./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec1_product22.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec1_product22.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 42f22b71ca501045e9e0edcb0da831d4df6c9a8e36f5c60b39b69b3cb971731d --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 00:46:17,126 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 00:46:17,211 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 00:46:17,218 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 00:46:17,221 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 00:46:17,240 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 00:46:17,240 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 00:46:17,243 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 00:46:17,244 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 00:46:17,244 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 00:46:17,244 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 00:46:17,244 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 00:46:17,245 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 00:46:17,245 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 00:46:17,245 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 00:46:17,245 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 00:46:17,246 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 00:46:17,246 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 00:46:17,250 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 00:46:17,250 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 00:46:17,251 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 00:46:17,251 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 00:46:17,251 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 00:46:17,251 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 00:46:17,251 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 00:46:17,252 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 00:46:17,252 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 00:46:17,252 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 00:46:17,252 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 00:46:17,252 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 00:46:17,252 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 00:46:17,253 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 00:46:17,253 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 00:46:17,253 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 00:46:17,253 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 00:46:17,253 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 00:46:17,253 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 00:46:17,253 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 00:46:17,253 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 00:46:17,254 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 00:46:17,254 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 00:46:17,255 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 00:46:17,255 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 42f22b71ca501045e9e0edcb0da831d4df6c9a8e36f5c60b39b69b3cb971731d [2024-10-24 00:46:17,481 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 00:46:17,502 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 00:46:17,505 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 00:46:17,506 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 00:46:17,506 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 00:46:17,507 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec1_product22.cil.c [2024-10-24 00:46:18,880 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 00:46:19,123 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 00:46:19,124 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec1_product22.cil.c [2024-10-24 00:46:19,148 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c58114459/9d1abb2a860c47e28eda65a380c45224/FLAGde93ad33c [2024-10-24 00:46:19,439 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c58114459/9d1abb2a860c47e28eda65a380c45224 [2024-10-24 00:46:19,441 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 00:46:19,443 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 00:46:19,443 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 00:46:19,444 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 00:46:19,449 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 00:46:19,450 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:46:19" (1/1) ... [2024-10-24 00:46:19,450 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52022fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:46:19, skipping insertion in model container [2024-10-24 00:46:19,452 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:46:19" (1/1) ... [2024-10-24 00:46:19,511 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 00:46:20,015 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec1_product22.cil.c[33239,33252] [2024-10-24 00:46:20,082 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 00:46:20,097 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 00:46:20,106 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [48] [2024-10-24 00:46:20,108 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [414] [2024-10-24 00:46:20,108 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [538] [2024-10-24 00:46:20,108 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [767] [2024-10-24 00:46:20,108 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [784] [2024-10-24 00:46:20,108 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1189] [2024-10-24 00:46:20,109 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"AddressBookEncrypt_spec.i","") [1227] [2024-10-24 00:46:20,109 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1257] [2024-10-24 00:46:20,109 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1557] [2024-10-24 00:46:20,109 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1566] [2024-10-24 00:46:20,109 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2637] [2024-10-24 00:46:20,188 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec1_product22.cil.c[33239,33252] [2024-10-24 00:46:20,236 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 00:46:20,272 INFO L204 MainTranslator]: Completed translation [2024-10-24 00:46:20,273 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:46:20 WrapperNode [2024-10-24 00:46:20,273 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 00:46:20,274 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 00:46:20,274 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 00:46:20,274 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 00:46:20,281 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:46:20" (1/1) ... [2024-10-24 00:46:20,308 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:46:20" (1/1) ... [2024-10-24 00:46:20,365 INFO L138 Inliner]: procedures = 128, calls = 190, calls flagged for inlining = 59, calls inlined = 54, statements flattened = 1024 [2024-10-24 00:46:20,365 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 00:46:20,366 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 00:46:20,366 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 00:46:20,366 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 00:46:20,380 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:46:20" (1/1) ... [2024-10-24 00:46:20,381 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:46:20" (1/1) ... [2024-10-24 00:46:20,386 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:46:20" (1/1) ... [2024-10-24 00:46:20,419 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4]. 29 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0]. [2024-10-24 00:46:20,419 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:46:20" (1/1) ... [2024-10-24 00:46:20,419 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:46:20" (1/1) ... [2024-10-24 00:46:20,443 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:46:20" (1/1) ... [2024-10-24 00:46:20,459 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:46:20" (1/1) ... [2024-10-24 00:46:20,464 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:46:20" (1/1) ... [2024-10-24 00:46:20,473 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:46:20" (1/1) ... [2024-10-24 00:46:20,480 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 00:46:20,481 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 00:46:20,481 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 00:46:20,481 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 00:46:20,482 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:46:20" (1/1) ... [2024-10-24 00:46:20,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 00:46:20,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:46:20,568 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) [2024-10-24 00:46:20,577 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 00:46:20,626 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-10-24 00:46:20,626 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-10-24 00:46:20,626 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-10-24 00:46:20,627 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-10-24 00:46:20,627 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-10-24 00:46:20,627 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-10-24 00:46:20,627 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-10-24 00:46:20,628 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-10-24 00:46:20,629 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-10-24 00:46:20,629 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-10-24 00:46:20,629 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-10-24 00:46:20,630 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-10-24 00:46:20,630 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-10-24 00:46:20,630 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-10-24 00:46:20,631 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-10-24 00:46:20,631 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-10-24 00:46:20,631 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2024-10-24 00:46:20,631 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2024-10-24 00:46:20,631 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-10-24 00:46:20,632 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-10-24 00:46:20,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 00:46:20,632 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-10-24 00:46:20,633 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-10-24 00:46:20,633 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-10-24 00:46:20,633 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-10-24 00:46:20,633 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-10-24 00:46:20,633 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-10-24 00:46:20,633 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-10-24 00:46:20,633 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-10-24 00:46:20,634 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-10-24 00:46:20,634 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-10-24 00:46:20,635 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-10-24 00:46:20,635 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-10-24 00:46:20,635 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-10-24 00:46:20,636 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-10-24 00:46:20,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 00:46:20,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-24 00:46:20,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-24 00:46:20,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-24 00:46:20,636 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-10-24 00:46:20,636 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-10-24 00:46:20,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 00:46:20,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 00:46:20,821 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 00:46:20,824 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 00:46:21,577 INFO L? ?]: Removed 436 outVars from TransFormulas that were not future-live. [2024-10-24 00:46:21,577 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 00:46:21,639 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 00:46:21,639 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 00:46:21,640 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:46:21 BoogieIcfgContainer [2024-10-24 00:46:21,640 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 00:46:21,643 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 00:46:21,643 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 00:46:21,646 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 00:46:21,646 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 12:46:19" (1/3) ... [2024-10-24 00:46:21,647 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@583dfbbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:46:21, skipping insertion in model container [2024-10-24 00:46:21,647 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:46:20" (2/3) ... [2024-10-24 00:46:21,647 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@583dfbbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:46:21, skipping insertion in model container [2024-10-24 00:46:21,647 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:46:21" (3/3) ... [2024-10-24 00:46:21,648 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec1_product22.cil.c [2024-10-24 00:46:21,664 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 00:46:21,664 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 00:46:21,737 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 00:46:21,744 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;@7d119fbe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 00:46:21,744 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 00:46:21,751 INFO L276 IsEmpty]: Start isEmpty. Operand has 294 states, 224 states have (on average 1.59375) internal successors, (357), 228 states have internal predecessors, (357), 50 states have call successors, (50), 18 states have call predecessors, (50), 18 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-10-24 00:46:21,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-10-24 00:46:21,766 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:46:21,767 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] [2024-10-24 00:46:21,767 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:46:21,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:46:21,772 INFO L85 PathProgramCache]: Analyzing trace with hash -73054878, now seen corresponding path program 1 times [2024-10-24 00:46:21,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:46:21,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168431583] [2024-10-24 00:46:21,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:46:21,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:46:21,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:22,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:46:22,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:22,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:46:22,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:22,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:46:22,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:22,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 00:46:22,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:22,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 00:46:22,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:22,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 00:46:22,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:22,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 00:46:22,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:22,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 00:46:22,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:22,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-24 00:46:22,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:22,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 00:46:22,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:22,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-24 00:46:22,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:22,482 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-24 00:46:22,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:46:22,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168431583] [2024-10-24 00:46:22,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168431583] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:46:22,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [903892984] [2024-10-24 00:46:22,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:46:22,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:46:22,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:46:22,487 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 00:46:22,489 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 00:46:22,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:22,738 INFO L255 TraceCheckSpWp]: Trace formula consists of 896 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-24 00:46:22,744 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:46:22,764 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-24 00:46:22,766 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 00:46:22,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [903892984] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:46:22,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 00:46:22,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2024-10-24 00:46:22,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697451932] [2024-10-24 00:46:22,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:46:22,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 00:46:22,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:46:22,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 00:46:22,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 00:46:22,805 INFO L87 Difference]: Start difference. First operand has 294 states, 224 states have (on average 1.59375) internal successors, (357), 228 states have internal predecessors, (357), 50 states have call successors, (50), 18 states have call predecessors, (50), 18 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-24 00:46:22,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:46:22,918 INFO L93 Difference]: Finished difference Result 439 states and 670 transitions. [2024-10-24 00:46:22,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 00:46:22,923 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 83 [2024-10-24 00:46:22,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:46:22,939 INFO L225 Difference]: With dead ends: 439 [2024-10-24 00:46:22,940 INFO L226 Difference]: Without dead ends: 291 [2024-10-24 00:46:22,945 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 00:46:22,949 INFO L432 NwaCegarLoop]: 437 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 00:46:22,950 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 437 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 00:46:22,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2024-10-24 00:46:23,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 291. [2024-10-24 00:46:23,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 222 states have (on average 1.5765765765765767) internal successors, (350), 225 states have internal predecessors, (350), 50 states have call successors, (50), 18 states have call predecessors, (50), 18 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2024-10-24 00:46:23,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 449 transitions. [2024-10-24 00:46:23,011 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 449 transitions. Word has length 83 [2024-10-24 00:46:23,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:46:23,013 INFO L471 AbstractCegarLoop]: Abstraction has 291 states and 449 transitions. [2024-10-24 00:46:23,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-24 00:46:23,013 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 449 transitions. [2024-10-24 00:46:23,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-24 00:46:23,016 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:46:23,017 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] [2024-10-24 00:46:23,034 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-24 00:46:23,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-10-24 00:46:23,218 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:46:23,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:46:23,218 INFO L85 PathProgramCache]: Analyzing trace with hash -1612635618, now seen corresponding path program 1 times [2024-10-24 00:46:23,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:46:23,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318366143] [2024-10-24 00:46:23,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:46:23,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:46:23,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:23,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:46:23,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:23,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:46:23,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:23,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:46:23,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:23,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 00:46:23,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:23,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 00:46:23,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:23,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 00:46:23,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:23,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 00:46:23,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:23,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-24 00:46:23,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:23,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 00:46:23,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:23,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 00:46:23,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:23,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 00:46:23,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:23,515 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-24 00:46:23,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:46:23,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318366143] [2024-10-24 00:46:23,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318366143] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:46:23,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1348636640] [2024-10-24 00:46:23,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:46:23,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:46:23,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:46:23,520 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 00:46:23,522 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-24 00:46:23,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:23,794 INFO L255 TraceCheckSpWp]: Trace formula consists of 897 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-24 00:46:23,801 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:46:23,843 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-24 00:46:23,843 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 00:46:23,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1348636640] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:46:23,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 00:46:23,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-10-24 00:46:23,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051066296] [2024-10-24 00:46:23,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:46:23,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 00:46:23,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:46:23,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 00:46:23,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-24 00:46:23,850 INFO L87 Difference]: Start difference. First operand 291 states and 449 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-24 00:46:23,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:46:23,925 INFO L93 Difference]: Finished difference Result 435 states and 657 transitions. [2024-10-24 00:46:23,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 00:46:23,926 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 84 [2024-10-24 00:46:23,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:46:23,928 INFO L225 Difference]: With dead ends: 435 [2024-10-24 00:46:23,929 INFO L226 Difference]: Without dead ends: 293 [2024-10-24 00:46:23,930 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-24 00:46:23,931 INFO L432 NwaCegarLoop]: 434 mSDtfsCounter, 0 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 867 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 00:46:23,931 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 867 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 00:46:23,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2024-10-24 00:46:23,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 293. [2024-10-24 00:46:23,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 224 states have (on average 1.5714285714285714) internal successors, (352), 227 states have internal predecessors, (352), 50 states have call successors, (50), 18 states have call predecessors, (50), 18 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2024-10-24 00:46:23,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 451 transitions. [2024-10-24 00:46:23,948 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 451 transitions. Word has length 84 [2024-10-24 00:46:23,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:46:23,948 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 451 transitions. [2024-10-24 00:46:23,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-24 00:46:23,949 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 451 transitions. [2024-10-24 00:46:23,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-24 00:46:23,952 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:46:23,953 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] [2024-10-24 00:46:23,968 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-24 00:46:24,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-10-24 00:46:24,157 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:46:24,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:46:24,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1062667974, now seen corresponding path program 1 times [2024-10-24 00:46:24,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:46:24,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666904519] [2024-10-24 00:46:24,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:46:24,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:46:24,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:24,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:46:24,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:24,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:46:24,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:24,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:46:24,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:24,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 00:46:24,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:24,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 00:46:24,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:24,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 00:46:24,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:24,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 00:46:24,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:24,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-24 00:46:24,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:24,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-24 00:46:24,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:24,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 00:46:24,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:24,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-24 00:46:24,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:24,413 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-24 00:46:24,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:46:24,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666904519] [2024-10-24 00:46:24,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666904519] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:46:24,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [766273937] [2024-10-24 00:46:24,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:46:24,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:46:24,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:46:24,419 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 00:46:24,421 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-24 00:46:24,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:24,653 INFO L255 TraceCheckSpWp]: Trace formula consists of 921 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 00:46:24,656 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:46:24,681 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-24 00:46:24,682 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 00:46:24,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [766273937] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:46:24,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 00:46:24,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-10-24 00:46:24,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156234144] [2024-10-24 00:46:24,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:46:24,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 00:46:24,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:46:24,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 00:46:24,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-24 00:46:24,685 INFO L87 Difference]: Start difference. First operand 293 states and 451 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-24 00:46:24,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:46:24,770 INFO L93 Difference]: Finished difference Result 620 states and 968 transitions. [2024-10-24 00:46:24,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 00:46:24,771 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 91 [2024-10-24 00:46:24,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:46:24,776 INFO L225 Difference]: With dead ends: 620 [2024-10-24 00:46:24,777 INFO L226 Difference]: Without dead ends: 349 [2024-10-24 00:46:24,781 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-24 00:46:24,782 INFO L432 NwaCegarLoop]: 444 mSDtfsCounter, 109 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 834 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 00:46:24,782 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 834 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 00:46:24,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2024-10-24 00:46:24,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 344. [2024-10-24 00:46:24,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 264 states have (on average 1.5871212121212122) internal successors, (419), 267 states have internal predecessors, (419), 61 states have call successors, (61), 18 states have call predecessors, (61), 18 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-10-24 00:46:24,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 540 transitions. [2024-10-24 00:46:24,805 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 540 transitions. Word has length 91 [2024-10-24 00:46:24,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:46:24,806 INFO L471 AbstractCegarLoop]: Abstraction has 344 states and 540 transitions. [2024-10-24 00:46:24,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-24 00:46:24,806 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 540 transitions. [2024-10-24 00:46:24,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-10-24 00:46:24,807 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:46:24,808 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] [2024-10-24 00:46:24,822 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-24 00:46:25,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:46:25,009 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:46:25,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:46:25,009 INFO L85 PathProgramCache]: Analyzing trace with hash 893429642, now seen corresponding path program 1 times [2024-10-24 00:46:25,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:46:25,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184473648] [2024-10-24 00:46:25,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:46:25,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:46:25,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:25,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:46:25,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:25,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:46:25,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:25,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:46:25,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:25,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 00:46:25,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:25,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 00:46:25,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:25,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 00:46:25,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:25,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 00:46:25,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:25,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 00:46:25,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:25,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-24 00:46:25,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:25,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 00:46:25,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:25,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 00:46:25,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:25,215 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-24 00:46:25,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:46:25,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184473648] [2024-10-24 00:46:25,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184473648] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:46:25,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [970670198] [2024-10-24 00:46:25,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:46:25,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:46:25,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:46:25,218 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 00:46:25,219 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-24 00:46:25,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:25,438 INFO L255 TraceCheckSpWp]: Trace formula consists of 926 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-24 00:46:25,441 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:46:25,502 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-24 00:46:25,503 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 00:46:25,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [970670198] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:46:25,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 00:46:25,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-10-24 00:46:25,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798038688] [2024-10-24 00:46:25,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:46:25,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 00:46:25,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:46:25,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 00:46:25,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-24 00:46:25,506 INFO L87 Difference]: Start difference. First operand 344 states and 540 transitions. Second operand has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-10-24 00:46:25,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:46:25,618 INFO L93 Difference]: Finished difference Result 683 states and 1074 transitions. [2024-10-24 00:46:25,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 00:46:25,619 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 92 [2024-10-24 00:46:25,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:46:25,622 INFO L225 Difference]: With dead ends: 683 [2024-10-24 00:46:25,622 INFO L226 Difference]: Without dead ends: 346 [2024-10-24 00:46:25,623 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-24 00:46:25,624 INFO L432 NwaCegarLoop]: 426 mSDtfsCounter, 2 mSDsluCounter, 1267 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1693 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 00:46:25,625 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1693 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 00:46:25,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2024-10-24 00:46:25,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2024-10-24 00:46:25,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 265 states have (on average 1.5849056603773586) internal successors, (420), 269 states have internal predecessors, (420), 61 states have call successors, (61), 18 states have call predecessors, (61), 19 states have return successors, (62), 60 states have call predecessors, (62), 60 states have call successors, (62) [2024-10-24 00:46:25,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 543 transitions. [2024-10-24 00:46:25,643 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 543 transitions. Word has length 92 [2024-10-24 00:46:25,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:46:25,643 INFO L471 AbstractCegarLoop]: Abstraction has 346 states and 543 transitions. [2024-10-24 00:46:25,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-10-24 00:46:25,643 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 543 transitions. [2024-10-24 00:46:25,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-10-24 00:46:25,645 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:46:25,646 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] [2024-10-24 00:46:25,665 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-24 00:46:25,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:46:25,847 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:46:25,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:46:25,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1777260197, now seen corresponding path program 1 times [2024-10-24 00:46:25,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:46:25,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516847826] [2024-10-24 00:46:25,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:46:25,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:46:25,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:25,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:46:25,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:25,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:46:25,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:25,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:46:25,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:26,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:46:26,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:26,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-24 00:46:26,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:26,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-24 00:46:26,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:26,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 00:46:26,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:26,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 00:46:26,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:26,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-24 00:46:26,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:26,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 00:46:26,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:26,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 00:46:26,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:26,111 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-24 00:46:26,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:46:26,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516847826] [2024-10-24 00:46:26,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516847826] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:46:26,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1738719498] [2024-10-24 00:46:26,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:46:26,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:46:26,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:46:26,116 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 00:46:26,118 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-24 00:46:26,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:26,347 INFO L255 TraceCheckSpWp]: Trace formula consists of 927 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-24 00:46:26,351 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:46:26,411 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-24 00:46:26,412 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 00:46:26,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1738719498] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:46:26,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 00:46:26,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-10-24 00:46:26,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607228178] [2024-10-24 00:46:26,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:46:26,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 00:46:26,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:46:26,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 00:46:26,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-10-24 00:46:26,416 INFO L87 Difference]: Start difference. First operand 346 states and 543 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, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-10-24 00:46:26,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:46:26,509 INFO L93 Difference]: Finished difference Result 685 states and 1079 transitions. [2024-10-24 00:46:26,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 00:46:26,509 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, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 93 [2024-10-24 00:46:26,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:46:26,512 INFO L225 Difference]: With dead ends: 685 [2024-10-24 00:46:26,512 INFO L226 Difference]: Without dead ends: 348 [2024-10-24 00:46:26,513 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-10-24 00:46:26,514 INFO L432 NwaCegarLoop]: 424 mSDtfsCounter, 2 mSDsluCounter, 1255 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1679 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 00:46:26,514 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1679 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 00:46:26,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2024-10-24 00:46:26,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 348. [2024-10-24 00:46:26,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 266 states have (on average 1.5827067669172932) internal successors, (421), 271 states have internal predecessors, (421), 61 states have call successors, (61), 18 states have call predecessors, (61), 20 states have return successors, (67), 60 states have call predecessors, (67), 60 states have call successors, (67) [2024-10-24 00:46:26,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 549 transitions. [2024-10-24 00:46:26,535 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 549 transitions. Word has length 93 [2024-10-24 00:46:26,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:46:26,536 INFO L471 AbstractCegarLoop]: Abstraction has 348 states and 549 transitions. [2024-10-24 00:46:26,536 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, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-10-24 00:46:26,536 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 549 transitions. [2024-10-24 00:46:26,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-10-24 00:46:26,538 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:46:26,538 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] [2024-10-24 00:46:26,554 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-24 00:46:26,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:46:26,741 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:46:26,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:46:26,741 INFO L85 PathProgramCache]: Analyzing trace with hash 1663533066, now seen corresponding path program 1 times [2024-10-24 00:46:26,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:46:26,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368786668] [2024-10-24 00:46:26,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:46:26,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:46:26,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:26,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:46:26,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:26,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:46:26,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:26,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:46:26,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:26,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:46:26,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:26,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:46:26,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:26,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 00:46:26,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:26,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 00:46:26,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:26,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-24 00:46:26,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:26,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-24 00:46:26,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:26,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 00:46:26,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:26,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 00:46:26,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:26,884 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-24 00:46:26,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:46:26,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368786668] [2024-10-24 00:46:26,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368786668] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:46:26,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:46:26,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 00:46:26,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713581739] [2024-10-24 00:46:26,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:46:26,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 00:46:26,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:46:26,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 00:46:26,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 00:46:26,887 INFO L87 Difference]: Start difference. First operand 348 states and 549 transitions. Second operand has 9 states, 8 states have (on average 7.375) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-10-24 00:46:28,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:46:28,639 INFO L93 Difference]: Finished difference Result 824 states and 1315 transitions. [2024-10-24 00:46:28,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 00:46:28,639 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.375) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 94 [2024-10-24 00:46:28,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:46:28,642 INFO L225 Difference]: With dead ends: 824 [2024-10-24 00:46:28,643 INFO L226 Difference]: Without dead ends: 495 [2024-10-24 00:46:28,644 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-24 00:46:28,644 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 944 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 2436 mSolverCounterSat, 317 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 945 SdHoareTripleChecker+Valid, 1016 SdHoareTripleChecker+Invalid, 2753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 317 IncrementalHoareTripleChecker+Valid, 2436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-24 00:46:28,645 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [945 Valid, 1016 Invalid, 2753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [317 Valid, 2436 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-24 00:46:28,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2024-10-24 00:46:28,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 348. [2024-10-24 00:46:28,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 266 states have (on average 1.5827067669172932) internal successors, (421), 271 states have internal predecessors, (421), 61 states have call successors, (61), 18 states have call predecessors, (61), 20 states have return successors, (66), 60 states have call predecessors, (66), 60 states have call successors, (66) [2024-10-24 00:46:28,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 548 transitions. [2024-10-24 00:46:28,676 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 548 transitions. Word has length 94 [2024-10-24 00:46:28,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:46:28,676 INFO L471 AbstractCegarLoop]: Abstraction has 348 states and 548 transitions. [2024-10-24 00:46:28,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.375) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-10-24 00:46:28,677 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 548 transitions. [2024-10-24 00:46:28,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-24 00:46:28,678 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:46:28,678 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] [2024-10-24 00:46:28,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 00:46:28,678 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:46:28,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:46:28,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1417696057, now seen corresponding path program 2 times [2024-10-24 00:46:28,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:46:28,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840639859] [2024-10-24 00:46:28,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:46:28,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:46:28,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:28,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:46:28,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:28,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:46:28,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:28,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:46:28,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:28,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:46:28,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:28,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:46:28,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:28,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 00:46:28,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:28,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-24 00:46:28,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:28,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-24 00:46:28,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:28,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 00:46:28,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:28,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 00:46:28,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:28,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-24 00:46:28,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:28,857 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-24 00:46:28,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:46:28,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840639859] [2024-10-24 00:46:28,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840639859] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:46:28,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:46:28,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 00:46:28,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915464305] [2024-10-24 00:46:28,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:46:28,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 00:46:28,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:46:28,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 00:46:28,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 00:46:28,860 INFO L87 Difference]: Start difference. First operand 348 states and 548 transitions. Second operand has 9 states, 8 states have (on average 7.5) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-10-24 00:46:30,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:46:30,581 INFO L93 Difference]: Finished difference Result 826 states and 1318 transitions. [2024-10-24 00:46:30,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 00:46:30,582 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.5) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 95 [2024-10-24 00:46:30,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:46:30,584 INFO L225 Difference]: With dead ends: 826 [2024-10-24 00:46:30,585 INFO L226 Difference]: Without dead ends: 497 [2024-10-24 00:46:30,586 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-24 00:46:30,587 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 940 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 2442 mSolverCounterSat, 318 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 941 SdHoareTripleChecker+Valid, 1016 SdHoareTripleChecker+Invalid, 2760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 318 IncrementalHoareTripleChecker+Valid, 2442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-24 00:46:30,587 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [941 Valid, 1016 Invalid, 2760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [318 Valid, 2442 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-24 00:46:30,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2024-10-24 00:46:30,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 350. [2024-10-24 00:46:30,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 267 states have (on average 1.5805243445692885) internal successors, (422), 273 states have internal predecessors, (422), 61 states have call successors, (61), 18 states have call predecessors, (61), 21 states have return successors, (68), 60 states have call predecessors, (68), 60 states have call successors, (68) [2024-10-24 00:46:30,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 551 transitions. [2024-10-24 00:46:30,608 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 551 transitions. Word has length 95 [2024-10-24 00:46:30,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:46:30,608 INFO L471 AbstractCegarLoop]: Abstraction has 350 states and 551 transitions. [2024-10-24 00:46:30,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.5) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-10-24 00:46:30,609 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 551 transitions. [2024-10-24 00:46:30,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-10-24 00:46:30,610 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:46:30,610 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] [2024-10-24 00:46:30,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 00:46:30,611 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:46:30,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:46:30,611 INFO L85 PathProgramCache]: Analyzing trace with hash -435016955, now seen corresponding path program 1 times [2024-10-24 00:46:30,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:46:30,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502529682] [2024-10-24 00:46:30,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:46:30,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:46:30,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:30,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:46:30,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:30,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:46:30,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:30,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:46:30,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:30,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:46:30,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:30,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:46:30,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:30,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:46:30,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:30,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-24 00:46:30,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:30,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-24 00:46:30,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:30,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 00:46:30,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:30,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-24 00:46:30,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:30,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 00:46:30,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:30,816 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-24 00:46:30,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:46:30,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502529682] [2024-10-24 00:46:30,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502529682] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:46:30,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:46:30,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 00:46:30,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551848645] [2024-10-24 00:46:30,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:46:30,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 00:46:30,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:46:30,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 00:46:30,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-10-24 00:46:30,820 INFO L87 Difference]: Start difference. First operand 350 states and 551 transitions. Second operand has 12 states, 11 states have (on average 5.818181818181818) internal successors, (64), 8 states have internal predecessors, (64), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2024-10-24 00:46:33,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:46:33,015 INFO L93 Difference]: Finished difference Result 824 states and 1313 transitions. [2024-10-24 00:46:33,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 00:46:33,015 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.818181818181818) internal successors, (64), 8 states have internal predecessors, (64), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) Word has length 96 [2024-10-24 00:46:33,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:46:33,018 INFO L225 Difference]: With dead ends: 824 [2024-10-24 00:46:33,018 INFO L226 Difference]: Without dead ends: 497 [2024-10-24 00:46:33,019 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-10-24 00:46:33,020 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 944 mSDsluCounter, 1244 mSDsCounter, 0 mSdLazyCounter, 4024 mSolverCounterSat, 323 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 945 SdHoareTripleChecker+Valid, 1409 SdHoareTripleChecker+Invalid, 4347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 323 IncrementalHoareTripleChecker+Valid, 4024 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-24 00:46:33,020 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [945 Valid, 1409 Invalid, 4347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [323 Valid, 4024 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-24 00:46:33,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2024-10-24 00:46:33,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 350. [2024-10-24 00:46:33,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 267 states have (on average 1.5805243445692885) internal successors, (422), 273 states have internal predecessors, (422), 61 states have call successors, (61), 18 states have call predecessors, (61), 21 states have return successors, (67), 60 states have call predecessors, (67), 60 states have call successors, (67) [2024-10-24 00:46:33,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 550 transitions. [2024-10-24 00:46:33,063 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 550 transitions. Word has length 96 [2024-10-24 00:46:33,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:46:33,063 INFO L471 AbstractCegarLoop]: Abstraction has 350 states and 550 transitions. [2024-10-24 00:46:33,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.818181818181818) internal successors, (64), 8 states have internal predecessors, (64), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2024-10-24 00:46:33,063 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 550 transitions. [2024-10-24 00:46:33,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-10-24 00:46:33,065 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:46:33,065 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] [2024-10-24 00:46:33,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 00:46:33,065 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:46:33,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:46:33,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1656391696, now seen corresponding path program 2 times [2024-10-24 00:46:33,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:46:33,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467972188] [2024-10-24 00:46:33,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:46:33,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:46:33,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:33,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:46:33,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:33,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:46:33,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:33,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:46:33,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:33,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:46:33,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:33,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:46:33,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:33,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:46:33,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:33,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 00:46:33,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:33,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-24 00:46:33,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:33,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 00:46:33,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:33,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-24 00:46:33,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:33,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 00:46:33,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:33,228 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-24 00:46:33,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:46:33,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467972188] [2024-10-24 00:46:33,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467972188] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:46:33,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:46:33,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 00:46:33,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764420805] [2024-10-24 00:46:33,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:46:33,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 00:46:33,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:46:33,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 00:46:33,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-10-24 00:46:33,230 INFO L87 Difference]: Start difference. First operand 350 states and 550 transitions. Second operand has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 8 states have internal predecessors, (65), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2024-10-24 00:46:35,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:46:35,234 INFO L93 Difference]: Finished difference Result 826 states and 1319 transitions. [2024-10-24 00:46:35,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 00:46:35,234 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 8 states have internal predecessors, (65), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) Word has length 97 [2024-10-24 00:46:35,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:46:35,238 INFO L225 Difference]: With dead ends: 826 [2024-10-24 00:46:35,238 INFO L226 Difference]: Without dead ends: 499 [2024-10-24 00:46:35,239 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-10-24 00:46:35,239 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 940 mSDsluCounter, 1244 mSDsCounter, 0 mSdLazyCounter, 4060 mSolverCounterSat, 320 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 941 SdHoareTripleChecker+Valid, 1410 SdHoareTripleChecker+Invalid, 4380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 320 IncrementalHoareTripleChecker+Valid, 4060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-24 00:46:35,239 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [941 Valid, 1410 Invalid, 4380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [320 Valid, 4060 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-24 00:46:35,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2024-10-24 00:46:35,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 352. [2024-10-24 00:46:35,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 268 states have (on average 1.578358208955224) internal successors, (423), 275 states have internal predecessors, (423), 61 states have call successors, (61), 18 states have call predecessors, (61), 22 states have return successors, (72), 60 states have call predecessors, (72), 60 states have call successors, (72) [2024-10-24 00:46:35,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 556 transitions. [2024-10-24 00:46:35,261 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 556 transitions. Word has length 97 [2024-10-24 00:46:35,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:46:35,262 INFO L471 AbstractCegarLoop]: Abstraction has 352 states and 556 transitions. [2024-10-24 00:46:35,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 8 states have internal predecessors, (65), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2024-10-24 00:46:35,262 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 556 transitions. [2024-10-24 00:46:35,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-10-24 00:46:35,263 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:46:35,263 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:46:35,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 00:46:35,264 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:46:35,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:46:35,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1002389504, now seen corresponding path program 1 times [2024-10-24 00:46:35,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:46:35,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305201554] [2024-10-24 00:46:35,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:46:35,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:46:35,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:35,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:46:35,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:35,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:46:35,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:35,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:46:35,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:35,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:46:35,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:35,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:46:35,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:35,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:46:35,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:35,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 00:46:35,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:35,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 00:46:35,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:35,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-24 00:46:35,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:35,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-24 00:46:35,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:35,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 00:46:35,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:35,489 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-10-24 00:46:35,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:46:35,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305201554] [2024-10-24 00:46:35,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305201554] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:46:35,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1792900754] [2024-10-24 00:46:35,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:46:35,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:46:35,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:46:35,492 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 00:46:35,497 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-24 00:46:35,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:35,686 INFO L255 TraceCheckSpWp]: Trace formula consists of 932 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 00:46:35,688 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:46:35,721 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-24 00:46:35,721 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 00:46:35,810 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-24 00:46:35,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1792900754] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 00:46:35,811 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 00:46:35,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2024-10-24 00:46:35,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329085834] [2024-10-24 00:46:35,811 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 00:46:35,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-24 00:46:35,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:46:35,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-24 00:46:35,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-10-24 00:46:35,813 INFO L87 Difference]: Start difference. First operand 352 states and 556 transitions. Second operand has 15 states, 14 states have (on average 7.642857142857143) internal successors, (107), 11 states have internal predecessors, (107), 4 states have call successors, (27), 6 states have call predecessors, (27), 3 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2024-10-24 00:46:38,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:46:38,111 INFO L93 Difference]: Finished difference Result 1175 states and 1965 transitions. [2024-10-24 00:46:38,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-24 00:46:38,112 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 7.642857142857143) internal successors, (107), 11 states have internal predecessors, (107), 4 states have call successors, (27), 6 states have call predecessors, (27), 3 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) Word has length 98 [2024-10-24 00:46:38,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:46:38,117 INFO L225 Difference]: With dead ends: 1175 [2024-10-24 00:46:38,117 INFO L226 Difference]: Without dead ends: 849 [2024-10-24 00:46:38,119 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=164, Invalid=828, Unknown=0, NotChecked=0, Total=992 [2024-10-24 00:46:38,120 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 1988 mSDsluCounter, 1462 mSDsCounter, 0 mSdLazyCounter, 4454 mSolverCounterSat, 635 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2005 SdHoareTripleChecker+Valid, 1623 SdHoareTripleChecker+Invalid, 5089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 635 IncrementalHoareTripleChecker+Valid, 4454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-24 00:46:38,120 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2005 Valid, 1623 Invalid, 5089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [635 Valid, 4454 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-24 00:46:38,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 849 states. [2024-10-24 00:46:38,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 849 to 687. [2024-10-24 00:46:38,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 687 states, 539 states have (on average 1.6252319109461966) internal successors, (876), 546 states have internal predecessors, (876), 125 states have call successors, (125), 18 states have call predecessors, (125), 22 states have return successors, (146), 124 states have call predecessors, (146), 124 states have call successors, (146) [2024-10-24 00:46:38,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 687 states to 687 states and 1147 transitions. [2024-10-24 00:46:38,153 INFO L78 Accepts]: Start accepts. Automaton has 687 states and 1147 transitions. Word has length 98 [2024-10-24 00:46:38,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:46:38,155 INFO L471 AbstractCegarLoop]: Abstraction has 687 states and 1147 transitions. [2024-10-24 00:46:38,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 7.642857142857143) internal successors, (107), 11 states have internal predecessors, (107), 4 states have call successors, (27), 6 states have call predecessors, (27), 3 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2024-10-24 00:46:38,155 INFO L276 IsEmpty]: Start isEmpty. Operand 687 states and 1147 transitions. [2024-10-24 00:46:38,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-10-24 00:46:38,158 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:46:38,158 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:46:38,174 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-24 00:46:38,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:46:38,359 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:46:38,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:46:38,360 INFO L85 PathProgramCache]: Analyzing trace with hash -644051853, now seen corresponding path program 1 times [2024-10-24 00:46:38,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:46:38,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711234189] [2024-10-24 00:46:38,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:46:38,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:46:38,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:38,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:46:38,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:38,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:46:38,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:38,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:46:38,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:38,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:46:38,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:38,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:46:38,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:38,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:46:38,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:38,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-24 00:46:38,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:38,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-24 00:46:38,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:38,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 00:46:38,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:38,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-24 00:46:38,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:38,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-24 00:46:38,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:38,473 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-24 00:46:38,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:46:38,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711234189] [2024-10-24 00:46:38,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711234189] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:46:38,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:46:38,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:46:38,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341679225] [2024-10-24 00:46:38,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:46:38,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:46:38,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:46:38,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:46:38,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:46:38,475 INFO L87 Difference]: Start difference. First operand 687 states and 1147 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-24 00:46:39,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:46:39,689 INFO L93 Difference]: Finished difference Result 1770 states and 3024 transitions. [2024-10-24 00:46:39,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:46:39,690 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 102 [2024-10-24 00:46:39,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:46:39,715 INFO L225 Difference]: With dead ends: 1770 [2024-10-24 00:46:39,715 INFO L226 Difference]: Without dead ends: 1151 [2024-10-24 00:46:39,717 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:46:39,718 INFO L432 NwaCegarLoop]: 180 mSDtfsCounter, 1045 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 1425 mSolverCounterSat, 369 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1060 SdHoareTripleChecker+Valid, 772 SdHoareTripleChecker+Invalid, 1794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 369 IncrementalHoareTripleChecker+Valid, 1425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 00:46:39,718 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1060 Valid, 772 Invalid, 1794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [369 Valid, 1425 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 00:46:39,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1151 states. [2024-10-24 00:46:39,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1151 to 999. [2024-10-24 00:46:39,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 999 states, 787 states have (on average 1.636594663278272) internal successors, (1288), 794 states have internal predecessors, (1288), 189 states have call successors, (189), 18 states have call predecessors, (189), 22 states have return successors, (220), 188 states have call predecessors, (220), 188 states have call successors, (220) [2024-10-24 00:46:39,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 999 states to 999 states and 1697 transitions. [2024-10-24 00:46:39,790 INFO L78 Accepts]: Start accepts. Automaton has 999 states and 1697 transitions. Word has length 102 [2024-10-24 00:46:39,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:46:39,791 INFO L471 AbstractCegarLoop]: Abstraction has 999 states and 1697 transitions. [2024-10-24 00:46:39,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-24 00:46:39,791 INFO L276 IsEmpty]: Start isEmpty. Operand 999 states and 1697 transitions. [2024-10-24 00:46:39,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-10-24 00:46:39,795 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:46:39,795 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:46:39,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 00:46:39,796 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:46:39,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:46:39,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1620360160, now seen corresponding path program 1 times [2024-10-24 00:46:39,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:46:39,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3326830] [2024-10-24 00:46:39,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:46:39,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:46:39,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:39,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:46:39,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:39,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:46:39,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:39,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:46:39,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:39,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:46:39,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:39,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:46:39,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:39,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:46:39,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:39,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 00:46:39,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:39,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 00:46:39,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:39,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-24 00:46:39,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:39,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 00:46:39,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:39,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 00:46:39,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:39,903 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-24 00:46:39,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:46:39,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3326830] [2024-10-24 00:46:39,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3326830] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:46:39,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:46:39,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:46:39,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350382818] [2024-10-24 00:46:39,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:46:39,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:46:39,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:46:39,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:46:39,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:46:39,905 INFO L87 Difference]: Start difference. First operand 999 states and 1697 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-24 00:46:41,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:46:41,105 INFO L93 Difference]: Finished difference Result 2539 states and 4372 transitions. [2024-10-24 00:46:41,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:46:41,106 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 103 [2024-10-24 00:46:41,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:46:41,113 INFO L225 Difference]: With dead ends: 2539 [2024-10-24 00:46:41,114 INFO L226 Difference]: Without dead ends: 1658 [2024-10-24 00:46:41,116 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:46:41,117 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 1043 mSDsluCounter, 574 mSDsCounter, 0 mSdLazyCounter, 1432 mSolverCounterSat, 373 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1058 SdHoareTripleChecker+Valid, 747 SdHoareTripleChecker+Invalid, 1805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 373 IncrementalHoareTripleChecker+Valid, 1432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 00:46:41,117 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1058 Valid, 747 Invalid, 1805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [373 Valid, 1432 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 00:46:41,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1658 states. [2024-10-24 00:46:41,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1658 to 1506. [2024-10-24 00:46:41,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1506 states, 1199 states have (on average 1.6413678065054211) internal successors, (1968), 1206 states have internal predecessors, (1968), 284 states have call successors, (284), 18 states have call predecessors, (284), 22 states have return successors, (315), 283 states have call predecessors, (315), 283 states have call successors, (315) [2024-10-24 00:46:41,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1506 states to 1506 states and 2567 transitions. [2024-10-24 00:46:41,171 INFO L78 Accepts]: Start accepts. Automaton has 1506 states and 2567 transitions. Word has length 103 [2024-10-24 00:46:41,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:46:41,171 INFO L471 AbstractCegarLoop]: Abstraction has 1506 states and 2567 transitions. [2024-10-24 00:46:41,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-24 00:46:41,172 INFO L276 IsEmpty]: Start isEmpty. Operand 1506 states and 2567 transitions. [2024-10-24 00:46:41,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-10-24 00:46:41,177 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:46:41,177 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:46:41,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 00:46:41,177 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:46:41,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:46:41,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1290546949, now seen corresponding path program 1 times [2024-10-24 00:46:41,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:46:41,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967873261] [2024-10-24 00:46:41,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:46:41,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:46:41,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:41,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:46:41,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:41,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:46:41,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:41,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:46:41,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:41,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:46:41,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:41,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:46:41,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:41,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:46:41,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:41,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-24 00:46:41,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:41,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 00:46:41,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:41,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 00:46:41,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:41,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 00:46:41,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:41,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 00:46:41,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:41,269 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-24 00:46:41,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:46:41,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967873261] [2024-10-24 00:46:41,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967873261] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:46:41,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:46:41,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:46:41,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653212510] [2024-10-24 00:46:41,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:46:41,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:46:41,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:46:41,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:46:41,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:46:41,270 INFO L87 Difference]: Start difference. First operand 1506 states and 2567 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-24 00:46:42,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:46:42,430 INFO L93 Difference]: Finished difference Result 3685 states and 6397 transitions. [2024-10-24 00:46:42,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:46:42,430 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 104 [2024-10-24 00:46:42,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:46:42,441 INFO L225 Difference]: With dead ends: 3685 [2024-10-24 00:46:42,442 INFO L226 Difference]: Without dead ends: 2425 [2024-10-24 00:46:42,445 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:46:42,446 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 1041 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 1392 mSolverCounterSat, 370 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1056 SdHoareTripleChecker+Valid, 738 SdHoareTripleChecker+Invalid, 1762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 370 IncrementalHoareTripleChecker+Valid, 1392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 00:46:42,446 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1056 Valid, 738 Invalid, 1762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [370 Valid, 1392 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 00:46:42,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2425 states. [2024-10-24 00:46:42,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2425 to 2273. [2024-10-24 00:46:42,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2273 states, 1843 states have (on average 1.6456863809007054) internal successors, (3033), 1850 states have internal predecessors, (3033), 407 states have call successors, (407), 18 states have call predecessors, (407), 22 states have return successors, (454), 406 states have call predecessors, (454), 406 states have call successors, (454) [2024-10-24 00:46:42,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2273 states to 2273 states and 3894 transitions. [2024-10-24 00:46:42,532 INFO L78 Accepts]: Start accepts. Automaton has 2273 states and 3894 transitions. Word has length 104 [2024-10-24 00:46:42,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:46:42,533 INFO L471 AbstractCegarLoop]: Abstraction has 2273 states and 3894 transitions. [2024-10-24 00:46:42,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-24 00:46:42,533 INFO L276 IsEmpty]: Start isEmpty. Operand 2273 states and 3894 transitions. [2024-10-24 00:46:42,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-10-24 00:46:42,539 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:46:42,539 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:46:42,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 00:46:42,540 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:46:42,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:46:42,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1573035199, now seen corresponding path program 1 times [2024-10-24 00:46:42,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:46:42,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667005128] [2024-10-24 00:46:42,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:46:42,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:46:42,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:42,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:46:42,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:42,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:46:42,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:42,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:46:42,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:42,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:46:42,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:42,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:46:42,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:42,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:46:42,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:42,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-24 00:46:42,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:42,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 00:46:42,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:42,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 00:46:42,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:42,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 00:46:42,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:42,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-24 00:46:42,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:42,629 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-24 00:46:42,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:46:42,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667005128] [2024-10-24 00:46:42,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667005128] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:46:42,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:46:42,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:46:42,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826806087] [2024-10-24 00:46:42,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:46:42,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:46:42,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:46:42,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:46:42,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:46:42,631 INFO L87 Difference]: Start difference. First operand 2273 states and 3894 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-24 00:46:43,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:46:43,823 INFO L93 Difference]: Finished difference Result 5467 states and 9555 transitions. [2024-10-24 00:46:43,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:46:43,826 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 105 [2024-10-24 00:46:43,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:46:43,842 INFO L225 Difference]: With dead ends: 5467 [2024-10-24 00:46:43,842 INFO L226 Difference]: Without dead ends: 3649 [2024-10-24 00:46:43,849 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:46:43,850 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 1039 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 1406 mSolverCounterSat, 369 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1054 SdHoareTripleChecker+Valid, 741 SdHoareTripleChecker+Invalid, 1775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 369 IncrementalHoareTripleChecker+Valid, 1406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 00:46:43,850 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1054 Valid, 741 Invalid, 1775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [369 Valid, 1406 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 00:46:43,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3649 states. [2024-10-24 00:46:44,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3649 to 3497. [2024-10-24 00:46:44,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3497 states, 2888 states have (on average 1.6485457063711912) internal successors, (4761), 2895 states have internal predecessors, (4761), 586 states have call successors, (586), 18 states have call predecessors, (586), 22 states have return successors, (659), 585 states have call predecessors, (659), 585 states have call successors, (659) [2024-10-24 00:46:44,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3497 states to 3497 states and 6006 transitions. [2024-10-24 00:46:44,027 INFO L78 Accepts]: Start accepts. Automaton has 3497 states and 6006 transitions. Word has length 105 [2024-10-24 00:46:44,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:46:44,027 INFO L471 AbstractCegarLoop]: Abstraction has 3497 states and 6006 transitions. [2024-10-24 00:46:44,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-24 00:46:44,028 INFO L276 IsEmpty]: Start isEmpty. Operand 3497 states and 6006 transitions. [2024-10-24 00:46:44,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-10-24 00:46:44,036 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:46:44,037 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:46:44,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 00:46:44,037 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:46:44,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:46:44,038 INFO L85 PathProgramCache]: Analyzing trace with hash -1757775191, now seen corresponding path program 1 times [2024-10-24 00:46:44,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:46:44,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712019311] [2024-10-24 00:46:44,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:46:44,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:46:44,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:44,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:46:44,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:44,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:46:44,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:44,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:46:44,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:44,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:46:44,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:44,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:46:44,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:44,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:46:44,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:44,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-24 00:46:44,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:44,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-24 00:46:44,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:44,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 00:46:44,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:44,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 00:46:44,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:44,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 00:46:44,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:44,151 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-24 00:46:44,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:46:44,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712019311] [2024-10-24 00:46:44,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712019311] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:46:44,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:46:44,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:46:44,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550165022] [2024-10-24 00:46:44,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:46:44,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:46:44,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:46:44,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:46:44,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:46:44,154 INFO L87 Difference]: Start difference. First operand 3497 states and 6006 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-24 00:46:45,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:46:45,336 INFO L93 Difference]: Finished difference Result 8446 states and 14795 transitions. [2024-10-24 00:46:45,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:46:45,336 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 106 [2024-10-24 00:46:45,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:46:45,360 INFO L225 Difference]: With dead ends: 8446 [2024-10-24 00:46:45,360 INFO L226 Difference]: Without dead ends: 5707 [2024-10-24 00:46:45,367 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:46:45,368 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 1037 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 1426 mSolverCounterSat, 369 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1052 SdHoareTripleChecker+Valid, 777 SdHoareTripleChecker+Invalid, 1795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 369 IncrementalHoareTripleChecker+Valid, 1426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 00:46:45,368 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1052 Valid, 777 Invalid, 1795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [369 Valid, 1426 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 00:46:45,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5707 states. [2024-10-24 00:46:45,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5707 to 5555. [2024-10-24 00:46:45,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5555 states, 4570 states have (on average 1.637636761487965) internal successors, (7484), 4577 states have internal predecessors, (7484), 962 states have call successors, (962), 18 states have call predecessors, (962), 22 states have return successors, (1079), 961 states have call predecessors, (1079), 961 states have call successors, (1079) [2024-10-24 00:46:45,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5555 states to 5555 states and 9525 transitions. [2024-10-24 00:46:45,566 INFO L78 Accepts]: Start accepts. Automaton has 5555 states and 9525 transitions. Word has length 106 [2024-10-24 00:46:45,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:46:45,567 INFO L471 AbstractCegarLoop]: Abstraction has 5555 states and 9525 transitions. [2024-10-24 00:46:45,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-24 00:46:45,567 INFO L276 IsEmpty]: Start isEmpty. Operand 5555 states and 9525 transitions. [2024-10-24 00:46:45,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-10-24 00:46:45,577 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:46:45,577 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:46:45,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 00:46:45,578 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:46:45,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:46:45,578 INFO L85 PathProgramCache]: Analyzing trace with hash 308783387, now seen corresponding path program 1 times [2024-10-24 00:46:45,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:46:45,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253948785] [2024-10-24 00:46:45,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:46:45,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:46:45,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:45,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:46:45,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:45,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:46:45,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:45,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:46:45,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:45,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:46:45,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:45,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:46:45,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:45,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:46:45,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:45,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-24 00:46:45,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:45,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-24 00:46:45,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:45,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 00:46:45,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:45,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 00:46:45,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:45,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-24 00:46:45,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:45,658 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-24 00:46:45,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:46:45,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253948785] [2024-10-24 00:46:45,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253948785] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:46:45,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:46:45,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:46:45,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500373092] [2024-10-24 00:46:45,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:46:45,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:46:45,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:46:45,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:46:45,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:46:45,660 INFO L87 Difference]: Start difference. First operand 5555 states and 9525 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-24 00:46:46,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:46:46,928 INFO L93 Difference]: Finished difference Result 13807 states and 24152 transitions. [2024-10-24 00:46:46,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:46:46,928 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 107 [2024-10-24 00:46:46,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:46:46,972 INFO L225 Difference]: With dead ends: 13807 [2024-10-24 00:46:46,973 INFO L226 Difference]: Without dead ends: 9396 [2024-10-24 00:46:46,988 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:46:46,989 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 1035 mSDsluCounter, 578 mSDsCounter, 0 mSdLazyCounter, 1436 mSolverCounterSat, 373 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1050 SdHoareTripleChecker+Valid, 752 SdHoareTripleChecker+Invalid, 1809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 373 IncrementalHoareTripleChecker+Valid, 1436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 00:46:46,989 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1050 Valid, 752 Invalid, 1809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [373 Valid, 1436 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 00:46:46,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9396 states. [2024-10-24 00:46:47,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9396 to 9244. [2024-10-24 00:46:47,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9244 states, 7653 states have (on average 1.6351757480726512) internal successors, (12514), 7660 states have internal predecessors, (12514), 1568 states have call successors, (1568), 18 states have call predecessors, (1568), 22 states have return successors, (1763), 1567 states have call predecessors, (1763), 1567 states have call successors, (1763) [2024-10-24 00:46:47,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9244 states to 9244 states and 15845 transitions. [2024-10-24 00:46:47,385 INFO L78 Accepts]: Start accepts. Automaton has 9244 states and 15845 transitions. Word has length 107 [2024-10-24 00:46:47,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:46:47,386 INFO L471 AbstractCegarLoop]: Abstraction has 9244 states and 15845 transitions. [2024-10-24 00:46:47,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-24 00:46:47,387 INFO L276 IsEmpty]: Start isEmpty. Operand 9244 states and 15845 transitions. [2024-10-24 00:46:47,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-10-24 00:46:47,400 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:46:47,400 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:46:47,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 00:46:47,401 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:46:47,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:46:47,401 INFO L85 PathProgramCache]: Analyzing trace with hash -48347429, now seen corresponding path program 1 times [2024-10-24 00:46:47,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:46:47,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355073310] [2024-10-24 00:46:47,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:46:47,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:46:47,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:47,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:46:47,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:47,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:46:47,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:47,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:46:47,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:47,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:46:47,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:47,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:46:47,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:47,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:46:47,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:47,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 00:46:47,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:47,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-24 00:46:47,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:47,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 00:46:47,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:47,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 00:46:47,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:47,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 00:46:47,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:47,509 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-24 00:46:47,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:46:47,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355073310] [2024-10-24 00:46:47,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355073310] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:46:47,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:46:47,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:46:47,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767784091] [2024-10-24 00:46:47,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:46:47,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:46:47,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:46:47,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:46:47,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:46:47,510 INFO L87 Difference]: Start difference. First operand 9244 states and 15845 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-24 00:46:48,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:46:48,840 INFO L93 Difference]: Finished difference Result 23999 states and 41916 transitions. [2024-10-24 00:46:48,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:46:48,840 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 108 [2024-10-24 00:46:48,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:46:48,899 INFO L225 Difference]: With dead ends: 23999 [2024-10-24 00:46:48,900 INFO L226 Difference]: Without dead ends: 16356 [2024-10-24 00:46:48,924 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:46:48,925 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 1033 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 1417 mSolverCounterSat, 374 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1048 SdHoareTripleChecker+Valid, 778 SdHoareTripleChecker+Invalid, 1791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 374 IncrementalHoareTripleChecker+Valid, 1417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 00:46:48,925 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1048 Valid, 778 Invalid, 1791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [374 Valid, 1417 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 00:46:48,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16356 states. [2024-10-24 00:46:49,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16356 to 16204. [2024-10-24 00:46:49,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16204 states, 13410 states have (on average 1.6261744966442953) internal successors, (21807), 13417 states have internal predecessors, (21807), 2771 states have call successors, (2771), 18 states have call predecessors, (2771), 22 states have return successors, (3110), 2770 states have call predecessors, (3110), 2770 states have call successors, (3110) [2024-10-24 00:46:49,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16204 states to 16204 states and 27688 transitions. [2024-10-24 00:46:49,557 INFO L78 Accepts]: Start accepts. Automaton has 16204 states and 27688 transitions. Word has length 108 [2024-10-24 00:46:49,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:46:49,558 INFO L471 AbstractCegarLoop]: Abstraction has 16204 states and 27688 transitions. [2024-10-24 00:46:49,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-24 00:46:49,558 INFO L276 IsEmpty]: Start isEmpty. Operand 16204 states and 27688 transitions. [2024-10-24 00:46:49,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-10-24 00:46:49,575 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:46:49,576 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:46:49,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-24 00:46:49,576 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:46:49,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:46:49,576 INFO L85 PathProgramCache]: Analyzing trace with hash 451466458, now seen corresponding path program 1 times [2024-10-24 00:46:49,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:46:49,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861582060] [2024-10-24 00:46:49,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:46:49,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:46:49,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:49,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:46:49,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:49,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:46:49,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:49,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:46:49,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:49,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:46:49,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:49,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:46:49,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:49,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:46:49,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:49,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 00:46:49,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:49,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 00:46:49,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:49,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-24 00:46:49,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:49,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-24 00:46:49,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:49,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 00:46:49,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:49,679 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-24 00:46:49,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:46:49,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861582060] [2024-10-24 00:46:49,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861582060] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:46:49,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:46:49,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:46:49,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049817940] [2024-10-24 00:46:49,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:46:49,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:46:49,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:46:49,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:46:49,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:46:49,680 INFO L87 Difference]: Start difference. First operand 16204 states and 27688 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-24 00:46:51,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:46:51,524 INFO L93 Difference]: Finished difference Result 42974 states and 74928 transitions. [2024-10-24 00:46:51,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:46:51,525 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 109 [2024-10-24 00:46:51,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:46:51,623 INFO L225 Difference]: With dead ends: 42974 [2024-10-24 00:46:51,623 INFO L226 Difference]: Without dead ends: 29019 [2024-10-24 00:46:51,658 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:46:51,660 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 1031 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 1400 mSolverCounterSat, 378 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1046 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 1778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 378 IncrementalHoareTripleChecker+Valid, 1400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 00:46:51,660 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1046 Valid, 739 Invalid, 1778 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [378 Valid, 1400 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 00:46:51,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29019 states. [2024-10-24 00:46:52,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29019 to 28867. [2024-10-24 00:46:52,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28867 states, 24034 states have (on average 1.6224099192810186) internal successors, (38993), 24041 states have internal predecessors, (38993), 4810 states have call successors, (4810), 18 states have call predecessors, (4810), 22 states have return successors, (5423), 4809 states have call predecessors, (5423), 4809 states have call successors, (5423) [2024-10-24 00:46:52,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28867 states to 28867 states and 49226 transitions. [2024-10-24 00:46:52,590 INFO L78 Accepts]: Start accepts. Automaton has 28867 states and 49226 transitions. Word has length 109 [2024-10-24 00:46:52,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:46:52,590 INFO L471 AbstractCegarLoop]: Abstraction has 28867 states and 49226 transitions. [2024-10-24 00:46:52,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-24 00:46:52,591 INFO L276 IsEmpty]: Start isEmpty. Operand 28867 states and 49226 transitions. [2024-10-24 00:46:52,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-10-24 00:46:52,607 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:46:52,608 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:46:52,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-24 00:46:52,608 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:46:52,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:46:52,608 INFO L85 PathProgramCache]: Analyzing trace with hash -421998311, now seen corresponding path program 1 times [2024-10-24 00:46:52,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:46:52,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691795804] [2024-10-24 00:46:52,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:46:52,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:46:52,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:52,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:46:52,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:52,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:46:52,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:52,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:46:52,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:52,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:46:52,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:52,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:46:52,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:52,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:46:52,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:52,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 00:46:52,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:52,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 00:46:52,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:52,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-24 00:46:52,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:52,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 00:46:52,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:52,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 00:46:52,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:52,686 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-24 00:46:52,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:46:52,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691795804] [2024-10-24 00:46:52,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691795804] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:46:52,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:46:52,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:46:52,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495975103] [2024-10-24 00:46:52,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:46:52,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:46:52,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:46:52,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:46:52,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:46:52,687 INFO L87 Difference]: Start difference. First operand 28867 states and 49226 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-24 00:46:55,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:46:55,247 INFO L93 Difference]: Finished difference Result 78746 states and 136487 transitions. [2024-10-24 00:46:55,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:46:55,247 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 110 [2024-10-24 00:46:55,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:46:55,588 INFO L225 Difference]: With dead ends: 78746 [2024-10-24 00:46:55,588 INFO L226 Difference]: Without dead ends: 52907 [2024-10-24 00:46:55,649 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:46:55,649 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 1029 mSDsluCounter, 581 mSDsCounter, 0 mSdLazyCounter, 1400 mSolverCounterSat, 377 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1044 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 1777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 377 IncrementalHoareTripleChecker+Valid, 1400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-24 00:46:55,650 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1044 Valid, 750 Invalid, 1777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [377 Valid, 1400 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-24 00:46:55,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52907 states. [2024-10-24 00:46:57,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52907 to 52755. [2024-10-24 00:46:57,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52755 states, 44207 states have (on average 1.61745877349741) internal successors, (71503), 44214 states have internal predecessors, (71503), 8525 states have call successors, (8525), 18 states have call predecessors, (8525), 22 states have return successors, (9670), 8524 states have call predecessors, (9670), 8524 states have call successors, (9670) [2024-10-24 00:46:58,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52755 states to 52755 states and 89698 transitions. [2024-10-24 00:46:58,163 INFO L78 Accepts]: Start accepts. Automaton has 52755 states and 89698 transitions. Word has length 110 [2024-10-24 00:46:58,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:46:58,163 INFO L471 AbstractCegarLoop]: Abstraction has 52755 states and 89698 transitions. [2024-10-24 00:46:58,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-24 00:46:58,164 INFO L276 IsEmpty]: Start isEmpty. Operand 52755 states and 89698 transitions. [2024-10-24 00:46:58,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-24 00:46:58,190 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:46:58,191 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:46:58,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-24 00:46:58,191 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:46:58,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:46:58,191 INFO L85 PathProgramCache]: Analyzing trace with hash -456977830, now seen corresponding path program 1 times [2024-10-24 00:46:58,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:46:58,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429742957] [2024-10-24 00:46:58,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:46:58,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:46:58,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:58,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:46:58,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:58,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:46:58,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:58,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:46:58,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:58,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:46:58,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:58,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:46:58,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:58,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:46:58,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:58,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-24 00:46:58,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:58,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-24 00:46:58,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:58,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-24 00:46:58,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:58,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 00:46:58,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:58,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-24 00:46:58,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:46:58,305 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-24 00:46:58,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:46:58,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429742957] [2024-10-24 00:46:58,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429742957] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:46:58,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:46:58,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:46:58,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534356162] [2024-10-24 00:46:58,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:46:58,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:46:58,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:46:58,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:46:58,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:46:58,308 INFO L87 Difference]: Start difference. First operand 52755 states and 89698 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-24 00:47:01,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:47:01,516 INFO L93 Difference]: Finished difference Result 98521 states and 171192 transitions. [2024-10-24 00:47:01,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:47:01,517 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 111 [2024-10-24 00:47:01,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:47:01,907 INFO L225 Difference]: With dead ends: 98521 [2024-10-24 00:47:01,907 INFO L226 Difference]: Without dead ends: 98379 [2024-10-24 00:47:01,942 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:47:01,943 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 1024 mSDsluCounter, 581 mSDsCounter, 0 mSdLazyCounter, 1424 mSolverCounterSat, 368 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1038 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 1792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 368 IncrementalHoareTripleChecker+Valid, 1424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 00:47:01,943 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1038 Valid, 754 Invalid, 1792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [368 Valid, 1424 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 00:47:02,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98379 states. [2024-10-24 00:47:05,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98379 to 98227. [2024-10-24 00:47:05,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98227 states, 82880 states have (on average 1.6111486486486486) internal successors, (133532), 82887 states have internal predecessors, (133532), 15324 states have call successors, (15324), 18 states have call predecessors, (15324), 22 states have return successors, (17515), 15323 states have call predecessors, (17515), 15323 states have call successors, (17515) [2024-10-24 00:47:05,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98227 states to 98227 states and 166371 transitions. [2024-10-24 00:47:05,852 INFO L78 Accepts]: Start accepts. Automaton has 98227 states and 166371 transitions. Word has length 111 [2024-10-24 00:47:05,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:47:05,852 INFO L471 AbstractCegarLoop]: Abstraction has 98227 states and 166371 transitions. [2024-10-24 00:47:05,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-24 00:47:05,853 INFO L276 IsEmpty]: Start isEmpty. Operand 98227 states and 166371 transitions. [2024-10-24 00:47:05,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-10-24 00:47:05,871 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:47:05,871 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:47:05,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-24 00:47:05,872 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:47:05,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:47:05,872 INFO L85 PathProgramCache]: Analyzing trace with hash -222087718, now seen corresponding path program 1 times [2024-10-24 00:47:05,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:47:05,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791548924] [2024-10-24 00:47:05,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:47:05,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:47:05,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:47:06,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:47:06,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:47:06,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:47:06,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:47:06,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:47:06,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:47:06,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:47:06,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:47:06,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:47:06,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:47:06,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:47:06,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:47:06,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-24 00:47:06,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:47:06,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 00:47:06,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:47:06,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 00:47:06,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:47:06,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-24 00:47:06,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:47:06,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 00:47:06,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:47:06,226 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-24 00:47:06,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:47:06,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791548924] [2024-10-24 00:47:06,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791548924] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:47:06,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:47:06,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-10-24 00:47:06,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226711479] [2024-10-24 00:47:06,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:47:06,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-24 00:47:06,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:47:06,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-24 00:47:06,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2024-10-24 00:47:06,229 INFO L87 Difference]: Start difference. First operand 98227 states and 166371 transitions. Second operand has 16 states, 15 states have (on average 5.0) internal successors, (75), 10 states have internal predecessors, (75), 5 states have call successors, (13), 7 states have call predecessors, (13), 3 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) [2024-10-24 00:47:14,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:47:14,629 INFO L93 Difference]: Finished difference Result 196173 states and 344263 transitions. [2024-10-24 00:47:14,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-10-24 00:47:14,630 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.0) internal successors, (75), 10 states have internal predecessors, (75), 5 states have call successors, (13), 7 states have call predecessors, (13), 3 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) Word has length 112 [2024-10-24 00:47:14,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:47:15,700 INFO L225 Difference]: With dead ends: 196173 [2024-10-24 00:47:15,700 INFO L226 Difference]: Without dead ends: 196036 [2024-10-24 00:47:15,789 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 951 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=648, Invalid=2544, Unknown=0, NotChecked=0, Total=3192 [2024-10-24 00:47:15,789 INFO L432 NwaCegarLoop]: 217 mSDtfsCounter, 3079 mSDsluCounter, 2095 mSDsCounter, 0 mSdLazyCounter, 7143 mSolverCounterSat, 944 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3090 SdHoareTripleChecker+Valid, 2312 SdHoareTripleChecker+Invalid, 8087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 944 IncrementalHoareTripleChecker+Valid, 7143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-10-24 00:47:15,790 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3090 Valid, 2312 Invalid, 8087 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [944 Valid, 7143 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-10-24 00:47:15,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196036 states. [2024-10-24 00:47:22,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196036 to 195609. [2024-10-24 00:47:23,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195609 states, 165104 states have (on average 1.6119900184126368) internal successors, (266146), 165007 states have internal predecessors, (266146), 30449 states have call successors, (30449), 47 states have call predecessors, (30449), 55 states have return successors, (38111), 30560 states have call predecessors, (38111), 30446 states have call successors, (38111) [2024-10-24 00:47:24,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195609 states to 195609 states and 334706 transitions. [2024-10-24 00:47:24,211 INFO L78 Accepts]: Start accepts. Automaton has 195609 states and 334706 transitions. Word has length 112 [2024-10-24 00:47:24,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:47:24,211 INFO L471 AbstractCegarLoop]: Abstraction has 195609 states and 334706 transitions. [2024-10-24 00:47:24,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.0) internal successors, (75), 10 states have internal predecessors, (75), 5 states have call successors, (13), 7 states have call predecessors, (13), 3 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) [2024-10-24 00:47:24,211 INFO L276 IsEmpty]: Start isEmpty. Operand 195609 states and 334706 transitions. [2024-10-24 00:47:24,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-10-24 00:47:24,243 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:47:24,243 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:47:24,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-24 00:47:24,244 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:47:24,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:47:24,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1194496571, now seen corresponding path program 1 times [2024-10-24 00:47:24,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:47:24,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905263578] [2024-10-24 00:47:24,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:47:24,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:47:24,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:47:24,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:47:24,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:47:24,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:47:24,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:47:24,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:47:24,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:47:24,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:47:24,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:47:24,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:47:24,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:47:24,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:47:24,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:47:24,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-24 00:47:24,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:47:24,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 00:47:24,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:47:24,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 00:47:24,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:47:24,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 00:47:24,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:47:24,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-24 00:47:24,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:47:24,426 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-24 00:47:24,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:47:24,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905263578] [2024-10-24 00:47:24,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905263578] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:47:24,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:47:24,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 00:47:24,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103144968] [2024-10-24 00:47:24,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:47:24,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 00:47:24,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:47:24,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 00:47:24,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-10-24 00:47:24,429 INFO L87 Difference]: Start difference. First operand 195609 states and 334706 transitions. Second operand has 12 states, 12 states have (on average 6.333333333333333) internal successors, (76), 6 states have internal predecessors, (76), 4 states have call successors, (13), 7 states have call predecessors, (13), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-10-24 00:47:31,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:47:31,060 INFO L93 Difference]: Finished difference Result 197054 states and 343506 transitions. [2024-10-24 00:47:31,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-24 00:47:31,065 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.333333333333333) internal successors, (76), 6 states have internal predecessors, (76), 4 states have call successors, (13), 7 states have call predecessors, (13), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 113 [2024-10-24 00:47:31,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:47:31,875 INFO L225 Difference]: With dead ends: 197054 [2024-10-24 00:47:31,875 INFO L226 Difference]: Without dead ends: 196087 [2024-10-24 00:47:31,967 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=211, Invalid=601, Unknown=0, NotChecked=0, Total=812 [2024-10-24 00:47:31,968 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 2099 mSDsluCounter, 1074 mSDsCounter, 0 mSdLazyCounter, 3414 mSolverCounterSat, 711 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2114 SdHoareTripleChecker+Valid, 1230 SdHoareTripleChecker+Invalid, 4125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 711 IncrementalHoareTripleChecker+Valid, 3414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-24 00:47:31,968 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2114 Valid, 1230 Invalid, 4125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [711 Valid, 3414 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-24 00:47:32,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196087 states.