./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec4_product33.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/email_spec4_product33.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 7d58750164873693a8e41f270259eb299f067753793be4bdf6f5449bb7376f85 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 14:12:20,161 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 14:12:20,219 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 14:12:20,224 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 14:12:20,225 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 14:12:20,247 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 14:12:20,247 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 14:12:20,248 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 14:12:20,248 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 14:12:20,249 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 14:12:20,250 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 14:12:20,250 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 14:12:20,251 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 14:12:20,251 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 14:12:20,251 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 14:12:20,253 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 14:12:20,253 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 14:12:20,253 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 14:12:20,253 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 14:12:20,254 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 14:12:20,254 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 14:12:20,256 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 14:12:20,256 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 14:12:20,257 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 14:12:20,257 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 14:12:20,257 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 14:12:20,257 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 14:12:20,257 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 14:12:20,258 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 14:12:20,258 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 14:12:20,258 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 14:12:20,258 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 14:12:20,258 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:12:20,258 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 14:12:20,258 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 14:12:20,258 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 14:12:20,259 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 14:12:20,259 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 14:12:20,259 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 14:12:20,259 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 14:12:20,259 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 14:12:20,260 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 14:12:20,261 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7d58750164873693a8e41f270259eb299f067753793be4bdf6f5449bb7376f85 [2024-11-18 14:12:20,526 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 14:12:20,551 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 14:12:20,554 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 14:12:20,555 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 14:12:20,556 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 14:12:20,557 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec4_product33.cil.c [2024-11-18 14:12:21,896 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 14:12:22,222 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 14:12:22,223 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec4_product33.cil.c [2024-11-18 14:12:22,241 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0aeb6565b/d336d2921f40432c890d148ffa0ab0a3/FLAG71b5d3006 [2024-11-18 14:12:22,527 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0aeb6565b/d336d2921f40432c890d148ffa0ab0a3 [2024-11-18 14:12:22,531 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 14:12:22,532 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 14:12:22,533 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 14:12:22,533 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 14:12:22,540 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 14:12:22,542 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:12:22" (1/1) ... [2024-11-18 14:12:22,544 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11648ff2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:12:22, skipping insertion in model container [2024-11-18 14:12:22,544 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:12:22" (1/1) ... [2024-11-18 14:12:22,603 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 14:12:22,892 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec4_product33.cil.c[11229,11242] [2024-11-18 14:12:23,108 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:12:23,118 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 14:12:23,126 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [48] [2024-11-18 14:12:23,127 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [414] [2024-11-18 14:12:23,128 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [423] [2024-11-18 14:12:23,128 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [750] [2024-11-18 14:12:23,128 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [969] [2024-11-18 14:12:23,129 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1004] [2024-11-18 14:12:23,129 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1415] [2024-11-18 14:12:23,129 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2480] [2024-11-18 14:12:23,130 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2617] [2024-11-18 14:12:23,130 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignForward_spec.i","") [2634] [2024-11-18 14:12:23,131 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2661] [2024-11-18 14:12:23,158 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec4_product33.cil.c[11229,11242] [2024-11-18 14:12:23,236 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:12:23,269 INFO L204 MainTranslator]: Completed translation [2024-11-18 14:12:23,270 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:12:23 WrapperNode [2024-11-18 14:12:23,270 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 14:12:23,271 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 14:12:23,271 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 14:12:23,271 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 14:12:23,277 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:12:23" (1/1) ... [2024-11-18 14:12:23,309 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:12:23" (1/1) ... [2024-11-18 14:12:23,365 INFO L138 Inliner]: procedures = 134, calls = 212, calls flagged for inlining = 65, calls inlined = 60, statements flattened = 1079 [2024-11-18 14:12:23,369 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 14:12:23,370 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 14:12:23,370 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 14:12:23,370 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 14:12:23,382 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:12:23" (1/1) ... [2024-11-18 14:12:23,383 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:12:23" (1/1) ... [2024-11-18 14:12:23,392 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:12:23" (1/1) ... [2024-11-18 14:12:23,433 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4]. 29 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0]. [2024-11-18 14:12:23,433 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:12:23" (1/1) ... [2024-11-18 14:12:23,433 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:12:23" (1/1) ... [2024-11-18 14:12:23,451 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:12:23" (1/1) ... [2024-11-18 14:12:23,458 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:12:23" (1/1) ... [2024-11-18 14:12:23,461 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:12:23" (1/1) ... [2024-11-18 14:12:23,465 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:12:23" (1/1) ... [2024-11-18 14:12:23,470 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 14:12:23,471 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 14:12:23,471 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 14:12:23,471 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 14:12:23,472 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:12:23" (1/1) ... [2024-11-18 14:12:23,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:12:23,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:12:23,521 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 14:12:23,540 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 14:12:23,574 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-11-18 14:12:23,574 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-11-18 14:12:23,574 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-11-18 14:12:23,574 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-11-18 14:12:23,574 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-11-18 14:12:23,574 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-11-18 14:12:23,574 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-18 14:12:23,575 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-18 14:12:23,575 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-18 14:12:23,576 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-18 14:12:23,576 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-18 14:12:23,576 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-18 14:12:23,576 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-18 14:12:23,576 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-18 14:12:23,577 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-11-18 14:12:23,577 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-11-18 14:12:23,577 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-18 14:12:23,577 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-18 14:12:23,578 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-18 14:12:23,578 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-18 14:12:23,579 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-18 14:12:23,579 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-18 14:12:23,579 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2024-11-18 14:12:23,579 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2024-11-18 14:12:23,579 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-18 14:12:23,580 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-18 14:12:23,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 14:12:23,580 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-18 14:12:23,580 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-18 14:12:23,580 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-11-18 14:12:23,580 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-11-18 14:12:23,580 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-18 14:12:23,580 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-18 14:12:23,580 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-18 14:12:23,581 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-18 14:12:23,581 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-18 14:12:23,581 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-18 14:12:23,581 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-11-18 14:12:23,581 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-11-18 14:12:23,581 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-18 14:12:23,581 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-18 14:12:23,581 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-11-18 14:12:23,581 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-11-18 14:12:23,581 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-18 14:12:23,581 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-18 14:12:23,582 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-18 14:12:23,582 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-18 14:12:23,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 14:12:23,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-18 14:12:23,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-18 14:12:23,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-18 14:12:23,582 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-18 14:12:23,582 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-18 14:12:23,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 14:12:23,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 14:12:23,840 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 14:12:23,842 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 14:12:24,628 INFO L? ?]: Removed 501 outVars from TransFormulas that were not future-live. [2024-11-18 14:12:24,629 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 14:12:24,653 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 14:12:24,653 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 14:12:24,654 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:12:24 BoogieIcfgContainer [2024-11-18 14:12:24,654 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 14:12:24,662 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 14:12:24,663 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 14:12:24,670 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 14:12:24,670 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:12:22" (1/3) ... [2024-11-18 14:12:24,671 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bf24625 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:12:24, skipping insertion in model container [2024-11-18 14:12:24,671 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:12:23" (2/3) ... [2024-11-18 14:12:24,671 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bf24625 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:12:24, skipping insertion in model container [2024-11-18 14:12:24,671 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:12:24" (3/3) ... [2024-11-18 14:12:24,672 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec4_product33.cil.c [2024-11-18 14:12:24,707 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 14:12:24,708 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 14:12:24,801 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 14:12:24,813 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;@565ae5a0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 14:12:24,813 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 14:12:24,819 INFO L276 IsEmpty]: Start isEmpty. Operand has 388 states, 299 states have (on average 1.5016722408026757) internal successors, (449), 303 states have internal predecessors, (449), 63 states have call successors, (63), 24 states have call predecessors, (63), 24 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-18 14:12:24,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-18 14:12:24,838 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:12:24,839 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:12:24,840 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:12:24,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:12:24,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1753391489, now seen corresponding path program 1 times [2024-11-18 14:12:24,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:12:24,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811795260] [2024-11-18 14:12:24,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:12:24,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:12:25,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:12:25,407 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-18 14:12:25,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:12:25,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811795260] [2024-11-18 14:12:25,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811795260] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:12:25,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [262378150] [2024-11-18 14:12:25,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:12:25,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:12:25,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:12:25,411 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:12:25,412 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 14:12:25,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:12:25,660 INFO L255 TraceCheckSpWp]: Trace formula consists of 1026 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-18 14:12:25,667 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:12:25,681 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-18 14:12:25,682 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:12:25,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [262378150] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:12:25,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:12:25,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 5 [2024-11-18 14:12:25,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14630090] [2024-11-18 14:12:25,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:12:25,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 14:12:25,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:12:25,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 14:12:25,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:12:25,713 INFO L87 Difference]: Start difference. First operand has 388 states, 299 states have (on average 1.5016722408026757) internal successors, (449), 303 states have internal predecessors, (449), 63 states have call successors, (63), 24 states have call predecessors, (63), 24 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) Second operand has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-18 14:12:25,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:12:25,781 INFO L93 Difference]: Finished difference Result 617 states and 896 transitions. [2024-11-18 14:12:25,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 14:12:25,785 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 107 [2024-11-18 14:12:25,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:12:25,796 INFO L225 Difference]: With dead ends: 617 [2024-11-18 14:12:25,801 INFO L226 Difference]: Without dead ends: 381 [2024-11-18 14:12:25,806 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:12:25,809 INFO L432 NwaCegarLoop]: 571 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:12:25,810 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 571 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:12:25,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2024-11-18 14:12:25,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 381. [2024-11-18 14:12:25,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 293 states have (on average 1.4948805460750854) internal successors, (438), 296 states have internal predecessors, (438), 63 states have call successors, (63), 24 states have call predecessors, (63), 24 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-18 14:12:25,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 563 transitions. [2024-11-18 14:12:25,876 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 563 transitions. Word has length 107 [2024-11-18 14:12:25,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:12:25,877 INFO L471 AbstractCegarLoop]: Abstraction has 381 states and 563 transitions. [2024-11-18 14:12:25,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-18 14:12:25,878 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 563 transitions. [2024-11-18 14:12:25,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-18 14:12:25,885 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:12:25,885 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:12:25,916 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-18 14:12:26,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-18 14:12:26,087 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:12:26,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:12:26,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1713735028, now seen corresponding path program 1 times [2024-11-18 14:12:26,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:12:26,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822547545] [2024-11-18 14:12:26,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:12:26,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:12:26,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:12:26,353 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-18 14:12:26,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:12:26,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822547545] [2024-11-18 14:12:26,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822547545] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:12:26,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1088007607] [2024-11-18 14:12:26,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:12:26,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:12:26,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:12:26,360 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:12:26,362 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-18 14:12:26,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:12:26,618 INFO L255 TraceCheckSpWp]: Trace formula consists of 1027 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-18 14:12:26,622 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:12:26,647 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-18 14:12:26,648 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:12:26,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1088007607] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:12:26,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:12:26,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-18 14:12:26,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895682758] [2024-11-18 14:12:26,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:12:26,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:12:26,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:12:26,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:12:26,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:12:26,651 INFO L87 Difference]: Start difference. First operand 381 states and 563 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-18 14:12:26,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:12:26,682 INFO L93 Difference]: Finished difference Result 607 states and 877 transitions. [2024-11-18 14:12:26,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:12:26,683 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 108 [2024-11-18 14:12:26,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:12:26,685 INFO L225 Difference]: With dead ends: 607 [2024-11-18 14:12:26,685 INFO L226 Difference]: Without dead ends: 384 [2024-11-18 14:12:26,686 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:12:26,687 INFO L432 NwaCegarLoop]: 561 mSDtfsCounter, 1 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1120 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:12:26,688 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1120 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:12:26,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2024-11-18 14:12:26,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 383. [2024-11-18 14:12:26,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 295 states have (on average 1.4915254237288136) internal successors, (440), 298 states have internal predecessors, (440), 63 states have call successors, (63), 24 states have call predecessors, (63), 24 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-18 14:12:26,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 565 transitions. [2024-11-18 14:12:26,705 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 565 transitions. Word has length 108 [2024-11-18 14:12:26,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:12:26,705 INFO L471 AbstractCegarLoop]: Abstraction has 383 states and 565 transitions. [2024-11-18 14:12:26,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-18 14:12:26,706 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 565 transitions. [2024-11-18 14:12:26,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-18 14:12:26,708 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:12:26,709 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:12:26,725 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-18 14:12:26,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-18 14:12:26,910 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:12:26,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:12:26,910 INFO L85 PathProgramCache]: Analyzing trace with hash -2011102110, now seen corresponding path program 1 times [2024-11-18 14:12:26,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:12:26,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646043033] [2024-11-18 14:12:26,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:12:26,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:12:26,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:12:27,113 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-18 14:12:27,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:12:27,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646043033] [2024-11-18 14:12:27,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646043033] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:12:27,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1934537243] [2024-11-18 14:12:27,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:12:27,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:12:27,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:12:27,118 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:12:27,123 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-18 14:12:27,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:12:27,345 INFO L255 TraceCheckSpWp]: Trace formula consists of 1052 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-18 14:12:27,348 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:12:27,371 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-18 14:12:27,373 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:12:27,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1934537243] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:12:27,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:12:27,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-18 14:12:27,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432715808] [2024-11-18 14:12:27,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:12:27,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:12:27,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:12:27,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:12:27,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:12:27,377 INFO L87 Difference]: Start difference. First operand 383 states and 565 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-18 14:12:27,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:12:27,411 INFO L93 Difference]: Finished difference Result 801 states and 1197 transitions. [2024-11-18 14:12:27,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:12:27,412 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 117 [2024-11-18 14:12:27,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:12:27,415 INFO L225 Difference]: With dead ends: 801 [2024-11-18 14:12:27,415 INFO L226 Difference]: Without dead ends: 445 [2024-11-18 14:12:27,417 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:12:27,418 INFO L432 NwaCegarLoop]: 577 mSDtfsCounter, 115 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 1093 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:12:27,418 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 1093 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:12:27,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2024-11-18 14:12:27,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 437. [2024-11-18 14:12:27,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 338 states have (on average 1.5088757396449703) internal successors, (510), 341 states have internal predecessors, (510), 74 states have call successors, (74), 24 states have call predecessors, (74), 24 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2024-11-18 14:12:27,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 657 transitions. [2024-11-18 14:12:27,440 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 657 transitions. Word has length 117 [2024-11-18 14:12:27,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:12:27,441 INFO L471 AbstractCegarLoop]: Abstraction has 437 states and 657 transitions. [2024-11-18 14:12:27,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-18 14:12:27,441 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 657 transitions. [2024-11-18 14:12:27,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-18 14:12:27,443 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:12:27,443 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:12:27,458 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-18 14:12:27,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:12:27,645 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:12:27,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:12:27,645 INFO L85 PathProgramCache]: Analyzing trace with hash 245871513, now seen corresponding path program 1 times [2024-11-18 14:12:27,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:12:27,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852904436] [2024-11-18 14:12:27,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:12:27,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:12:27,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:12:27,775 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-18 14:12:27,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:12:27,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852904436] [2024-11-18 14:12:27,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852904436] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:12:27,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1229637760] [2024-11-18 14:12:27,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:12:27,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:12:27,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:12:27,780 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:12:27,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-18 14:12:28,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:12:28,018 INFO L255 TraceCheckSpWp]: Trace formula consists of 1057 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-18 14:12:28,026 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:12:28,077 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-18 14:12:28,079 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:12:28,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1229637760] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:12:28,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:12:28,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-18 14:12:28,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567432350] [2024-11-18 14:12:28,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:12:28,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:12:28,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:12:28,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:12:28,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:12:28,083 INFO L87 Difference]: Start difference. First operand 437 states and 657 transitions. Second operand has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-18 14:12:28,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:12:28,139 INFO L93 Difference]: Finished difference Result 865 states and 1304 transitions. [2024-11-18 14:12:28,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:12:28,140 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 118 [2024-11-18 14:12:28,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:12:28,143 INFO L225 Difference]: With dead ends: 865 [2024-11-18 14:12:28,143 INFO L226 Difference]: Without dead ends: 439 [2024-11-18 14:12:28,145 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:12:28,146 INFO L432 NwaCegarLoop]: 555 mSDtfsCounter, 2 mSDsluCounter, 1654 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2209 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:12:28,148 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2209 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:12:28,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2024-11-18 14:12:28,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 439. [2024-11-18 14:12:28,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 339 states have (on average 1.5073746312684366) internal successors, (511), 343 states have internal predecessors, (511), 74 states have call successors, (74), 24 states have call predecessors, (74), 25 states have return successors, (75), 73 states have call predecessors, (75), 73 states have call successors, (75) [2024-11-18 14:12:28,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 660 transitions. [2024-11-18 14:12:28,167 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 660 transitions. Word has length 118 [2024-11-18 14:12:28,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:12:28,168 INFO L471 AbstractCegarLoop]: Abstraction has 439 states and 660 transitions. [2024-11-18 14:12:28,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-18 14:12:28,168 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 660 transitions. [2024-11-18 14:12:28,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-18 14:12:28,171 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:12:28,171 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:12:28,196 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-18 14:12:28,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:12:28,372 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:12:28,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:12:28,373 INFO L85 PathProgramCache]: Analyzing trace with hash -1183278252, now seen corresponding path program 1 times [2024-11-18 14:12:28,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:12:28,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648459515] [2024-11-18 14:12:28,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:12:28,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:12:28,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:12:28,510 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-18 14:12:28,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:12:28,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648459515] [2024-11-18 14:12:28,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648459515] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:12:28,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [808020833] [2024-11-18 14:12:28,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:12:28,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:12:28,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:12:28,512 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:12:28,515 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-18 14:12:28,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:12:28,764 INFO L255 TraceCheckSpWp]: Trace formula consists of 1058 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-18 14:12:28,768 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:12:28,800 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-18 14:12:28,800 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:12:28,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [808020833] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:12:28,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:12:28,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2024-11-18 14:12:28,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666780486] [2024-11-18 14:12:28,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:12:28,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:12:28,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:12:28,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:12:28,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-18 14:12:28,802 INFO L87 Difference]: Start difference. First operand 439 states and 660 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-18 14:12:28,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:12:28,845 INFO L93 Difference]: Finished difference Result 867 states and 1309 transitions. [2024-11-18 14:12:28,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:12:28,846 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 119 [2024-11-18 14:12:28,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:12:28,848 INFO L225 Difference]: With dead ends: 867 [2024-11-18 14:12:28,848 INFO L226 Difference]: Without dead ends: 441 [2024-11-18 14:12:28,850 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-18 14:12:28,850 INFO L432 NwaCegarLoop]: 553 mSDtfsCounter, 2 mSDsluCounter, 1642 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2195 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:12:28,851 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2195 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:12:28,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2024-11-18 14:12:28,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 441. [2024-11-18 14:12:28,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 340 states have (on average 1.5058823529411764) internal successors, (512), 345 states have internal predecessors, (512), 74 states have call successors, (74), 24 states have call predecessors, (74), 26 states have return successors, (80), 73 states have call predecessors, (80), 73 states have call successors, (80) [2024-11-18 14:12:28,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 666 transitions. [2024-11-18 14:12:28,864 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 666 transitions. Word has length 119 [2024-11-18 14:12:28,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:12:28,864 INFO L471 AbstractCegarLoop]: Abstraction has 441 states and 666 transitions. [2024-11-18 14:12:28,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-18 14:12:28,864 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 666 transitions. [2024-11-18 14:12:28,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-18 14:12:28,865 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:12:28,866 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:12:28,880 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-18 14:12:29,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:12:29,067 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:12:29,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:12:29,068 INFO L85 PathProgramCache]: Analyzing trace with hash -164798134, now seen corresponding path program 1 times [2024-11-18 14:12:29,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:12:29,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634020479] [2024-11-18 14:12:29,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:12:29,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:12:29,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:12:29,230 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-18 14:12:29,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:12:29,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634020479] [2024-11-18 14:12:29,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634020479] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:12:29,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:12:29,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:12:29,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387499189] [2024-11-18 14:12:29,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:12:29,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:12:29,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:12:29,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:12:29,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:12:29,233 INFO L87 Difference]: Start difference. First operand 441 states and 666 transitions. Second operand has 5 states, 4 states have (on average 19.0) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-18 14:12:29,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:12:29,266 INFO L93 Difference]: Finished difference Result 859 states and 1300 transitions. [2024-11-18 14:12:29,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:12:29,267 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.0) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 120 [2024-11-18 14:12:29,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:12:29,269 INFO L225 Difference]: With dead ends: 859 [2024-11-18 14:12:29,269 INFO L226 Difference]: Without dead ends: 441 [2024-11-18 14:12:29,270 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:12:29,271 INFO L432 NwaCegarLoop]: 556 mSDtfsCounter, 2 mSDsluCounter, 1657 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2213 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:12:29,271 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2213 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:12:29,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2024-11-18 14:12:29,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 441. [2024-11-18 14:12:29,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 340 states have (on average 1.5058823529411764) internal successors, (512), 345 states have internal predecessors, (512), 74 states have call successors, (74), 24 states have call predecessors, (74), 26 states have return successors, (79), 73 states have call predecessors, (79), 73 states have call successors, (79) [2024-11-18 14:12:29,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 665 transitions. [2024-11-18 14:12:29,283 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 665 transitions. Word has length 120 [2024-11-18 14:12:29,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:12:29,283 INFO L471 AbstractCegarLoop]: Abstraction has 441 states and 665 transitions. [2024-11-18 14:12:29,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.0) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-18 14:12:29,283 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 665 transitions. [2024-11-18 14:12:29,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-18 14:12:29,285 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:12:29,285 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:12:29,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 14:12:29,285 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:12:29,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:12:29,285 INFO L85 PathProgramCache]: Analyzing trace with hash 586639335, now seen corresponding path program 2 times [2024-11-18 14:12:29,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:12:29,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106208123] [2024-11-18 14:12:29,285 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-18 14:12:29,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:12:29,304 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-18 14:12:29,304 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-18 14:12:29,441 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-18 14:12:29,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:12:29,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106208123] [2024-11-18 14:12:29,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106208123] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:12:29,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:12:29,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 14:12:29,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894991374] [2024-11-18 14:12:29,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:12:29,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 14:12:29,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:12:29,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 14:12:29,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:12:29,444 INFO L87 Difference]: Start difference. First operand 441 states and 665 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-18 14:12:29,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:12:29,742 INFO L93 Difference]: Finished difference Result 743 states and 1151 transitions. [2024-11-18 14:12:29,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-18 14:12:29,742 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) Word has length 121 [2024-11-18 14:12:29,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:12:29,746 INFO L225 Difference]: With dead ends: 743 [2024-11-18 14:12:29,746 INFO L226 Difference]: Without dead ends: 739 [2024-11-18 14:12:29,748 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-11-18 14:12:29,749 INFO L432 NwaCegarLoop]: 577 mSDtfsCounter, 546 mSDsluCounter, 2851 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 550 SdHoareTripleChecker+Valid, 3428 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 14:12:29,749 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [550 Valid, 3428 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 14:12:29,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2024-11-18 14:12:29,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 731. [2024-11-18 14:12:29,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 731 states, 571 states have (on average 1.542907180385289) internal successors, (881), 577 states have internal predecessors, (881), 117 states have call successors, (117), 41 states have call predecessors, (117), 42 states have return successors, (133), 115 states have call predecessors, (133), 116 states have call successors, (133) [2024-11-18 14:12:29,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 731 states to 731 states and 1131 transitions. [2024-11-18 14:12:29,781 INFO L78 Accepts]: Start accepts. Automaton has 731 states and 1131 transitions. Word has length 121 [2024-11-18 14:12:29,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:12:29,783 INFO L471 AbstractCegarLoop]: Abstraction has 731 states and 1131 transitions. [2024-11-18 14:12:29,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-18 14:12:29,783 INFO L276 IsEmpty]: Start isEmpty. Operand 731 states and 1131 transitions. [2024-11-18 14:12:29,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-18 14:12:29,785 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:12:29,785 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:12:29,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 14:12:29,786 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:12:29,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:12:29,786 INFO L85 PathProgramCache]: Analyzing trace with hash 468766931, now seen corresponding path program 1 times [2024-11-18 14:12:29,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:12:29,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127413437] [2024-11-18 14:12:29,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:12:29,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:12:29,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:12:29,881 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-18 14:12:29,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:12:29,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127413437] [2024-11-18 14:12:29,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127413437] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:12:29,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1008709605] [2024-11-18 14:12:29,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:12:29,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:12:29,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:12:29,885 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:12:29,887 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-18 14:12:30,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:12:30,141 INFO L255 TraceCheckSpWp]: Trace formula consists of 1063 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-18 14:12:30,144 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:12:30,181 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-18 14:12:30,182 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:12:30,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1008709605] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:12:30,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:12:30,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-18 14:12:30,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391914669] [2024-11-18 14:12:30,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:12:30,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:12:30,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:12:30,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:12:30,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:12:30,185 INFO L87 Difference]: Start difference. First operand 731 states and 1131 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-18 14:12:30,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:12:30,235 INFO L93 Difference]: Finished difference Result 1445 states and 2243 transitions. [2024-11-18 14:12:30,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:12:30,235 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 124 [2024-11-18 14:12:30,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:12:30,239 INFO L225 Difference]: With dead ends: 1445 [2024-11-18 14:12:30,239 INFO L226 Difference]: Without dead ends: 737 [2024-11-18 14:12:30,242 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:12:30,243 INFO L432 NwaCegarLoop]: 557 mSDtfsCounter, 1 mSDsluCounter, 1653 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2210 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:12:30,243 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2210 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:12:30,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2024-11-18 14:12:30,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 733. [2024-11-18 14:12:30,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 733 states, 572 states have (on average 1.5419580419580419) internal successors, (882), 579 states have internal predecessors, (882), 117 states have call successors, (117), 41 states have call predecessors, (117), 43 states have return successors, (136), 115 states have call predecessors, (136), 116 states have call successors, (136) [2024-11-18 14:12:30,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 1135 transitions. [2024-11-18 14:12:30,269 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 1135 transitions. Word has length 124 [2024-11-18 14:12:30,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:12:30,269 INFO L471 AbstractCegarLoop]: Abstraction has 733 states and 1135 transitions. [2024-11-18 14:12:30,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-18 14:12:30,269 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 1135 transitions. [2024-11-18 14:12:30,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-18 14:12:30,273 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:12:30,273 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:12:30,290 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-18 14:12:30,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:12:30,477 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:12:30,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:12:30,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1140840983, now seen corresponding path program 1 times [2024-11-18 14:12:30,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:12:30,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907957862] [2024-11-18 14:12:30,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:12:30,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:12:30,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:12:30,569 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-18 14:12:30,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:12:30,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907957862] [2024-11-18 14:12:30,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907957862] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:12:30,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:12:30,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:12:30,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254239275] [2024-11-18 14:12:30,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:12:30,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:12:30,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:12:30,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:12:30,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:12:30,571 INFO L87 Difference]: Start difference. First operand 733 states and 1135 transitions. Second operand has 5 states, 4 states have (on average 19.75) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-18 14:12:30,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:12:30,609 INFO L93 Difference]: Finished difference Result 1435 states and 2229 transitions. [2024-11-18 14:12:30,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:12:30,609 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.75) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 122 [2024-11-18 14:12:30,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:12:30,612 INFO L225 Difference]: With dead ends: 1435 [2024-11-18 14:12:30,612 INFO L226 Difference]: Without dead ends: 737 [2024-11-18 14:12:30,614 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:12:30,614 INFO L432 NwaCegarLoop]: 557 mSDtfsCounter, 1 mSDsluCounter, 1659 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2216 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:12:30,614 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2216 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:12:30,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2024-11-18 14:12:30,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 737. [2024-11-18 14:12:30,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 737 states, 574 states have (on average 1.5400696864111498) internal successors, (884), 583 states have internal predecessors, (884), 117 states have call successors, (117), 41 states have call predecessors, (117), 45 states have return successors, (139), 115 states have call predecessors, (139), 116 states have call successors, (139) [2024-11-18 14:12:30,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 737 states to 737 states and 1140 transitions. [2024-11-18 14:12:30,632 INFO L78 Accepts]: Start accepts. Automaton has 737 states and 1140 transitions. Word has length 122 [2024-11-18 14:12:30,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:12:30,632 INFO L471 AbstractCegarLoop]: Abstraction has 737 states and 1140 transitions. [2024-11-18 14:12:30,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.75) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-18 14:12:30,632 INFO L276 IsEmpty]: Start isEmpty. Operand 737 states and 1140 transitions. [2024-11-18 14:12:30,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-18 14:12:30,634 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:12:30,634 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:12:30,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 14:12:30,635 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:12:30,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:12:30,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1895431239, now seen corresponding path program 1 times [2024-11-18 14:12:30,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:12:30,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921055689] [2024-11-18 14:12:30,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:12:30,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:12:30,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:12:30,781 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-18 14:12:30,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:12:30,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921055689] [2024-11-18 14:12:30,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921055689] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:12:30,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:12:30,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 14:12:30,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136928485] [2024-11-18 14:12:30,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:12:30,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 14:12:30,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:12:30,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 14:12:30,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:12:30,783 INFO L87 Difference]: Start difference. First operand 737 states and 1140 transitions. Second operand has 8 states, 7 states have (on average 11.857142857142858) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-18 14:12:30,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:12:30,962 INFO L93 Difference]: Finished difference Result 1433 states and 2220 transitions. [2024-11-18 14:12:30,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 14:12:30,963 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.857142857142858) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 123 [2024-11-18 14:12:30,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:12:30,971 INFO L225 Difference]: With dead ends: 1433 [2024-11-18 14:12:30,971 INFO L226 Difference]: Without dead ends: 741 [2024-11-18 14:12:30,973 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-18 14:12:30,974 INFO L432 NwaCegarLoop]: 547 mSDtfsCounter, 7 mSDsluCounter, 3253 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 3800 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:12:30,978 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 3800 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:12:30,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2024-11-18 14:12:31,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 739. [2024-11-18 14:12:31,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 739 states, 576 states have (on average 1.5381944444444444) internal successors, (886), 584 states have internal predecessors, (886), 117 states have call successors, (117), 42 states have call predecessors, (117), 45 states have return successors, (137), 115 states have call predecessors, (137), 116 states have call successors, (137) [2024-11-18 14:12:31,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 1140 transitions. [2024-11-18 14:12:31,024 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 1140 transitions. Word has length 123 [2024-11-18 14:12:31,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:12:31,025 INFO L471 AbstractCegarLoop]: Abstraction has 739 states and 1140 transitions. [2024-11-18 14:12:31,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.857142857142858) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-18 14:12:31,025 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 1140 transitions. [2024-11-18 14:12:31,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-18 14:12:31,027 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:12:31,027 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:12:31,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 14:12:31,028 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:12:31,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:12:31,028 INFO L85 PathProgramCache]: Analyzing trace with hash -2107929571, now seen corresponding path program 2 times [2024-11-18 14:12:31,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:12:31,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313096898] [2024-11-18 14:12:31,028 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-18 14:12:31,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:12:31,045 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-18 14:12:31,046 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-18 14:12:31,145 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-18 14:12:31,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:12:31,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313096898] [2024-11-18 14:12:31,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313096898] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:12:31,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:12:31,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 14:12:31,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583910141] [2024-11-18 14:12:31,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:12:31,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 14:12:31,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:12:31,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 14:12:31,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:12:31,148 INFO L87 Difference]: Start difference. First operand 739 states and 1140 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-18 14:12:31,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:12:31,475 INFO L93 Difference]: Finished difference Result 1339 states and 2106 transitions. [2024-11-18 14:12:31,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-18 14:12:31,475 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) Word has length 124 [2024-11-18 14:12:31,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:12:31,481 INFO L225 Difference]: With dead ends: 1339 [2024-11-18 14:12:31,481 INFO L226 Difference]: Without dead ends: 1333 [2024-11-18 14:12:31,482 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-11-18 14:12:31,482 INFO L432 NwaCegarLoop]: 577 mSDtfsCounter, 535 mSDsluCounter, 2851 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 536 SdHoareTripleChecker+Valid, 3428 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 14:12:31,483 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [536 Valid, 3428 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 14:12:31,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1333 states. [2024-11-18 14:12:31,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1333 to 1163. [2024-11-18 14:12:31,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1163 states, 917 states have (on average 1.569247546346783) internal successors, (1439), 928 states have internal predecessors, (1439), 179 states have call successors, (179), 58 states have call predecessors, (179), 66 states have return successors, (235), 179 states have call predecessors, (235), 178 states have call successors, (235) [2024-11-18 14:12:31,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1163 states to 1163 states and 1853 transitions. [2024-11-18 14:12:31,517 INFO L78 Accepts]: Start accepts. Automaton has 1163 states and 1853 transitions. Word has length 124 [2024-11-18 14:12:31,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:12:31,518 INFO L471 AbstractCegarLoop]: Abstraction has 1163 states and 1853 transitions. [2024-11-18 14:12:31,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-18 14:12:31,518 INFO L276 IsEmpty]: Start isEmpty. Operand 1163 states and 1853 transitions. [2024-11-18 14:12:31,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-18 14:12:31,521 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:12:31,521 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:12:31,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 14:12:31,522 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:12:31,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:12:31,522 INFO L85 PathProgramCache]: Analyzing trace with hash -671899875, now seen corresponding path program 1 times [2024-11-18 14:12:31,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:12:31,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583408472] [2024-11-18 14:12:31,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:12:31,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:12:31,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:12:31,640 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-18 14:12:31,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:12:31,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583408472] [2024-11-18 14:12:31,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583408472] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:12:31,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:12:31,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 14:12:31,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537961692] [2024-11-18 14:12:31,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:12:31,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 14:12:31,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:12:31,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 14:12:31,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:12:31,642 INFO L87 Difference]: Start difference. First operand 1163 states and 1853 transitions. Second operand has 8 states, 7 states have (on average 12.142857142857142) internal successors, (85), 8 states have internal predecessors, (85), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-18 14:12:31,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:12:31,764 INFO L93 Difference]: Finished difference Result 2265 states and 3620 transitions. [2024-11-18 14:12:31,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 14:12:31,765 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.142857142857142) internal successors, (85), 8 states have internal predecessors, (85), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 125 [2024-11-18 14:12:31,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:12:31,775 INFO L225 Difference]: With dead ends: 2265 [2024-11-18 14:12:31,775 INFO L226 Difference]: Without dead ends: 1171 [2024-11-18 14:12:31,779 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-18 14:12:31,780 INFO L432 NwaCegarLoop]: 549 mSDtfsCounter, 5 mSDsluCounter, 3265 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 3814 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:12:31,780 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 3814 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:12:31,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1171 states. [2024-11-18 14:12:31,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1171 to 1167. [2024-11-18 14:12:31,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1167 states, 921 states have (on average 1.5667752442996743) internal successors, (1443), 931 states have internal predecessors, (1443), 179 states have call successors, (179), 59 states have call predecessors, (179), 66 states have return successors, (231), 179 states have call predecessors, (231), 178 states have call successors, (231) [2024-11-18 14:12:31,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1167 states to 1167 states and 1853 transitions. [2024-11-18 14:12:31,819 INFO L78 Accepts]: Start accepts. Automaton has 1167 states and 1853 transitions. Word has length 125 [2024-11-18 14:12:31,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:12:31,820 INFO L471 AbstractCegarLoop]: Abstraction has 1167 states and 1853 transitions. [2024-11-18 14:12:31,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.142857142857142) internal successors, (85), 8 states have internal predecessors, (85), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-18 14:12:31,820 INFO L276 IsEmpty]: Start isEmpty. Operand 1167 states and 1853 transitions. [2024-11-18 14:12:31,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-18 14:12:31,823 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:12:31,823 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:12:31,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 14:12:31,824 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:12:31,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:12:31,824 INFO L85 PathProgramCache]: Analyzing trace with hash 897560860, now seen corresponding path program 1 times [2024-11-18 14:12:31,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:12:31,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113317453] [2024-11-18 14:12:31,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:12:31,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:12:31,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:12:31,992 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-18 14:12:31,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:12:31,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113317453] [2024-11-18 14:12:31,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113317453] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:12:31,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [640221495] [2024-11-18 14:12:31,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:12:31,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:12:31,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:12:31,995 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:12:31,996 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-18 14:12:32,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:12:32,226 INFO L255 TraceCheckSpWp]: Trace formula consists of 1065 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-18 14:12:32,228 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:12:32,258 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-18 14:12:32,261 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 14:12:32,350 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-18 14:12:32,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [640221495] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 14:12:32,351 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 14:12:32,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 11 [2024-11-18 14:12:32,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067964703] [2024-11-18 14:12:32,351 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 14:12:32,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-18 14:12:32,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:12:32,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-18 14:12:32,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-18 14:12:32,354 INFO L87 Difference]: Start difference. First operand 1167 states and 1853 transitions. Second operand has 11 states, 10 states have (on average 13.8) internal successors, (138), 11 states have internal predecessors, (138), 4 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2024-11-18 14:12:32,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:12:32,954 INFO L93 Difference]: Finished difference Result 3695 states and 6166 transitions. [2024-11-18 14:12:32,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-18 14:12:32,955 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 13.8) internal successors, (138), 11 states have internal predecessors, (138), 4 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) Word has length 126 [2024-11-18 14:12:32,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:12:32,967 INFO L225 Difference]: With dead ends: 3695 [2024-11-18 14:12:32,967 INFO L226 Difference]: Without dead ends: 2611 [2024-11-18 14:12:32,970 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=106, Invalid=400, Unknown=0, NotChecked=0, Total=506 [2024-11-18 14:12:32,971 INFO L432 NwaCegarLoop]: 550 mSDtfsCounter, 1337 mSDsluCounter, 3383 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1337 SdHoareTripleChecker+Valid, 3933 SdHoareTripleChecker+Invalid, 613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 14:12:32,971 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1337 Valid, 3933 Invalid, 613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 511 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 14:12:32,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2611 states. [2024-11-18 14:12:33,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2611 to 2581. [2024-11-18 14:12:33,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2581 states, 2079 states have (on average 1.6012506012506011) internal successors, (3329), 2088 states have internal predecessors, (3329), 435 states have call successors, (435), 60 states have call predecessors, (435), 66 states have return successors, (567), 435 states have call predecessors, (567), 434 states have call successors, (567) [2024-11-18 14:12:33,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2581 states to 2581 states and 4331 transitions. [2024-11-18 14:12:33,059 INFO L78 Accepts]: Start accepts. Automaton has 2581 states and 4331 transitions. Word has length 126 [2024-11-18 14:12:33,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:12:33,059 INFO L471 AbstractCegarLoop]: Abstraction has 2581 states and 4331 transitions. [2024-11-18 14:12:33,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 13.8) internal successors, (138), 11 states have internal predecessors, (138), 4 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2024-11-18 14:12:33,061 INFO L276 IsEmpty]: Start isEmpty. Operand 2581 states and 4331 transitions. [2024-11-18 14:12:33,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-18 14:12:33,072 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:12:33,072 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:12:33,086 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-18 14:12:33,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:12:33,273 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:12:33,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:12:33,274 INFO L85 PathProgramCache]: Analyzing trace with hash 2049655467, now seen corresponding path program 1 times [2024-11-18 14:12:33,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:12:33,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412413651] [2024-11-18 14:12:33,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:12:33,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:12:33,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:12:33,365 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-18 14:12:33,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:12:33,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412413651] [2024-11-18 14:12:33,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412413651] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:12:33,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1650518061] [2024-11-18 14:12:33,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:12:33,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:12:33,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:12:33,367 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:12:33,371 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-18 14:12:33,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:12:33,604 INFO L255 TraceCheckSpWp]: Trace formula consists of 1054 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-18 14:12:33,606 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:12:33,625 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-18 14:12:33,626 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:12:33,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1650518061] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:12:33,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:12:33,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-18 14:12:33,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888777116] [2024-11-18 14:12:33,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:12:33,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:12:33,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:12:33,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:12:33,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:12:33,628 INFO L87 Difference]: Start difference. First operand 2581 states and 4331 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-18 14:12:33,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:12:33,759 INFO L93 Difference]: Finished difference Result 6197 states and 10572 transitions. [2024-11-18 14:12:33,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:12:33,759 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 130 [2024-11-18 14:12:33,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:12:33,782 INFO L225 Difference]: With dead ends: 6197 [2024-11-18 14:12:33,782 INFO L226 Difference]: Without dead ends: 3891 [2024-11-18 14:12:33,792 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:12:33,792 INFO L432 NwaCegarLoop]: 580 mSDtfsCounter, 112 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 1133 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:12:33,792 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 1133 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:12:33,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3891 states. [2024-11-18 14:12:33,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3891 to 3881. [2024-11-18 14:12:33,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3881 states, 3123 states have (on average 1.6103105987832214) internal successors, (5029), 3132 states have internal predecessors, (5029), 691 states have call successors, (691), 60 states have call predecessors, (691), 66 states have return successors, (903), 691 states have call predecessors, (903), 690 states have call successors, (903) [2024-11-18 14:12:33,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3881 states to 3881 states and 6623 transitions. [2024-11-18 14:12:33,936 INFO L78 Accepts]: Start accepts. Automaton has 3881 states and 6623 transitions. Word has length 130 [2024-11-18 14:12:33,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:12:33,937 INFO L471 AbstractCegarLoop]: Abstraction has 3881 states and 6623 transitions. [2024-11-18 14:12:33,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-18 14:12:33,937 INFO L276 IsEmpty]: Start isEmpty. Operand 3881 states and 6623 transitions. [2024-11-18 14:12:33,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-18 14:12:33,954 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:12:33,954 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:12:33,969 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-18 14:12:34,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-18 14:12:34,156 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:12:34,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:12:34,157 INFO L85 PathProgramCache]: Analyzing trace with hash -340894760, now seen corresponding path program 1 times [2024-11-18 14:12:34,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:12:34,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899610681] [2024-11-18 14:12:34,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:12:34,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:12:34,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:12:34,246 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-18 14:12:34,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:12:34,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899610681] [2024-11-18 14:12:34,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899610681] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:12:34,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:12:34,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:12:34,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789496503] [2024-11-18 14:12:34,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:12:34,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:12:34,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:12:34,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:12:34,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:12:34,248 INFO L87 Difference]: Start difference. First operand 3881 states and 6623 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-18 14:12:34,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:12:34,353 INFO L93 Difference]: Finished difference Result 9417 states and 16148 transitions. [2024-11-18 14:12:34,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:12:34,355 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 130 [2024-11-18 14:12:34,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:12:34,384 INFO L225 Difference]: With dead ends: 9417 [2024-11-18 14:12:34,385 INFO L226 Difference]: Without dead ends: 6023 [2024-11-18 14:12:34,398 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:12:34,399 INFO L432 NwaCegarLoop]: 563 mSDtfsCounter, 110 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 1118 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:12:34,399 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 1118 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:12:34,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6023 states. [2024-11-18 14:12:34,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6023 to 6013. [2024-11-18 14:12:34,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6013 states, 4875 states have (on average 1.6108717948717948) internal successors, (7853), 4884 states have internal predecessors, (7853), 1071 states have call successors, (1071), 60 states have call predecessors, (1071), 66 states have return successors, (1347), 1071 states have call predecessors, (1347), 1070 states have call successors, (1347) [2024-11-18 14:12:34,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6013 states to 6013 states and 10271 transitions. [2024-11-18 14:12:34,760 INFO L78 Accepts]: Start accepts. Automaton has 6013 states and 10271 transitions. Word has length 130 [2024-11-18 14:12:34,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:12:34,761 INFO L471 AbstractCegarLoop]: Abstraction has 6013 states and 10271 transitions. [2024-11-18 14:12:34,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-18 14:12:34,761 INFO L276 IsEmpty]: Start isEmpty. Operand 6013 states and 10271 transitions. [2024-11-18 14:12:34,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-18 14:12:34,791 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:12:34,791 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:12:34,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-18 14:12:34,792 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:12:34,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:12:34,792 INFO L85 PathProgramCache]: Analyzing trace with hash -1296102599, now seen corresponding path program 1 times [2024-11-18 14:12:34,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:12:34,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440570735] [2024-11-18 14:12:34,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:12:34,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:12:34,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:12:34,887 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-18 14:12:34,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:12:34,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440570735] [2024-11-18 14:12:34,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440570735] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:12:34,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [286087837] [2024-11-18 14:12:34,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:12:34,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:12:34,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:12:34,890 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:12:34,891 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-18 14:12:35,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:12:35,123 INFO L255 TraceCheckSpWp]: Trace formula consists of 1064 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-18 14:12:35,125 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:12:35,144 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-18 14:12:35,144 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:12:35,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [286087837] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:12:35,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:12:35,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-18 14:12:35,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737109744] [2024-11-18 14:12:35,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:12:35,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:12:35,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:12:35,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:12:35,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:12:35,147 INFO L87 Difference]: Start difference. First operand 6013 states and 10271 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-18 14:12:35,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:12:35,390 INFO L93 Difference]: Finished difference Result 14245 states and 24524 transitions. [2024-11-18 14:12:35,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:12:35,390 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 132 [2024-11-18 14:12:35,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:12:35,445 INFO L225 Difference]: With dead ends: 14245 [2024-11-18 14:12:35,445 INFO L226 Difference]: Without dead ends: 9259 [2024-11-18 14:12:35,461 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:12:35,462 INFO L432 NwaCegarLoop]: 561 mSDtfsCounter, 108 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 1113 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:12:35,462 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 1113 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:12:35,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9259 states. [2024-11-18 14:12:35,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9259 to 9249. [2024-11-18 14:12:35,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9249 states, 7619 states have (on average 1.611891324320777) internal successors, (12281), 7628 states have internal predecessors, (12281), 1563 states have call successors, (1563), 60 states have call predecessors, (1563), 66 states have return successors, (2007), 1563 states have call predecessors, (2007), 1562 states have call successors, (2007) [2024-11-18 14:12:35,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9249 states to 9249 states and 15851 transitions. [2024-11-18 14:12:35,849 INFO L78 Accepts]: Start accepts. Automaton has 9249 states and 15851 transitions. Word has length 132 [2024-11-18 14:12:35,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:12:35,852 INFO L471 AbstractCegarLoop]: Abstraction has 9249 states and 15851 transitions. [2024-11-18 14:12:35,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-18 14:12:35,853 INFO L276 IsEmpty]: Start isEmpty. Operand 9249 states and 15851 transitions. [2024-11-18 14:12:35,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-18 14:12:35,897 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:12:35,898 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:12:35,915 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-18 14:12:36,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-18 14:12:36,099 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:12:36,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:12:36,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1233317447, now seen corresponding path program 1 times [2024-11-18 14:12:36,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:12:36,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213190439] [2024-11-18 14:12:36,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:12:36,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:12:36,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:12:36,184 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-18 14:12:36,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:12:36,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213190439] [2024-11-18 14:12:36,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213190439] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:12:36,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:12:36,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:12:36,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442783271] [2024-11-18 14:12:36,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:12:36,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:12:36,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:12:36,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:12:36,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:12:36,186 INFO L87 Difference]: Start difference. First operand 9249 states and 15851 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-18 14:12:36,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:12:36,549 INFO L93 Difference]: Finished difference Result 21781 states and 37616 transitions. [2024-11-18 14:12:36,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:12:36,549 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 132 [2024-11-18 14:12:36,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:12:36,602 INFO L225 Difference]: With dead ends: 21781 [2024-11-18 14:12:36,603 INFO L226 Difference]: Without dead ends: 14435 [2024-11-18 14:12:36,625 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:12:36,626 INFO L432 NwaCegarLoop]: 561 mSDtfsCounter, 106 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 1113 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:12:36,626 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 1113 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:12:36,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14435 states. [2024-11-18 14:12:37,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14435 to 14425. [2024-11-18 14:12:37,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14425 states, 12079 states have (on average 1.6121367662886001) internal successors, (19473), 12088 states have internal predecessors, (19473), 2279 states have call successors, (2279), 60 states have call predecessors, (2279), 66 states have return successors, (3003), 2279 states have call predecessors, (3003), 2278 states have call successors, (3003) [2024-11-18 14:12:37,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14425 states to 14425 states and 24755 transitions. [2024-11-18 14:12:37,322 INFO L78 Accepts]: Start accepts. Automaton has 14425 states and 24755 transitions. Word has length 132 [2024-11-18 14:12:37,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:12:37,323 INFO L471 AbstractCegarLoop]: Abstraction has 14425 states and 24755 transitions. [2024-11-18 14:12:37,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-18 14:12:37,324 INFO L276 IsEmpty]: Start isEmpty. Operand 14425 states and 24755 transitions. [2024-11-18 14:12:37,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-18 14:12:37,364 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:12:37,364 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:12:37,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-18 14:12:37,364 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:12:37,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:12:37,365 INFO L85 PathProgramCache]: Analyzing trace with hash 356066170, now seen corresponding path program 1 times [2024-11-18 14:12:37,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:12:37,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707449925] [2024-11-18 14:12:37,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:12:37,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:12:37,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:12:37,516 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-18 14:12:37,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:12:37,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707449925] [2024-11-18 14:12:37,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707449925] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:12:37,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:12:37,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:12:37,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555188186] [2024-11-18 14:12:37,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:12:37,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:12:37,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:12:37,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:12:37,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:12:37,519 INFO L87 Difference]: Start difference. First operand 14425 states and 24755 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-18 14:12:37,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:12:37,996 INFO L93 Difference]: Finished difference Result 34193 states and 59160 transitions. [2024-11-18 14:12:37,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:12:37,997 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 133 [2024-11-18 14:12:37,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:12:38,087 INFO L225 Difference]: With dead ends: 34193 [2024-11-18 14:12:38,087 INFO L226 Difference]: Without dead ends: 22999 [2024-11-18 14:12:38,124 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:12:38,125 INFO L432 NwaCegarLoop]: 574 mSDtfsCounter, 104 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 1125 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:12:38,125 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 1125 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:12:38,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22999 states. [2024-11-18 14:12:38,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22999 to 22989. [2024-11-18 14:12:38,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22989 states, 19139 states have (on average 1.6038978003030462) internal successors, (30697), 19148 states have internal predecessors, (30697), 3783 states have call successors, (3783), 60 states have call predecessors, (3783), 66 states have return successors, (4995), 3783 states have call predecessors, (4995), 3782 states have call successors, (4995) [2024-11-18 14:12:39,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22989 states to 22989 states and 39475 transitions. [2024-11-18 14:12:39,073 INFO L78 Accepts]: Start accepts. Automaton has 22989 states and 39475 transitions. Word has length 133 [2024-11-18 14:12:39,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:12:39,073 INFO L471 AbstractCegarLoop]: Abstraction has 22989 states and 39475 transitions. [2024-11-18 14:12:39,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-18 14:12:39,074 INFO L276 IsEmpty]: Start isEmpty. Operand 22989 states and 39475 transitions. [2024-11-18 14:12:39,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-18 14:12:39,125 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:12:39,125 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:12:39,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-18 14:12:39,125 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:12:39,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:12:39,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1462617149, now seen corresponding path program 1 times [2024-11-18 14:12:39,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:12:39,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779019607] [2024-11-18 14:12:39,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:12:39,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:12:39,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:12:39,170 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-18 14:12:39,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:12:39,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779019607] [2024-11-18 14:12:39,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779019607] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:12:39,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:12:39,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:12:39,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84565577] [2024-11-18 14:12:39,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:12:39,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:12:39,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:12:39,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:12:39,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:12:39,174 INFO L87 Difference]: Start difference. First operand 22989 states and 39475 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-18 14:12:40,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:12:40,170 INFO L93 Difference]: Finished difference Result 56661 states and 97680 transitions. [2024-11-18 14:12:40,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:12:40,170 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 134 [2024-11-18 14:12:40,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:12:40,398 INFO L225 Difference]: With dead ends: 56661 [2024-11-18 14:12:40,399 INFO L226 Difference]: Without dead ends: 38511 [2024-11-18 14:12:40,458 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:12:40,459 INFO L432 NwaCegarLoop]: 570 mSDtfsCounter, 102 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 1126 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:12:40,459 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 1126 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:12:40,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38511 states. [2024-11-18 14:12:41,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38511 to 38501. [2024-11-18 14:12:41,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38501 states, 32227 states have (on average 1.6003040928414063) internal successors, (51573), 32236 states have internal predecessors, (51573), 6207 states have call successors, (6207), 60 states have call predecessors, (6207), 66 states have return successors, (8019), 6207 states have call predecessors, (8019), 6206 states have call successors, (8019) [2024-11-18 14:12:42,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38501 states to 38501 states and 65799 transitions. [2024-11-18 14:12:42,085 INFO L78 Accepts]: Start accepts. Automaton has 38501 states and 65799 transitions. Word has length 134 [2024-11-18 14:12:42,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:12:42,086 INFO L471 AbstractCegarLoop]: Abstraction has 38501 states and 65799 transitions. [2024-11-18 14:12:42,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-18 14:12:42,087 INFO L276 IsEmpty]: Start isEmpty. Operand 38501 states and 65799 transitions. [2024-11-18 14:12:42,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-18 14:12:42,174 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:12:42,174 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:12:42,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-18 14:12:42,174 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:12:42,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:12:42,175 INFO L85 PathProgramCache]: Analyzing trace with hash 529123624, now seen corresponding path program 1 times [2024-11-18 14:12:42,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:12:42,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190113006] [2024-11-18 14:12:42,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:12:42,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:12:42,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:12:42,261 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-18 14:12:42,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:12:42,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190113006] [2024-11-18 14:12:42,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190113006] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:12:42,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:12:42,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:12:42,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907139662] [2024-11-18 14:12:42,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:12:42,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:12:42,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:12:42,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:12:42,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:12:42,264 INFO L87 Difference]: Start difference. First operand 38501 states and 65799 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-18 14:12:44,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:12:44,034 INFO L93 Difference]: Finished difference Result 99497 states and 170804 transitions. [2024-11-18 14:12:44,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:12:44,035 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 135 [2024-11-18 14:12:44,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:12:44,361 INFO L225 Difference]: With dead ends: 99497 [2024-11-18 14:12:44,362 INFO L226 Difference]: Without dead ends: 67763 [2024-11-18 14:12:44,459 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:12:44,460 INFO L432 NwaCegarLoop]: 581 mSDtfsCounter, 100 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 1140 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:12:44,461 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 1140 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:12:44,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67763 states. [2024-11-18 14:12:47,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67763 to 67753. [2024-11-18 14:12:47,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67753 states, 56667 states have (on average 1.5909965235498615) internal successors, (90157), 56676 states have internal predecessors, (90157), 11019 states have call successors, (11019), 60 states have call predecessors, (11019), 66 states have return successors, (14243), 11019 states have call predecessors, (14243), 11018 states have call successors, (14243) [2024-11-18 14:12:47,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67753 states to 67753 states and 115419 transitions. [2024-11-18 14:12:47,482 INFO L78 Accepts]: Start accepts. Automaton has 67753 states and 115419 transitions. Word has length 135 [2024-11-18 14:12:47,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:12:47,482 INFO L471 AbstractCegarLoop]: Abstraction has 67753 states and 115419 transitions. [2024-11-18 14:12:47,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-18 14:12:47,483 INFO L276 IsEmpty]: Start isEmpty. Operand 67753 states and 115419 transitions. [2024-11-18 14:12:47,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-18 14:12:47,576 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:12:47,576 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:12:47,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-18 14:12:47,577 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:12:47,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:12:47,577 INFO L85 PathProgramCache]: Analyzing trace with hash 582215395, now seen corresponding path program 1 times [2024-11-18 14:12:47,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:12:47,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312888084] [2024-11-18 14:12:47,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:12:47,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:12:47,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:12:47,657 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-18 14:12:47,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:12:47,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312888084] [2024-11-18 14:12:47,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312888084] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:12:47,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [451228160] [2024-11-18 14:12:47,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:12:47,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:12:47,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:12:47,661 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:12:48,109 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-18 14:12:48,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:12:48,422 INFO L255 TraceCheckSpWp]: Trace formula consists of 1089 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-18 14:12:48,425 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:12:48,447 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-18 14:12:48,447 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:12:48,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [451228160] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:12:48,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:12:48,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-18 14:12:48,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364564548] [2024-11-18 14:12:48,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:12:48,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:12:48,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:12:48,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:12:48,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:12:48,453 INFO L87 Difference]: Start difference. First operand 67753 states and 115419 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-18 14:12:51,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:12:51,322 INFO L93 Difference]: Finished difference Result 179401 states and 307116 transitions. [2024-11-18 14:12:51,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:12:51,323 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 137 [2024-11-18 14:12:51,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:12:51,811 INFO L225 Difference]: With dead ends: 179401 [2024-11-18 14:12:51,811 INFO L226 Difference]: Without dead ends: 121123 [2024-11-18 14:12:51,933 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:12:51,934 INFO L432 NwaCegarLoop]: 561 mSDtfsCounter, 98 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 1116 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:12:51,934 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 1116 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:12:52,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121123 states. [2024-11-18 14:12:56,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121123 to 121113. [2024-11-18 14:12:56,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121113 states, 101871 states have (on average 1.586408300694015) internal successors, (161609), 101880 states have internal predecessors, (161609), 19175 states have call successors, (19175), 60 states have call predecessors, (19175), 66 states have return successors, (25107), 19175 states have call predecessors, (25107), 19174 states have call successors, (25107) [2024-11-18 14:12:57,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121113 states to 121113 states and 205891 transitions. [2024-11-18 14:12:57,238 INFO L78 Accepts]: Start accepts. Automaton has 121113 states and 205891 transitions. Word has length 137 [2024-11-18 14:12:57,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:12:57,239 INFO L471 AbstractCegarLoop]: Abstraction has 121113 states and 205891 transitions. [2024-11-18 14:12:57,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-18 14:12:57,239 INFO L276 IsEmpty]: Start isEmpty. Operand 121113 states and 205891 transitions. [2024-11-18 14:12:57,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-18 14:12:57,415 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:12:57,415 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:12:57,431 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-18 14:12:57,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-18 14:12:57,616 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:12:57,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:12:57,617 INFO L85 PathProgramCache]: Analyzing trace with hash -859135675, now seen corresponding path program 1 times [2024-11-18 14:12:57,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:12:57,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352858057] [2024-11-18 14:12:57,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:12:57,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:12:57,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:12:57,738 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-18 14:12:57,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:12:57,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352858057] [2024-11-18 14:12:57,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352858057] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:12:57,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1483462411] [2024-11-18 14:12:57,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:12:57,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:12:57,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:12:57,741 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:12:57,743 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-18 14:12:58,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:12:58,016 INFO L255 TraceCheckSpWp]: Trace formula consists of 1094 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-18 14:12:58,020 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:12:58,050 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-18 14:12:58,051 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:12:58,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1483462411] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:12:58,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:12:58,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-18 14:12:58,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724194665] [2024-11-18 14:12:58,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:12:58,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:12:58,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:12:58,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:12:58,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:12:58,053 INFO L87 Difference]: Start difference. First operand 121113 states and 205891 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-18 14:13:04,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:13:04,629 INFO L93 Difference]: Finished difference Result 330349 states and 561544 transitions. [2024-11-18 14:13:04,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:13:04,630 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 138 [2024-11-18 14:13:04,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:13:06,003 INFO L225 Difference]: With dead ends: 330349 [2024-11-18 14:13:06,004 INFO L226 Difference]: Without dead ends: 221959 [2024-11-18 14:13:06,309 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:13:06,310 INFO L432 NwaCegarLoop]: 563 mSDtfsCounter, 96 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 1118 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:13:06,310 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 1118 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:13:06,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221959 states. [2024-11-18 14:13:14,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221959 to 221949. [2024-11-18 14:13:14,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221949 states, 187847 states have (on average 1.5807172858762717) internal successors, (296933), 187856 states have internal predecessors, (296933), 34035 states have call successors, (34035), 60 states have call predecessors, (34035), 66 states have return successors, (43159), 34035 states have call predecessors, (43159), 34034 states have call successors, (43159) [2024-11-18 14:13:15,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221949 states to 221949 states and 374127 transitions. [2024-11-18 14:13:15,581 INFO L78 Accepts]: Start accepts. Automaton has 221949 states and 374127 transitions. Word has length 138 [2024-11-18 14:13:15,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:13:15,582 INFO L471 AbstractCegarLoop]: Abstraction has 221949 states and 374127 transitions. [2024-11-18 14:13:15,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-18 14:13:15,583 INFO L276 IsEmpty]: Start isEmpty. Operand 221949 states and 374127 transitions. [2024-11-18 14:13:15,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-18 14:13:15,799 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:13:15,799 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:13:15,823 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-18 14:13:15,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-18 14:13:16,001 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:13:16,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:13:16,001 INFO L85 PathProgramCache]: Analyzing trace with hash -2038939261, now seen corresponding path program 1 times [2024-11-18 14:13:16,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:13:16,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530455092] [2024-11-18 14:13:16,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:13:16,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:13:16,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:13:16,129 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-18 14:13:16,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:13:16,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530455092] [2024-11-18 14:13:16,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530455092] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:13:16,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1685975940] [2024-11-18 14:13:16,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:13:16,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:13:16,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:13:16,134 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:13:16,137 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-18 14:13:16,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:13:16,398 INFO L255 TraceCheckSpWp]: Trace formula consists of 1099 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-18 14:13:16,401 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:13:16,428 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-18 14:13:16,429 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:13:16,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1685975940] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:13:16,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:13:16,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-18 14:13:16,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165399059] [2024-11-18 14:13:16,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:13:16,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:13:16,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:13:16,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:13:16,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:13:16,432 INFO L87 Difference]: Start difference. First operand 221949 states and 374127 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14)