 transitions. [2024-11-22 01:59:43,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.25) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-22 01:59:43,638 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 467 transitions. [2024-11-22 01:59:43,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-22 01:59:43,641 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:59:43,641 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:59:43,652 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-22 01:59:43,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:59:43,842 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:59:43,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:59:43,842 INFO L85 PathProgramCache]: Analyzing trace with hash 361139953, now seen corresponding path program 1 times [2024-11-22 01:59:43,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:59:43,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175093764] [2024-11-22 01:59:43,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:59:43,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:59:43,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:59:44,025 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-22 01:59:44,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:59:44,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175093764] [2024-11-22 01:59:44,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175093764] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:59:44,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [744562115] [2024-11-22 01:59:44,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:59:44,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:59:44,027 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:59:44,030 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:59:44,033 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-22 01:59:44,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:59:44,286 INFO L255 TraceCheckSpWp]: Trace formula consists of 897 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-22 01:59:44,292 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:59:44,346 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-22 01:59:44,346 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:59:44,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [744562115] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:59:44,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:59:44,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2024-11-22 01:59:44,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797356474] [2024-11-22 01:59:44,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:59:44,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 01:59:44,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:59:44,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 01:59:44,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-22 01:59:44,350 INFO L87 Difference]: Start difference. First operand 303 states and 467 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-22 01:59:44,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:59:44,424 INFO L93 Difference]: Finished difference Result 595 states and 923 transitions. [2024-11-22 01:59:44,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:59:44,425 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 95 [2024-11-22 01:59:44,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:59:44,427 INFO L225 Difference]: With dead ends: 595 [2024-11-22 01:59:44,428 INFO L226 Difference]: Without dead ends: 305 [2024-11-22 01:59:44,429 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-22 01:59:44,430 INFO L432 NwaCegarLoop]: 376 mSDtfsCounter, 2 mSDsluCounter, 1111 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1487 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:59:44,432 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1487 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:59:44,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2024-11-22 01:59:44,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 305. [2024-11-22 01:59:44,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 237 states have (on average 1.5485232067510548) internal successors, (367), 242 states have internal predecessors, (367), 50 states have call successors, (50), 15 states have call predecessors, (50), 17 states have return successors, (56), 49 states have call predecessors, (56), 49 states have call successors, (56) [2024-11-22 01:59:44,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 473 transitions. [2024-11-22 01:59:44,458 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 473 transitions. Word has length 95 [2024-11-22 01:59:44,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:59:44,459 INFO L471 AbstractCegarLoop]: Abstraction has 305 states and 473 transitions. [2024-11-22 01:59:44,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-22 01:59:44,460 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 473 transitions. [2024-11-22 01:59:44,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-22 01:59:44,462 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:59:44,462 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:59:44,471 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-22 01:59:44,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:59:44,663 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:59:44,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:59:44,664 INFO L85 PathProgramCache]: Analyzing trace with hash 639964823, now seen corresponding path program 1 times [2024-11-22 01:59:44,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:59:44,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020846493] [2024-11-22 01:59:44,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:59:44,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:59:44,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:59:44,852 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-22 01:59:44,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:59:44,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020846493] [2024-11-22 01:59:44,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020846493] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:59:44,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:59:44,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 01:59:44,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92233479] [2024-11-22 01:59:44,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:59:44,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 01:59:44,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:59:44,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 01:59:44,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:59:44,857 INFO L87 Difference]: Start difference. First operand 305 states and 473 transitions. Second operand has 5 states, 4 states have (on average 15.75) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-22 01:59:44,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:59:44,906 INFO L93 Difference]: Finished difference Result 587 states and 914 transitions. [2024-11-22 01:59:44,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:59:44,907 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.75) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 96 [2024-11-22 01:59:44,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:59:44,910 INFO L225 Difference]: With dead ends: 587 [2024-11-22 01:59:44,910 INFO L226 Difference]: Without dead ends: 305 [2024-11-22 01:59:44,912 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:59:44,912 INFO L432 NwaCegarLoop]: 379 mSDtfsCounter, 2 mSDsluCounter, 1126 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1505 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:59:44,913 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1505 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:59:44,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2024-11-22 01:59:44,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 305. [2024-11-22 01:59:44,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 237 states have (on average 1.5485232067510548) internal successors, (367), 242 states have internal predecessors, (367), 50 states have call successors, (50), 15 states have call predecessors, (50), 17 states have return successors, (55), 49 states have call predecessors, (55), 49 states have call successors, (55) [2024-11-22 01:59:44,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 472 transitions. [2024-11-22 01:59:44,928 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 472 transitions. Word has length 96 [2024-11-22 01:59:44,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:59:44,929 INFO L471 AbstractCegarLoop]: Abstraction has 305 states and 472 transitions. [2024-11-22 01:59:44,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.75) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-22 01:59:44,929 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 472 transitions. [2024-11-22 01:59:44,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-22 01:59:44,931 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:59:44,931 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:59:44,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 01:59:44,932 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:59:44,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:59:44,933 INFO L85 PathProgramCache]: Analyzing trace with hash 1163878910, now seen corresponding path program 2 times [2024-11-22 01:59:44,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:59:44,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727215232] [2024-11-22 01:59:44,933 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 01:59:44,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:59:44,970 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 01:59:44,971 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 01:59:45,071 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-22 01:59:45,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:59:45,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727215232] [2024-11-22 01:59:45,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727215232] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:59:45,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:59:45,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 01:59:45,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880414834] [2024-11-22 01:59:45,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:59:45,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 01:59:45,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:59:45,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 01:59:45,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:59:45,076 INFO L87 Difference]: Start difference. First operand 305 states and 472 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-22 01:59:45,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:59:45,132 INFO L93 Difference]: Finished difference Result 585 states and 909 transitions. [2024-11-22 01:59:45,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:59:45,133 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 97 [2024-11-22 01:59:45,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:59:45,138 INFO L225 Difference]: With dead ends: 585 [2024-11-22 01:59:45,138 INFO L226 Difference]: Without dead ends: 305 [2024-11-22 01:59:45,139 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:59:45,140 INFO L432 NwaCegarLoop]: 377 mSDtfsCounter, 2 mSDsluCounter, 1114 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1491 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:59:45,141 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1491 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:59:45,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2024-11-22 01:59:45,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 305. [2024-11-22 01:59:45,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 237 states have (on average 1.5485232067510548) internal successors, (367), 242 states have internal predecessors, (367), 50 states have call successors, (50), 15 states have call predecessors, (50), 17 states have return successors, (54), 49 states have call predecessors, (54), 49 states have call successors, (54) [2024-11-22 01:59:45,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 471 transitions. [2024-11-22 01:59:45,160 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 471 transitions. Word has length 97 [2024-11-22 01:59:45,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:59:45,160 INFO L471 AbstractCegarLoop]: Abstraction has 305 states and 471 transitions. [2024-11-22 01:59:45,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-22 01:59:45,161 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 471 transitions. [2024-11-22 01:59:45,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-22 01:59:45,164 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:59:45,164 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] [2024-11-22 01:59:45,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 01:59:45,164 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:59:45,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:59:45,165 INFO L85 PathProgramCache]: Analyzing trace with hash 822650886, now seen corresponding path program 3 times [2024-11-22 01:59:45,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:59:45,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097817746] [2024-11-22 01:59:45,166 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 01:59:45,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:59:45,199 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-22 01:59:45,199 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 01:59:45,282 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-22 01:59:45,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:59:45,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097817746] [2024-11-22 01:59:45,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097817746] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:59:45,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:59:45,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:59:45,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980888001] [2024-11-22 01:59:45,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:59:45,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:59:45,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:59:45,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:59:45,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:59:45,285 INFO L87 Difference]: Start difference. First operand 305 states and 471 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 01:59:45,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:59:45,303 INFO L93 Difference]: Finished difference Result 456 states and 686 transitions. [2024-11-22 01:59:45,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:59:45,304 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 98 [2024-11-22 01:59:45,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:59:45,308 INFO L225 Difference]: With dead ends: 456 [2024-11-22 01:59:45,308 INFO L226 Difference]: Without dead ends: 354 [2024-11-22 01:59:45,309 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:59:45,309 INFO L432 NwaCegarLoop]: 385 mSDtfsCounter, 279 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:59:45,310 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 518 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:59:45,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2024-11-22 01:59:45,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 354. [2024-11-22 01:59:45,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 277 states have (on average 1.5487364620938628) internal successors, (429), 282 states have internal predecessors, (429), 54 states have call successors, (54), 21 states have call predecessors, (54), 22 states have return successors, (58), 53 states have call predecessors, (58), 53 states have call successors, (58) [2024-11-22 01:59:45,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 541 transitions. [2024-11-22 01:59:45,327 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 541 transitions. Word has length 98 [2024-11-22 01:59:45,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:59:45,327 INFO L471 AbstractCegarLoop]: Abstraction has 354 states and 541 transitions. [2024-11-22 01:59:45,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 01:59:45,328 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 541 transitions. [2024-11-22 01:59:45,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-22 01:59:45,330 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:59:45,330 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:59:45,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 01:59:45,331 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:59:45,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:59:45,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1678121645, now seen corresponding path program 1 times [2024-11-22 01:59:45,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:59:45,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583038988] [2024-11-22 01:59:45,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:59:45,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:59:45,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:59:45,536 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-22 01:59:45,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:59:45,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583038988] [2024-11-22 01:59:45,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583038988] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:59:45,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:59:45,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 01:59:45,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383499360] [2024-11-22 01:59:45,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:59:45,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 01:59:45,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:59:45,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 01:59:45,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:59:45,539 INFO L87 Difference]: Start difference. First operand 354 states and 541 transitions. Second operand has 5 states, 4 states have (on average 23.75) internal successors, (95), 5 states have internal predecessors, (95), 3 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-22 01:59:45,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:59:45,586 INFO L93 Difference]: Finished difference Result 687 states and 1055 transitions. [2024-11-22 01:59:45,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:59:45,587 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 23.75) internal successors, (95), 5 states have internal predecessors, (95), 3 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 152 [2024-11-22 01:59:45,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:59:45,590 INFO L225 Difference]: With dead ends: 687 [2024-11-22 01:59:45,590 INFO L226 Difference]: Without dead ends: 356 [2024-11-22 01:59:45,591 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:59:45,593 INFO L432 NwaCegarLoop]: 379 mSDtfsCounter, 1 mSDsluCounter, 1125 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1504 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:59:45,593 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1504 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:59:45,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2024-11-22 01:59:45,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2024-11-22 01:59:45,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 278 states have (on average 1.5467625899280575) internal successors, (430), 284 states have internal predecessors, (430), 54 states have call successors, (54), 21 states have call predecessors, (54), 23 states have return successors, (60), 53 states have call predecessors, (60), 53 states have call successors, (60) [2024-11-22 01:59:45,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 544 transitions. [2024-11-22 01:59:45,611 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 544 transitions. Word has length 152 [2024-11-22 01:59:45,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:59:45,611 INFO L471 AbstractCegarLoop]: Abstraction has 356 states and 544 transitions. [2024-11-22 01:59:45,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 23.75) internal successors, (95), 5 states have internal predecessors, (95), 3 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-22 01:59:45,611 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 544 transitions. [2024-11-22 01:59:45,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-22 01:59:45,614 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:59:45,614 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:59:45,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 01:59:45,615 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:59:45,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:59:45,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1982212967, now seen corresponding path program 1 times [2024-11-22 01:59:45,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:59:45,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657271908] [2024-11-22 01:59:45,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:59:45,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:59:45,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:59:45,779 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-22 01:59:45,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:59:45,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657271908] [2024-11-22 01:59:45,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657271908] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:59:45,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:59:45,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 01:59:45,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740717796] [2024-11-22 01:59:45,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:59:45,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 01:59:45,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:59:45,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 01:59:45,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 01:59:45,782 INFO L87 Difference]: Start difference. First operand 356 states and 544 transitions. Second operand has 8 states, 7 states have (on average 14.285714285714286) internal successors, (100), 8 states have internal predecessors, (100), 4 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-22 01:59:45,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:59:45,923 INFO L93 Difference]: Finished difference Result 692 states and 1064 transitions. [2024-11-22 01:59:45,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 01:59:45,924 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 14.285714285714286) internal successors, (100), 8 states have internal predecessors, (100), 4 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) Word has length 153 [2024-11-22 01:59:45,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:59:45,927 INFO L225 Difference]: With dead ends: 692 [2024-11-22 01:59:45,927 INFO L226 Difference]: Without dead ends: 361 [2024-11-22 01:59:45,929 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-22 01:59:45,929 INFO L432 NwaCegarLoop]: 371 mSDtfsCounter, 5 mSDsluCounter, 2197 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2568 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:59:45,929 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2568 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:59:45,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2024-11-22 01:59:45,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 361. [2024-11-22 01:59:45,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 282 states have (on average 1.5425531914893618) internal successors, (435), 288 states have internal predecessors, (435), 54 states have call successors, (54), 22 states have call predecessors, (54), 24 states have return successors, (65), 53 states have call predecessors, (65), 53 states have call successors, (65) [2024-11-22 01:59:45,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 554 transitions. [2024-11-22 01:59:45,945 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 554 transitions. Word has length 153 [2024-11-22 01:59:45,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:59:45,946 INFO L471 AbstractCegarLoop]: Abstraction has 361 states and 554 transitions. [2024-11-22 01:59:45,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 14.285714285714286) internal successors, (100), 8 states have internal predecessors, (100), 4 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-22 01:59:45,946 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 554 transitions. [2024-11-22 01:59:45,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-22 01:59:45,949 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:59:45,949 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:59:45,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 01:59:45,949 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:59:45,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:59:45,950 INFO L85 PathProgramCache]: Analyzing trace with hash -1985766572, now seen corresponding path program 1 times [2024-11-22 01:59:45,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:59:45,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051579294] [2024-11-22 01:59:45,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:59:45,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:59:45,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:59:46,105 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-22 01:59:46,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:59:46,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051579294] [2024-11-22 01:59:46,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051579294] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:59:46,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1044377795] [2024-11-22 01:59:46,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:59:46,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:59:46,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:59:46,108 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:59:46,110 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-22 01:59:46,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:59:46,399 INFO L255 TraceCheckSpWp]: Trace formula consists of 1173 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 01:59:46,404 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:59:46,428 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-11-22 01:59:46,430 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 01:59:46,564 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-22 01:59:46,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1044377795] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 01:59:46,565 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 01:59:46,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-22 01:59:46,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054067379] [2024-11-22 01:59:46,565 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 01:59:46,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 01:59:46,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:59:46,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 01:59:46,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:59:46,570 INFO L87 Difference]: Start difference. First operand 361 states and 554 transitions. Second operand has 7 states, 7 states have (on average 20.0) internal successors, (140), 7 states have internal predecessors, (140), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-11-22 01:59:46,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:59:46,736 INFO L93 Difference]: Finished difference Result 844 states and 1342 transitions. [2024-11-22 01:59:46,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 01:59:46,737 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 7 states have internal predecessors, (140), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 154 [2024-11-22 01:59:46,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:59:46,742 INFO L225 Difference]: With dead ends: 844 [2024-11-22 01:59:46,742 INFO L226 Difference]: Without dead ends: 688 [2024-11-22 01:59:46,743 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 305 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:59:46,744 INFO L432 NwaCegarLoop]: 413 mSDtfsCounter, 466 mSDsluCounter, 1371 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 511 SdHoareTripleChecker+Valid, 1784 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:59:46,744 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [511 Valid, 1784 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:59:46,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2024-11-22 01:59:46,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 664. [2024-11-22 01:59:46,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 664 states, 521 states have (on average 1.598848368522073) internal successors, (833), 527 states have internal predecessors, (833), 118 states have call successors, (118), 22 states have call predecessors, (118), 24 states have return successors, (139), 117 states have call predecessors, (139), 117 states have call successors, (139) [2024-11-22 01:59:46,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 664 states and 1090 transitions. [2024-11-22 01:59:46,783 INFO L78 Accepts]: Start accepts. Automaton has 664 states and 1090 transitions. Word has length 154 [2024-11-22 01:59:46,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:59:46,783 INFO L471 AbstractCegarLoop]: Abstraction has 664 states and 1090 transitions. [2024-11-22 01:59:46,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 7 states have internal predecessors, (140), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-11-22 01:59:46,784 INFO L276 IsEmpty]: Start isEmpty. Operand 664 states and 1090 transitions. [2024-11-22 01:59:46,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-22 01:59:46,788 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:59:46,788 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:59:46,799 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-22 01:59:46,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:59:46,993 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:59:46,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:59:46,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1798339657, now seen corresponding path program 1 times [2024-11-22 01:59:46,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:59:46,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551887522] [2024-11-22 01:59:46,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:59:46,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:59:47,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:59:47,072 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-22 01:59:47,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:59:47,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551887522] [2024-11-22 01:59:47,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551887522] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:59:47,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:59:47,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:59:47,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179450637] [2024-11-22 01:59:47,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:59:47,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:59:47,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:59:47,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:59:47,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:59:47,075 INFO L87 Difference]: Start difference. First operand 664 states and 1090 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-22 01:59:47,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:59:47,114 INFO L93 Difference]: Finished difference Result 1565 states and 2608 transitions. [2024-11-22 01:59:47,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:59:47,115 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 160 [2024-11-22 01:59:47,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:59:47,121 INFO L225 Difference]: With dead ends: 1565 [2024-11-22 01:59:47,121 INFO L226 Difference]: Without dead ends: 972 [2024-11-22 01:59:47,124 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:59:47,124 INFO L432 NwaCegarLoop]: 397 mSDtfsCounter, 97 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 779 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:59:47,125 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 779 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:59:47,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 972 states. [2024-11-22 01:59:47,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 972 to 964. [2024-11-22 01:59:47,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 964 states, 757 states have (on average 1.608982826948481) internal successors, (1218), 763 states have internal predecessors, (1218), 182 states have call successors, (182), 22 states have call predecessors, (182), 24 states have return successors, (213), 181 states have call predecessors, (213), 181 states have call successors, (213) [2024-11-22 01:59:47,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 964 states to 964 states and 1613 transitions. [2024-11-22 01:59:47,193 INFO L78 Accepts]: Start accepts. Automaton has 964 states and 1613 transitions. Word has length 160 [2024-11-22 01:59:47,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:59:47,194 INFO L471 AbstractCegarLoop]: Abstraction has 964 states and 1613 transitions. [2024-11-22 01:59:47,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-22 01:59:47,194 INFO L276 IsEmpty]: Start isEmpty. Operand 964 states and 1613 transitions. [2024-11-22 01:59:47,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-22 01:59:47,202 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:59:47,202 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:59:47,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 01:59:47,203 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:59:47,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:59:47,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1536421008, now seen corresponding path program 1 times [2024-11-22 01:59:47,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:59:47,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18338787] [2024-11-22 01:59:47,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:59:47,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:59:47,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:59:47,283 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-22 01:59:47,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:59:47,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18338787] [2024-11-22 01:59:47,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18338787] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:59:47,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:59:47,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:59:47,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883391506] [2024-11-22 01:59:47,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:59:47,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:59:47,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:59:47,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:59:47,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:59:47,286 INFO L87 Difference]: Start difference. First operand 964 states and 1613 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-22 01:59:47,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:59:47,340 INFO L93 Difference]: Finished difference Result 2280 states and 3837 transitions. [2024-11-22 01:59:47,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:59:47,341 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 161 [2024-11-22 01:59:47,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:59:47,351 INFO L225 Difference]: With dead ends: 2280 [2024-11-22 01:59:47,351 INFO L226 Difference]: Without dead ends: 1440 [2024-11-22 01:59:47,355 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:59:47,356 INFO L432 NwaCegarLoop]: 384 mSDtfsCounter, 95 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:59:47,356 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 762 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:59:47,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1440 states. [2024-11-22 01:59:47,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1440 to 1432. [2024-11-22 01:59:47,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1432 states, 1130 states have (on average 1.6150442477876106) internal successors, (1825), 1136 states have internal predecessors, (1825), 277 states have call successors, (277), 22 states have call predecessors, (277), 24 states have return successors, (308), 276 states have call predecessors, (308), 276 states have call successors, (308) [2024-11-22 01:59:47,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 2410 transitions. [2024-11-22 01:59:47,428 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 2410 transitions. Word has length 161 [2024-11-22 01:59:47,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:59:47,428 INFO L471 AbstractCegarLoop]: Abstraction has 1432 states and 2410 transitions. [2024-11-22 01:59:47,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-22 01:59:47,429 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 2410 transitions. [2024-11-22 01:59:47,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-22 01:59:47,439 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:59:47,439 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:59:47,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 01:59:47,440 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:59:47,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:59:47,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1645615029, now seen corresponding path program 1 times [2024-11-22 01:59:47,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:59:47,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603333889] [2024-11-22 01:59:47,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:59:47,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:59:47,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:59:47,510 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-22 01:59:47,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:59:47,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603333889] [2024-11-22 01:59:47,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603333889] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:59:47,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:59:47,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:59:47,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664803581] [2024-11-22 01:59:47,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:59:47,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:59:47,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:59:47,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:59:47,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:59:47,512 INFO L87 Difference]: Start difference. First operand 1432 states and 2410 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-22 01:59:47,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:59:47,627 INFO L93 Difference]: Finished difference Result 3327 states and 5644 transitions. [2024-11-22 01:59:47,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:59:47,627 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 162 [2024-11-22 01:59:47,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:59:47,642 INFO L225 Difference]: With dead ends: 3327 [2024-11-22 01:59:47,643 INFO L226 Difference]: Without dead ends: 2144 [2024-11-22 01:59:47,649 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:59:47,650 INFO L432 NwaCegarLoop]: 384 mSDtfsCounter, 93 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 759 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:59:47,650 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 759 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:59:47,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2144 states. [2024-11-22 01:59:47,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2144 to 2136. [2024-11-22 01:59:47,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2136 states, 1711 states have (on average 1.6201052016364699) internal successors, (2772), 1717 states have internal predecessors, (2772), 400 states have call successors, (400), 22 states have call predecessors, (400), 24 states have return successors, (447), 399 states have call predecessors, (447), 399 states have call successors, (447) [2024-11-22 01:59:47,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2136 states to 2136 states and 3619 transitions. [2024-11-22 01:59:47,785 INFO L78 Accepts]: Start accepts. Automaton has 2136 states and 3619 transitions. Word has length 162 [2024-11-22 01:59:47,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:59:47,785 INFO L471 AbstractCegarLoop]: Abstraction has 2136 states and 3619 transitions. [2024-11-22 01:59:47,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-22 01:59:47,786 INFO L276 IsEmpty]: Start isEmpty. Operand 2136 states and 3619 transitions. [2024-11-22 01:59:47,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-22 01:59:47,800 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:59:47,801 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:59:47,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 01:59:47,801 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:59:47,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:59:47,802 INFO L85 PathProgramCache]: Analyzing trace with hash 2080668655, now seen corresponding path program 1 times [2024-11-22 01:59:47,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:59:47,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519173089] [2024-11-22 01:59:47,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:59:47,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:59:47,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:59:47,880 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-22 01:59:47,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:59:47,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519173089] [2024-11-22 01:59:47,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519173089] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:59:47,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:59:47,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:59:47,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220856014] [2024-11-22 01:59:47,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:59:47,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:59:47,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:59:47,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:59:47,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:59:47,883 INFO L87 Difference]: Start difference. First operand 2136 states and 3619 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-22 01:59:48,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:59:48,019 INFO L93 Difference]: Finished difference Result 4946 states and 8441 transitions. [2024-11-22 01:59:48,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:59:48,020 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 163 [2024-11-22 01:59:48,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:59:48,042 INFO L225 Difference]: With dead ends: 4946 [2024-11-22 01:59:48,042 INFO L226 Difference]: Without dead ends: 3263 [2024-11-22 01:59:48,053 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:59:48,054 INFO L432 NwaCegarLoop]: 384 mSDtfsCounter, 91 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 759 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:59:48,054 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 759 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:59:48,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3263 states. [2024-11-22 01:59:48,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3263 to 3255. [2024-11-22 01:59:48,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3255 states, 2651 states have (on average 1.6231610712938513) internal successors, (4303), 2657 states have internal predecessors, (4303), 579 states have call successors, (579), 22 states have call predecessors, (579), 24 states have return successors, (652), 578 states have call predecessors, (652), 578 states have call successors, (652) [2024-11-22 01:59:48,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3255 states to 3255 states and 5534 transitions. [2024-11-22 01:59:48,299 INFO L78 Accepts]: Start accepts. Automaton has 3255 states and 5534 transitions. Word has length 163 [2024-11-22 01:59:48,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:59:48,300 INFO L471 AbstractCegarLoop]: Abstraction has 3255 states and 5534 transitions. [2024-11-22 01:59:48,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-22 01:59:48,300 INFO L276 IsEmpty]: Start isEmpty. Operand 3255 states and 5534 transitions. [2024-11-22 01:59:48,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-22 01:59:48,321 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:59:48,321 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:59:48,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 01:59:48,321 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:59:48,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:59:48,322 INFO L85 PathProgramCache]: Analyzing trace with hash 686721369, now seen corresponding path program 1 times [2024-11-22 01:59:48,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:59:48,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062597073] [2024-11-22 01:59:48,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:59:48,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:59:48,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:59:48,406 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-22 01:59:48,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:59:48,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062597073] [2024-11-22 01:59:48,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062597073] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:59:48,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:59:48,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:59:48,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736731020] [2024-11-22 01:59:48,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:59:48,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:59:48,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:59:48,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:59:48,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:59:48,409 INFO L87 Difference]: Start difference. First operand 3255 states and 5534 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-22 01:59:48,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:59:48,585 INFO L93 Difference]: Finished difference Result 7864 states and 13440 transitions. [2024-11-22 01:59:48,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:59:48,586 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 164 [2024-11-22 01:59:48,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:59:48,624 INFO L225 Difference]: With dead ends: 7864 [2024-11-22 01:59:48,624 INFO L226 Difference]: Without dead ends: 5294 [2024-11-22 01:59:48,639 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:59:48,640 INFO L432 NwaCegarLoop]: 394 mSDtfsCounter, 89 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 775 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:59:48,640 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 775 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:59:48,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5294 states. [2024-11-22 01:59:48,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5294 to 5286. [2024-11-22 01:59:48,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5286 states, 4306 states have (on average 1.6151881096144913) internal successors, (6955), 4312 states have internal predecessors, (6955), 955 states have call successors, (955), 22 states have call predecessors, (955), 24 states have return successors, (1072), 954 states have call predecessors, (1072), 954 states have call successors, (1072) [2024-11-22 01:59:48,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5286 states to 5286 states and 8982 transitions. [2024-11-22 01:59:48,997 INFO L78 Accepts]: Start accepts. Automaton has 5286 states and 8982 transitions. Word has length 164 [2024-11-22 01:59:48,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:59:48,997 INFO L471 AbstractCegarLoop]: Abstraction has 5286 states and 8982 transitions. [2024-11-22 01:59:48,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-22 01:59:48,998 INFO L276 IsEmpty]: Start isEmpty. Operand 5286 states and 8982 transitions. [2024-11-22 01:59:49,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-22 01:59:49,032 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:59:49,032 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:59:49,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 01:59:49,033 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:59:49,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:59:49,033 INFO L85 PathProgramCache]: Analyzing trace with hash -610180533, now seen corresponding path program 1 times [2024-11-22 01:59:49,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:59:49,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811410868] [2024-11-22 01:59:49,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:59:49,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:59:49,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:59:49,104 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-22 01:59:49,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:59:49,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811410868] [2024-11-22 01:59:49,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811410868] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:59:49,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:59:49,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:59:49,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543972970] [2024-11-22 01:59:49,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:59:49,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:59:49,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:59:49,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:59:49,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:59:49,111 INFO L87 Difference]: Start difference. First operand 5286 states and 8982 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-22 01:59:49,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:59:49,382 INFO L93 Difference]: Finished difference Result 13006 states and 22238 transitions. [2024-11-22 01:59:49,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:59:49,383 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 165 [2024-11-22 01:59:49,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:59:49,461 INFO L225 Difference]: With dead ends: 13006 [2024-11-22 01:59:49,461 INFO L226 Difference]: Without dead ends: 8782 [2024-11-22 01:59:49,485 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:59:49,486 INFO L432 NwaCegarLoop]: 388 mSDtfsCounter, 87 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 766 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:59:49,486 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 766 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:59:49,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8782 states. [2024-11-22 01:59:50,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8782 to 8774. [2024-11-22 01:59:50,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8774 states, 7188 states have (on average 1.6122704507512522) internal successors, (11589), 7194 states have internal predecessors, (11589), 1561 states have call successors, (1561), 22 states have call predecessors, (1561), 24 states have return successors, (1756), 1560 states have call predecessors, (1756), 1560 states have call successors, (1756) [2024-11-22 01:59:50,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8774 states to 8774 states and 14906 transitions. [2024-11-22 01:59:50,110 INFO L78 Accepts]: Start accepts. Automaton has 8774 states and 14906 transitions. Word has length 165 [2024-11-22 01:59:50,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:59:50,110 INFO L471 AbstractCegarLoop]: Abstraction has 8774 states and 14906 transitions. [2024-11-22 01:59:50,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-22 01:59:50,111 INFO L276 IsEmpty]: Start isEmpty. Operand 8774 states and 14906 transitions. [2024-11-22 01:59:50,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-22 01:59:50,163 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:59:50,163 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:59:50,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-22 01:59:50,164 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:59:50,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:59:50,164 INFO L85 PathProgramCache]: Analyzing trace with hash 166608759, now seen corresponding path program 1 times [2024-11-22 01:59:50,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:59:50,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171223487] [2024-11-22 01:59:50,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:59:50,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:59:50,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:59:50,231 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-22 01:59:50,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:59:50,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171223487] [2024-11-22 01:59:50,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171223487] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:59:50,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:59:50,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:59:50,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098000299] [2024-11-22 01:59:50,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:59:50,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:59:50,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:59:50,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:59:50,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:59:50,234 INFO L87 Difference]: Start difference. First operand 8774 states and 14906 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-22 01:59:50,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:59:50,681 INFO L93 Difference]: Finished difference Result 22665 states and 38663 transitions. [2024-11-22 01:59:50,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:59:50,682 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 166 [2024-11-22 01:59:50,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:59:50,782 INFO L225 Difference]: With dead ends: 22665 [2024-11-22 01:59:50,783 INFO L226 Difference]: Without dead ends: 15375 [2024-11-22 01:59:50,824 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:59:50,824 INFO L432 NwaCegarLoop]: 394 mSDtfsCounter, 85 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 775 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:59:50,825 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 775 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:59:50,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15375 states. [2024-11-22 01:59:51,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15375 to 15367. [2024-11-22 01:59:51,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15367 states, 12578 states have (on average 1.6024010176498649) internal successors, (20155), 12584 states have internal predecessors, (20155), 2764 states have call successors, (2764), 22 states have call predecessors, (2764), 24 states have return successors, (3103), 2763 states have call predecessors, (3103), 2763 states have call successors, (3103) [2024-11-22 01:59:51,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15367 states to 15367 states and 26022 transitions. [2024-11-22 01:59:51,752 INFO L78 Accepts]: Start accepts. Automaton has 15367 states and 26022 transitions. Word has length 166 [2024-11-22 01:59:51,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:59:51,752 INFO L471 AbstractCegarLoop]: Abstraction has 15367 states and 26022 transitions. [2024-11-22 01:59:51,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-22 01:59:51,753 INFO L276 IsEmpty]: Start isEmpty. Operand 15367 states and 26022 transitions. [2024-11-22 01:59:51,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-22 01:59:51,825 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:59:51,825 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:59:51,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-22 01:59:51,826 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:59:51,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:59:51,826 INFO L85 PathProgramCache]: Analyzing trace with hash -2030999030, now seen corresponding path program 1 times [2024-11-22 01:59:51,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:59:51,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847915257] [2024-11-22 01:59:51,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:59:51,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:59:51,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:59:51,896 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-22 01:59:51,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:59:51,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847915257] [2024-11-22 01:59:51,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847915257] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:59:51,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:59:51,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:59:51,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144133640] [2024-11-22 01:59:51,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:59:51,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:59:51,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:59:51,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:59:51,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:59:51,900 INFO L87 Difference]: Start difference. First operand 15367 states and 26022 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-22 01:59:52,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:59:52,994 INFO L93 Difference]: Finished difference Result 40621 states and 69106 transitions. [2024-11-22 01:59:52,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:59:52,995 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 167 [2024-11-22 01:59:52,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:59:53,164 INFO L225 Difference]: With dead ends: 40621 [2024-11-22 01:59:53,164 INFO L226 Difference]: Without dead ends: 27345 [2024-11-22 01:59:53,360 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:59:53,361 INFO L432 NwaCegarLoop]: 384 mSDtfsCounter, 83 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:59:53,361 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 762 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:59:53,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27345 states. [2024-11-22 01:59:54,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27345 to 27337. [2024-11-22 01:59:54,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27337 states, 22509 states have (on average 1.5977164689679684) internal successors, (35963), 22515 states have internal predecessors, (35963), 4803 states have call successors, (4803), 22 states have call predecessors, (4803), 24 states have return successors, (5416), 4802 states have call predecessors, (5416), 4802 states have call successors, (5416) [2024-11-22 01:59:54,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27337 states to 27337 states and 46182 transitions. [2024-11-22 01:59:54,816 INFO L78 Accepts]: Start accepts. Automaton has 27337 states and 46182 transitions. Word has length 167 [2024-11-22 01:59:54,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:59:54,817 INFO L471 AbstractCegarLoop]: Abstraction has 27337 states and 46182 transitions. [2024-11-22 01:59:54,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-22 01:59:54,818 INFO L276 IsEmpty]: Start isEmpty. Operand 27337 states and 46182 transitions. [2024-11-22 01:59:54,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-22 01:59:54,942 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:59:54,942 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:59:54,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-22 01:59:54,943 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:59:54,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:59:54,943 INFO L85 PathProgramCache]: Analyzing trace with hash 576227637, now seen corresponding path program 1 times [2024-11-22 01:59:54,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:59:54,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488669667] [2024-11-22 01:59:54,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:59:54,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:59:54,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:59:55,041 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-22 01:59:55,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:59:55,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488669667] [2024-11-22 01:59:55,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488669667] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:59:55,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:59:55,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:59:55,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221648285] [2024-11-22 01:59:55,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:59:55,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:59:55,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:59:55,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:59:55,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:59:55,045 INFO L87 Difference]: Start difference. First operand 27337 states and 46182 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-22 01:59:56,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:59:56,758 INFO L93 Difference]: Finished difference Result 74408 states and 126173 transitions. [2024-11-22 01:59:56,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:59:56,759 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 168 [2024-11-22 01:59:56,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:59:57,049 INFO L225 Difference]: With dead ends: 74408 [2024-11-22 01:59:57,049 INFO L226 Difference]: Without dead ends: 49894 [2024-11-22 01:59:57,150 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:59:57,152 INFO L432 NwaCegarLoop]: 386 mSDtfsCounter, 81 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 764 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:59:57,152 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 764 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:59:57,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49894 states. [2024-11-22 01:59:59,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49894 to 49886. [2024-11-22 01:59:59,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49886 states, 41343 states have (on average 1.5916600149964928) internal successors, (65804), 41349 states have internal predecessors, (65804), 8518 states have call successors, (8518), 22 states have call predecessors, (8518), 24 states have return successors, (9663), 8517 states have call predecessors, (9663), 8517 states have call successors, (9663) [2024-11-22 01:59:59,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49886 states to 49886 states and 83985 transitions. [2024-11-22 01:59:59,755 INFO L78 Accepts]: Start accepts. Automaton has 49886 states and 83985 transitions. Word has length 168 [2024-11-22 01:59:59,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:59:59,757 INFO L471 AbstractCegarLoop]: Abstraction has 49886 states and 83985 transitions. [2024-11-22 01:59:59,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-22 01:59:59,758 INFO L276 IsEmpty]: Start isEmpty. Operand 49886 states and 83985 transitions. [2024-11-22 02:00:00,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-22 02:00:00,348 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:00:00,348 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:00:00,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-22 02:00:00,349 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:00:00,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:00:00,350 INFO L85 PathProgramCache]: Analyzing trace with hash -1428261622, now seen corresponding path program 1 times [2024-11-22 02:00:00,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:00:00,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013032133] [2024-11-22 02:00:00,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:00:00,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:00:00,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:00:00,425 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-22 02:00:00,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:00:00,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013032133] [2024-11-22 02:00:00,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013032133] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:00:00,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:00:00,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:00:00,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187995823] [2024-11-22 02:00:00,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:00:00,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:00:00,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:00:00,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:00:00,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:00:00,428 INFO L87 Difference]: Start difference. First operand 49886 states and 83985 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-22 02:00:02,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:00:02,825 INFO L93 Difference]: Finished difference Result 92894 states and 156735 transitions. [2024-11-22 02:00:02,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:00:02,825 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 169 [2024-11-22 02:00:02,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:00:03,357 INFO L225 Difference]: With dead ends: 92894 [2024-11-22 02:00:03,358 INFO L226 Difference]: Without dead ends: 92738 [2024-11-22 02:00:03,412 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:00:03,413 INFO L432 NwaCegarLoop]: 386 mSDtfsCounter, 76 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 768 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:00:03,413 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 768 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:00:03,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92738 states. [2024-11-22 02:00:06,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92738 to 92730. [2024-11-22 02:00:07,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92730 states, 77388 states have (on average 1.584095725435468) internal successors, (122590), 77394 states have internal predecessors, (122590), 15317 states have call successors, (15317), 22 states have call predecessors, (15317), 24 states have return successors, (17508), 15316 states have call predecessors, (17508), 15316 states have call successors, (17508) [2024-11-22 02:00:07,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92730 states to 92730 states and 155415 transitions. [2024-11-22 02:00:07,636 INFO L78 Accepts]: Start accepts. Automaton has 92730 states and 155415 transitions. Word has length 169 [2024-11-22 02:00:07,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:00:07,637 INFO L471 AbstractCegarLoop]: Abstraction has 92730 states and 155415 transitions. [2024-11-22 02:00:07,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-22 02:00:07,637 INFO L276 IsEmpty]: Start isEmpty. Operand 92730 states and 155415 transitions. [2024-11-22 02:00:07,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-22 02:00:07,805 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:00:07,805 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:00:07,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-22 02:00:07,805 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:00:07,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:00:07,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1748754934, now seen corresponding path program 1 times [2024-11-22 02:00:07,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:00:07,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821660601] [2024-11-22 02:00:07,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:00:07,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:00:07,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:00:08,719 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-22 02:00:08,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:00:08,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821660601] [2024-11-22 02:00:08,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821660601] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:00:08,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1672062734] [2024-11-22 02:00:08,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:00:08,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:00:08,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:00:08,723 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 02:00:08,724 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-22 02:00:09,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:00:09,103 INFO L255 TraceCheckSpWp]: Trace formula consists of 1224 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-22 02:00:09,110 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:00:09,822 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 55 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-22 02:00:09,823 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 02:00:10,700 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-22 02:00:10,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1672062734] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 02:00:10,701 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 02:00:10,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 12] total 32 [2024-11-22 02:00:10,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677411603] [2024-11-22 02:00:10,701 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 02:00:10,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-22 02:00:10,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:00:10,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-22 02:00:10,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=849, Unknown=0, NotChecked=0, Total=992 [2024-11-22 02:00:10,704 INFO L87 Difference]: Start difference. First operand 92730 states and 155415 transitions. Second operand has 32 states, 32 states have (on average 9.28125) internal successors, (297), 29 states have internal predecessors, (297), 17 states have call successors, (45), 5 states have call predecessors, (45), 13 states have return successors, (45), 19 states have call predecessors, (45), 17 states have call successors, (45) [2024-11-22 02:00:16,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:00:16,421 INFO L93 Difference]: Finished difference Result 185087 states and 315634 transitions. [2024-11-22 02:00:16,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-22 02:00:16,422 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 9.28125) internal successors, (297), 29 states have internal predecessors, (297), 17 states have call successors, (45), 5 states have call predecessors, (45), 13 states have return successors, (45), 19 states have call predecessors, (45), 17 states have call successors, (45) Word has length 170 [2024-11-22 02:00:16,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:00:17,874 INFO L225 Difference]: With dead ends: 185087 [2024-11-22 02:00:17,874 INFO L226 Difference]: Without dead ends: 184948 [2024-11-22 02:00:17,954 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 374 GetRequests, 324 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 412 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=434, Invalid=2218, Unknown=0, NotChecked=0, Total=2652 [2024-11-22 02:00:17,954 INFO L432 NwaCegarLoop]: 627 mSDtfsCounter, 1712 mSDsluCounter, 6946 mSDsCounter, 0 mSdLazyCounter, 1888 mSolverCounterSat, 384 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1715 SdHoareTripleChecker+Valid, 7573 SdHoareTripleChecker+Invalid, 2272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 384 IncrementalHoareTripleChecker+Valid, 1888 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-22 02:00:17,955 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1715 Valid, 7573 Invalid, 2272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [384 Valid, 1888 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-22 02:00:18,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184948 states. [2024-11-22 02:00:24,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184948 to 184848. [2024-11-22 02:00:24,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184848 states, 154334 states have (on average 1.5849521168375083) internal successors, (244612), 154241 states have internal predecessors, (244612), 30436 states have call successors, (30436), 69 states have call predecessors, (30436), 77 states have return successors, (38094), 30549 states have call predecessors, (38094), 30432 states have call successors, (38094) [2024-11-22 02:00:26,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184848 states to 184848 states and 313142 transitions. [2024-11-22 02:00:26,510 INFO L78 Accepts]: Start accepts. Automaton has 184848 states and 313142 transitions. Word has length 170 [2024-11-22 02:00:26,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:00:26,511 INFO L471 AbstractCegarLoop]: Abstraction has 184848 states and 313142 transitions. [2024-11-22 02:00:26,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 9.28125) internal successors, (297), 29 states have internal predecessors, (297), 17 states have call successors, (45), 5 states have call predecessors, (45), 13 states have return successors, (45), 19 states have call predecessors, (45), 17 states have call successors, (45) [2024-11-22 02:00:26,512 INFO L276 IsEmpty]: Start isEmpty. Operand 184848 states and 313142 transitions. [2024-11-22 02:00:26,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-22 02:00:26,845 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:00:26,846 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:00:26,858 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-22 02:00:27,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:00:27,047 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:00:27,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:00:27,048 INFO L85 PathProgramCache]: Analyzing trace with hash -2067308859, now seen corresponding path program 1 times [2024-11-22 02:00:27,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:00:27,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833094801] [2024-11-22 02:00:27,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:00:27,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:00:27,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:00:27,236 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-22 02:00:27,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:00:27,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833094801] [2024-11-22 02:00:27,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833094801] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:00:27,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:00:27,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 02:00:27,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077785176] [2024-11-22 02:00:27,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:00:27,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 02:00:27,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:00:27,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 02:00:27,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 02:00:27,239 INFO L87 Difference]: Start difference. First operand 184848 states and 313142 transitions. Second operand has 8 states, 8 states have (on average 14.125) internal successors, (113), 8 states have internal predecessors, (113), 5 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 6 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-22 02:00:32,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:00:32,204 INFO L93 Difference]: Finished difference Result 185472 states and 314033 transitions. [2024-11-22 02:00:32,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 02:00:32,205 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 8 states have internal predecessors, (113), 5 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 6 states have call predecessors, (16), 5 states have call successors, (16) Word has length 171 [2024-11-22 02:00:32,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:00:33,127 INFO L225 Difference]: With dead ends: 185472 [2024-11-22 02:00:33,127 INFO L226 Difference]: Without dead ends: 184886 [2024-11-22 02:00:33,210 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2024-11-22 02:00:33,211 INFO L432 NwaCegarLoop]: 418 mSDtfsCounter, 403 mSDsluCounter, 1977 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 2395 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 02:00:33,211 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [404 Valid, 2395 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 02:00:33,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184886 states. [2024-11-22 02:00:39,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184886 to 184878. [2024-11-22 02:00:39,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184878 states, 154352 states have (on average 1.5848320721467815) internal successors, (244622), 154263 states have internal predecessors, (244622), 30448 states have call successors, (30448), 69 states have call predecessors, (30448), 77 states have return successors, (38106), 30561 states have call predecessors, (38106), 30444 states have call successors, (38106)