./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec4_product28.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/email_spec4_product28.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 619b5b07f7bee6d460265c38ff6f46d0f3c88b87f6fc28a24021d9529c74e42f --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 01:56:56,889 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 01:56:56,946 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 01:56:56,951 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 01:56:56,951 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 01:56:56,972 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 01:56:56,973 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 01:56:56,973 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 01:56:56,974 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 01:56:56,974 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 01:56:56,974 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 01:56:56,975 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 01:56:56,975 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 01:56:56,976 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 01:56:56,976 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 01:56:56,977 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 01:56:56,977 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 01:56:56,977 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 01:56:56,977 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 01:56:56,978 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 01:56:56,978 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 01:56:56,980 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 01:56:56,980 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 01:56:56,980 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 01:56:56,981 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 01:56:56,981 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 01:56:56,981 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 01:56:56,981 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 01:56:56,982 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 01:56:56,982 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 01:56:56,982 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 01:56:56,983 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 01:56:56,983 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 01:56:56,983 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 01:56:56,983 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 01:56:56,983 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 01:56:56,984 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 01:56:56,984 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 01:56:56,984 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 01:56:56,984 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 01:56:56,984 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 01:56:56,985 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 01:56:56,985 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 619b5b07f7bee6d460265c38ff6f46d0f3c88b87f6fc28a24021d9529c74e42f [2024-11-22 01:56:57,211 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 01:56:57,236 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 01:56:57,238 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 01:56:57,239 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 01:56:57,240 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 01:56:57,241 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec4_product28.cil.c [2024-11-22 01:56:58,600 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 01:56:58,884 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 01:56:58,885 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec4_product28.cil.c [2024-11-22 01:56:58,907 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9243a09f2/5386c75e334543848b1f4b89083c9eef/FLAGbf9f3290e [2024-11-22 01:56:59,172 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9243a09f2/5386c75e334543848b1f4b89083c9eef [2024-11-22 01:56:59,174 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 01:56:59,175 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 01:56:59,177 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 01:56:59,177 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 01:56:59,181 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 01:56:59,182 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:56:59" (1/1) ... [2024-11-22 01:56:59,184 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39cea63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:59, skipping insertion in model container [2024-11-22 01:56:59,185 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:56:59" (1/1) ... [2024-11-22 01:56:59,234 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 01:56:59,503 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_product28.cil.c[8467,8480] [2024-11-22 01:56:59,733 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 01:56:59,756 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 01:56:59,765 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [48] [2024-11-22 01:56:59,767 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [97] [2024-11-22 01:56:59,767 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [445] [2024-11-22 01:56:59,767 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [454] [2024-11-22 01:56:59,768 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [471] [2024-11-22 01:56:59,768 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [871] [2024-11-22 01:56:59,768 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1092] [2024-11-22 01:56:59,768 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2167] [2024-11-22 01:56:59,768 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2303] [2024-11-22 01:56:59,769 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignForward_spec.i","") [2568] [2024-11-22 01:56:59,769 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2595] [2024-11-22 01:56:59,798 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_product28.cil.c[8467,8480] [2024-11-22 01:57:00,065 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 01:57:00,104 INFO L204 MainTranslator]: Completed translation [2024-11-22 01:57:00,105 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:57:00 WrapperNode [2024-11-22 01:57:00,105 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 01:57:00,106 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 01:57:00,106 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 01:57:00,106 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 01:57:00,112 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:57:00" (1/1) ... [2024-11-22 01:57:00,136 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:57:00" (1/1) ... [2024-11-22 01:57:00,187 INFO L138 Inliner]: procedures = 128, calls = 196, calls flagged for inlining = 55, calls inlined = 45, statements flattened = 859 [2024-11-22 01:57:00,187 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 01:57:00,188 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 01:57:00,188 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 01:57:00,188 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 01:57:00,203 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:57:00" (1/1) ... [2024-11-22 01:57:00,203 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:57:00" (1/1) ... [2024-11-22 01:57:00,208 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:57:00" (1/1) ... [2024-11-22 01:57:00,231 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4]. 29 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0]. [2024-11-22 01:57:00,232 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:57:00" (1/1) ... [2024-11-22 01:57:00,232 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:57:00" (1/1) ... [2024-11-22 01:57:00,248 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:57:00" (1/1) ... [2024-11-22 01:57:00,261 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:57:00" (1/1) ... [2024-11-22 01:57:00,266 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:57:00" (1/1) ... [2024-11-22 01:57:00,268 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:57:00" (1/1) ... [2024-11-22 01:57:00,273 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 01:57:00,274 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 01:57:00,274 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 01:57:00,274 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 01:57:00,275 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:57:00" (1/1) ... [2024-11-22 01:57:00,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 01:57:00,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:57:00,318 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 01:57:00,322 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 01:57:00,364 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-11-22 01:57:00,365 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-11-22 01:57:00,365 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-11-22 01:57:00,365 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-11-22 01:57:00,365 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-11-22 01:57:00,365 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-11-22 01:57:00,365 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-22 01:57:00,366 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-22 01:57:00,366 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-22 01:57:00,366 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-22 01:57:00,367 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-22 01:57:00,367 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-22 01:57:00,367 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-22 01:57:00,367 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-22 01:57:00,367 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-11-22 01:57:00,367 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-11-22 01:57:00,368 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-22 01:57:00,368 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-22 01:57:00,368 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-22 01:57:00,368 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-22 01:57:00,368 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-22 01:57:00,369 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-22 01:57:00,370 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-22 01:57:00,370 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-22 01:57:00,370 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 01:57:00,370 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-22 01:57:00,370 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-22 01:57:00,370 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-11-22 01:57:00,370 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-11-22 01:57:00,370 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-22 01:57:00,370 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-22 01:57:00,370 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-22 01:57:00,370 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-22 01:57:00,370 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-22 01:57:00,371 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-22 01:57:00,371 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-11-22 01:57:00,371 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-11-22 01:57:00,371 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-22 01:57:00,371 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-22 01:57:00,371 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-11-22 01:57:00,371 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-11-22 01:57:00,371 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-22 01:57:00,371 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-22 01:57:00,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 01:57:00,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-22 01:57:00,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-22 01:57:00,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-22 01:57:00,371 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-22 01:57:00,371 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-22 01:57:00,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 01:57:00,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 01:57:00,514 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 01:57:00,517 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 01:57:01,284 INFO L? ?]: Removed 399 outVars from TransFormulas that were not future-live. [2024-11-22 01:57:01,284 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 01:57:01,309 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 01:57:01,311 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 01:57:01,311 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:57:01 BoogieIcfgContainer [2024-11-22 01:57:01,312 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 01:57:01,313 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 01:57:01,314 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 01:57:01,317 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 01:57:01,318 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:56:59" (1/3) ... [2024-11-22 01:57:01,318 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@221dbb35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:57:01, skipping insertion in model container [2024-11-22 01:57:01,319 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:57:00" (2/3) ... [2024-11-22 01:57:01,319 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@221dbb35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:57:01, skipping insertion in model container [2024-11-22 01:57:01,319 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:57:01" (3/3) ... [2024-11-22 01:57:01,320 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec4_product28.cil.c [2024-11-22 01:57:01,334 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 01:57:01,334 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 01:57:01,405 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 01:57:01,411 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;@6d05302d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 01:57:01,412 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 01:57:01,420 INFO L276 IsEmpty]: Start isEmpty. Operand has 327 states, 253 states have (on average 1.5217391304347827) internal successors, (385), 257 states have internal predecessors, (385), 50 states have call successors, (50), 22 states have call predecessors, (50), 22 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-22 01:57:01,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-22 01:57:01,439 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:57:01,440 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:57:01,441 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:57:01,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:57:01,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1302958000, now seen corresponding path program 1 times [2024-11-22 01:57:01,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:57:01,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931540741] [2024-11-22 01:57:01,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:57:01,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:57:01,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:57:02,080 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-22 01:57:02,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:57:02,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931540741] [2024-11-22 01:57:02,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931540741] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:57:02,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [586556880] [2024-11-22 01:57:02,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:57:02,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:57:02,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:57:02,087 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:57:02,094 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 01:57:02,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:57:02,376 INFO L255 TraceCheckSpWp]: Trace formula consists of 985 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-22 01:57:02,382 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:57:02,399 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-22 01:57:02,401 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:57:02,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [586556880] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:57:02,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:57:02,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 5 [2024-11-22 01:57:02,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414815489] [2024-11-22 01:57:02,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:57:02,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 01:57:02,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:57:02,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 01:57:02,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:57:02,435 INFO L87 Difference]: Start difference. First operand has 327 states, 253 states have (on average 1.5217391304347827) internal successors, (385), 257 states have internal predecessors, (385), 50 states have call successors, (50), 22 states have call predecessors, (50), 22 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) Second operand has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-22 01:57:02,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:57:02,485 INFO L93 Difference]: Finished difference Result 505 states and 732 transitions. [2024-11-22 01:57:02,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 01:57:02,488 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 104 [2024-11-22 01:57:02,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:57:02,498 INFO L225 Difference]: With dead ends: 505 [2024-11-22 01:57:02,498 INFO L226 Difference]: Without dead ends: 320 [2024-11-22 01:57:02,502 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:57:02,505 INFO L432 NwaCegarLoop]: 481 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, 481 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:57:02,506 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:57:02,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2024-11-22 01:57:02,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 320. [2024-11-22 01:57:02,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 247 states have (on average 1.51417004048583) internal successors, (374), 250 states have internal predecessors, (374), 50 states have call successors, (50), 22 states have call predecessors, (50), 22 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2024-11-22 01:57:02,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 473 transitions. [2024-11-22 01:57:02,557 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 473 transitions. Word has length 104 [2024-11-22 01:57:02,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:57:02,558 INFO L471 AbstractCegarLoop]: Abstraction has 320 states and 473 transitions. [2024-11-22 01:57:02,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-22 01:57:02,559 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 473 transitions. [2024-11-22 01:57:02,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-22 01:57:02,562 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:57:02,563 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:57:02,571 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 01:57:02,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-22 01:57:02,764 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:57:02,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:57:02,764 INFO L85 PathProgramCache]: Analyzing trace with hash 598678511, now seen corresponding path program 1 times [2024-11-22 01:57:02,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:57:02,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433010212] [2024-11-22 01:57:02,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:57:02,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:57:02,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:57:03,009 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-22 01:57:03,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:57:03,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433010212] [2024-11-22 01:57:03,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433010212] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:57:03,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [703786331] [2024-11-22 01:57:03,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:57:03,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:57:03,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:57:03,013 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:57:03,015 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 01:57:03,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:57:03,299 INFO L255 TraceCheckSpWp]: Trace formula consists of 986 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-22 01:57:03,303 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:57:03,327 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-22 01:57:03,327 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:57:03,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [703786331] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:57:03,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:57:03,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-22 01:57:03,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820208932] [2024-11-22 01:57:03,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:57:03,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:57:03,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:57:03,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:57:03,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:57:03,330 INFO L87 Difference]: Start difference. First operand 320 states and 473 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-22 01:57:03,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:57:03,380 INFO L93 Difference]: Finished difference Result 495 states and 713 transitions. [2024-11-22 01:57:03,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:57:03,380 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 105 [2024-11-22 01:57:03,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:57:03,383 INFO L225 Difference]: With dead ends: 495 [2024-11-22 01:57:03,383 INFO L226 Difference]: Without dead ends: 323 [2024-11-22 01:57:03,384 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:57:03,387 INFO L432 NwaCegarLoop]: 471 mSDtfsCounter, 1 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 940 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:57:03,387 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 940 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:57:03,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2024-11-22 01:57:03,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 322. [2024-11-22 01:57:03,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 249 states have (on average 1.5100401606425702) internal successors, (376), 252 states have internal predecessors, (376), 50 states have call successors, (50), 22 states have call predecessors, (50), 22 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2024-11-22 01:57:03,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 475 transitions. [2024-11-22 01:57:03,403 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 475 transitions. Word has length 105 [2024-11-22 01:57:03,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:57:03,404 INFO L471 AbstractCegarLoop]: Abstraction has 322 states and 475 transitions. [2024-11-22 01:57:03,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-22 01:57:03,404 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 475 transitions. [2024-11-22 01:57:03,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-22 01:57:03,406 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:57:03,406 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:57:03,415 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-22 01:57:03,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-22 01:57:03,607 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:57:03,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:57:03,608 INFO L85 PathProgramCache]: Analyzing trace with hash 120398534, now seen corresponding path program 1 times [2024-11-22 01:57:03,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:57:03,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079178006] [2024-11-22 01:57:03,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:57:03,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:57:03,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:57:03,817 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-22 01:57:03,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:57:03,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079178006] [2024-11-22 01:57:03,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079178006] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:57:03,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1282749104] [2024-11-22 01:57:03,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:57:03,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:57:03,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:57:03,822 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:57:03,830 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 01:57:04,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:57:04,122 INFO L255 TraceCheckSpWp]: Trace formula consists of 998 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 01:57:04,126 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:57:04,148 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-22 01:57:04,148 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:57:04,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1282749104] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:57:04,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:57:04,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-22 01:57:04,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333010891] [2024-11-22 01:57:04,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:57:04,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:57:04,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:57:04,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:57:04,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:57:04,151 INFO L87 Difference]: Start difference. First operand 322 states and 475 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-22 01:57:04,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:57:04,179 INFO L93 Difference]: Finished difference Result 669 states and 1001 transitions. [2024-11-22 01:57:04,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:57:04,180 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 111 [2024-11-22 01:57:04,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:57:04,184 INFO L225 Difference]: With dead ends: 669 [2024-11-22 01:57:04,184 INFO L226 Difference]: Without dead ends: 374 [2024-11-22 01:57:04,186 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:57:04,187 INFO L432 NwaCegarLoop]: 486 mSDtfsCounter, 99 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 913 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:57:04,187 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 913 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:57:04,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2024-11-22 01:57:04,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 366. [2024-11-22 01:57:04,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 282 states have (on average 1.524822695035461) internal successors, (430), 285 states have internal predecessors, (430), 61 states have call successors, (61), 22 states have call predecessors, (61), 22 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-22 01:57:04,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 551 transitions. [2024-11-22 01:57:04,216 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 551 transitions. Word has length 111 [2024-11-22 01:57:04,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:57:04,217 INFO L471 AbstractCegarLoop]: Abstraction has 366 states and 551 transitions. [2024-11-22 01:57:04,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-22 01:57:04,217 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 551 transitions. [2024-11-22 01:57:04,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-22 01:57:04,220 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:57:04,220 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] [2024-11-22 01:57:04,234 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-22 01:57:04,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:57:04,423 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:57:04,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:57:04,423 INFO L85 PathProgramCache]: Analyzing trace with hash 1427798971, now seen corresponding path program 1 times [2024-11-22 01:57:04,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:57:04,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124261277] [2024-11-22 01:57:04,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:57:04,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:57:04,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:57:04,563 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-22 01:57:04,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:57:04,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124261277] [2024-11-22 01:57:04,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124261277] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:57:04,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [879654687] [2024-11-22 01:57:04,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:57:04,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:57:04,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:57:04,567 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:57:04,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 01:57:04,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:57:04,769 INFO L255 TraceCheckSpWp]: Trace formula consists of 1003 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-22 01:57:04,778 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:57:04,824 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-22 01:57:04,824 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:57:04,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [879654687] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:57:04,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:57:04,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-22 01:57:04,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734072401] [2024-11-22 01:57:04,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:57:04,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 01:57:04,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:57:04,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 01:57:04,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-22 01:57:04,827 INFO L87 Difference]: Start difference. First operand 366 states and 551 transitions. Second operand has 5 states, 4 states have (on average 18.5) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-22 01:57:04,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:57:04,882 INFO L93 Difference]: Finished difference Result 723 states and 1092 transitions. [2024-11-22 01:57:04,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:57:04,882 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.5) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 112 [2024-11-22 01:57:04,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:57:04,886 INFO L225 Difference]: With dead ends: 723 [2024-11-22 01:57:04,886 INFO L226 Difference]: Without dead ends: 368 [2024-11-22 01:57:04,887 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-22 01:57:04,888 INFO L432 NwaCegarLoop]: 465 mSDtfsCounter, 2 mSDsluCounter, 1384 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1849 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:57:04,888 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1849 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:57:04,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2024-11-22 01:57:04,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 368. [2024-11-22 01:57:04,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 283 states have (on average 1.5229681978798586) internal successors, (431), 287 states have internal predecessors, (431), 61 states have call successors, (61), 22 states have call predecessors, (61), 23 states have return successors, (62), 60 states have call predecessors, (62), 60 states have call successors, (62) [2024-11-22 01:57:04,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 554 transitions. [2024-11-22 01:57:04,911 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 554 transitions. Word has length 112 [2024-11-22 01:57:04,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:57:04,913 INFO L471 AbstractCegarLoop]: Abstraction has 368 states and 554 transitions. [2024-11-22 01:57:04,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.5) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-22 01:57:04,913 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 554 transitions. [2024-11-22 01:57:04,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-22 01:57:04,917 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:57:04,917 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] [2024-11-22 01:57:04,926 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-22 01:57:05,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:57:05,118 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:57:05,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:57:05,118 INFO L85 PathProgramCache]: Analyzing trace with hash -221648282, now seen corresponding path program 1 times [2024-11-22 01:57:05,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:57:05,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103348957] [2024-11-22 01:57:05,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:57:05,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:57:05,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:57:05,247 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-22 01:57:05,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:57:05,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103348957] [2024-11-22 01:57:05,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103348957] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:57:05,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [680914932] [2024-11-22 01:57:05,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:57:05,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:57:05,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:57:05,250 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:57:05,251 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-22 01:57:05,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:57:05,471 INFO L255 TraceCheckSpWp]: Trace formula consists of 1004 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-22 01:57:05,474 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:57:05,516 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-22 01:57:05,517 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:57:05,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [680914932] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:57:05,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:57:05,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2024-11-22 01:57:05,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753315811] [2024-11-22 01:57:05,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:57:05,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 01:57:05,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:57:05,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 01:57:05,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-22 01:57:05,518 INFO L87 Difference]: Start difference. First operand 368 states and 554 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-22 01:57:05,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:57:05,577 INFO L93 Difference]: Finished difference Result 725 states and 1097 transitions. [2024-11-22 01:57:05,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:57:05,579 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 113 [2024-11-22 01:57:05,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:57:05,581 INFO L225 Difference]: With dead ends: 725 [2024-11-22 01:57:05,581 INFO L226 Difference]: Without dead ends: 370 [2024-11-22 01:57:05,582 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-22 01:57:05,584 INFO L432 NwaCegarLoop]: 463 mSDtfsCounter, 2 mSDsluCounter, 1372 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1835 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:57:05,585 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1835 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:57:05,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2024-11-22 01:57:05,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 370. [2024-11-22 01:57:05,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 284 states have (on average 1.5211267605633803) internal successors, (432), 289 states have internal predecessors, (432), 61 states have call successors, (61), 22 states have call predecessors, (61), 24 states have return successors, (67), 60 states have call predecessors, (67), 60 states have call successors, (67) [2024-11-22 01:57:05,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 560 transitions. [2024-11-22 01:57:05,606 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 560 transitions. Word has length 113 [2024-11-22 01:57:05,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:57:05,607 INFO L471 AbstractCegarLoop]: Abstraction has 370 states and 560 transitions. [2024-11-22 01:57:05,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-22 01:57:05,607 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 560 transitions. [2024-11-22 01:57:05,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-22 01:57:05,610 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:57:05,610 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] [2024-11-22 01:57:05,618 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-22 01:57:05,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:57:05,811 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:57:05,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:57:05,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1645047527, now seen corresponding path program 1 times [2024-11-22 01:57:05,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:57:05,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111159647] [2024-11-22 01:57:05,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:57:05,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:57:05,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:57:05,911 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-22 01:57:05,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:57:05,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111159647] [2024-11-22 01:57:05,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111159647] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:57:05,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:57:05,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 01:57:05,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552509256] [2024-11-22 01:57:05,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:57:05,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 01:57:05,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:57:05,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 01:57:05,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:57:05,914 INFO L87 Difference]: Start difference. First operand 370 states and 560 transitions. Second operand has 5 states, 4 states have (on average 18.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-22 01:57:05,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:57:05,951 INFO L93 Difference]: Finished difference Result 717 states and 1088 transitions. [2024-11-22 01:57:05,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:57:05,951 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 114 [2024-11-22 01:57:05,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:57:05,953 INFO L225 Difference]: With dead ends: 717 [2024-11-22 01:57:05,953 INFO L226 Difference]: Without dead ends: 370 [2024-11-22 01:57:05,956 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:57:05,957 INFO L432 NwaCegarLoop]: 466 mSDtfsCounter, 2 mSDsluCounter, 1387 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1853 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:57:05,958 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1853 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:57:05,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2024-11-22 01:57:05,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 370. [2024-11-22 01:57:05,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 284 states have (on average 1.5211267605633803) internal successors, (432), 289 states have internal predecessors, (432), 61 states have call successors, (61), 22 states have call predecessors, (61), 24 states have return successors, (66), 60 states have call predecessors, (66), 60 states have call successors, (66) [2024-11-22 01:57:05,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 559 transitions. [2024-11-22 01:57:05,973 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 559 transitions. Word has length 114 [2024-11-22 01:57:05,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:57:05,973 INFO L471 AbstractCegarLoop]: Abstraction has 370 states and 559 transitions. [2024-11-22 01:57:05,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-22 01:57:05,974 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 559 transitions. [2024-11-22 01:57:05,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-22 01:57:05,979 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:57:05,979 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] [2024-11-22 01:57:05,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 01:57:05,979 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:57:05,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:57:05,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1269941286, now seen corresponding path program 2 times [2024-11-22 01:57:05,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:57:05,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345755652] [2024-11-22 01:57:05,980 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 01:57:05,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:57:06,001 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 01:57:06,003 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 01:57:06,129 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-22 01:57:06,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:57:06,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345755652] [2024-11-22 01:57:06,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345755652] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:57:06,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:57:06,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 01:57:06,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130248991] [2024-11-22 01:57:06,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:57:06,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 01:57:06,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:57:06,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 01:57:06,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-22 01:57:06,132 INFO L87 Difference]: Start difference. First operand 370 states and 559 transitions. Second operand has 8 states, 8 states have (on average 9.25) internal successors, (74), 7 states have internal predecessors, (74), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-22 01:57:06,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:57:06,427 INFO L93 Difference]: Finished difference Result 649 states and 1010 transitions. [2024-11-22 01:57:06,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-22 01:57:06,427 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 7 states have internal predecessors, (74), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) Word has length 115 [2024-11-22 01:57:06,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:57:06,434 INFO L225 Difference]: With dead ends: 649 [2024-11-22 01:57:06,435 INFO L226 Difference]: Without dead ends: 645 [2024-11-22 01:57:06,435 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 [2024-11-22 01:57:06,436 INFO L432 NwaCegarLoop]: 487 mSDtfsCounter, 458 mSDsluCounter, 2479 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 462 SdHoareTripleChecker+Valid, 2966 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 01:57:06,436 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [462 Valid, 2966 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 01:57:06,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 645 states. [2024-11-22 01:57:06,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 645 to 637. [2024-11-22 01:57:06,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 637 states, 494 states have (on average 1.5546558704453441) internal successors, (768), 500 states have internal predecessors, (768), 103 states have call successors, (103), 38 states have call predecessors, (103), 39 states have return successors, (119), 101 states have call predecessors, (119), 102 states have call successors, (119) [2024-11-22 01:57:06,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 990 transitions. [2024-11-22 01:57:06,462 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 990 transitions. Word has length 115 [2024-11-22 01:57:06,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:57:06,463 INFO L471 AbstractCegarLoop]: Abstraction has 637 states and 990 transitions. [2024-11-22 01:57:06,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 7 states have internal predecessors, (74), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-22 01:57:06,463 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 990 transitions. [2024-11-22 01:57:06,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-22 01:57:06,465 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:57:06,465 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] [2024-11-22 01:57:06,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 01:57:06,465 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:57:06,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:57:06,466 INFO L85 PathProgramCache]: Analyzing trace with hash 883607737, now seen corresponding path program 1 times [2024-11-22 01:57:06,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:57:06,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760036334] [2024-11-22 01:57:06,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:57:06,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:57:06,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:57:06,618 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-22 01:57:06,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:57:06,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760036334] [2024-11-22 01:57:06,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760036334] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:57:06,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:57:06,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 01:57:06,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086401997] [2024-11-22 01:57:06,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:57:06,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 01:57:06,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:57:06,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 01:57:06,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:57:06,621 INFO L87 Difference]: Start difference. First operand 637 states and 990 transitions. Second operand has 5 states, 4 states have (on average 18.75) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-22 01:57:06,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:57:06,669 INFO L93 Difference]: Finished difference Result 1243 states and 1940 transitions. [2024-11-22 01:57:06,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:57:06,670 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.75) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 116 [2024-11-22 01:57:06,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:57:06,674 INFO L225 Difference]: With dead ends: 1243 [2024-11-22 01:57:06,674 INFO L226 Difference]: Without dead ends: 641 [2024-11-22 01:57:06,675 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:57:06,676 INFO L432 NwaCegarLoop]: 467 mSDtfsCounter, 1 mSDsluCounter, 1389 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1856 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:57:06,677 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1856 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:57:06,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2024-11-22 01:57:06,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 641. [2024-11-22 01:57:06,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 496 states have (on average 1.5524193548387097) internal successors, (770), 504 states have internal predecessors, (770), 103 states have call successors, (103), 38 states have call predecessors, (103), 41 states have return successors, (122), 101 states have call predecessors, (122), 102 states have call successors, (122) [2024-11-22 01:57:06,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 995 transitions. [2024-11-22 01:57:06,719 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 995 transitions. Word has length 116 [2024-11-22 01:57:06,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:57:06,719 INFO L471 AbstractCegarLoop]: Abstraction has 641 states and 995 transitions. [2024-11-22 01:57:06,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.75) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-22 01:57:06,720 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 995 transitions. [2024-11-22 01:57:06,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-22 01:57:06,722 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:57:06,722 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, 1] [2024-11-22 01:57:06,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 01:57:06,726 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:57:06,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:57:06,726 INFO L85 PathProgramCache]: Analyzing trace with hash 297069377, now seen corresponding path program 1 times [2024-11-22 01:57:06,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:57:06,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654042401] [2024-11-22 01:57:06,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:57:06,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:57:06,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:57:06,826 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 01:57:06,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:57:06,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654042401] [2024-11-22 01:57:06,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654042401] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:57:06,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2123805634] [2024-11-22 01:57:06,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:57:06,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:57:06,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:57:06,829 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:57:06,830 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-22 01:57:07,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:57:07,042 INFO L255 TraceCheckSpWp]: Trace formula consists of 1010 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-22 01:57:07,047 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:57:07,087 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-22 01:57:07,087 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:57:07,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2123805634] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:57:07,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:57:07,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-22 01:57:07,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768397275] [2024-11-22 01:57:07,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:57:07,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 01:57:07,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:57:07,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 01:57:07,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-22 01:57:07,089 INFO L87 Difference]: Start difference. First operand 641 states and 995 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-22 01:57:07,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:57:07,144 INFO L93 Difference]: Finished difference Result 1263 states and 1968 transitions. [2024-11-22 01:57:07,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:57:07,146 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 119 [2024-11-22 01:57:07,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:57:07,150 INFO L225 Difference]: With dead ends: 1263 [2024-11-22 01:57:07,150 INFO L226 Difference]: Without dead ends: 647 [2024-11-22 01:57:07,152 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-22 01:57:07,153 INFO L432 NwaCegarLoop]: 467 mSDtfsCounter, 1 mSDsluCounter, 1383 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1850 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 [2024-11-22 01:57:07,153 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1850 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:57:07,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647 states. [2024-11-22 01:57:07,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647 to 643. [2024-11-22 01:57:07,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 643 states, 497 states have (on average 1.551307847082495) internal successors, (771), 506 states have internal predecessors, (771), 103 states have call successors, (103), 38 states have call predecessors, (103), 42 states have return successors, (125), 101 states have call predecessors, (125), 102 states have call successors, (125) [2024-11-22 01:57:07,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 999 transitions. [2024-11-22 01:57:07,175 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 999 transitions. Word has length 119 [2024-11-22 01:57:07,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:57:07,175 INFO L471 AbstractCegarLoop]: Abstraction has 643 states and 999 transitions. [2024-11-22 01:57:07,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-22 01:57:07,175 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 999 transitions. [2024-11-22 01:57:07,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-22 01:57:07,178 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:57:07,178 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, 1] [2024-11-22 01:57:07,186 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-22 01:57:07,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:57:07,379 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:57:07,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:57:07,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1605095019, now seen corresponding path program 1 times [2024-11-22 01:57:07,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:57:07,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965561704] [2024-11-22 01:57:07,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:57:07,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:57:07,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:57:07,484 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 01:57:07,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:57:07,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965561704] [2024-11-22 01:57:07,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965561704] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:57:07,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2125208795] [2024-11-22 01:57:07,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:57:07,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:57:07,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:57:07,488 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:57:07,489 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-22 01:57:07,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:57:07,775 INFO L255 TraceCheckSpWp]: Trace formula consists of 1008 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-22 01:57:07,779 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:57:07,813 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 01:57:07,814 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:57:07,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2125208795] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:57:07,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:57:07,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-22 01:57:07,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092268756] [2024-11-22 01:57:07,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:57:07,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 01:57:07,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:57:07,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 01:57:07,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-22 01:57:07,818 INFO L87 Difference]: Start difference. First operand 643 states and 999 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-22 01:57:07,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:57:07,866 INFO L93 Difference]: Finished difference Result 1249 states and 1949 transitions. [2024-11-22 01:57:07,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:57:07,867 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 120 [2024-11-22 01:57:07,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:57:07,871 INFO L225 Difference]: With dead ends: 1249 [2024-11-22 01:57:07,871 INFO L226 Difference]: Without dead ends: 649 [2024-11-22 01:57:07,873 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-22 01:57:07,874 INFO L432 NwaCegarLoop]: 463 mSDtfsCounter, 1 mSDsluCounter, 1372 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1835 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 [2024-11-22 01:57:07,875 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1835 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:57:07,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2024-11-22 01:57:07,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 647. [2024-11-22 01:57:07,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 647 states, 499 states have (on average 1.5490981963927857) internal successors, (773), 510 states have internal predecessors, (773), 103 states have call successors, (103), 38 states have call predecessors, (103), 44 states have return successors, (129), 101 states have call predecessors, (129), 102 states have call successors, (129) [2024-11-22 01:57:07,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 647 states and 1005 transitions. [2024-11-22 01:57:07,897 INFO L78 Accepts]: Start accepts. Automaton has 647 states and 1005 transitions. Word has length 120 [2024-11-22 01:57:07,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:57:07,897 INFO L471 AbstractCegarLoop]: Abstraction has 647 states and 1005 transitions. [2024-11-22 01:57:07,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-22 01:57:07,898 INFO L276 IsEmpty]: Start isEmpty. Operand 647 states and 1005 transitions. [2024-11-22 01:57:07,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-22 01:57:07,900 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:57:07,900 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] [2024-11-22 01:57:07,913 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-22 01:57:08,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:57:08,101 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:57:08,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:57:08,101 INFO L85 PathProgramCache]: Analyzing trace with hash -569873104, now seen corresponding path program 1 times [2024-11-22 01:57:08,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:57:08,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302810324] [2024-11-22 01:57:08,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:57:08,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:57:08,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:57:08,177 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-22 01:57:08,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:57:08,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302810324] [2024-11-22 01:57:08,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302810324] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:57:08,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [139469484] [2024-11-22 01:57:08,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:57:08,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:57:08,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:57:08,180 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) [2024-11-22 01:57:08,181 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-22 01:57:08,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:57:08,388 INFO L255 TraceCheckSpWp]: Trace formula consists of 1010 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 01:57:08,391 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:57:08,416 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-22 01:57:08,417 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 01:57:08,494 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-22 01:57:08,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [139469484] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 01:57:08,495 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 01:57:08,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-22 01:57:08,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466709776] [2024-11-22 01:57:08,495 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 01:57:08,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 01:57:08,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:57:08,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 01:57:08,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:57:08,497 INFO L87 Difference]: Start difference. First operand 647 states and 1005 transitions. Second operand has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 7 states have internal predecessors, (108), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-22 01:57:08,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:57:08,673 INFO L93 Difference]: Finished difference Result 1531 states and 2478 transitions. [2024-11-22 01:57:08,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 01:57:08,673 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 7 states have internal predecessors, (108), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 119 [2024-11-22 01:57:08,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:57:08,681 INFO L225 Difference]: With dead ends: 1531 [2024-11-22 01:57:08,682 INFO L226 Difference]: Without dead ends: 1283 [2024-11-22 01:57:08,683 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:57:08,684 INFO L432 NwaCegarLoop]: 500 mSDtfsCounter, 381 mSDsluCounter, 1651 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 2151 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:57:08,684 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [426 Valid, 2151 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:57:08,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1283 states. [2024-11-22 01:57:08,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1283 to 1253. [2024-11-22 01:57:08,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1253 states, 977 states have (on average 1.6059365404298873) internal successors, (1569), 988 states have internal predecessors, (1569), 231 states have call successors, (231), 38 states have call predecessors, (231), 44 states have return successors, (282), 229 states have call predecessors, (282), 230 states have call successors, (282) [2024-11-22 01:57:08,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1253 states to 1253 states and 2082 transitions. [2024-11-22 01:57:08,737 INFO L78 Accepts]: Start accepts. Automaton has 1253 states and 2082 transitions. Word has length 119 [2024-11-22 01:57:08,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:57:08,738 INFO L471 AbstractCegarLoop]: Abstraction has 1253 states and 2082 transitions. [2024-11-22 01:57:08,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 7 states have internal predecessors, (108), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-22 01:57:08,738 INFO L276 IsEmpty]: Start isEmpty. Operand 1253 states and 2082 transitions. [2024-11-22 01:57:08,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-22 01:57:08,745 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:57:08,745 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:57:08,761 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-22 01:57:08,948 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,SelfDestructingSolverStorable10 [2024-11-22 01:57:08,949 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:57:08,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:57:08,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1638528269, now seen corresponding path program 1 times [2024-11-22 01:57:08,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:57:08,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264014199] [2024-11-22 01:57:08,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:57:08,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:57:08,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:57:09,010 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-22 01:57:09,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:57:09,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264014199] [2024-11-22 01:57:09,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264014199] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:57:09,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:57:09,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:57:09,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528633098] [2024-11-22 01:57:09,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:57:09,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:57:09,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:57:09,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:57:09,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:57:09,013 INFO L87 Difference]: Start difference. First operand 1253 states and 2082 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-22 01:57:09,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:57:09,057 INFO L93 Difference]: Finished difference Result 2991 states and 5043 transitions. [2024-11-22 01:57:09,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:57:09,057 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 125 [2024-11-22 01:57:09,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:57:09,068 INFO L225 Difference]: With dead ends: 2991 [2024-11-22 01:57:09,068 INFO L226 Difference]: Without dead ends: 1863 [2024-11-22 01:57:09,073 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:57:09,073 INFO L432 NwaCegarLoop]: 485 mSDtfsCounter, 97 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 954 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:57:09,074 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 954 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:57:09,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1863 states. [2024-11-22 01:57:09,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1863 to 1853. [2024-11-22 01:57:09,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1853 states, 1449 states have (on average 1.614216701173223) internal successors, (2339), 1460 states have internal predecessors, (2339), 359 states have call successors, (359), 38 states have call predecessors, (359), 44 states have return successors, (435), 357 states have call predecessors, (435), 358 states have call successors, (435) [2024-11-22 01:57:09,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1853 states to 1853 states and 3133 transitions. [2024-11-22 01:57:09,141 INFO L78 Accepts]: Start accepts. Automaton has 1853 states and 3133 transitions. Word has length 125 [2024-11-22 01:57:09,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:57:09,141 INFO L471 AbstractCegarLoop]: Abstraction has 1853 states and 3133 transitions. [2024-11-22 01:57:09,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-22 01:57:09,141 INFO L276 IsEmpty]: Start isEmpty. Operand 1853 states and 3133 transitions. [2024-11-22 01:57:09,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-22 01:57:09,150 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:57:09,150 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] [2024-11-22 01:57:09,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 01:57:09,150 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:57:09,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:57:09,151 INFO L85 PathProgramCache]: Analyzing trace with hash 886077805, now seen corresponding path program 1 times [2024-11-22 01:57:09,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:57:09,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959217524] [2024-11-22 01:57:09,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:57:09,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:57:09,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:57:09,226 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-22 01:57:09,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:57:09,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959217524] [2024-11-22 01:57:09,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959217524] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:57:09,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:57:09,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:57:09,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171836686] [2024-11-22 01:57:09,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:57:09,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:57:09,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:57:09,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:57:09,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:57:09,229 INFO L87 Difference]: Start difference. First operand 1853 states and 3133 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-22 01:57:09,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:57:09,318 INFO L93 Difference]: Finished difference Result 4421 states and 7526 transitions. [2024-11-22 01:57:09,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:57:09,319 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 126 [2024-11-22 01:57:09,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:57:09,335 INFO L225 Difference]: With dead ends: 4421 [2024-11-22 01:57:09,335 INFO L226 Difference]: Without dead ends: 2799 [2024-11-22 01:57:09,343 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:57:09,344 INFO L432 NwaCegarLoop]: 474 mSDtfsCounter, 95 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 940 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:57:09,344 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 940 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:57:09,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2799 states. [2024-11-22 01:57:09,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2799 to 2789. [2024-11-22 01:57:09,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2789 states, 2195 states have (on average 1.6186788154897493) internal successors, (3553), 2206 states have internal predecessors, (3553), 549 states have call successors, (549), 38 states have call predecessors, (549), 44 states have return successors, (641), 547 states have call predecessors, (641), 548 states have call successors, (641) [2024-11-22 01:57:09,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2789 states to 2789 states and 4743 transitions. [2024-11-22 01:57:09,440 INFO L78 Accepts]: Start accepts. Automaton has 2789 states and 4743 transitions. Word has length 126 [2024-11-22 01:57:09,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:57:09,440 INFO L471 AbstractCegarLoop]: Abstraction has 2789 states and 4743 transitions. [2024-11-22 01:57:09,440 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-22 01:57:09,441 INFO L276 IsEmpty]: Start isEmpty. Operand 2789 states and 4743 transitions. [2024-11-22 01:57:09,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-22 01:57:09,453 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:57:09,453 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:57:09,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 01:57:09,453 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:57:09,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:57:09,454 INFO L85 PathProgramCache]: Analyzing trace with hash 902753558, now seen corresponding path program 1 times [2024-11-22 01:57:09,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:57:09,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094496902] [2024-11-22 01:57:09,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:57:09,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:57:09,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:57:09,546 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-22 01:57:09,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:57:09,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094496902] [2024-11-22 01:57:09,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094496902] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:57:09,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [309567378] [2024-11-22 01:57:09,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:57:09,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:57:09,547 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:57:09,549 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) [2024-11-22 01:57:09,550 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-22 01:57:09,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:57:09,784 INFO L255 TraceCheckSpWp]: Trace formula consists of 1020 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 01:57:09,787 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:57:09,803 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-22 01:57:09,803 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:57:09,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [309567378] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:57:09,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:57:09,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-22 01:57:09,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365194425] [2024-11-22 01:57:09,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:57:09,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:57:09,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:57:09,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:57:09,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:57:09,805 INFO L87 Difference]: Start difference. First operand 2789 states and 4743 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-22 01:57:09,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:57:09,891 INFO L93 Difference]: Finished difference Result 6515 states and 11174 transitions. [2024-11-22 01:57:09,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:57:09,892 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 129 [2024-11-22 01:57:09,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:57:09,921 INFO L225 Difference]: With dead ends: 6515 [2024-11-22 01:57:09,921 INFO L226 Difference]: Without dead ends: 4207 [2024-11-22 01:57:09,934 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:57:09,935 INFO L432 NwaCegarLoop]: 472 mSDtfsCounter, 93 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 935 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:57:09,935 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 935 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:57:09,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4207 states. [2024-11-22 01:57:10,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4207 to 4197. [2024-11-22 01:57:10,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4197 states, 3357 states have (on average 1.6225796842418827) internal successors, (5447), 3368 states have internal predecessors, (5447), 795 states have call successors, (795), 38 states have call predecessors, (795), 44 states have return successors, (937), 793 states have call predecessors, (937), 794 states have call successors, (937) [2024-11-22 01:57:10,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4197 states to 4197 states and 7179 transitions. [2024-11-22 01:57:10,225 INFO L78 Accepts]: Start accepts. Automaton has 4197 states and 7179 transitions. Word has length 129 [2024-11-22 01:57:10,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:57:10,226 INFO L471 AbstractCegarLoop]: Abstraction has 4197 states and 7179 transitions. [2024-11-22 01:57:10,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-22 01:57:10,226 INFO L276 IsEmpty]: Start isEmpty. Operand 4197 states and 7179 transitions. [2024-11-22 01:57:10,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-22 01:57:10,249 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:57:10,249 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] [2024-11-22 01:57:10,261 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-22 01:57:10,450 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,SelfDestructingSolverStorable13 [2024-11-22 01:57:10,450 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:57:10,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:57:10,451 INFO L85 PathProgramCache]: Analyzing trace with hash -1544711346, now seen corresponding path program 1 times [2024-11-22 01:57:10,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:57:10,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013414611] [2024-11-22 01:57:10,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:57:10,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:57:10,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:57:10,504 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-22 01:57:10,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:57:10,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013414611] [2024-11-22 01:57:10,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013414611] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:57:10,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:57:10,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:57:10,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212315561] [2024-11-22 01:57:10,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:57:10,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:57:10,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:57:10,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:57:10,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:57:10,507 INFO L87 Difference]: Start difference. First operand 4197 states and 7179 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-22 01:57:10,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:57:10,629 INFO L93 Difference]: Finished difference Result 9753 states and 16820 transitions. [2024-11-22 01:57:10,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:57:10,630 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 128 [2024-11-22 01:57:10,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:57:10,663 INFO L225 Difference]: With dead ends: 9753 [2024-11-22 01:57:10,664 INFO L226 Difference]: Without dead ends: 6445 [2024-11-22 01:57:10,680 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:57:10,681 INFO L432 NwaCegarLoop]: 472 mSDtfsCounter, 91 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 935 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:57:10,681 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 935 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:57:10,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6445 states. [2024-11-22 01:57:11,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6445 to 6435. [2024-11-22 01:57:11,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6435 states, 5237 states have (on average 1.6247851823563109) internal successors, (8509), 5248 states have internal predecessors, (8509), 1153 states have call successors, (1153), 38 states have call predecessors, (1153), 44 states have return successors, (1378), 1151 states have call predecessors, (1378), 1152 states have call successors, (1378) [2024-11-22 01:57:11,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6435 states to 6435 states and 11040 transitions. [2024-11-22 01:57:11,080 INFO L78 Accepts]: Start accepts. Automaton has 6435 states and 11040 transitions. Word has length 128 [2024-11-22 01:57:11,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:57:11,080 INFO L471 AbstractCegarLoop]: Abstraction has 6435 states and 11040 transitions. [2024-11-22 01:57:11,081 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-22 01:57:11,081 INFO L276 IsEmpty]: Start isEmpty. Operand 6435 states and 11040 transitions. [2024-11-22 01:57:11,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-22 01:57:11,109 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:57:11,110 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] [2024-11-22 01:57:11,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 01:57:11,110 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:57:11,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:57:11,110 INFO L85 PathProgramCache]: Analyzing trace with hash 908851435, now seen corresponding path program 1 times [2024-11-22 01:57:11,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:57:11,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480669026] [2024-11-22 01:57:11,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:57:11,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:57:11,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:57:11,196 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-22 01:57:11,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:57:11,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480669026] [2024-11-22 01:57:11,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480669026] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:57:11,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:57:11,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:57:11,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390434534] [2024-11-22 01:57:11,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:57:11,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:57:11,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:57:11,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:57:11,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:57:11,199 INFO L87 Difference]: Start difference. First operand 6435 states and 11040 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-22 01:57:11,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:57:11,561 INFO L93 Difference]: Finished difference Result 15589 states and 26909 transitions. [2024-11-22 01:57:11,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:57:11,562 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 129 [2024-11-22 01:57:11,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:57:11,644 INFO L225 Difference]: With dead ends: 15589 [2024-11-22 01:57:11,645 INFO L226 Difference]: Without dead ends: 10507 [2024-11-22 01:57:11,673 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:57:11,674 INFO L432 NwaCegarLoop]: 475 mSDtfsCounter, 89 mSDsluCounter, 468 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 943 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:57:11,674 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 943 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:57:11,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10507 states. [2024-11-22 01:57:12,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10507 to 10497. [2024-11-22 01:57:12,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10497 states, 8547 states have (on average 1.616122616122616) internal successors, (13813), 8558 states have internal predecessors, (13813), 1905 states have call successors, (1905), 38 states have call predecessors, (1905), 44 states have return successors, (2274), 1903 states have call predecessors, (2274), 1904 states have call successors, (2274) [2024-11-22 01:57:12,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10497 states to 10497 states and 17992 transitions. [2024-11-22 01:57:12,125 INFO L78 Accepts]: Start accepts. Automaton has 10497 states and 17992 transitions. Word has length 129 [2024-11-22 01:57:12,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:57:12,126 INFO L471 AbstractCegarLoop]: Abstraction has 10497 states and 17992 transitions. [2024-11-22 01:57:12,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-22 01:57:12,127 INFO L276 IsEmpty]: Start isEmpty. Operand 10497 states and 17992 transitions. [2024-11-22 01:57:12,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-22 01:57:12,164 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:57:12,164 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:57:12,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 01:57:12,165 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:57:12,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:57:12,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1641106891, now seen corresponding path program 1 times [2024-11-22 01:57:12,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:57:12,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522369482] [2024-11-22 01:57:12,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:57:12,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:57:12,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:57:12,254 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-22 01:57:12,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:57:12,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522369482] [2024-11-22 01:57:12,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522369482] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:57:12,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [679674582] [2024-11-22 01:57:12,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:57:12,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:57:12,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:57:12,258 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) [2024-11-22 01:57:12,260 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-22 01:57:12,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:57:12,487 INFO L255 TraceCheckSpWp]: Trace formula consists of 1035 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 01:57:12,490 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:57:12,513 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-22 01:57:12,514 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:57:12,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [679674582] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:57:12,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:57:12,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-22 01:57:12,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403134528] [2024-11-22 01:57:12,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:57:12,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:57:12,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:57:12,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:57:12,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:57:12,516 INFO L87 Difference]: Start difference. First operand 10497 states and 17992 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, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-22 01:57:12,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:57:12,934 INFO L93 Difference]: Finished difference Result 25873 states and 44577 transitions. [2024-11-22 01:57:12,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:57:12,935 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, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 132 [2024-11-22 01:57:12,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:57:13,024 INFO L225 Difference]: With dead ends: 25873 [2024-11-22 01:57:13,024 INFO L226 Difference]: Without dead ends: 17483 [2024-11-22 01:57:13,079 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:57:13,080 INFO L432 NwaCegarLoop]: 474 mSDtfsCounter, 87 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 940 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:57:13,080 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 940 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:57:13,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17483 states. [2024-11-22 01:57:13,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17483 to 17473. [2024-11-22 01:57:13,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17473 states, 14311 states have (on average 1.6128153168891062) internal successors, (23081), 14322 states have internal predecessors, (23081), 3117 states have call successors, (3117), 38 states have call predecessors, (3117), 44 states have return successors, (3675), 3115 states have call predecessors, (3675), 3116 states have call successors, (3675) [2024-11-22 01:57:13,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17473 states to 17473 states and 29873 transitions. [2024-11-22 01:57:13,972 INFO L78 Accepts]: Start accepts. Automaton has 17473 states and 29873 transitions. Word has length 132 [2024-11-22 01:57:13,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:57:13,973 INFO L471 AbstractCegarLoop]: Abstraction has 17473 states and 29873 transitions. [2024-11-22 01:57:13,973 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, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-22 01:57:13,973 INFO L276 IsEmpty]: Start isEmpty. Operand 17473 states and 29873 transitions. [2024-11-22 01:57:14,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-22 01:57:14,031 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:57:14,031 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] [2024-11-22 01:57:14,048 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-22 01:57:14,231 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,SelfDestructingSolverStorable16 [2024-11-22 01:57:14,232 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:57:14,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:57:14,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1435169453, now seen corresponding path program 1 times [2024-11-22 01:57:14,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:57:14,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127707594] [2024-11-22 01:57:14,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:57:14,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:57:14,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:57:14,321 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-22 01:57:14,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:57:14,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127707594] [2024-11-22 01:57:14,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127707594] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:57:14,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:57:14,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:57:14,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362318909] [2024-11-22 01:57:14,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:57:14,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:57:14,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:57:14,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:57:14,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:57:14,324 INFO L87 Difference]: Start difference. First operand 17473 states and 29873 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-22 01:57:15,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:57:15,260 INFO L93 Difference]: Finished difference Result 45191 states and 77603 transitions. [2024-11-22 01:57:15,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:57:15,261 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 131 [2024-11-22 01:57:15,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:57:15,385 INFO L225 Difference]: With dead ends: 45191 [2024-11-22 01:57:15,385 INFO L226 Difference]: Without dead ends: 30669 [2024-11-22 01:57:15,426 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:57:15,427 INFO L432 NwaCegarLoop]: 480 mSDtfsCounter, 85 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 949 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:57:15,427 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 949 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:57:15,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30669 states. [2024-11-22 01:57:16,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30669 to 30659. [2024-11-22 01:57:16,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30659 states, 25091 states have (on average 1.602686222151369) internal successors, (40213), 25102 states have internal predecessors, (40213), 5523 states have call successors, (5523), 38 states have call predecessors, (5523), 44 states have return successors, (6506), 5521 states have call predecessors, (6506), 5522 states have call successors, (6506) [2024-11-22 01:57:16,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30659 states to 30659 states and 52242 transitions. [2024-11-22 01:57:16,805 INFO L78 Accepts]: Start accepts. Automaton has 30659 states and 52242 transitions. Word has length 131 [2024-11-22 01:57:16,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:57:16,806 INFO L471 AbstractCegarLoop]: Abstraction has 30659 states and 52242 transitions. [2024-11-22 01:57:16,806 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-22 01:57:16,807 INFO L276 IsEmpty]: Start isEmpty. Operand 30659 states and 52242 transitions. [2024-11-22 01:57:16,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-22 01:57:16,862 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:57:16,862 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] [2024-11-22 01:57:16,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-22 01:57:16,863 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:57:16,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:57:16,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1258807085, now seen corresponding path program 1 times [2024-11-22 01:57:16,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:57:16,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836473171] [2024-11-22 01:57:16,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:57:16,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:57:16,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:57:16,932 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-22 01:57:16,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:57:16,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836473171] [2024-11-22 01:57:16,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836473171] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:57:16,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:57:16,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:57:16,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118667927] [2024-11-22 01:57:16,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:57:16,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:57:16,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:57:16,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:57:16,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:57:16,936 INFO L87 Difference]: Start difference. First operand 30659 states and 52242 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-22 01:57:18,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:57:18,465 INFO L93 Difference]: Finished difference Result 81103 states and 138892 transitions. [2024-11-22 01:57:18,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:57:18,465 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 132 [2024-11-22 01:57:18,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:57:18,667 INFO L225 Difference]: With dead ends: 81103 [2024-11-22 01:57:18,667 INFO L226 Difference]: Without dead ends: 54609 [2024-11-22 01:57:18,749 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:57:18,749 INFO L432 NwaCegarLoop]: 472 mSDtfsCounter, 83 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 938 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:57:18,750 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 938 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:57:19,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54609 states. [2024-11-22 01:57:20,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54609 to 54599. [2024-11-22 01:57:20,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54599 states, 44953 states have (on average 1.5978688852801815) internal successors, (71829), 44964 states have internal predecessors, (71829), 9601 states have call successors, (9601), 38 states have call predecessors, (9601), 44 states have return successors, (11398), 9599 states have call predecessors, (11398), 9600 states have call successors, (11398) [2024-11-22 01:57:21,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54599 states to 54599 states and 92828 transitions. [2024-11-22 01:57:21,439 INFO L78 Accepts]: Start accepts. Automaton has 54599 states and 92828 transitions. Word has length 132 [2024-11-22 01:57:21,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:57:21,440 INFO L471 AbstractCegarLoop]: Abstraction has 54599 states and 92828 transitions. [2024-11-22 01:57:21,440 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-22 01:57:21,440 INFO L276 IsEmpty]: Start isEmpty. Operand 54599 states and 92828 transitions. [2024-11-22 01:57:21,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-22 01:57:21,501 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:57:21,501 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] [2024-11-22 01:57:21,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-22 01:57:21,501 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:57:21,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:57:21,502 INFO L85 PathProgramCache]: Analyzing trace with hash 969290959, now seen corresponding path program 1 times [2024-11-22 01:57:21,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:57:21,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520199353] [2024-11-22 01:57:21,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:57:21,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:57:21,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:57:21,553 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-22 01:57:21,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:57:21,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520199353] [2024-11-22 01:57:21,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520199353] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:57:21,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:57:21,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:57:21,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580070222] [2024-11-22 01:57:21,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:57:21,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:57:21,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:57:21,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:57:21,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:57:21,555 INFO L87 Difference]: Start difference. First operand 54599 states and 92828 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-22 01:57:23,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:57:23,863 INFO L93 Difference]: Finished difference Result 148677 states and 253246 transitions. [2024-11-22 01:57:23,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:57:23,863 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 133 [2024-11-22 01:57:23,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:57:24,281 INFO L225 Difference]: With dead ends: 148677 [2024-11-22 01:57:24,281 INFO L226 Difference]: Without dead ends: 99707 [2024-11-22 01:57:24,403 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:57:24,404 INFO L432 NwaCegarLoop]: 477 mSDtfsCounter, 81 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 943 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:57:24,404 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 943 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:57:24,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99707 states. [2024-11-22 01:57:27,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99707 to 99697. [2024-11-22 01:57:28,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99697 states, 82621 states have (on average 1.5917381779450746) internal successors, (131511), 82632 states have internal predecessors, (131511), 17031 states have call successors, (17031), 38 states have call predecessors, (17031), 44 states have return successors, (19892), 17029 states have call predecessors, (19892), 17030 states have call successors, (19892) [2024-11-22 01:57:28,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99697 states to 99697 states and 168434 transitions. [2024-11-22 01:57:28,819 INFO L78 Accepts]: Start accepts. Automaton has 99697 states and 168434 transitions. Word has length 133 [2024-11-22 01:57:28,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:57:28,826 INFO L471 AbstractCegarLoop]: Abstraction has 99697 states and 168434 transitions. [2024-11-22 01:57:28,827 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-22 01:57:28,827 INFO L276 IsEmpty]: Start isEmpty. Operand 99697 states and 168434 transitions. [2024-11-22 01:57:28,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-22 01:57:28,983 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:57:28,983 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] [2024-11-22 01:57:28,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-22 01:57:28,983 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:57:28,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:57:28,984 INFO L85 PathProgramCache]: Analyzing trace with hash -231874893, now seen corresponding path program 1 times [2024-11-22 01:57:28,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:57:28,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846915197] [2024-11-22 01:57:28,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:57:28,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:57:29,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:57:29,052 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-22 01:57:29,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:57:29,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846915197] [2024-11-22 01:57:29,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846915197] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:57:29,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:57:29,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:57:29,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137705037] [2024-11-22 01:57:29,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:57:29,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:57:29,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:57:29,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:57:29,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:57:29,055 INFO L87 Difference]: Start difference. First operand 99697 states and 168434 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-22 01:57:32,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:57:32,847 INFO L93 Difference]: Finished difference Result 185643 states and 314361 transitions. [2024-11-22 01:57:32,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:57:32,847 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 134 [2024-11-22 01:57:32,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:57:33,903 INFO L225 Difference]: With dead ends: 185643 [2024-11-22 01:57:33,903 INFO L226 Difference]: Without dead ends: 185395 [2024-11-22 01:57:33,980 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:57:33,980 INFO L432 NwaCegarLoop]: 474 mSDtfsCounter, 76 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 944 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:57:33,981 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 944 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:57:34,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185395 states. [2024-11-22 01:57:40,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185395 to 185385. [2024-11-22 01:57:40,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185385 states, 154711 states have (on average 1.5841342890938588) internal successors, (245083), 154722 states have internal predecessors, (245083), 30629 states have call successors, (30629), 38 states have call predecessors, (30629), 44 states have return successors, (36105), 30627 states have call predecessors, (36105), 30628 states have call successors, (36105) [2024-11-22 01:57:40,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185385 states to 185385 states and 311817 transitions. [2024-11-22 01:57:40,795 INFO L78 Accepts]: Start accepts. Automaton has 185385 states and 311817 transitions. Word has length 134 [2024-11-22 01:57:40,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:57:40,796 INFO L471 AbstractCegarLoop]: Abstraction has 185385 states and 311817 transitions. [2024-11-22 01:57:40,796 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-22 01:57:40,796 INFO L276 IsEmpty]: Start isEmpty. Operand 185385 states and 311817 transitions. [2024-11-22 01:57:40,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-22 01:57:40,880 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:57:40,880 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] [2024-11-22 01:57:40,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-22 01:57:40,881 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:57:40,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:57:40,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1592268082, now seen corresponding path program 1 times [2024-11-22 01:57:40,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:57:40,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405453176] [2024-11-22 01:57:40,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:57:40,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:57:40,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:57:41,121 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-22 01:57:41,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:57:41,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405453176] [2024-11-22 01:57:41,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405453176] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:57:41,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:57:41,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-22 01:57:41,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645637962] [2024-11-22 01:57:41,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:57:41,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-22 01:57:41,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:57:41,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-22 01:57:41,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2024-11-22 01:57:41,123 INFO L87 Difference]: Start difference. First operand 185385 states and 311817 transitions. Second operand has 13 states, 12 states have (on average 7.666666666666667) internal successors, (92), 11 states have internal predecessors, (92), 6 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-22 01:57:50,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:57:50,447 INFO L93 Difference]: Finished difference Result 369503 states and 632485 transitions. [2024-11-22 01:57:50,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-22 01:57:50,449 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 7.666666666666667) internal successors, (92), 11 states have internal predecessors, (92), 6 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) Word has length 135 [2024-11-22 01:57:50,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:57:52,159 INFO L225 Difference]: With dead ends: 369503 [2024-11-22 01:57:52,159 INFO L226 Difference]: Without dead ends: 369306 [2024-11-22 01:57:52,343 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=125, Invalid=577, Unknown=0, NotChecked=0, Total=702 [2024-11-22 01:57:52,344 INFO L432 NwaCegarLoop]: 546 mSDtfsCounter, 1394 mSDsluCounter, 5242 mSDsCounter, 0 mSdLazyCounter, 1128 mSolverCounterSat, 426 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1394 SdHoareTripleChecker+Valid, 5788 SdHoareTripleChecker+Invalid, 1554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 426 IncrementalHoareTripleChecker+Valid, 1128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-22 01:57:52,344 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1394 Valid, 5788 Invalid, 1554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [426 Valid, 1128 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-22 01:57:52,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369306 states.