./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec3_product35.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec3_product35.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 a235b81518d1466c5f4be9b22c3eaea6ff575e28236a3798a0ed19e321bfc6e0 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 02:58:34,841 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 02:58:34,922 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 02:58:34,930 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 02:58:34,931 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 02:58:34,961 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 02:58:34,963 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 02:58:34,964 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 02:58:34,965 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 02:58:34,967 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 02:58:34,967 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 02:58:34,967 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 02:58:34,968 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 02:58:34,968 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 02:58:34,970 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 02:58:34,971 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 02:58:34,971 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 02:58:34,971 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 02:58:34,972 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 02:58:34,972 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 02:58:34,972 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 02:58:34,976 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 02:58:34,976 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 02:58:34,976 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 02:58:34,977 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 02:58:34,977 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 02:58:34,977 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 02:58:34,978 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 02:58:34,978 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 02:58:34,979 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 02:58:34,979 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 02:58:34,980 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 02:58:34,980 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 02:58:34,980 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 02:58:34,981 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 02:58:34,988 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 02:58:34,989 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 02:58:34,989 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 02:58:34,989 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 02:58:34,989 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 02:58:34,989 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 02:58:34,990 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 02:58:34,990 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a235b81518d1466c5f4be9b22c3eaea6ff575e28236a3798a0ed19e321bfc6e0 [2024-10-14 02:58:35,248 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 02:58:35,270 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 02:58:35,273 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 02:58:35,274 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 02:58:35,275 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 02:58:35,276 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec3_product35.cil.c [2024-10-14 02:58:36,753 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 02:58:37,091 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 02:58:37,093 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec3_product35.cil.c [2024-10-14 02:58:37,115 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/031dbf694/2aa0c1b8605d4959ad6fe3733168414f/FLAGd7aca0e28 [2024-10-14 02:58:37,128 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/031dbf694/2aa0c1b8605d4959ad6fe3733168414f [2024-10-14 02:58:37,130 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 02:58:37,132 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 02:58:37,134 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 02:58:37,134 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 02:58:37,141 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 02:58:37,142 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 02:58:37" (1/1) ... [2024-10-14 02:58:37,143 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b10b0b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:58:37, skipping insertion in model container [2024-10-14 02:58:37,143 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 02:58:37" (1/1) ... [2024-10-14 02:58:37,209 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 02:58:37,750 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec3_product35.cil.c[61781,61794] [2024-10-14 02:58:37,770 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 02:58:37,787 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 02:58:37,799 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] [2024-10-14 02:58:37,800 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [392] [2024-10-14 02:58:37,801 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignVerify_spec.i","") [854] [2024-10-14 02:58:37,801 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [913] [2024-10-14 02:58:37,802 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1973] [2024-10-14 02:58:37,802 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2372] [2024-10-14 02:58:37,802 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2507] [2024-10-14 02:58:37,802 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2873] [2024-10-14 02:58:37,803 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2908] [2024-10-14 02:58:37,803 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2925] [2024-10-14 02:58:37,803 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2934] [2024-10-14 02:58:37,904 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec3_product35.cil.c[61781,61794] [2024-10-14 02:58:37,909 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 02:58:37,964 INFO L204 MainTranslator]: Completed translation [2024-10-14 02:58:37,964 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:58:37 WrapperNode [2024-10-14 02:58:37,965 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 02:58:37,966 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 02:58:37,966 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 02:58:37,966 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 02:58:37,973 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:58:37" (1/1) ... [2024-10-14 02:58:38,024 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:58:37" (1/1) ... [2024-10-14 02:58:38,079 INFO L138 Inliner]: procedures = 138, calls = 234, calls flagged for inlining = 66, calls inlined = 63, statements flattened = 1185 [2024-10-14 02:58:38,080 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 02:58:38,081 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 02:58:38,081 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 02:58:38,081 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 02:58:38,092 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:58:37" (1/1) ... [2024-10-14 02:58:38,093 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:58:37" (1/1) ... [2024-10-14 02:58:38,099 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:58:37" (1/1) ... [2024-10-14 02:58:38,142 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4]. 29 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0]. [2024-10-14 02:58:38,143 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:58:37" (1/1) ... [2024-10-14 02:58:38,143 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:58:37" (1/1) ... [2024-10-14 02:58:38,165 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:58:37" (1/1) ... [2024-10-14 02:58:38,176 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:58:37" (1/1) ... [2024-10-14 02:58:38,182 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:58:37" (1/1) ... [2024-10-14 02:58:38,188 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:58:37" (1/1) ... [2024-10-14 02:58:38,197 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 02:58:38,198 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 02:58:38,199 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 02:58:38,199 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 02:58:38,200 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:58:37" (1/1) ... [2024-10-14 02:58:38,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 02:58:38,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 02:58:38,256 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 02:58:38,266 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 02:58:38,317 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-10-14 02:58:38,317 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-10-14 02:58:38,318 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2024-10-14 02:58:38,318 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2024-10-14 02:58:38,318 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-10-14 02:58:38,318 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-10-14 02:58:38,318 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2024-10-14 02:58:38,319 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2024-10-14 02:58:38,319 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-10-14 02:58:38,319 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-10-14 02:58:38,319 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-10-14 02:58:38,320 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-10-14 02:58:38,320 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2024-10-14 02:58:38,320 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2024-10-14 02:58:38,320 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-10-14 02:58:38,321 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-10-14 02:58:38,321 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-10-14 02:58:38,321 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-10-14 02:58:38,321 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-10-14 02:58:38,322 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-10-14 02:58:38,322 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-10-14 02:58:38,322 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-10-14 02:58:38,323 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-10-14 02:58:38,323 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-10-14 02:58:38,323 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-10-14 02:58:38,325 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-10-14 02:58:38,325 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-10-14 02:58:38,325 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-10-14 02:58:38,325 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2024-10-14 02:58:38,325 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2024-10-14 02:58:38,325 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-10-14 02:58:38,325 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-10-14 02:58:38,326 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 02:58:38,326 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-10-14 02:58:38,326 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-10-14 02:58:38,326 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-10-14 02:58:38,326 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-10-14 02:58:38,326 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2024-10-14 02:58:38,326 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2024-10-14 02:58:38,326 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-10-14 02:58:38,327 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-10-14 02:58:38,327 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-10-14 02:58:38,327 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-10-14 02:58:38,327 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-10-14 02:58:38,327 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-10-14 02:58:38,327 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-10-14 02:58:38,327 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-10-14 02:58:38,327 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-10-14 02:58:38,328 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-10-14 02:58:38,328 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-10-14 02:58:38,328 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-10-14 02:58:38,328 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-10-14 02:58:38,328 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-10-14 02:58:38,328 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-10-14 02:58:38,328 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-10-14 02:58:38,328 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-10-14 02:58:38,328 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-10-14 02:58:38,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 02:58:38,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-14 02:58:38,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-14 02:58:38,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-14 02:58:38,329 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-10-14 02:58:38,329 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-10-14 02:58:38,329 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2024-10-14 02:58:38,329 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2024-10-14 02:58:38,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 02:58:38,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 02:58:38,607 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 02:58:38,609 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 02:58:39,801 INFO L? ?]: Removed 614 outVars from TransFormulas that were not future-live. [2024-10-14 02:58:39,801 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 02:58:39,883 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 02:58:39,885 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 02:58:39,885 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 02:58:39 BoogieIcfgContainer [2024-10-14 02:58:39,885 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 02:58:39,888 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 02:58:39,888 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 02:58:39,891 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 02:58:39,892 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 02:58:37" (1/3) ... [2024-10-14 02:58:39,892 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d79367 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 02:58:39, skipping insertion in model container [2024-10-14 02:58:39,893 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:58:37" (2/3) ... [2024-10-14 02:58:39,893 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d79367 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 02:58:39, skipping insertion in model container [2024-10-14 02:58:39,893 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 02:58:39" (3/3) ... [2024-10-14 02:58:39,895 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec3_product35.cil.c [2024-10-14 02:58:39,918 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 02:58:39,919 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 02:58:40,014 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 02:58:40,024 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;@151fb9a2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 02:58:40,024 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 02:58:40,034 INFO L276 IsEmpty]: Start isEmpty. Operand has 444 states, 332 states have (on average 1.5843373493975903) internal successors, (526), 339 states have internal predecessors, (526), 80 states have call successors, (80), 30 states have call predecessors, (80), 30 states have return successors, (80), 78 states have call predecessors, (80), 80 states have call successors, (80) [2024-10-14 02:58:40,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-10-14 02:58:40,064 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:58:40,065 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:58:40,065 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:58:40,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:58:40,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1372110673, now seen corresponding path program 1 times [2024-10-14 02:58:40,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:58:40,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296446942] [2024-10-14 02:58:40,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:58:40,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:58:40,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:40,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:58:40,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:40,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:58:40,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:40,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:58:40,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:40,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 02:58:40,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:40,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 02:58:40,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:40,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 02:58:40,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:40,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-14 02:58:40,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:40,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-14 02:58:40,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:40,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-14 02:58:40,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:40,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-14 02:58:40,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:40,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-14 02:58:40,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:40,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-14 02:58:40,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:40,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 02:58:40,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:40,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 02:58:40,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:40,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-14 02:58:41,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:41,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 02:58:41,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:41,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 02:58:41,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:41,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-14 02:58:41,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:41,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-14 02:58:41,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:41,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-14 02:58:41,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:41,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-14 02:58:41,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:41,045 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-10-14 02:58:41,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:58:41,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296446942] [2024-10-14 02:58:41,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296446942] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 02:58:41,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [564127026] [2024-10-14 02:58:41,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:58:41,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 02:58:41,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 02:58:41,050 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 02:58:41,051 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 02:58:41,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:41,481 INFO L255 TraceCheckSpWp]: Trace formula consists of 1289 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-14 02:58:41,490 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 02:58:41,512 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-10-14 02:58:41,513 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 02:58:41,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [564127026] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:58:41,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 02:58:41,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2024-10-14 02:58:41,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130222875] [2024-10-14 02:58:41,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:58:41,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 02:58:41,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:58:41,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 02:58:41,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-14 02:58:41,556 INFO L87 Difference]: Start difference. First operand has 444 states, 332 states have (on average 1.5843373493975903) internal successors, (526), 339 states have internal predecessors, (526), 80 states have call successors, (80), 30 states have call predecessors, (80), 30 states have return successors, (80), 78 states have call predecessors, (80), 80 states have call successors, (80) Second operand has 2 states, 2 states have (on average 36.5) internal successors, (73), 2 states have internal predecessors, (73), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-10-14 02:58:41,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:58:41,683 INFO L93 Difference]: Finished difference Result 699 states and 1064 transitions. [2024-10-14 02:58:41,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 02:58:41,692 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 36.5) internal successors, (73), 2 states have internal predecessors, (73), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 150 [2024-10-14 02:58:41,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:58:41,715 INFO L225 Difference]: With dead ends: 699 [2024-10-14 02:58:41,716 INFO L226 Difference]: Without dead ends: 440 [2024-10-14 02:58:41,725 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-14 02:58:41,731 INFO L432 NwaCegarLoop]: 659 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 02:58:41,732 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 659 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 02:58:41,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2024-10-14 02:58:41,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 440. [2024-10-14 02:58:41,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 330 states have (on average 1.5727272727272728) internal successors, (519), 335 states have internal predecessors, (519), 80 states have call successors, (80), 30 states have call predecessors, (80), 29 states have return successors, (77), 76 states have call predecessors, (77), 77 states have call successors, (77) [2024-10-14 02:58:41,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 676 transitions. [2024-10-14 02:58:41,823 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 676 transitions. Word has length 150 [2024-10-14 02:58:41,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:58:41,825 INFO L471 AbstractCegarLoop]: Abstraction has 440 states and 676 transitions. [2024-10-14 02:58:41,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 36.5) internal successors, (73), 2 states have internal predecessors, (73), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-10-14 02:58:41,825 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 676 transitions. [2024-10-14 02:58:41,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-10-14 02:58:41,834 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:58:41,834 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:58:41,852 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-14 02:58:42,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-10-14 02:58:42,039 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:58:42,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:58:42,040 INFO L85 PathProgramCache]: Analyzing trace with hash -621594579, now seen corresponding path program 1 times [2024-10-14 02:58:42,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:58:42,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341382319] [2024-10-14 02:58:42,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:58:42,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:58:42,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:42,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:58:42,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:42,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:58:42,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:42,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:58:42,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:42,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 02:58:42,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:42,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 02:58:42,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:42,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 02:58:42,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:42,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-14 02:58:42,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:42,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-14 02:58:42,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:42,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 02:58:42,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:42,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-14 02:58:42,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:42,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 02:58:42,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:42,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 02:58:42,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:42,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 02:58:42,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:42,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-14 02:58:42,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:42,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 02:58:42,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:42,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 02:58:42,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:42,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 02:58:42,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:42,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-14 02:58:42,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:42,375 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-10-14 02:58:42,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:58:42,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341382319] [2024-10-14 02:58:42,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341382319] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 02:58:42,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1517117257] [2024-10-14 02:58:42,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:58:42,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 02:58:42,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 02:58:42,378 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 02:58:42,380 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 02:58:42,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:42,727 INFO L255 TraceCheckSpWp]: Trace formula consists of 1221 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-14 02:58:42,737 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 02:58:42,768 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-10-14 02:58:42,768 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 02:58:42,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1517117257] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:58:42,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 02:58:42,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-10-14 02:58:42,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831020282] [2024-10-14 02:58:42,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:58:42,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 02:58:42,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:58:42,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 02:58:42,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-14 02:58:42,772 INFO L87 Difference]: Start difference. First operand 440 states and 676 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-14 02:58:42,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:58:42,857 INFO L93 Difference]: Finished difference Result 694 states and 1044 transitions. [2024-10-14 02:58:42,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 02:58:42,857 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 133 [2024-10-14 02:58:42,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:58:42,863 INFO L225 Difference]: With dead ends: 694 [2024-10-14 02:58:42,864 INFO L226 Difference]: Without dead ends: 442 [2024-10-14 02:58:42,867 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-14 02:58:42,868 INFO L432 NwaCegarLoop]: 656 mSDtfsCounter, 0 mSDsluCounter, 655 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1311 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 02:58:42,869 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1311 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 02:58:42,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2024-10-14 02:58:42,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 442. [2024-10-14 02:58:42,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 332 states have (on average 1.569277108433735) internal successors, (521), 337 states have internal predecessors, (521), 80 states have call successors, (80), 30 states have call predecessors, (80), 29 states have return successors, (77), 76 states have call predecessors, (77), 77 states have call successors, (77) [2024-10-14 02:58:42,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 678 transitions. [2024-10-14 02:58:42,921 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 678 transitions. Word has length 133 [2024-10-14 02:58:42,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:58:42,921 INFO L471 AbstractCegarLoop]: Abstraction has 442 states and 678 transitions. [2024-10-14 02:58:42,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-14 02:58:42,922 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 678 transitions. [2024-10-14 02:58:42,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-10-14 02:58:42,926 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:58:42,926 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:58:42,946 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-14 02:58:43,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-10-14 02:58:43,131 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:58:43,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:58:43,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1989877802, now seen corresponding path program 1 times [2024-10-14 02:58:43,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:58:43,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574478530] [2024-10-14 02:58:43,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:58:43,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:58:43,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:43,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:58:43,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:43,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:58:43,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:43,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:58:43,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:43,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 02:58:43,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:43,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 02:58:43,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:43,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 02:58:43,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:43,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 02:58:43,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:43,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-14 02:58:43,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:43,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-14 02:58:43,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:43,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 02:58:43,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:43,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 02:58:43,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:43,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 02:58:43,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:43,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-14 02:58:43,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:43,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-14 02:58:43,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:43,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-14 02:58:43,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:43,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-14 02:58:43,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:43,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-14 02:58:43,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:43,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-14 02:58:43,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:43,506 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-10-14 02:58:43,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:58:43,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574478530] [2024-10-14 02:58:43,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574478530] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 02:58:43,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2084437892] [2024-10-14 02:58:43,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:58:43,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 02:58:43,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 02:58:43,509 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 02:58:43,511 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-14 02:58:43,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:43,851 INFO L255 TraceCheckSpWp]: Trace formula consists of 1245 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 02:58:43,855 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 02:58:43,885 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-10-14 02:58:43,886 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 02:58:43,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2084437892] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:58:43,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 02:58:43,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-10-14 02:58:43,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886410087] [2024-10-14 02:58:43,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:58:43,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 02:58:43,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:58:43,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 02:58:43,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-14 02:58:43,889 INFO L87 Difference]: Start difference. First operand 442 states and 678 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-14 02:58:43,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:58:43,965 INFO L93 Difference]: Finished difference Result 936 states and 1455 transitions. [2024-10-14 02:58:43,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 02:58:43,966 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 140 [2024-10-14 02:58:43,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:58:43,973 INFO L225 Difference]: With dead ends: 936 [2024-10-14 02:58:43,973 INFO L226 Difference]: Without dead ends: 516 [2024-10-14 02:58:43,975 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-14 02:58:43,977 INFO L432 NwaCegarLoop]: 670 mSDtfsCounter, 136 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 1283 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 02:58:43,978 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 1283 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 02:58:43,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2024-10-14 02:58:43,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 511. [2024-10-14 02:58:44,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 511 states, 387 states have (on average 1.5891472868217054) internal successors, (615), 392 states have internal predecessors, (615), 94 states have call successors, (94), 30 states have call predecessors, (94), 29 states have return successors, (91), 90 states have call predecessors, (91), 91 states have call successors, (91) [2024-10-14 02:58:44,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 800 transitions. [2024-10-14 02:58:44,007 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 800 transitions. Word has length 140 [2024-10-14 02:58:44,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:58:44,008 INFO L471 AbstractCegarLoop]: Abstraction has 511 states and 800 transitions. [2024-10-14 02:58:44,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-14 02:58:44,009 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 800 transitions. [2024-10-14 02:58:44,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-10-14 02:58:44,015 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:58:44,015 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:58:44,036 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-14 02:58:44,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 02:58:44,216 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:58:44,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:58:44,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1551737252, now seen corresponding path program 1 times [2024-10-14 02:58:44,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:58:44,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297193319] [2024-10-14 02:58:44,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:58:44,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:58:44,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:44,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:58:44,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:44,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:58:44,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:44,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:58:44,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:44,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 02:58:44,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:44,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 02:58:44,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:44,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 02:58:44,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:44,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 02:58:44,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:44,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 02:58:44,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:44,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-14 02:58:44,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:44,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 02:58:44,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:44,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 02:58:44,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:44,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-14 02:58:44,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:44,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 02:58:44,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:44,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-14 02:58:44,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:44,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-14 02:58:44,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:44,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 02:58:44,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:44,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-14 02:58:44,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:44,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 02:58:44,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:44,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-14 02:58:44,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:44,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-10-14 02:58:44,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:44,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-10-14 02:58:44,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:44,581 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-10-14 02:58:44,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:58:44,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297193319] [2024-10-14 02:58:44,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297193319] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 02:58:44,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [632337690] [2024-10-14 02:58:44,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:58:44,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 02:58:44,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 02:58:44,585 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 02:58:44,587 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-14 02:58:44,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:44,960 INFO L255 TraceCheckSpWp]: Trace formula consists of 1319 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-14 02:58:44,965 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 02:58:45,041 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-10-14 02:58:45,043 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 02:58:45,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [632337690] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:58:45,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 02:58:45,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-10-14 02:58:45,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760649841] [2024-10-14 02:58:45,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:58:45,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 02:58:45,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:58:45,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 02:58:45,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-14 02:58:45,047 INFO L87 Difference]: Start difference. First operand 511 states and 800 transitions. Second operand has 5 states, 4 states have (on average 22.5) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) [2024-10-14 02:58:45,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:58:45,172 INFO L93 Difference]: Finished difference Result 1017 states and 1594 transitions. [2024-10-14 02:58:45,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 02:58:45,173 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 22.5) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) Word has length 159 [2024-10-14 02:58:45,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:58:45,179 INFO L225 Difference]: With dead ends: 1017 [2024-10-14 02:58:45,179 INFO L226 Difference]: Without dead ends: 513 [2024-10-14 02:58:45,181 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-14 02:58:45,181 INFO L432 NwaCegarLoop]: 648 mSDtfsCounter, 2 mSDsluCounter, 1933 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2581 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 02:58:45,182 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2581 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 02:58:45,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2024-10-14 02:58:45,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 513. [2024-10-14 02:58:45,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 388 states have (on average 1.5876288659793814) internal successors, (616), 394 states have internal predecessors, (616), 94 states have call successors, (94), 30 states have call predecessors, (94), 30 states have return successors, (93), 90 states have call predecessors, (93), 91 states have call successors, (93) [2024-10-14 02:58:45,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 803 transitions. [2024-10-14 02:58:45,211 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 803 transitions. Word has length 159 [2024-10-14 02:58:45,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:58:45,211 INFO L471 AbstractCegarLoop]: Abstraction has 513 states and 803 transitions. [2024-10-14 02:58:45,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 22.5) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) [2024-10-14 02:58:45,212 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 803 transitions. [2024-10-14 02:58:45,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-10-14 02:58:45,215 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:58:45,216 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:58:45,236 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-14 02:58:45,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 02:58:45,417 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:58:45,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:58:45,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1713017937, now seen corresponding path program 1 times [2024-10-14 02:58:45,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:58:45,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343750048] [2024-10-14 02:58:45,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:58:45,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:58:45,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:45,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:58:45,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:45,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:58:45,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:45,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:58:45,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:45,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:58:45,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:45,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-14 02:58:45,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:45,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-14 02:58:45,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:45,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-14 02:58:45,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:45,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 02:58:45,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:45,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 02:58:45,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:45,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 02:58:45,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:45,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-14 02:58:45,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:45,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-14 02:58:45,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:45,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-14 02:58:45,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:45,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-14 02:58:45,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:45,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-14 02:58:45,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:45,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 02:58:45,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:45,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-14 02:58:45,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:45,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-10-14 02:58:45,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:45,745 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-10-14 02:58:45,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:58:45,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343750048] [2024-10-14 02:58:45,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343750048] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 02:58:45,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [51213573] [2024-10-14 02:58:45,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:58:45,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 02:58:45,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 02:58:45,748 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 02:58:45,749 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-14 02:58:46,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:46,092 INFO L255 TraceCheckSpWp]: Trace formula consists of 1251 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-14 02:58:46,096 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 02:58:46,146 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-14 02:58:46,146 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 02:58:46,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [51213573] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:58:46,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 02:58:46,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-10-14 02:58:46,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381741050] [2024-10-14 02:58:46,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:58:46,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 02:58:46,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:58:46,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 02:58:46,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-10-14 02:58:46,149 INFO L87 Difference]: Start difference. First operand 513 states and 803 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-10-14 02:58:46,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:58:46,261 INFO L93 Difference]: Finished difference Result 1019 states and 1599 transitions. [2024-10-14 02:58:46,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 02:58:46,262 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 142 [2024-10-14 02:58:46,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:58:46,266 INFO L225 Difference]: With dead ends: 1019 [2024-10-14 02:58:46,266 INFO L226 Difference]: Without dead ends: 515 [2024-10-14 02:58:46,268 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-10-14 02:58:46,268 INFO L432 NwaCegarLoop]: 646 mSDtfsCounter, 2 mSDsluCounter, 1921 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2567 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 02:58:46,269 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2567 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 02:58:46,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2024-10-14 02:58:46,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 515. [2024-10-14 02:58:46,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 389 states have (on average 1.5861182519280206) internal successors, (617), 396 states have internal predecessors, (617), 94 states have call successors, (94), 30 states have call predecessors, (94), 31 states have return successors, (98), 90 states have call predecessors, (98), 91 states have call successors, (98) [2024-10-14 02:58:46,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 809 transitions. [2024-10-14 02:58:46,290 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 809 transitions. Word has length 142 [2024-10-14 02:58:46,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:58:46,291 INFO L471 AbstractCegarLoop]: Abstraction has 515 states and 809 transitions. [2024-10-14 02:58:46,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-10-14 02:58:46,291 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 809 transitions. [2024-10-14 02:58:46,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-10-14 02:58:46,294 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:58:46,294 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:58:46,313 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-14 02:58:46,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 02:58:46,495 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:58:46,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:58:46,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1375053792, now seen corresponding path program 1 times [2024-10-14 02:58:46,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:58:46,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920273918] [2024-10-14 02:58:46,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:58:46,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:58:46,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:46,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:58:46,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:46,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:58:46,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:46,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:58:46,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:46,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:58:46,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:46,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:58:46,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:46,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-14 02:58:46,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:46,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 02:58:46,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:46,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 02:58:46,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:46,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-14 02:58:46,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:46,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 02:58:46,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:46,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 02:58:46,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:46,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 02:58:46,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:46,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-14 02:58:46,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:46,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 02:58:46,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:46,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-14 02:58:46,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:46,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-14 02:58:46,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:46,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-14 02:58:46,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:46,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-14 02:58:46,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:46,713 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-10-14 02:58:46,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:58:46,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920273918] [2024-10-14 02:58:46,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920273918] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:58:46,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:58:46,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 02:58:46,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664560979] [2024-10-14 02:58:46,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:58:46,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 02:58:46,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:58:46,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 02:58:46,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-14 02:58:46,716 INFO L87 Difference]: Start difference. First operand 515 states and 809 transitions. Second operand has 9 states, 8 states have (on average 10.25) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (22), 6 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-10-14 02:58:49,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:58:49,799 INFO L93 Difference]: Finished difference Result 1216 states and 1949 transitions. [2024-10-14 02:58:49,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 02:58:49,800 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.25) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (22), 6 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 143 [2024-10-14 02:58:49,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:58:49,806 INFO L225 Difference]: With dead ends: 1216 [2024-10-14 02:58:49,807 INFO L226 Difference]: Without dead ends: 720 [2024-10-14 02:58:49,809 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-14 02:58:49,811 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 1523 mSDsluCounter, 1047 mSDsCounter, 0 mSdLazyCounter, 3579 mSolverCounterSat, 605 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1524 SdHoareTripleChecker+Valid, 1246 SdHoareTripleChecker+Invalid, 4184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 605 IncrementalHoareTripleChecker+Valid, 3579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-10-14 02:58:49,811 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1524 Valid, 1246 Invalid, 4184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [605 Valid, 3579 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-10-14 02:58:49,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states. [2024-10-14 02:58:49,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 515. [2024-10-14 02:58:49,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 389 states have (on average 1.5861182519280206) internal successors, (617), 396 states have internal predecessors, (617), 94 states have call successors, (94), 30 states have call predecessors, (94), 31 states have return successors, (97), 90 states have call predecessors, (97), 91 states have call successors, (97) [2024-10-14 02:58:49,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 808 transitions. [2024-10-14 02:58:49,869 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 808 transitions. Word has length 143 [2024-10-14 02:58:49,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:58:49,869 INFO L471 AbstractCegarLoop]: Abstraction has 515 states and 808 transitions. [2024-10-14 02:58:49,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.25) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (22), 6 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-10-14 02:58:49,870 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 808 transitions. [2024-10-14 02:58:49,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-10-14 02:58:49,874 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:58:49,874 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:58:49,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 02:58:49,874 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:58:49,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:58:49,875 INFO L85 PathProgramCache]: Analyzing trace with hash -123669765, now seen corresponding path program 2 times [2024-10-14 02:58:49,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:58:49,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703124556] [2024-10-14 02:58:49,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:58:49,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:58:49,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:50,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:58:50,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:50,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:58:50,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:50,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:58:50,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:50,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:58:50,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:50,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:58:50,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:50,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 02:58:50,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:50,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-14 02:58:50,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:50,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 02:58:50,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:50,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-14 02:58:50,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:50,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-14 02:58:50,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:50,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 02:58:50,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:50,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 02:58:50,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:50,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 02:58:50,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:50,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 02:58:50,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:50,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 02:58:50,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:50,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-14 02:58:50,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:50,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 02:58:50,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:50,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-14 02:58:50,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:50,118 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-10-14 02:58:50,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:58:50,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703124556] [2024-10-14 02:58:50,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703124556] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:58:50,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:58:50,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 02:58:50,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632963182] [2024-10-14 02:58:50,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:58:50,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 02:58:50,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:58:50,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 02:58:50,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-14 02:58:50,121 INFO L87 Difference]: Start difference. First operand 515 states and 808 transitions. Second operand has 9 states, 8 states have (on average 10.375) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (22), 6 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-10-14 02:58:53,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:58:53,110 INFO L93 Difference]: Finished difference Result 1218 states and 1952 transitions. [2024-10-14 02:58:53,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 02:58:53,110 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.375) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (22), 6 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 144 [2024-10-14 02:58:53,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:58:53,117 INFO L225 Difference]: With dead ends: 1218 [2024-10-14 02:58:53,117 INFO L226 Difference]: Without dead ends: 722 [2024-10-14 02:58:53,120 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-14 02:58:53,121 INFO L432 NwaCegarLoop]: 198 mSDtfsCounter, 1517 mSDsluCounter, 1047 mSDsCounter, 0 mSdLazyCounter, 3593 mSolverCounterSat, 594 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1518 SdHoareTripleChecker+Valid, 1245 SdHoareTripleChecker+Invalid, 4187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 594 IncrementalHoareTripleChecker+Valid, 3593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-10-14 02:58:53,121 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1518 Valid, 1245 Invalid, 4187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [594 Valid, 3593 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-10-14 02:58:53,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722 states. [2024-10-14 02:58:53,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722 to 517. [2024-10-14 02:58:53,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 390 states have (on average 1.5846153846153845) internal successors, (618), 398 states have internal predecessors, (618), 94 states have call successors, (94), 30 states have call predecessors, (94), 32 states have return successors, (99), 90 states have call predecessors, (99), 91 states have call successors, (99) [2024-10-14 02:58:53,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 811 transitions. [2024-10-14 02:58:53,211 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 811 transitions. Word has length 144 [2024-10-14 02:58:53,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:58:53,211 INFO L471 AbstractCegarLoop]: Abstraction has 517 states and 811 transitions. [2024-10-14 02:58:53,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.375) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (22), 6 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-10-14 02:58:53,212 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 811 transitions. [2024-10-14 02:58:53,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-10-14 02:58:53,214 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:58:53,214 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:58:53,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 02:58:53,215 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:58:53,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:58:53,215 INFO L85 PathProgramCache]: Analyzing trace with hash -2054889353, now seen corresponding path program 1 times [2024-10-14 02:58:53,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:58:53,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007625102] [2024-10-14 02:58:53,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:58:53,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:58:53,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:53,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:58:53,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:53,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:58:53,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:53,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:58:53,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:53,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:58:53,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:53,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:58:53,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:53,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:58:53,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:53,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-14 02:58:53,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:53,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-14 02:58:53,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:53,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 02:58:53,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:53,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-14 02:58:53,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:53,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 02:58:53,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:53,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 02:58:53,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:53,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-14 02:58:53,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:53,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-14 02:58:53,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:53,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-14 02:58:53,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:53,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-14 02:58:53,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:53,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-14 02:58:53,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:53,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-10-14 02:58:53,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:53,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-14 02:58:53,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:53,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-14 02:58:53,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:53,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-14 02:58:53,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:53,477 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-10-14 02:58:53,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:58:53,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007625102] [2024-10-14 02:58:53,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007625102] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:58:53,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:58:53,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 02:58:53,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803854161] [2024-10-14 02:58:53,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:58:53,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 02:58:53,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:58:53,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 02:58:53,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-10-14 02:58:53,479 INFO L87 Difference]: Start difference. First operand 517 states and 811 transitions. Second operand has 12 states, 11 states have (on average 8.454545454545455) internal successors, (93), 8 states have internal predecessors, (93), 4 states have call successors, (25), 6 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2024-10-14 02:58:57,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:58:57,028 INFO L93 Difference]: Finished difference Result 1216 states and 1947 transitions. [2024-10-14 02:58:57,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 02:58:57,028 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.454545454545455) internal successors, (93), 8 states have internal predecessors, (93), 4 states have call successors, (25), 6 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) Word has length 163 [2024-10-14 02:58:57,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:58:57,033 INFO L225 Difference]: With dead ends: 1216 [2024-10-14 02:58:57,033 INFO L226 Difference]: Without dead ends: 722 [2024-10-14 02:58:57,036 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-10-14 02:58:57,036 INFO L432 NwaCegarLoop]: 198 mSDtfsCounter, 1521 mSDsluCounter, 1532 mSDsCounter, 0 mSdLazyCounter, 5992 mSolverCounterSat, 600 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1522 SdHoareTripleChecker+Valid, 1730 SdHoareTripleChecker+Invalid, 6592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 600 IncrementalHoareTripleChecker+Valid, 5992 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-10-14 02:58:57,037 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1522 Valid, 1730 Invalid, 6592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [600 Valid, 5992 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-10-14 02:58:57,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722 states. [2024-10-14 02:58:57,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722 to 517. [2024-10-14 02:58:57,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 390 states have (on average 1.5846153846153845) internal successors, (618), 398 states have internal predecessors, (618), 94 states have call successors, (94), 30 states have call predecessors, (94), 32 states have return successors, (98), 90 states have call predecessors, (98), 91 states have call successors, (98) [2024-10-14 02:58:57,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 810 transitions. [2024-10-14 02:58:57,076 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 810 transitions. Word has length 163 [2024-10-14 02:58:57,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:58:57,076 INFO L471 AbstractCegarLoop]: Abstraction has 517 states and 810 transitions. [2024-10-14 02:58:57,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.454545454545455) internal successors, (93), 8 states have internal predecessors, (93), 4 states have call successors, (25), 6 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2024-10-14 02:58:57,077 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 810 transitions. [2024-10-14 02:58:57,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-10-14 02:58:57,079 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:58:57,079 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:58:57,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 02:58:57,080 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:58:57,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:58:57,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1548241280, now seen corresponding path program 1 times [2024-10-14 02:58:57,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:58:57,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861987586] [2024-10-14 02:58:57,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:58:57,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:58:57,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:57,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:58:57,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:57,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:58:57,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:57,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:58:57,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:57,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:58:57,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:57,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:58:57,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:57,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:58:57,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:57,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 02:58:57,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:57,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-14 02:58:57,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:57,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-14 02:58:57,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:57,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 02:58:57,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:57,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 02:58:57,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:57,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 02:58:57,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:57,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-14 02:58:57,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:57,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-14 02:58:57,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:57,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-14 02:58:57,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:57,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-14 02:58:57,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:57,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-14 02:58:57,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:57,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-14 02:58:57,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:57,336 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-10-14 02:58:57,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:58:57,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861987586] [2024-10-14 02:58:57,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861987586] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:58:57,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:58:57,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 02:58:57,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248260534] [2024-10-14 02:58:57,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:58:57,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 02:58:57,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:58:57,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 02:58:57,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-10-14 02:58:57,339 INFO L87 Difference]: Start difference. First operand 517 states and 810 transitions. Second operand has 12 states, 11 states have (on average 8.0) internal successors, (88), 8 states have internal predecessors, (88), 4 states have call successors, (22), 6 states have call predecessors, (22), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-14 02:59:00,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:59:00,406 INFO L93 Difference]: Finished difference Result 1218 states and 1953 transitions. [2024-10-14 02:59:00,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 02:59:00,406 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.0) internal successors, (88), 8 states have internal predecessors, (88), 4 states have call successors, (22), 6 states have call predecessors, (22), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 146 [2024-10-14 02:59:00,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:59:00,411 INFO L225 Difference]: With dead ends: 1218 [2024-10-14 02:59:00,412 INFO L226 Difference]: Without dead ends: 724 [2024-10-14 02:59:00,414 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-10-14 02:59:00,414 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 1514 mSDsluCounter, 1532 mSDsCounter, 0 mSdLazyCounter, 6061 mSolverCounterSat, 589 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1515 SdHoareTripleChecker+Valid, 1731 SdHoareTripleChecker+Invalid, 6650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 589 IncrementalHoareTripleChecker+Valid, 6061 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-10-14 02:59:00,415 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1515 Valid, 1731 Invalid, 6650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [589 Valid, 6061 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-10-14 02:59:00,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2024-10-14 02:59:00,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 519. [2024-10-14 02:59:00,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 391 states have (on average 1.5831202046035806) internal successors, (619), 400 states have internal predecessors, (619), 94 states have call successors, (94), 30 states have call predecessors, (94), 33 states have return successors, (103), 90 states have call predecessors, (103), 91 states have call successors, (103) [2024-10-14 02:59:00,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 816 transitions. [2024-10-14 02:59:00,457 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 816 transitions. Word has length 146 [2024-10-14 02:59:00,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:59:00,457 INFO L471 AbstractCegarLoop]: Abstraction has 519 states and 816 transitions. [2024-10-14 02:59:00,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.0) internal successors, (88), 8 states have internal predecessors, (88), 4 states have call successors, (22), 6 states have call predecessors, (22), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-14 02:59:00,458 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 816 transitions. [2024-10-14 02:59:00,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-10-14 02:59:00,460 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:59:00,460 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:59:00,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 02:59:00,461 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:59:00,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:59:00,461 INFO L85 PathProgramCache]: Analyzing trace with hash -907187620, now seen corresponding path program 1 times [2024-10-14 02:59:00,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:59:00,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234883919] [2024-10-14 02:59:00,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:59:00,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:59:00,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:00,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:59:00,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:00,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:59:00,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:00,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:59:00,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:00,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:59:00,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:00,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:59:00,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:00,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:59:00,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:00,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 02:59:00,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:00,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 02:59:00,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:00,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-14 02:59:00,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:00,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 02:59:00,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:00,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-14 02:59:00,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:00,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-14 02:59:00,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:00,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 02:59:00,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:00,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-14 02:59:00,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:00,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-14 02:59:00,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:00,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-14 02:59:00,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:00,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 02:59:00,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:00,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-14 02:59:00,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:00,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-14 02:59:00,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:00,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-10-14 02:59:00,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:00,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-10-14 02:59:00,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:00,852 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-10-14 02:59:00,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:59:00,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234883919] [2024-10-14 02:59:00,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234883919] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 02:59:00,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1200959928] [2024-10-14 02:59:00,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:59:00,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 02:59:00,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 02:59:00,855 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 02:59:00,856 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-14 02:59:01,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:01,204 INFO L255 TraceCheckSpWp]: Trace formula consists of 1325 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 02:59:01,208 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 02:59:01,249 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-10-14 02:59:01,250 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 02:59:01,387 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-10-14 02:59:01,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1200959928] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 02:59:01,388 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 02:59:01,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2024-10-14 02:59:01,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363092286] [2024-10-14 02:59:01,389 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 02:59:01,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-14 02:59:01,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:59:01,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-14 02:59:01,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-10-14 02:59:01,391 INFO L87 Difference]: Start difference. First operand 519 states and 816 transitions. Second operand has 15 states, 14 states have (on average 10.928571428571429) internal successors, (153), 11 states have internal predecessors, (153), 4 states have call successors, (50), 6 states have call predecessors, (50), 3 states have return successors, (40), 3 states have call predecessors, (40), 4 states have call successors, (40) [2024-10-14 02:59:04,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:59:04,829 INFO L93 Difference]: Finished difference Result 1657 states and 2764 transitions. [2024-10-14 02:59:04,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-14 02:59:04,829 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 10.928571428571429) internal successors, (153), 11 states have internal predecessors, (153), 4 states have call successors, (50), 6 states have call predecessors, (50), 3 states have return successors, (40), 3 states have call predecessors, (40), 4 states have call successors, (40) Word has length 165 [2024-10-14 02:59:04,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:59:04,837 INFO L225 Difference]: With dead ends: 1657 [2024-10-14 02:59:04,837 INFO L226 Difference]: Without dead ends: 1164 [2024-10-14 02:59:04,840 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 397 GetRequests, 367 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=164, Invalid=828, Unknown=0, NotChecked=0, Total=992 [2024-10-14 02:59:04,840 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 3043 mSDsluCounter, 1721 mSDsCounter, 0 mSdLazyCounter, 5590 mSolverCounterSat, 1060 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3064 SdHoareTripleChecker+Valid, 1907 SdHoareTripleChecker+Invalid, 6650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1060 IncrementalHoareTripleChecker+Valid, 5590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-10-14 02:59:04,841 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3064 Valid, 1907 Invalid, 6650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1060 Valid, 5590 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-10-14 02:59:04,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1164 states. [2024-10-14 02:59:04,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1164 to 944. [2024-10-14 02:59:04,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 944 states, 737 states have (on average 1.637720488466757) internal successors, (1207), 746 states have internal predecessors, (1207), 173 states have call successors, (173), 30 states have call predecessors, (173), 33 states have return successors, (192), 169 states have call predecessors, (192), 170 states have call successors, (192) [2024-10-14 02:59:04,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 944 states to 944 states and 1572 transitions. [2024-10-14 02:59:04,905 INFO L78 Accepts]: Start accepts. Automaton has 944 states and 1572 transitions. Word has length 165 [2024-10-14 02:59:04,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:59:04,906 INFO L471 AbstractCegarLoop]: Abstraction has 944 states and 1572 transitions. [2024-10-14 02:59:04,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 10.928571428571429) internal successors, (153), 11 states have internal predecessors, (153), 4 states have call successors, (50), 6 states have call predecessors, (50), 3 states have return successors, (40), 3 states have call predecessors, (40), 4 states have call successors, (40) [2024-10-14 02:59:04,907 INFO L276 IsEmpty]: Start isEmpty. Operand 944 states and 1572 transitions. [2024-10-14 02:59:04,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-14 02:59:04,914 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:59:04,914 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:59:04,935 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-14 02:59:05,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 02:59:05,115 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:59:05,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:59:05,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1042501425, now seen corresponding path program 1 times [2024-10-14 02:59:05,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:59:05,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607538834] [2024-10-14 02:59:05,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:59:05,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:59:05,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:05,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:59:05,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:05,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:59:05,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:05,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:59:05,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:05,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:59:05,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:05,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:59:05,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:05,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:59:05,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:05,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-14 02:59:05,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:05,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-14 02:59:05,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:05,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 02:59:05,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:05,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-14 02:59:05,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:05,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-14 02:59:05,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:05,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-14 02:59:05,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:05,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 02:59:05,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:05,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-14 02:59:05,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:05,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-14 02:59:05,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:05,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-14 02:59:05,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:05,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-14 02:59:05,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:05,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-14 02:59:05,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:05,265 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-10-14 02:59:05,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:59:05,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607538834] [2024-10-14 02:59:05,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607538834] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:59:05,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:59:05,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 02:59:05,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482686830] [2024-10-14 02:59:05,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:59:05,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 02:59:05,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:59:05,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 02:59:05,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 02:59:05,268 INFO L87 Difference]: Start difference. First operand 944 states and 1572 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-14 02:59:07,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:59:07,198 INFO L93 Difference]: Finished difference Result 2432 states and 4153 transitions. [2024-10-14 02:59:07,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 02:59:07,199 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 151 [2024-10-14 02:59:07,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:59:07,210 INFO L225 Difference]: With dead ends: 2432 [2024-10-14 02:59:07,210 INFO L226 Difference]: Without dead ends: 1556 [2024-10-14 02:59:07,213 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-14 02:59:07,213 INFO L432 NwaCegarLoop]: 215 mSDtfsCounter, 1649 mSDsluCounter, 737 mSDsCounter, 0 mSdLazyCounter, 2046 mSolverCounterSat, 656 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1668 SdHoareTripleChecker+Valid, 952 SdHoareTripleChecker+Invalid, 2702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 656 IncrementalHoareTripleChecker+Valid, 2046 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-14 02:59:07,214 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1668 Valid, 952 Invalid, 2702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [656 Valid, 2046 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-14 02:59:07,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1556 states. [2024-10-14 02:59:07,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1556 to 1346. [2024-10-14 02:59:07,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1346 states, 1060 states have (on average 1.6547169811320754) internal successors, (1754), 1069 states have internal predecessors, (1754), 252 states have call successors, (252), 30 states have call predecessors, (252), 33 states have return successors, (281), 248 states have call predecessors, (281), 249 states have call successors, (281) [2024-10-14 02:59:07,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1346 states to 1346 states and 2287 transitions. [2024-10-14 02:59:07,290 INFO L78 Accepts]: Start accepts. Automaton has 1346 states and 2287 transitions. Word has length 151 [2024-10-14 02:59:07,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:59:07,290 INFO L471 AbstractCegarLoop]: Abstraction has 1346 states and 2287 transitions. [2024-10-14 02:59:07,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-14 02:59:07,290 INFO L276 IsEmpty]: Start isEmpty. Operand 1346 states and 2287 transitions. [2024-10-14 02:59:07,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-10-14 02:59:07,297 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:59:07,297 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:59:07,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 02:59:07,298 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:59:07,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:59:07,298 INFO L85 PathProgramCache]: Analyzing trace with hash 2062366904, now seen corresponding path program 1 times [2024-10-14 02:59:07,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:59:07,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26798647] [2024-10-14 02:59:07,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:59:07,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:59:07,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:07,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:59:07,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:07,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:59:07,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:07,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:59:07,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:07,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:59:07,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:07,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:59:07,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:07,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:59:07,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:07,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 02:59:07,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:07,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-14 02:59:07,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:07,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-14 02:59:07,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:07,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 02:59:07,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:07,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 02:59:07,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:07,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-14 02:59:07,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:07,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-14 02:59:07,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:07,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 02:59:07,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:07,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 02:59:07,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:07,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-14 02:59:07,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:07,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-14 02:59:07,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:07,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-14 02:59:07,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:07,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-14 02:59:07,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:07,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-14 02:59:07,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:07,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-10-14 02:59:07,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:07,431 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-10-14 02:59:07,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:59:07,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26798647] [2024-10-14 02:59:07,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26798647] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:59:07,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:59:07,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 02:59:07,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763934510] [2024-10-14 02:59:07,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:59:07,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 02:59:07,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:59:07,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 02:59:07,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 02:59:07,433 INFO L87 Difference]: Start difference. First operand 1346 states and 2287 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-10-14 02:59:09,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:59:09,292 INFO L93 Difference]: Finished difference Result 3435 states and 5930 transitions. [2024-10-14 02:59:09,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 02:59:09,292 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 170 [2024-10-14 02:59:09,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:59:09,304 INFO L225 Difference]: With dead ends: 3435 [2024-10-14 02:59:09,304 INFO L226 Difference]: Without dead ends: 2207 [2024-10-14 02:59:09,309 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-14 02:59:09,309 INFO L432 NwaCegarLoop]: 202 mSDtfsCounter, 1645 mSDsluCounter, 719 mSDsCounter, 0 mSdLazyCounter, 2025 mSolverCounterSat, 662 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1663 SdHoareTripleChecker+Valid, 921 SdHoareTripleChecker+Invalid, 2687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 662 IncrementalHoareTripleChecker+Valid, 2025 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-14 02:59:09,309 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1663 Valid, 921 Invalid, 2687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [662 Valid, 2025 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-14 02:59:09,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2207 states. [2024-10-14 02:59:09,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2207 to 1997. [2024-10-14 02:59:09,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1997 states, 1592 states have (on average 1.664572864321608) internal successors, (2650), 1601 states have internal predecessors, (2650), 371 states have call successors, (371), 30 states have call predecessors, (371), 33 states have return successors, (400), 367 states have call predecessors, (400), 368 states have call successors, (400) [2024-10-14 02:59:09,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1997 states to 1997 states and 3421 transitions. [2024-10-14 02:59:09,416 INFO L78 Accepts]: Start accepts. Automaton has 1997 states and 3421 transitions. Word has length 170 [2024-10-14 02:59:09,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:59:09,416 INFO L471 AbstractCegarLoop]: Abstraction has 1997 states and 3421 transitions. [2024-10-14 02:59:09,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-10-14 02:59:09,417 INFO L276 IsEmpty]: Start isEmpty. Operand 1997 states and 3421 transitions. [2024-10-14 02:59:09,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-14 02:59:09,427 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:59:09,427 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:59:09,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 02:59:09,427 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:59:09,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:59:09,428 INFO L85 PathProgramCache]: Analyzing trace with hash -249109969, now seen corresponding path program 1 times [2024-10-14 02:59:09,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:59:09,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654122546] [2024-10-14 02:59:09,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:59:09,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:59:09,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:09,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:59:09,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:09,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:59:09,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:09,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:59:09,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:09,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:59:09,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:09,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:59:09,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:09,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:59:09,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:09,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-14 02:59:09,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:09,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 02:59:09,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:09,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-14 02:59:09,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:09,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 02:59:09,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:09,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-14 02:59:09,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:09,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-14 02:59:09,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:09,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 02:59:09,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:09,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-14 02:59:09,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:09,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 02:59:09,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:09,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 02:59:09,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:09,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-14 02:59:09,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:09,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-14 02:59:09,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:09,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-14 02:59:09,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:09,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-10-14 02:59:09,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:09,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-10-14 02:59:09,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:09,564 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-10-14 02:59:09,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:59:09,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654122546] [2024-10-14 02:59:09,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654122546] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:59:09,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:59:09,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 02:59:09,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506034186] [2024-10-14 02:59:09,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:59:09,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 02:59:09,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:59:09,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 02:59:09,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 02:59:09,566 INFO L87 Difference]: Start difference. First operand 1997 states and 3421 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-10-14 02:59:11,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:59:11,369 INFO L93 Difference]: Finished difference Result 4959 states and 8648 transitions. [2024-10-14 02:59:11,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 02:59:11,369 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 171 [2024-10-14 02:59:11,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:59:11,385 INFO L225 Difference]: With dead ends: 4959 [2024-10-14 02:59:11,386 INFO L226 Difference]: Without dead ends: 3208 [2024-10-14 02:59:11,392 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-14 02:59:11,393 INFO L432 NwaCegarLoop]: 197 mSDtfsCounter, 1648 mSDsluCounter, 710 mSDsCounter, 0 mSdLazyCounter, 2002 mSolverCounterSat, 657 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1667 SdHoareTripleChecker+Valid, 907 SdHoareTripleChecker+Invalid, 2659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 657 IncrementalHoareTripleChecker+Valid, 2002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-14 02:59:11,393 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1667 Valid, 907 Invalid, 2659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [657 Valid, 2002 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-14 02:59:11,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3208 states. [2024-10-14 02:59:11,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3208 to 2998. [2024-10-14 02:59:11,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2998 states, 2431 states have (on average 1.6725627313862608) internal successors, (4066), 2440 states have internal predecessors, (4066), 533 states have call successors, (533), 30 states have call predecessors, (533), 33 states have return successors, (578), 529 states have call predecessors, (578), 530 states have call successors, (578) [2024-10-14 02:59:11,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2998 states to 2998 states and 5177 transitions. [2024-10-14 02:59:11,540 INFO L78 Accepts]: Start accepts. Automaton has 2998 states and 5177 transitions. Word has length 171 [2024-10-14 02:59:11,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:59:11,541 INFO L471 AbstractCegarLoop]: Abstraction has 2998 states and 5177 transitions. [2024-10-14 02:59:11,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-10-14 02:59:11,541 INFO L276 IsEmpty]: Start isEmpty. Operand 2998 states and 5177 transitions. [2024-10-14 02:59:11,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-10-14 02:59:11,557 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:59:11,557 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:59:11,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 02:59:11,557 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:59:11,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:59:11,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1892845305, now seen corresponding path program 1 times [2024-10-14 02:59:11,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:59:11,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295452737] [2024-10-14 02:59:11,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:59:11,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:59:11,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:11,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:59:11,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:11,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:59:11,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:11,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:59:11,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:11,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:59:11,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:11,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:59:11,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:11,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:59:11,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:11,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-14 02:59:11,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:11,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-14 02:59:11,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:11,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 02:59:11,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:11,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-14 02:59:11,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:11,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 02:59:11,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:11,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 02:59:11,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:11,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-14 02:59:11,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:11,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-14 02:59:11,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:11,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-14 02:59:11,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:11,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-14 02:59:11,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:11,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-14 02:59:11,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:11,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-14 02:59:11,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:11,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-14 02:59:11,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:11,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-10-14 02:59:11,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:11,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-10-14 02:59:11,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:11,686 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-10-14 02:59:11,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:59:11,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295452737] [2024-10-14 02:59:11,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295452737] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:59:11,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:59:11,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 02:59:11,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188347649] [2024-10-14 02:59:11,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:59:11,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 02:59:11,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:59:11,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 02:59:11,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 02:59:11,688 INFO L87 Difference]: Start difference. First operand 2998 states and 5177 transitions. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-10-14 02:59:13,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:59:13,566 INFO L93 Difference]: Finished difference Result 7371 states and 12961 transitions. [2024-10-14 02:59:13,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 02:59:13,567 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 172 [2024-10-14 02:59:13,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:59:13,591 INFO L225 Difference]: With dead ends: 7371 [2024-10-14 02:59:13,591 INFO L226 Difference]: Without dead ends: 4828 [2024-10-14 02:59:13,602 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-14 02:59:13,603 INFO L432 NwaCegarLoop]: 197 mSDtfsCounter, 1646 mSDsluCounter, 710 mSDsCounter, 0 mSdLazyCounter, 2001 mSolverCounterSat, 657 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1665 SdHoareTripleChecker+Valid, 907 SdHoareTripleChecker+Invalid, 2658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 657 IncrementalHoareTripleChecker+Valid, 2001 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-14 02:59:13,603 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1665 Valid, 907 Invalid, 2658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [657 Valid, 2001 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-14 02:59:13,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4828 states. [2024-10-14 02:59:13,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4828 to 4618. [2024-10-14 02:59:13,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4618 states, 3806 states have (on average 1.6784025223331582) internal successors, (6388), 3815 states have internal predecessors, (6388), 778 states have call successors, (778), 30 states have call predecessors, (778), 33 states have return successors, (849), 774 states have call predecessors, (849), 775 states have call successors, (849) [2024-10-14 02:59:13,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4618 states to 4618 states and 8015 transitions. [2024-10-14 02:59:13,879 INFO L78 Accepts]: Start accepts. Automaton has 4618 states and 8015 transitions. Word has length 172 [2024-10-14 02:59:13,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:59:13,879 INFO L471 AbstractCegarLoop]: Abstraction has 4618 states and 8015 transitions. [2024-10-14 02:59:13,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-10-14 02:59:13,880 INFO L276 IsEmpty]: Start isEmpty. Operand 4618 states and 8015 transitions. [2024-10-14 02:59:13,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-10-14 02:59:13,902 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:59:13,902 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:59:13,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-14 02:59:13,903 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:59:13,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:59:13,903 INFO L85 PathProgramCache]: Analyzing trace with hash 939064459, now seen corresponding path program 1 times [2024-10-14 02:59:13,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:59:13,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191156397] [2024-10-14 02:59:13,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:59:13,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:59:13,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:13,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:59:13,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:13,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:59:13,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:13,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:59:13,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:13,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:59:13,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:13,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:59:13,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:13,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:59:13,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:13,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 02:59:13,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:14,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-14 02:59:14,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:14,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 02:59:14,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:14,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 02:59:14,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:14,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-14 02:59:14,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:14,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-14 02:59:14,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:14,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 02:59:14,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:14,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 02:59:14,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:14,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-14 02:59:14,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:14,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-14 02:59:14,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:14,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-14 02:59:14,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:14,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-14 02:59:14,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:14,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-14 02:59:14,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:14,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-14 02:59:14,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:14,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-10-14 02:59:14,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:14,026 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-10-14 02:59:14,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:59:14,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191156397] [2024-10-14 02:59:14,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191156397] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:59:14,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:59:14,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 02:59:14,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063251303] [2024-10-14 02:59:14,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:59:14,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 02:59:14,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:59:14,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 02:59:14,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 02:59:14,028 INFO L87 Difference]: Start difference. First operand 4618 states and 8015 transitions. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-10-14 02:59:15,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:59:15,952 INFO L93 Difference]: Finished difference Result 11448 states and 20214 transitions. [2024-10-14 02:59:15,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 02:59:15,953 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 173 [2024-10-14 02:59:15,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:59:15,992 INFO L225 Difference]: With dead ends: 11448 [2024-10-14 02:59:15,992 INFO L226 Difference]: Without dead ends: 7588 [2024-10-14 02:59:16,008 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-14 02:59:16,009 INFO L432 NwaCegarLoop]: 212 mSDtfsCounter, 1644 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 2027 mSolverCounterSat, 675 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1663 SdHoareTripleChecker+Valid, 943 SdHoareTripleChecker+Invalid, 2702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 675 IncrementalHoareTripleChecker+Valid, 2027 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-14 02:59:16,009 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1663 Valid, 943 Invalid, 2702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [675 Valid, 2027 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-14 02:59:16,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7588 states. [2024-10-14 02:59:16,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7588 to 7378. [2024-10-14 02:59:16,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7378 states, 6073 states have (on average 1.6736374114934958) internal successors, (10164), 6082 states have internal predecessors, (10164), 1271 states have call successors, (1271), 30 states have call predecessors, (1271), 33 states have return successors, (1386), 1267 states have call predecessors, (1386), 1268 states have call successors, (1386) [2024-10-14 02:59:16,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7378 states to 7378 states and 12821 transitions. [2024-10-14 02:59:16,384 INFO L78 Accepts]: Start accepts. Automaton has 7378 states and 12821 transitions. Word has length 173 [2024-10-14 02:59:16,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:59:16,385 INFO L471 AbstractCegarLoop]: Abstraction has 7378 states and 12821 transitions. [2024-10-14 02:59:16,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-10-14 02:59:16,386 INFO L276 IsEmpty]: Start isEmpty. Operand 7378 states and 12821 transitions. [2024-10-14 02:59:16,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-10-14 02:59:16,428 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:59:16,428 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:59:16,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-14 02:59:16,429 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:59:16,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:59:16,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1480664221, now seen corresponding path program 1 times [2024-10-14 02:59:16,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:59:16,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898935863] [2024-10-14 02:59:16,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:59:16,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:59:16,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:16,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:59:16,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:16,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:59:16,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:16,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:59:16,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:16,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:59:16,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:16,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:59:16,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:16,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:59:16,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:16,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-14 02:59:16,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:16,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 02:59:16,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:16,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 02:59:16,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:16,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-14 02:59:16,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:16,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-14 02:59:16,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:16,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-14 02:59:16,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:16,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 02:59:16,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:16,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-14 02:59:16,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:16,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-14 02:59:16,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:16,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-14 02:59:16,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:16,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-14 02:59:16,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:16,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-10-14 02:59:16,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:16,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-10-14 02:59:16,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:16,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-14 02:59:16,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:16,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-10-14 02:59:16,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:16,556 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-10-14 02:59:16,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:59:16,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898935863] [2024-10-14 02:59:16,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898935863] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:59:16,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:59:16,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 02:59:16,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205065070] [2024-10-14 02:59:16,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:59:16,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 02:59:16,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:59:16,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 02:59:16,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 02:59:16,560 INFO L87 Difference]: Start difference. First operand 7378 states and 12821 transitions. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-10-14 02:59:18,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:59:18,467 INFO L93 Difference]: Finished difference Result 18807 states and 33234 transitions. [2024-10-14 02:59:18,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 02:59:18,467 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 174 [2024-10-14 02:59:18,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:59:18,517 INFO L225 Difference]: With dead ends: 18807 [2024-10-14 02:59:18,517 INFO L226 Difference]: Without dead ends: 12573 [2024-10-14 02:59:18,539 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-14 02:59:18,540 INFO L432 NwaCegarLoop]: 201 mSDtfsCounter, 1636 mSDsluCounter, 715 mSDsCounter, 0 mSdLazyCounter, 2039 mSolverCounterSat, 654 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1654 SdHoareTripleChecker+Valid, 916 SdHoareTripleChecker+Invalid, 2693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 654 IncrementalHoareTripleChecker+Valid, 2039 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-14 02:59:18,540 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1654 Valid, 916 Invalid, 2693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [654 Valid, 2039 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-14 02:59:18,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12573 states. [2024-10-14 02:59:19,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12573 to 12363. [2024-10-14 02:59:19,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12363 states, 10236 states have (on average 1.6742868307932786) internal successors, (17138), 10245 states have internal predecessors, (17138), 2093 states have call successors, (2093), 30 states have call predecessors, (2093), 33 states have return successors, (2286), 2089 states have call predecessors, (2286), 2090 states have call successors, (2286) [2024-10-14 02:59:19,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12363 states to 12363 states and 21517 transitions. [2024-10-14 02:59:19,068 INFO L78 Accepts]: Start accepts. Automaton has 12363 states and 21517 transitions. Word has length 174 [2024-10-14 02:59:19,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:59:19,069 INFO L471 AbstractCegarLoop]: Abstraction has 12363 states and 21517 transitions. [2024-10-14 02:59:19,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-10-14 02:59:19,069 INFO L276 IsEmpty]: Start isEmpty. Operand 12363 states and 21517 transitions. [2024-10-14 02:59:19,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-10-14 02:59:19,109 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:59:19,109 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:59:19,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-14 02:59:19,110 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:59:19,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:59:19,110 INFO L85 PathProgramCache]: Analyzing trace with hash -167545959, now seen corresponding path program 1 times [2024-10-14 02:59:19,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:59:19,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080073675] [2024-10-14 02:59:19,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:59:19,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:59:19,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:19,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:59:19,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:19,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:59:19,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:19,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:59:19,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:19,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:59:19,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:19,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:59:19,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:19,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:59:19,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:19,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-14 02:59:19,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:19,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 02:59:19,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:19,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 02:59:19,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:19,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-14 02:59:19,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:19,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 02:59:19,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:19,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 02:59:19,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:19,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 02:59:19,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:19,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-14 02:59:19,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:19,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-14 02:59:19,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:19,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-10-14 02:59:19,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:19,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-14 02:59:19,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:19,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-14 02:59:19,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:19,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-10-14 02:59:19,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:19,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-14 02:59:19,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:19,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-14 02:59:19,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:19,239 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-10-14 02:59:19,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:59:19,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080073675] [2024-10-14 02:59:19,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080073675] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:59:19,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:59:19,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 02:59:19,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434252636] [2024-10-14 02:59:19,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:59:19,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 02:59:19,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:59:19,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 02:59:19,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 02:59:19,241 INFO L87 Difference]: Start difference. First operand 12363 states and 21517 transitions. Second operand has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-10-14 02:59:21,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:59:21,436 INFO L93 Difference]: Finished difference Result 29773 states and 52417 transitions. [2024-10-14 02:59:21,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 02:59:21,437 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 175 [2024-10-14 02:59:21,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:59:21,524 INFO L225 Difference]: With dead ends: 29773 [2024-10-14 02:59:21,524 INFO L226 Difference]: Without dead ends: 19533 [2024-10-14 02:59:21,563 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-14 02:59:21,564 INFO L432 NwaCegarLoop]: 197 mSDtfsCounter, 1637 mSDsluCounter, 685 mSDsCounter, 0 mSdLazyCounter, 2007 mSolverCounterSat, 658 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1656 SdHoareTripleChecker+Valid, 882 SdHoareTripleChecker+Invalid, 2665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 658 IncrementalHoareTripleChecker+Valid, 2007 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-14 02:59:21,564 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1656 Valid, 882 Invalid, 2665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [658 Valid, 2007 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-14 02:59:21,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19533 states. [2024-10-14 02:59:22,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19533 to 19323. [2024-10-14 02:59:22,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19323 states, 15993 states have (on average 1.6526605389858062) internal successors, (26431), 16002 states have internal predecessors, (26431), 3296 states have call successors, (3296), 30 states have call predecessors, (3296), 33 states have return successors, (3633), 3292 states have call predecessors, (3633), 3293 states have call successors, (3633) [2024-10-14 02:59:22,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19323 states to 19323 states and 33360 transitions. [2024-10-14 02:59:22,452 INFO L78 Accepts]: Start accepts. Automaton has 19323 states and 33360 transitions. Word has length 175 [2024-10-14 02:59:22,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:59:22,452 INFO L471 AbstractCegarLoop]: Abstraction has 19323 states and 33360 transitions. [2024-10-14 02:59:22,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-10-14 02:59:22,453 INFO L276 IsEmpty]: Start isEmpty. Operand 19323 states and 33360 transitions. [2024-10-14 02:59:22,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-10-14 02:59:22,500 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:59:22,500 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:59:22,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-14 02:59:22,500 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:59:22,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:59:22,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1781267454, now seen corresponding path program 1 times [2024-10-14 02:59:22,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:59:22,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188003775] [2024-10-14 02:59:22,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:59:22,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:59:22,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:22,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:59:22,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:22,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:59:22,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:22,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:59:22,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:22,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:59:22,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:22,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:59:22,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:22,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:59:22,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:22,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 02:59:22,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:22,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 02:59:22,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:22,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-14 02:59:22,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:22,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 02:59:22,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:22,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-14 02:59:22,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:22,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 02:59:22,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:22,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-14 02:59:22,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:22,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 02:59:22,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:22,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-14 02:59:22,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:22,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-14 02:59:22,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:22,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-14 02:59:22,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:22,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-14 02:59:22,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:22,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-14 02:59:22,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:22,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-10-14 02:59:22,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:22,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-10-14 02:59:22,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:22,620 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-10-14 02:59:22,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:59:22,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188003775] [2024-10-14 02:59:22,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188003775] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:59:22,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:59:22,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 02:59:22,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369665944] [2024-10-14 02:59:22,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:59:22,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 02:59:22,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:59:22,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 02:59:22,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 02:59:22,622 INFO L87 Difference]: Start difference. First operand 19323 states and 33360 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-10-14 02:59:25,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:59:25,291 INFO L93 Difference]: Finished difference Result 51214 states and 89950 transitions. [2024-10-14 02:59:25,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 02:59:25,292 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 176 [2024-10-14 02:59:25,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:59:25,428 INFO L225 Difference]: With dead ends: 51214 [2024-10-14 02:59:25,428 INFO L226 Difference]: Without dead ends: 34662 [2024-10-14 02:59:25,482 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-14 02:59:25,483 INFO L432 NwaCegarLoop]: 200 mSDtfsCounter, 1638 mSDsluCounter, 712 mSDsCounter, 0 mSdLazyCounter, 2007 mSolverCounterSat, 678 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1657 SdHoareTripleChecker+Valid, 912 SdHoareTripleChecker+Invalid, 2685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 678 IncrementalHoareTripleChecker+Valid, 2007 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-14 02:59:25,483 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1657 Valid, 912 Invalid, 2685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [678 Valid, 2007 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-14 02:59:25,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34662 states. [2024-10-14 02:59:27,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34662 to 34452. [2024-10-14 02:59:27,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34452 states, 28672 states have (on average 1.6502511160714286) internal successors, (47316), 28681 states have internal predecessors, (47316), 5746 states have call successors, (5746), 30 states have call predecessors, (5746), 33 states have return successors, (6357), 5742 states have call predecessors, (6357), 5743 states have call successors, (6357) [2024-10-14 02:59:27,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34452 states to 34452 states and 59419 transitions. [2024-10-14 02:59:27,191 INFO L78 Accepts]: Start accepts. Automaton has 34452 states and 59419 transitions. Word has length 176 [2024-10-14 02:59:27,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:59:27,192 INFO L471 AbstractCegarLoop]: Abstraction has 34452 states and 59419 transitions. [2024-10-14 02:59:27,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-10-14 02:59:27,193 INFO L276 IsEmpty]: Start isEmpty. Operand 34452 states and 59419 transitions. [2024-10-14 02:59:27,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-10-14 02:59:27,618 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:59:27,618 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:59:27,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-14 02:59:27,619 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:59:27,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:59:27,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1097583571, now seen corresponding path program 1 times [2024-10-14 02:59:27,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:59:27,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12967222] [2024-10-14 02:59:27,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:59:27,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:59:27,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:27,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:59:27,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:27,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:59:27,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:27,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:59:27,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:27,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:59:27,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:27,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:59:27,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:27,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:59:27,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:27,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-14 02:59:27,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:27,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 02:59:27,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:27,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-14 02:59:27,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:27,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 02:59:27,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:27,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-14 02:59:27,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:27,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-14 02:59:27,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:27,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 02:59:27,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:27,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 02:59:27,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:27,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-14 02:59:27,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:27,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-14 02:59:27,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:27,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-14 02:59:27,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:27,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-14 02:59:27,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:27,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-14 02:59:27,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:27,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-10-14 02:59:27,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:27,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-10-14 02:59:27,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:27,807 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-10-14 02:59:27,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:59:27,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12967222] [2024-10-14 02:59:27,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12967222] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:59:27,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:59:27,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 02:59:27,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051575047] [2024-10-14 02:59:27,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:59:27,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 02:59:27,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:59:27,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 02:59:27,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 02:59:27,809 INFO L87 Difference]: Start difference. First operand 34452 states and 59419 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-10-14 02:59:30,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:59:30,969 INFO L93 Difference]: Finished difference Result 94096 states and 164544 transitions. [2024-10-14 02:59:30,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 02:59:30,970 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 177 [2024-10-14 02:59:30,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:59:31,255 INFO L225 Difference]: With dead ends: 94096 [2024-10-14 02:59:31,255 INFO L226 Difference]: Without dead ends: 63338 [2024-10-14 02:59:31,347 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-14 02:59:31,348 INFO L432 NwaCegarLoop]: 207 mSDtfsCounter, 1633 mSDsluCounter, 716 mSDsCounter, 0 mSdLazyCounter, 2060 mSolverCounterSat, 660 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1651 SdHoareTripleChecker+Valid, 923 SdHoareTripleChecker+Invalid, 2720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 660 IncrementalHoareTripleChecker+Valid, 2060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-14 02:59:31,348 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1651 Valid, 923 Invalid, 2720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [660 Valid, 2060 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-14 02:59:31,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63338 states. [2024-10-14 02:59:33,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63338 to 63128. [2024-10-14 02:59:33,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63128 states, 52835 states have (on average 1.6467871675972368) internal successors, (87008), 52844 states have internal predecessors, (87008), 10259 states have call successors, (10259), 30 states have call predecessors, (10259), 33 states have return successors, (11402), 10255 states have call predecessors, (11402), 10256 states have call successors, (11402) [2024-10-14 02:59:34,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63128 states to 63128 states and 108669 transitions. [2024-10-14 02:59:34,221 INFO L78 Accepts]: Start accepts. Automaton has 63128 states and 108669 transitions. Word has length 177 [2024-10-14 02:59:34,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:59:34,222 INFO L471 AbstractCegarLoop]: Abstraction has 63128 states and 108669 transitions. [2024-10-14 02:59:34,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-10-14 02:59:34,222 INFO L276 IsEmpty]: Start isEmpty. Operand 63128 states and 108669 transitions. [2024-10-14 02:59:34,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-10-14 02:59:34,355 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:59:34,355 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:59:34,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-14 02:59:34,355 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:59:34,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:59:34,356 INFO L85 PathProgramCache]: Analyzing trace with hash 1646740876, now seen corresponding path program 1 times [2024-10-14 02:59:34,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:59:34,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940748949] [2024-10-14 02:59:34,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:59:34,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:59:34,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:34,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:59:34,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:34,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:59:34,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:34,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:59:34,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:34,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:59:34,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:34,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:59:34,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:34,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:59:34,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:34,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-14 02:59:34,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:34,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-14 02:59:34,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:34,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 02:59:34,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:34,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-14 02:59:34,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:34,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-14 02:59:34,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:34,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 02:59:34,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:34,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 02:59:34,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:34,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-14 02:59:34,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:34,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-14 02:59:34,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:34,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-14 02:59:34,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:34,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-14 02:59:34,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:34,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-10-14 02:59:34,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:34,957 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-10-14 02:59:34,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:59:34,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940748949] [2024-10-14 02:59:34,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940748949] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:59:34,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:59:34,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 02:59:34,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92357939] [2024-10-14 02:59:34,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:59:34,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 02:59:34,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:59:34,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 02:59:34,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 02:59:34,961 INFO L87 Difference]: Start difference. First operand 63128 states and 108669 transitions. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-14 02:59:38,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:59:38,973 INFO L93 Difference]: Finished difference Result 118476 states and 207696 transitions. [2024-10-14 02:59:38,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 02:59:38,974 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 160 [2024-10-14 02:59:38,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:59:39,497 INFO L225 Difference]: With dead ends: 118476 [2024-10-14 02:59:39,498 INFO L226 Difference]: Without dead ends: 118224 [2024-10-14 02:59:39,550 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-14 02:59:39,551 INFO L432 NwaCegarLoop]: 206 mSDtfsCounter, 1625 mSDsluCounter, 719 mSDsCounter, 0 mSdLazyCounter, 2072 mSolverCounterSat, 642 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1642 SdHoareTripleChecker+Valid, 925 SdHoareTripleChecker+Invalid, 2714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 642 IncrementalHoareTripleChecker+Valid, 2072 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-14 02:59:39,551 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1642 Valid, 925 Invalid, 2714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [642 Valid, 2072 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-14 02:59:39,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118224 states. [2024-10-14 02:59:43,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118224 to 118014. [2024-10-14 02:59:43,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118014 states, 99353 states have (on average 1.64220506678208) internal successors, (163158), 99362 states have internal predecessors, (163158), 18627 states have call successors, (18627), 30 states have call predecessors, (18627), 33 states have return successors, (20816), 18623 states have call predecessors, (20816), 18624 states have call successors, (20816) [2024-10-14 02:59:44,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118014 states to 118014 states and 202601 transitions. [2024-10-14 02:59:44,556 INFO L78 Accepts]: Start accepts. Automaton has 118014 states and 202601 transitions. Word has length 160 [2024-10-14 02:59:44,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:59:44,557 INFO L471 AbstractCegarLoop]: Abstraction has 118014 states and 202601 transitions. [2024-10-14 02:59:44,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-14 02:59:44,557 INFO L276 IsEmpty]: Start isEmpty. Operand 118014 states and 202601 transitions. [2024-10-14 02:59:44,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-10-14 02:59:44,667 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:59:44,668 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:59:44,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-14 02:59:44,668 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:59:44,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:59:44,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1106782848, now seen corresponding path program 1 times [2024-10-14 02:59:44,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:59:44,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16426948] [2024-10-14 02:59:44,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:59:44,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:59:44,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:45,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:59:45,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:45,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:59:45,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:45,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:59:45,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:45,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:59:45,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:45,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:59:45,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:45,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:59:45,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:45,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 02:59:45,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:45,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-14 02:59:45,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:45,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 02:59:45,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:45,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 02:59:45,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:45,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 02:59:45,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:45,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 02:59:45,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:45,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-14 02:59:45,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:45,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-14 02:59:45,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:45,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-14 02:59:45,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:45,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-14 02:59:45,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:45,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-14 02:59:45,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:45,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-14 02:59:45,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:45,227 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-10-14 02:59:45,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:59:45,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16426948] [2024-10-14 02:59:45,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16426948] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 02:59:45,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [852047495] [2024-10-14 02:59:45,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:59:45,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 02:59:45,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 02:59:45,230 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 02:59:45,231 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-14 02:59:45,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:59:45,585 INFO L255 TraceCheckSpWp]: Trace formula consists of 1295 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-14 02:59:45,590 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 02:59:45,795 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-10-14 02:59:45,796 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 02:59:46,142 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-10-14 02:59:46,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [852047495] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 02:59:46,143 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 02:59:46,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 9, 9] total 32 [2024-10-14 02:59:46,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984736142] [2024-10-14 02:59:46,143 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 02:59:46,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-10-14 02:59:46,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:59:46,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-10-14 02:59:46,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=908, Unknown=0, NotChecked=0, Total=992 [2024-10-14 02:59:46,145 INFO L87 Difference]: Start difference. First operand 118014 states and 202601 transitions. Second operand has 32 states, 30 states have (on average 8.133333333333333) internal successors, (244), 24 states have internal predecessors, (244), 9 states have call successors, (56), 12 states have call predecessors, (56), 12 states have return successors, (47), 11 states have call predecessors, (47), 9 states have call successors, (47)