./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec6_product33.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/email_spec6_product33.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f589c9222141e642cc5dd52da93380b476d19c138575c9f6da35a3e335e5e2df --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 23:09:02,911 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 23:09:02,966 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 23:09:02,969 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 23:09:02,971 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 23:09:02,995 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 23:09:02,996 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 23:09:02,996 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 23:09:02,997 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 23:09:02,998 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 23:09:02,998 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 23:09:02,999 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 23:09:02,999 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 23:09:03,000 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 23:09:03,001 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 23:09:03,001 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 23:09:03,001 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 23:09:03,001 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 23:09:03,004 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 23:09:03,004 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 23:09:03,004 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 23:09:03,005 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 23:09:03,005 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 23:09:03,005 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 23:09:03,005 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 23:09:03,006 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 23:09:03,006 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 23:09:03,006 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 23:09:03,006 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 23:09:03,006 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 23:09:03,006 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 23:09:03,007 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 23:09:03,007 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 23:09:03,007 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 23:09:03,007 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 23:09:03,007 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 23:09:03,007 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 23:09:03,008 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 23:09:03,008 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 23:09:03,008 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 23:09:03,008 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 23:09:03,008 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 23:09:03,009 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f589c9222141e642cc5dd52da93380b476d19c138575c9f6da35a3e335e5e2df [2024-11-09 23:09:03,214 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 23:09:03,235 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 23:09:03,237 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 23:09:03,238 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 23:09:03,238 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 23:09:03,239 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec6_product33.cil.c [2024-11-09 23:09:04,483 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 23:09:04,775 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 23:09:04,778 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec6_product33.cil.c [2024-11-09 23:09:04,804 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a7b3dc73/9405f564b0454cfaa7c26459fc07dddd/FLAG9623417b1 [2024-11-09 23:09:05,084 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a7b3dc73/9405f564b0454cfaa7c26459fc07dddd [2024-11-09 23:09:05,086 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 23:09:05,087 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 23:09:05,088 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 23:09:05,088 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 23:09:05,092 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 23:09:05,093 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:09:05" (1/1) ... [2024-11-09 23:09:05,093 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@165c44e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:09:05, skipping insertion in model container [2024-11-09 23:09:05,093 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:09:05" (1/1) ... [2024-11-09 23:09:05,146 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 23:09:05,356 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec6_product33.cil.c[1934,1947] [2024-11-09 23:09:05,668 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 23:09:05,684 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 23:09:05,693 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [48] [2024-11-09 23:09:05,697 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [66] [2024-11-09 23:09:05,697 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [75] [2024-11-09 23:09:05,698 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1155] [2024-11-09 23:09:05,698 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptDecrypt_spec.i","") [1582] [2024-11-09 23:09:05,698 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1628] [2024-11-09 23:09:05,698 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1857] [2024-11-09 23:09:05,698 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2145] [2024-11-09 23:09:05,701 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2180] [2024-11-09 23:09:05,702 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2546] [2024-11-09 23:09:05,702 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2945] [2024-11-09 23:09:05,705 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec6_product33.cil.c[1934,1947] [2024-11-09 23:09:05,771 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 23:09:05,809 INFO L204 MainTranslator]: Completed translation [2024-11-09 23:09:05,809 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:09:05 WrapperNode [2024-11-09 23:09:05,809 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 23:09:05,810 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 23:09:05,810 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 23:09:05,810 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 23:09:05,816 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:09:05" (1/1) ... [2024-11-09 23:09:05,846 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:09:05" (1/1) ... [2024-11-09 23:09:05,885 INFO L138 Inliner]: procedures = 135, calls = 217, calls flagged for inlining = 66, calls inlined = 61, statements flattened = 1105 [2024-11-09 23:09:05,886 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 23:09:05,886 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 23:09:05,886 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 23:09:05,887 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 23:09:05,903 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:09:05" (1/1) ... [2024-11-09 23:09:05,903 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:09:05" (1/1) ... [2024-11-09 23:09:05,912 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:09:05" (1/1) ... [2024-11-09 23:09:05,937 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4]. 29 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0]. [2024-11-09 23:09:05,938 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:09:05" (1/1) ... [2024-11-09 23:09:05,938 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:09:05" (1/1) ... [2024-11-09 23:09:05,956 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:09:05" (1/1) ... [2024-11-09 23:09:05,957 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:09:05" (1/1) ... [2024-11-09 23:09:05,960 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:09:05" (1/1) ... [2024-11-09 23:09:05,963 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:09:05" (1/1) ... [2024-11-09 23:09:05,969 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 23:09:05,970 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 23:09:05,970 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 23:09:05,970 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 23:09:05,971 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:09:05" (1/1) ... [2024-11-09 23:09:05,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 23:09:05,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:09:06,015 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 23:09:06,027 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 23:09:06,067 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-11-09 23:09:06,068 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-11-09 23:09:06,068 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-11-09 23:09:06,068 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-11-09 23:09:06,068 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-11-09 23:09:06,068 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-11-09 23:09:06,068 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-09 23:09:06,068 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-09 23:09:06,069 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-09 23:09:06,069 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-09 23:09:06,069 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-09 23:09:06,069 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-09 23:09:06,069 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-09 23:09:06,069 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-09 23:09:06,069 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-11-09 23:09:06,069 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-11-09 23:09:06,069 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-09 23:09:06,069 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-09 23:09:06,070 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-09 23:09:06,070 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-09 23:09:06,070 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-09 23:09:06,070 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-09 23:09:06,070 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2024-11-09 23:09:06,070 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2024-11-09 23:09:06,070 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-09 23:09:06,070 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-09 23:09:06,070 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 23:09:06,070 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-09 23:09:06,071 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-09 23:09:06,071 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-11-09 23:09:06,071 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-11-09 23:09:06,071 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-09 23:09:06,071 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-09 23:09:06,071 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-09 23:09:06,071 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-09 23:09:06,071 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-09 23:09:06,071 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-09 23:09:06,071 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-11-09 23:09:06,072 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-11-09 23:09:06,072 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-09 23:09:06,072 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-09 23:09:06,072 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-11-09 23:09:06,072 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-11-09 23:09:06,072 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-09 23:09:06,072 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-09 23:09:06,072 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-09 23:09:06,072 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-09 23:09:06,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 23:09:06,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 23:09:06,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-09 23:09:06,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-09 23:09:06,073 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-09 23:09:06,073 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-09 23:09:06,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 23:09:06,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 23:09:06,219 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 23:09:06,221 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 23:09:06,512 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2926-1: isVerified_#res#1 := isVerified_~retValue_acc~39#1; [2024-11-09 23:09:06,512 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1085-1: getClientForwardReceiver_#res#1 := getClientForwardReceiver_~retValue_acc~16#1; [2024-11-09 23:09:06,512 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2589-1: getEmailId_#res#1 := getEmailId_~retValue_acc~30#1; [2024-11-09 23:09:06,512 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L650-1: getClientAutoResponse_#res#1 := getClientAutoResponse_~retValue_acc~9#1; [2024-11-09 23:09:06,512 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1132-1: getClientId_#res#1 := getClientId_~retValue_acc~17#1; [2024-11-09 23:09:06,518 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2852: #res := ~retValue_acc~37; [2024-11-09 23:09:06,526 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1473: #res := ~retValue_acc~22; [2024-11-09 23:09:06,559 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L789: #res#1 := ~retValue_acc~12#1; [2024-11-09 23:09:06,559 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L744-1: getClientKeyringSize_#res#1 := getClientKeyringSize_~retValue_acc~11#1; [2024-11-09 23:09:06,582 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1013: #res := ~retValue_acc~15; [2024-11-09 23:09:06,592 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L697: #res := ~retValue_acc~10; [2024-11-09 23:09:06,601 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L3077-1: createEmail_#res#1 := createEmail_~retValue_acc~43#1; [2024-11-09 23:09:06,610 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2778: #res := ~retValue_acc~35; [2024-11-09 23:09:06,619 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2815: #res := ~retValue_acc~36; [2024-11-09 23:09:06,623 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2889: #res := ~retValue_acc~38; [2024-11-09 23:09:06,643 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2663: #res := ~retValue_acc~32; [2024-11-09 23:09:06,852 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1439-1: get_queued_client_#res#1 := get_queued_client_~retValue_acc~20#1; [2024-11-09 23:09:06,853 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1430-1: is_queue_empty_#res#1 := is_queue_empty_~retValue_acc~19#1; [2024-11-09 23:09:06,853 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L852-1: getClientKeyringUser_#res#1 := getClientKeyringUser_~retValue_acc~13#1; [2024-11-09 23:09:06,853 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1448-1: get_queued_email_#res#1 := get_queued_email_~retValue_acc~21#1; [2024-11-09 23:09:06,853 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2177-1: valid_product_#res#1 := valid_product_~retValue_acc~25#1; [2024-11-09 23:09:06,853 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L959-1: getClientKeyringPublicKey_#res#1 := getClientKeyringPublicKey_~retValue_acc~14#1; [2024-11-09 23:09:06,857 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2626: #res := ~retValue_acc~31; [2024-11-09 23:09:06,863 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L3053: #res#1 := ~retValue_acc~41#1; [2024-11-09 23:09:06,863 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L3033-1: isReadable__wrappee__Keys_#res#1 := isReadable__wrappee__Keys_~retValue_acc~40#1; [2024-11-09 23:09:06,957 INFO L? ?]: Removed 508 outVars from TransFormulas that were not future-live. [2024-11-09 23:09:06,957 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 23:09:06,974 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 23:09:06,974 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 23:09:06,974 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 11:09:06 BoogieIcfgContainer [2024-11-09 23:09:06,974 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 23:09:06,976 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 23:09:06,976 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 23:09:06,979 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 23:09:06,979 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 11:09:05" (1/3) ... [2024-11-09 23:09:06,980 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@829d075 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:09:06, skipping insertion in model container [2024-11-09 23:09:06,980 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:09:05" (2/3) ... [2024-11-09 23:09:06,981 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@829d075 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:09:06, skipping insertion in model container [2024-11-09 23:09:06,981 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 11:09:06" (3/3) ... [2024-11-09 23:09:06,983 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec6_product33.cil.c [2024-11-09 23:09:06,994 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 23:09:06,994 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 23:09:07,067 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 23:09:07,078 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;@76763715, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 23:09:07,082 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 23:09:07,087 INFO L276 IsEmpty]: Start isEmpty. Operand has 405 states, 314 states have (on average 1.480891719745223) internal successors, (465), 318 states have internal predecessors, (465), 65 states have call successors, (65), 24 states have call predecessors, (65), 24 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-09 23:09:07,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-09 23:09:07,103 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:09:07,103 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:09:07,104 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:09:07,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:09:07,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1300396238, now seen corresponding path program 1 times [2024-11-09 23:09:07,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:09:07,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419788261] [2024-11-09 23:09:07,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:09:07,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:09:07,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:07,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:09:07,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:07,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:09:07,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:07,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:09:07,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:08,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-09 23:09:08,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:08,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-09 23:09:08,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:08,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-09 23:09:08,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:08,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-09 23:09:08,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:08,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-09 23:09:08,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:08,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-09 23:09:08,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:08,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-09 23:09:08,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:08,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-09 23:09:08,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:08,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-09 23:09:08,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:08,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-09 23:09:08,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:08,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-09 23:09:08,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:08,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-09 23:09:08,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:08,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-09 23:09:08,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:08,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-09 23:09:08,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:08,158 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 23:09:08,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:09:08,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419788261] [2024-11-09 23:09:08,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419788261] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:09:08,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1465565726] [2024-11-09 23:09:08,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:09:08,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:09:08,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:09:08,162 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 23:09:08,166 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 23:09:08,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:08,485 INFO L255 TraceCheckSpWp]: Trace formula consists of 1134 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 23:09:08,494 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:09:08,514 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-09 23:09:08,514 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 23:09:08,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1465565726] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:09:08,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 23:09:08,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2024-11-09 23:09:08,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081864282] [2024-11-09 23:09:08,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:09:08,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 23:09:08,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:09:08,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 23:09:08,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-09 23:09:08,543 INFO L87 Difference]: Start difference. First operand has 405 states, 314 states have (on average 1.480891719745223) internal successors, (465), 318 states have internal predecessors, (465), 65 states have call successors, (65), 24 states have call predecessors, (65), 24 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) Second operand has 2 states, 2 states have (on average 35.0) internal successors, (70), 2 states have internal predecessors, (70), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-09 23:09:08,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:09:08,591 INFO L93 Difference]: Finished difference Result 640 states and 925 transitions. [2024-11-09 23:09:08,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 23:09:08,597 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 35.0) internal successors, (70), 2 states have internal predecessors, (70), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 127 [2024-11-09 23:09:08,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:09:08,608 INFO L225 Difference]: With dead ends: 640 [2024-11-09 23:09:08,608 INFO L226 Difference]: Without dead ends: 397 [2024-11-09 23:09:08,614 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-09 23:09:08,616 INFO L432 NwaCegarLoop]: 590 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:09:08,617 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:09:08,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2024-11-09 23:09:08,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 397. [2024-11-09 23:09:08,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 307 states have (on average 1.47557003257329) internal successors, (453), 310 states have internal predecessors, (453), 65 states have call successors, (65), 24 states have call predecessors, (65), 24 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-09 23:09:08,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 582 transitions. [2024-11-09 23:09:08,674 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 582 transitions. Word has length 127 [2024-11-09 23:09:08,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:09:08,676 INFO L471 AbstractCegarLoop]: Abstraction has 397 states and 582 transitions. [2024-11-09 23:09:08,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 35.0) internal successors, (70), 2 states have internal predecessors, (70), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-09 23:09:08,677 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 582 transitions. [2024-11-09 23:09:08,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-09 23:09:08,680 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:09:08,681 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:09:08,696 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 23:09:08,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-09 23:09:08,882 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:09:08,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:09:08,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1453265780, now seen corresponding path program 1 times [2024-11-09 23:09:08,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:09:08,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613054948] [2024-11-09 23:09:08,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:09:08,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:09:08,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:09,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:09:09,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:09,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:09:09,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:09,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:09:09,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:09,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-09 23:09:09,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:09,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-09 23:09:09,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:09,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-09 23:09:09,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:09,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-09 23:09:09,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:09,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-09 23:09:09,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:09,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-09 23:09:09,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:09,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-09 23:09:09,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:09,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-09 23:09:09,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:09,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-09 23:09:09,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:09,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-09 23:09:09,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:09,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-09 23:09:09,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:09,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-09 23:09:09,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:09,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-09 23:09:09,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:09,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-09 23:09:09,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:09,157 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 23:09:09,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:09:09,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613054948] [2024-11-09 23:09:09,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613054948] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:09:09,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [838083540] [2024-11-09 23:09:09,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:09:09,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:09:09,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:09:09,160 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 23:09:09,163 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 23:09:09,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:09,391 INFO L255 TraceCheckSpWp]: Trace formula consists of 1136 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 23:09:09,394 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:09:09,412 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-09 23:09:09,412 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 23:09:09,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [838083540] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:09:09,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 23:09:09,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-09 23:09:09,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242933618] [2024-11-09 23:09:09,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:09:09,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:09:09,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:09:09,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:09:09,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-09 23:09:09,416 INFO L87 Difference]: Start difference. First operand 397 states and 582 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-09 23:09:09,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:09:09,458 INFO L93 Difference]: Finished difference Result 629 states and 905 transitions. [2024-11-09 23:09:09,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:09:09,458 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 129 [2024-11-09 23:09:09,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:09:09,462 INFO L225 Difference]: With dead ends: 629 [2024-11-09 23:09:09,462 INFO L226 Difference]: Without dead ends: 400 [2024-11-09 23:09:09,464 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-09 23:09:09,465 INFO L432 NwaCegarLoop]: 581 mSDtfsCounter, 0 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1160 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:09:09,465 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1160 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:09:09,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2024-11-09 23:09:09,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 400. [2024-11-09 23:09:09,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 310 states have (on average 1.4709677419354839) internal successors, (456), 313 states have internal predecessors, (456), 65 states have call successors, (65), 24 states have call predecessors, (65), 24 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-09 23:09:09,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 585 transitions. [2024-11-09 23:09:09,500 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 585 transitions. Word has length 129 [2024-11-09 23:09:09,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:09:09,501 INFO L471 AbstractCegarLoop]: Abstraction has 400 states and 585 transitions. [2024-11-09 23:09:09,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-09 23:09:09,501 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 585 transitions. [2024-11-09 23:09:09,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-09 23:09:09,503 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:09:09,503 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:09:09,517 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 23:09:09,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-09 23:09:09,703 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:09:09,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:09:09,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1078699766, now seen corresponding path program 1 times [2024-11-09 23:09:09,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:09:09,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524430228] [2024-11-09 23:09:09,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:09:09,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:09:09,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:09,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:09:09,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:09,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:09:09,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:09,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:09:09,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:09,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-09 23:09:09,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:09,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-09 23:09:09,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:09,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-09 23:09:09,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:09,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-09 23:09:09,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:09,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-09 23:09:09,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:09,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-09 23:09:09,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:09,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-09 23:09:09,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:09,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-09 23:09:09,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:09,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-09 23:09:09,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:09,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-09 23:09:09,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:09,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-09 23:09:09,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:09,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-09 23:09:09,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:09,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-09 23:09:09,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:09,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-09 23:09:09,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:09,940 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-09 23:09:09,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:09:09,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524430228] [2024-11-09 23:09:09,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524430228] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:09:09,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1504691656] [2024-11-09 23:09:09,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:09:09,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:09:09,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:09:09,945 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 23:09:09,946 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 23:09:10,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:10,228 INFO L255 TraceCheckSpWp]: Trace formula consists of 1163 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 23:09:10,231 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:09:10,247 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-09 23:09:10,247 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 23:09:10,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1504691656] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:09:10,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 23:09:10,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-09 23:09:10,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973245620] [2024-11-09 23:09:10,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:09:10,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:09:10,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:09:10,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:09:10,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-09 23:09:10,249 INFO L87 Difference]: Start difference. First operand 400 states and 585 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-09 23:09:10,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:09:10,270 INFO L93 Difference]: Finished difference Result 844 states and 1246 transitions. [2024-11-09 23:09:10,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:09:10,270 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 139 [2024-11-09 23:09:10,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:09:10,273 INFO L225 Difference]: With dead ends: 844 [2024-11-09 23:09:10,273 INFO L226 Difference]: Without dead ends: 472 [2024-11-09 23:09:10,274 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-09 23:09:10,275 INFO L432 NwaCegarLoop]: 591 mSDtfsCounter, 125 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 1126 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:09:10,275 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 1126 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:09:10,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2024-11-09 23:09:10,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 464. [2024-11-09 23:09:10,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 464 states, 363 states have (on average 1.4765840220385675) internal successors, (536), 366 states have internal predecessors, (536), 76 states have call successors, (76), 24 states have call predecessors, (76), 24 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-09 23:09:10,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 687 transitions. [2024-11-09 23:09:10,303 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 687 transitions. Word has length 139 [2024-11-09 23:09:10,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:09:10,303 INFO L471 AbstractCegarLoop]: Abstraction has 464 states and 687 transitions. [2024-11-09 23:09:10,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-09 23:09:10,304 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 687 transitions. [2024-11-09 23:09:10,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-09 23:09:10,307 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:09:10,308 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:09:10,335 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-09 23:09:10,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:09:10,509 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:09:10,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:09:10,510 INFO L85 PathProgramCache]: Analyzing trace with hash 773976081, now seen corresponding path program 1 times [2024-11-09 23:09:10,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:09:10,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600337123] [2024-11-09 23:09:10,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:09:10,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:09:10,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:10,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:09:10,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:10,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:09:10,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:10,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:09:10,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:10,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-09 23:09:10,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:10,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-09 23:09:10,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:10,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-09 23:09:10,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:10,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-09 23:09:10,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:10,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-09 23:09:10,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:10,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-09 23:09:10,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:10,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-09 23:09:10,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:10,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-09 23:09:10,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:10,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-09 23:09:10,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:10,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-09 23:09:10,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:10,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-09 23:09:10,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:10,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-09 23:09:10,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:10,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-09 23:09:10,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:10,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-09 23:09:10,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:10,712 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-09 23:09:10,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:09:10,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600337123] [2024-11-09 23:09:10,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600337123] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:09:10,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2086966535] [2024-11-09 23:09:10,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:09:10,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:09:10,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:09:10,715 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 23:09:10,716 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 23:09:10,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:10,972 INFO L255 TraceCheckSpWp]: Trace formula consists of 1168 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 23:09:10,976 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:09:11,032 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-09 23:09:11,033 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 23:09:11,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2086966535] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:09:11,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 23:09:11,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-11-09 23:09:11,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756429516] [2024-11-09 23:09:11,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:09:11,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:09:11,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:09:11,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:09:11,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-09 23:09:11,035 INFO L87 Difference]: Start difference. First operand 464 states and 687 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, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-09 23:09:11,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:09:11,084 INFO L93 Difference]: Finished difference Result 919 states and 1364 transitions. [2024-11-09 23:09:11,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:09:11,088 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, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 140 [2024-11-09 23:09:11,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:09:11,091 INFO L225 Difference]: With dead ends: 919 [2024-11-09 23:09:11,091 INFO L226 Difference]: Without dead ends: 466 [2024-11-09 23:09:11,093 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-09 23:09:11,093 INFO L432 NwaCegarLoop]: 574 mSDtfsCounter, 2 mSDsluCounter, 1711 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2285 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:09:11,093 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2285 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:09:11,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2024-11-09 23:09:11,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 466. [2024-11-09 23:09:11,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 364 states have (on average 1.4752747252747254) internal successors, (537), 368 states have internal predecessors, (537), 76 states have call successors, (76), 24 states have call predecessors, (76), 25 states have return successors, (77), 75 states have call predecessors, (77), 75 states have call successors, (77) [2024-11-09 23:09:11,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 690 transitions. [2024-11-09 23:09:11,129 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 690 transitions. Word has length 140 [2024-11-09 23:09:11,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:09:11,130 INFO L471 AbstractCegarLoop]: Abstraction has 466 states and 690 transitions. [2024-11-09 23:09:11,130 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, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-09 23:09:11,130 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 690 transitions. [2024-11-09 23:09:11,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-09 23:09:11,132 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:09:11,132 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:09:11,147 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-09 23:09:11,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:09:11,333 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:09:11,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:09:11,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1969660746, now seen corresponding path program 1 times [2024-11-09 23:09:11,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:09:11,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398333086] [2024-11-09 23:09:11,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:09:11,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:09:11,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:11,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:09:11,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:11,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:09:11,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:11,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:09:11,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:11,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:09:11,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:11,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-09 23:09:11,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:11,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-09 23:09:11,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:11,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-09 23:09:11,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:11,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-09 23:09:11,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:11,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-09 23:09:11,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:11,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-09 23:09:11,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:11,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-09 23:09:11,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:11,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-09 23:09:11,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:11,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-09 23:09:11,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:11,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-09 23:09:11,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:11,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-09 23:09:11,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:11,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-09 23:09:11,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:11,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-09 23:09:11,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:11,559 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-09 23:09:11,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:09:11,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398333086] [2024-11-09 23:09:11,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398333086] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:09:11,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1554854042] [2024-11-09 23:09:11,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:09:11,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:09:11,560 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:09:11,563 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 23:09:11,564 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 23:09:11,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:11,819 INFO L255 TraceCheckSpWp]: Trace formula consists of 1169 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 23:09:11,823 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:09:11,871 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-09 23:09:11,871 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 23:09:11,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1554854042] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:09:11,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 23:09:11,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-11-09 23:09:11,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056015988] [2024-11-09 23:09:11,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:09:11,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:09:11,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:09:11,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:09:11,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-09 23:09:11,872 INFO L87 Difference]: Start difference. First operand 466 states and 690 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-09 23:09:11,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:09:11,922 INFO L93 Difference]: Finished difference Result 921 states and 1369 transitions. [2024-11-09 23:09:11,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:09:11,923 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 141 [2024-11-09 23:09:11,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:09:11,925 INFO L225 Difference]: With dead ends: 921 [2024-11-09 23:09:11,925 INFO L226 Difference]: Without dead ends: 468 [2024-11-09 23:09:11,926 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-09 23:09:11,927 INFO L432 NwaCegarLoop]: 572 mSDtfsCounter, 2 mSDsluCounter, 1699 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2271 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:09:11,927 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2271 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:09:11,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2024-11-09 23:09:11,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 468. [2024-11-09 23:09:11,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 365 states have (on average 1.473972602739726) internal successors, (538), 370 states have internal predecessors, (538), 76 states have call successors, (76), 24 states have call predecessors, (76), 26 states have return successors, (82), 75 states have call predecessors, (82), 75 states have call successors, (82) [2024-11-09 23:09:11,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 696 transitions. [2024-11-09 23:09:11,940 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 696 transitions. Word has length 141 [2024-11-09 23:09:11,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:09:11,940 INFO L471 AbstractCegarLoop]: Abstraction has 468 states and 696 transitions. [2024-11-09 23:09:11,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-09 23:09:11,940 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 696 transitions. [2024-11-09 23:09:11,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-09 23:09:11,942 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:09:11,942 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:09:11,960 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-09 23:09:12,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:09:12,143 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:09:12,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:09:12,144 INFO L85 PathProgramCache]: Analyzing trace with hash -450480591, now seen corresponding path program 1 times [2024-11-09 23:09:12,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:09:12,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557704312] [2024-11-09 23:09:12,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:09:12,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:09:12,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:12,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:09:12,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:12,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:09:12,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:12,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:09:12,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:12,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:09:12,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:12,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:09:12,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:12,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-09 23:09:12,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:12,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-09 23:09:12,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:12,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-09 23:09:12,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:12,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-09 23:09:12,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:12,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-09 23:09:12,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:12,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-09 23:09:12,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:12,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-09 23:09:12,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:12,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-09 23:09:12,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:12,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-09 23:09:12,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:12,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-09 23:09:12,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:12,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-09 23:09:12,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:12,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-09 23:09:12,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:12,362 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-09 23:09:12,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:09:12,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557704312] [2024-11-09 23:09:12,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557704312] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:09:12,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:09:12,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 23:09:12,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668583370] [2024-11-09 23:09:12,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:09:12,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 23:09:12,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:09:12,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 23:09:12,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-09 23:09:12,364 INFO L87 Difference]: Start difference. First operand 468 states and 696 transitions. Second operand has 9 states, 8 states have (on average 11.0) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-09 23:09:14,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:09:14,469 INFO L93 Difference]: Finished difference Result 1133 states and 1698 transitions. [2024-11-09 23:09:14,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 23:09:14,470 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.0) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 142 [2024-11-09 23:09:14,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:09:14,473 INFO L225 Difference]: With dead ends: 1133 [2024-11-09 23:09:14,473 INFO L226 Difference]: Without dead ends: 688 [2024-11-09 23:09:14,475 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-09 23:09:14,475 INFO L432 NwaCegarLoop]: 197 mSDtfsCounter, 1286 mSDsluCounter, 1055 mSDsCounter, 0 mSdLazyCounter, 3231 mSolverCounterSat, 438 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1287 SdHoareTripleChecker+Valid, 1252 SdHoareTripleChecker+Invalid, 3669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 438 IncrementalHoareTripleChecker+Valid, 3231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-09 23:09:14,475 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1287 Valid, 1252 Invalid, 3669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [438 Valid, 3231 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-09 23:09:14,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2024-11-09 23:09:14,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 468. [2024-11-09 23:09:14,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 365 states have (on average 1.473972602739726) internal successors, (538), 370 states have internal predecessors, (538), 76 states have call successors, (76), 24 states have call predecessors, (76), 26 states have return successors, (81), 75 states have call predecessors, (81), 75 states have call successors, (81) [2024-11-09 23:09:14,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 695 transitions. [2024-11-09 23:09:14,504 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 695 transitions. Word has length 142 [2024-11-09 23:09:14,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:09:14,505 INFO L471 AbstractCegarLoop]: Abstraction has 468 states and 695 transitions. [2024-11-09 23:09:14,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.0) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-09 23:09:14,505 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 695 transitions. [2024-11-09 23:09:14,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-09 23:09:14,506 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:09:14,507 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 23:09:14,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 23:09:14,507 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:09:14,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:09:14,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1246681544, now seen corresponding path program 2 times [2024-11-09 23:09:14,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:09:14,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725350943] [2024-11-09 23:09:14,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:09:14,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:09:14,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:14,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:09:14,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:14,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:09:14,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:14,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:09:14,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:14,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:09:14,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:14,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:09:14,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:14,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-09 23:09:14,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:14,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-09 23:09:14,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:14,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-09 23:09:14,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:14,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-09 23:09:14,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:14,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-09 23:09:14,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:14,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-09 23:09:14,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:14,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-09 23:09:14,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:14,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-09 23:09:14,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:14,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-09 23:09:14,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:14,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-09 23:09:14,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:14,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-09 23:09:14,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:14,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-09 23:09:14,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:14,665 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-09 23:09:14,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:09:14,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725350943] [2024-11-09 23:09:14,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725350943] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:09:14,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:09:14,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 23:09:14,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392513714] [2024-11-09 23:09:14,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:09:14,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 23:09:14,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:09:14,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 23:09:14,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-09 23:09:14,667 INFO L87 Difference]: Start difference. First operand 468 states and 695 transitions. Second operand has 9 states, 8 states have (on average 11.125) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-09 23:09:17,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:09:17,021 INFO L93 Difference]: Finished difference Result 1135 states and 1701 transitions. [2024-11-09 23:09:17,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 23:09:17,022 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.125) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 143 [2024-11-09 23:09:17,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:09:17,026 INFO L225 Difference]: With dead ends: 1135 [2024-11-09 23:09:17,026 INFO L226 Difference]: Without dead ends: 690 [2024-11-09 23:09:17,027 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-09 23:09:17,031 INFO L432 NwaCegarLoop]: 197 mSDtfsCounter, 1282 mSDsluCounter, 1055 mSDsCounter, 0 mSdLazyCounter, 3239 mSolverCounterSat, 437 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1283 SdHoareTripleChecker+Valid, 1252 SdHoareTripleChecker+Invalid, 3676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 437 IncrementalHoareTripleChecker+Valid, 3239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:09:17,031 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1283 Valid, 1252 Invalid, 3676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [437 Valid, 3239 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-09 23:09:17,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2024-11-09 23:09:17,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 470. [2024-11-09 23:09:17,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 366 states have (on average 1.4726775956284153) internal successors, (539), 372 states have internal predecessors, (539), 76 states have call successors, (76), 24 states have call predecessors, (76), 27 states have return successors, (83), 75 states have call predecessors, (83), 75 states have call successors, (83) [2024-11-09 23:09:17,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 698 transitions. [2024-11-09 23:09:17,056 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 698 transitions. Word has length 143 [2024-11-09 23:09:17,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:09:17,056 INFO L471 AbstractCegarLoop]: Abstraction has 470 states and 698 transitions. [2024-11-09 23:09:17,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.125) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-09 23:09:17,057 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 698 transitions. [2024-11-09 23:09:17,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-09 23:09:17,058 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:09:17,058 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:09:17,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 23:09:17,058 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:09:17,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:09:17,059 INFO L85 PathProgramCache]: Analyzing trace with hash -1923865234, now seen corresponding path program 1 times [2024-11-09 23:09:17,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:09:17,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338229114] [2024-11-09 23:09:17,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:09:17,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:09:17,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:17,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:09:17,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:17,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:09:17,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:17,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:09:17,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:17,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:09:17,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:17,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:09:17,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:17,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:09:17,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:17,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-09 23:09:17,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:17,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-09 23:09:17,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:17,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-09 23:09:17,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:17,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-09 23:09:17,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:17,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-09 23:09:17,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:17,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-09 23:09:17,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:17,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-09 23:09:17,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:17,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-09 23:09:17,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:17,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-09 23:09:17,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:17,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-09 23:09:17,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:17,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-09 23:09:17,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:17,248 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-09 23:09:17,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:09:17,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338229114] [2024-11-09 23:09:17,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338229114] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:09:17,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:09:17,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-09 23:09:17,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646702962] [2024-11-09 23:09:17,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:09:17,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 23:09:17,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:09:17,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 23:09:17,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-09 23:09:17,250 INFO L87 Difference]: Start difference. First operand 470 states and 698 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, (19), 6 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-09 23:09:19,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:09:19,810 INFO L93 Difference]: Finished difference Result 1133 states and 1696 transitions. [2024-11-09 23:09:19,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 23:09:19,810 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, (19), 6 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) Word has length 144 [2024-11-09 23:09:19,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:09:19,813 INFO L225 Difference]: With dead ends: 1133 [2024-11-09 23:09:19,813 INFO L226 Difference]: Without dead ends: 690 [2024-11-09 23:09:19,815 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-11-09 23:09:19,815 INFO L432 NwaCegarLoop]: 195 mSDtfsCounter, 1286 mSDsluCounter, 1538 mSDsCounter, 0 mSdLazyCounter, 5366 mSolverCounterSat, 443 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1287 SdHoareTripleChecker+Valid, 1733 SdHoareTripleChecker+Invalid, 5809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 443 IncrementalHoareTripleChecker+Valid, 5366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-09 23:09:19,815 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1287 Valid, 1733 Invalid, 5809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [443 Valid, 5366 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-09 23:09:19,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2024-11-09 23:09:19,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 470. [2024-11-09 23:09:19,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 366 states have (on average 1.4726775956284153) internal successors, (539), 372 states have internal predecessors, (539), 76 states have call successors, (76), 24 states have call predecessors, (76), 27 states have return successors, (82), 75 states have call predecessors, (82), 75 states have call successors, (82) [2024-11-09 23:09:19,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 697 transitions. [2024-11-09 23:09:19,839 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 697 transitions. Word has length 144 [2024-11-09 23:09:19,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:09:19,839 INFO L471 AbstractCegarLoop]: Abstraction has 470 states and 697 transitions. [2024-11-09 23:09:19,839 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, (19), 6 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-09 23:09:19,839 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 697 transitions. [2024-11-09 23:09:19,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-09 23:09:19,841 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:09:19,841 INFO L215 NwaCegarLoop]: trace histogram [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, 1] [2024-11-09 23:09:19,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 23:09:19,841 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:09:19,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:09:19,841 INFO L85 PathProgramCache]: Analyzing trace with hash 235619687, now seen corresponding path program 2 times [2024-11-09 23:09:19,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:09:19,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872210281] [2024-11-09 23:09:19,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:09:19,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:09:19,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:19,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:09:19,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:19,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:09:19,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:19,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:09:19,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:20,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:09:20,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:20,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:09:20,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:20,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:09:20,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:20,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-09 23:09:20,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:20,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-09 23:09:20,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:20,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-09 23:09:20,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:20,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-09 23:09:20,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:20,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-09 23:09:20,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:20,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-09 23:09:20,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:20,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-09 23:09:20,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:20,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-09 23:09:20,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:20,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-09 23:09:20,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:20,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-09 23:09:20,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:20,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-09 23:09:20,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:20,089 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-09 23:09:20,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:09:20,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872210281] [2024-11-09 23:09:20,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872210281] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:09:20,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:09:20,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-09 23:09:20,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273143854] [2024-11-09 23:09:20,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:09:20,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 23:09:20,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:09:20,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 23:09:20,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-09 23:09:20,092 INFO L87 Difference]: Start difference. First operand 470 states and 697 transitions. Second operand has 12 states, 11 states have (on average 8.545454545454545) internal successors, (94), 8 states have internal predecessors, (94), 4 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-09 23:09:22,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:09:22,731 INFO L93 Difference]: Finished difference Result 1135 states and 1702 transitions. [2024-11-09 23:09:22,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 23:09:22,732 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.545454545454545) internal successors, (94), 8 states have internal predecessors, (94), 4 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) Word has length 145 [2024-11-09 23:09:22,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:09:22,735 INFO L225 Difference]: With dead ends: 1135 [2024-11-09 23:09:22,735 INFO L226 Difference]: Without dead ends: 692 [2024-11-09 23:09:22,736 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-11-09 23:09:22,736 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 1282 mSDsluCounter, 1538 mSDsCounter, 0 mSdLazyCounter, 5410 mSolverCounterSat, 440 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1283 SdHoareTripleChecker+Valid, 1734 SdHoareTripleChecker+Invalid, 5850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 440 IncrementalHoareTripleChecker+Valid, 5410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-09 23:09:22,737 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1283 Valid, 1734 Invalid, 5850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [440 Valid, 5410 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-09 23:09:22,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 692 states. [2024-11-09 23:09:22,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 692 to 472. [2024-11-09 23:09:22,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 367 states have (on average 1.4713896457765667) internal successors, (540), 374 states have internal predecessors, (540), 76 states have call successors, (76), 24 states have call predecessors, (76), 28 states have return successors, (87), 75 states have call predecessors, (87), 75 states have call successors, (87) [2024-11-09 23:09:22,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 703 transitions. [2024-11-09 23:09:22,758 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 703 transitions. Word has length 145 [2024-11-09 23:09:22,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:09:22,759 INFO L471 AbstractCegarLoop]: Abstraction has 472 states and 703 transitions. [2024-11-09 23:09:22,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.545454545454545) internal successors, (94), 8 states have internal predecessors, (94), 4 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-09 23:09:22,759 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 703 transitions. [2024-11-09 23:09:22,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-09 23:09:22,760 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:09:22,760 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:09:22,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 23:09:22,761 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:09:22,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:09:22,761 INFO L85 PathProgramCache]: Analyzing trace with hash -439784789, now seen corresponding path program 1 times [2024-11-09 23:09:22,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:09:22,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850231892] [2024-11-09 23:09:22,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:09:22,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:09:22,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:22,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:09:22,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:22,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:09:22,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:22,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:09:22,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:22,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:09:22,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:22,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:09:22,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:22,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:09:22,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:22,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-09 23:09:22,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:22,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-09 23:09:22,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:22,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-09 23:09:22,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:22,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-09 23:09:22,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:22,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-09 23:09:22,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:22,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-09 23:09:22,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:22,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-09 23:09:22,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:22,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-09 23:09:22,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:22,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-09 23:09:22,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:22,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-09 23:09:22,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:22,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-09 23:09:22,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:22,929 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-09 23:09:22,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:09:22,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850231892] [2024-11-09 23:09:22,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850231892] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:09:22,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1132474439] [2024-11-09 23:09:22,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:09:22,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:09:22,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:09:22,931 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 23:09:22,932 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 23:09:23,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:23,169 INFO L255 TraceCheckSpWp]: Trace formula consists of 1174 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 23:09:23,172 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:09:23,205 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-09 23:09:23,205 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 23:09:23,286 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-09 23:09:23,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1132474439] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 23:09:23,286 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 23:09:23,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2024-11-09 23:09:23,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118756042] [2024-11-09 23:09:23,287 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 23:09:23,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-09 23:09:23,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:09:23,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-09 23:09:23,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-11-09 23:09:23,288 INFO L87 Difference]: Start difference. First operand 472 states and 703 transitions. Second operand has 15 states, 14 states have (on average 11.357142857142858) internal successors, (159), 11 states have internal predecessors, (159), 4 states have call successors, (39), 6 states have call predecessors, (39), 3 states have return successors, (32), 3 states have call predecessors, (32), 4 states have call successors, (32) [2024-11-09 23:09:26,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:09:26,444 INFO L93 Difference]: Finished difference Result 1560 states and 2424 transitions. [2024-11-09 23:09:26,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-09 23:09:26,444 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 11.357142857142858) internal successors, (159), 11 states have internal predecessors, (159), 4 states have call successors, (39), 6 states have call predecessors, (39), 3 states have return successors, (32), 3 states have call predecessors, (32), 4 states have call successors, (32) Word has length 146 [2024-11-09 23:09:26,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:09:26,450 INFO L225 Difference]: With dead ends: 1560 [2024-11-09 23:09:26,450 INFO L226 Difference]: Without dead ends: 1120 [2024-11-09 23:09:26,452 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 351 GetRequests, 321 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=164, Invalid=828, Unknown=0, NotChecked=0, Total=992 [2024-11-09 23:09:26,452 INFO L432 NwaCegarLoop]: 195 mSDtfsCounter, 2422 mSDsluCounter, 1912 mSDsCounter, 0 mSdLazyCounter, 6528 mSolverCounterSat, 777 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2439 SdHoareTripleChecker+Valid, 2107 SdHoareTripleChecker+Invalid, 7305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 777 IncrementalHoareTripleChecker+Valid, 6528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-09 23:09:26,453 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2439 Valid, 2107 Invalid, 7305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [777 Valid, 6528 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-09 23:09:26,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1120 states. [2024-11-09 23:09:26,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1120 to 876. [2024-11-09 23:09:26,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 876 states, 707 states have (on average 1.502121640735502) internal successors, (1062), 714 states have internal predecessors, (1062), 140 states have call successors, (140), 24 states have call predecessors, (140), 28 states have return successors, (161), 139 states have call predecessors, (161), 139 states have call successors, (161) [2024-11-09 23:09:26,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 876 states to 876 states and 1363 transitions. [2024-11-09 23:09:26,487 INFO L78 Accepts]: Start accepts. Automaton has 876 states and 1363 transitions. Word has length 146 [2024-11-09 23:09:26,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:09:26,487 INFO L471 AbstractCegarLoop]: Abstraction has 876 states and 1363 transitions. [2024-11-09 23:09:26,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 11.357142857142858) internal successors, (159), 11 states have internal predecessors, (159), 4 states have call successors, (39), 6 states have call predecessors, (39), 3 states have return successors, (32), 3 states have call predecessors, (32), 4 states have call successors, (32) [2024-11-09 23:09:26,487 INFO L276 IsEmpty]: Start isEmpty. Operand 876 states and 1363 transitions. [2024-11-09 23:09:26,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-09 23:09:26,490 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:09:26,490 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2024-11-09 23:09:26,505 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-09 23:09:26,690 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 [2024-11-09 23:09:26,691 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:09:26,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:09:26,691 INFO L85 PathProgramCache]: Analyzing trace with hash -1704396796, now seen corresponding path program 1 times [2024-11-09 23:09:26,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:09:26,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411040621] [2024-11-09 23:09:26,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:09:26,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:09:26,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:26,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:09:26,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:26,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:09:26,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:26,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:09:26,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:26,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:09:26,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:26,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:09:26,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:26,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:09:26,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:26,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-09 23:09:26,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:26,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-09 23:09:26,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:26,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-09 23:09:26,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:26,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-09 23:09:26,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:26,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-09 23:09:26,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:26,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-09 23:09:26,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:26,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-09 23:09:26,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:26,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-09 23:09:26,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:26,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-09 23:09:26,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:26,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-09 23:09:26,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:26,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-09 23:09:26,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:26,778 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-09 23:09:26,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:09:26,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411040621] [2024-11-09 23:09:26,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411040621] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:09:26,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:09:26,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:09:26,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835773388] [2024-11-09 23:09:26,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:09:26,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:09:26,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:09:26,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:09:26,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:09:26,780 INFO L87 Difference]: Start difference. First operand 876 states and 1363 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, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-09 23:09:28,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:09:28,310 INFO L93 Difference]: Finished difference Result 2277 states and 3605 transitions. [2024-11-09 23:09:28,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 23:09:28,310 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, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 157 [2024-11-09 23:09:28,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:09:28,316 INFO L225 Difference]: With dead ends: 2277 [2024-11-09 23:09:28,316 INFO L226 Difference]: Without dead ends: 1481 [2024-11-09 23:09:28,319 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-09 23:09:28,319 INFO L432 NwaCegarLoop]: 218 mSDtfsCounter, 1402 mSDsluCounter, 751 mSDsCounter, 0 mSdLazyCounter, 1870 mSolverCounterSat, 490 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1417 SdHoareTripleChecker+Valid, 969 SdHoareTripleChecker+Invalid, 2360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 490 IncrementalHoareTripleChecker+Valid, 1870 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 23:09:28,319 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1417 Valid, 969 Invalid, 2360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [490 Valid, 1870 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 23:09:28,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1481 states. [2024-11-09 23:09:28,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1481 to 1253. [2024-11-09 23:09:28,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1253 states, 1020 states have (on average 1.5088235294117647) internal successors, (1539), 1027 states have internal predecessors, (1539), 204 states have call successors, (204), 24 states have call predecessors, (204), 28 states have return successors, (235), 203 states have call predecessors, (235), 203 states have call successors, (235) [2024-11-09 23:09:28,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1253 states to 1253 states and 1978 transitions. [2024-11-09 23:09:28,360 INFO L78 Accepts]: Start accepts. Automaton has 1253 states and 1978 transitions. Word has length 157 [2024-11-09 23:09:28,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:09:28,360 INFO L471 AbstractCegarLoop]: Abstraction has 1253 states and 1978 transitions. [2024-11-09 23:09:28,361 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, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-09 23:09:28,361 INFO L276 IsEmpty]: Start isEmpty. Operand 1253 states and 1978 transitions. [2024-11-09 23:09:28,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-09 23:09:28,364 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:09:28,365 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2024-11-09 23:09:28,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 23:09:28,365 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:09:28,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:09:28,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1987666207, now seen corresponding path program 1 times [2024-11-09 23:09:28,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:09:28,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547927322] [2024-11-09 23:09:28,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:09:28,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:09:28,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:28,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:09:28,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:28,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:09:28,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:28,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:09:28,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:28,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:09:28,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:28,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:09:28,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:28,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:09:28,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:28,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-09 23:09:28,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:28,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-09 23:09:28,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:28,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-09 23:09:28,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:28,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-09 23:09:28,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:28,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-09 23:09:28,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:28,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-09 23:09:28,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:28,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-09 23:09:28,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:28,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-09 23:09:28,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:28,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-09 23:09:28,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:28,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-09 23:09:28,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:28,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-09 23:09:28,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:28,449 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-09 23:09:28,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:09:28,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547927322] [2024-11-09 23:09:28,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547927322] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:09:28,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:09:28,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:09:28,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503373021] [2024-11-09 23:09:28,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:09:28,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:09:28,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:09:28,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:09:28,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:09:28,454 INFO L87 Difference]: Start difference. First operand 1253 states and 1978 transitions. Second operand has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-09 23:09:29,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:09:29,910 INFO L93 Difference]: Finished difference Result 3212 states and 5119 transitions. [2024-11-09 23:09:29,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 23:09:29,911 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 158 [2024-11-09 23:09:29,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:09:29,920 INFO L225 Difference]: With dead ends: 3212 [2024-11-09 23:09:29,920 INFO L226 Difference]: Without dead ends: 2098 [2024-11-09 23:09:29,924 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-09 23:09:29,924 INFO L432 NwaCegarLoop]: 207 mSDtfsCounter, 1399 mSDsluCounter, 739 mSDsCounter, 0 mSdLazyCounter, 1847 mSolverCounterSat, 493 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1414 SdHoareTripleChecker+Valid, 946 SdHoareTripleChecker+Invalid, 2340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 493 IncrementalHoareTripleChecker+Valid, 1847 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 23:09:29,924 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1414 Valid, 946 Invalid, 2340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [493 Valid, 1847 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 23:09:29,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2098 states. [2024-11-09 23:09:29,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2098 to 1870. [2024-11-09 23:09:29,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1870 states, 1542 states have (on average 1.5103761348897535) internal successors, (2329), 1549 states have internal predecessors, (2329), 299 states have call successors, (299), 24 states have call predecessors, (299), 28 states have return successors, (330), 298 states have call predecessors, (330), 298 states have call successors, (330) [2024-11-09 23:09:29,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1870 states to 1870 states and 2958 transitions. [2024-11-09 23:09:29,988 INFO L78 Accepts]: Start accepts. Automaton has 1870 states and 2958 transitions. Word has length 158 [2024-11-09 23:09:29,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:09:29,988 INFO L471 AbstractCegarLoop]: Abstraction has 1870 states and 2958 transitions. [2024-11-09 23:09:29,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-09 23:09:29,988 INFO L276 IsEmpty]: Start isEmpty. Operand 1870 states and 2958 transitions. [2024-11-09 23:09:29,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-09 23:09:29,994 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:09:29,994 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2024-11-09 23:09:29,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 23:09:29,994 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:09:29,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:09:29,995 INFO L85 PathProgramCache]: Analyzing trace with hash -1760898460, now seen corresponding path program 1 times [2024-11-09 23:09:29,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:09:29,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62633721] [2024-11-09 23:09:29,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:09:29,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:09:30,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:30,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:09:30,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:30,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:09:30,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:30,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:09:30,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:30,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:09:30,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:30,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:09:30,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:30,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:09:30,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:30,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-09 23:09:30,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:30,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-09 23:09:30,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:30,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-09 23:09:30,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:30,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-09 23:09:30,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:30,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-09 23:09:30,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:30,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-09 23:09:30,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:30,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-09 23:09:30,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:30,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-09 23:09:30,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:30,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-09 23:09:30,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:30,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-09 23:09:30,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:30,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-09 23:09:30,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:30,097 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-09 23:09:30,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:09:30,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62633721] [2024-11-09 23:09:30,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62633721] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:09:30,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:09:30,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:09:30,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510169738] [2024-11-09 23:09:30,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:09:30,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:09:30,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:09:30,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:09:30,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:09:30,100 INFO L87 Difference]: Start difference. First operand 1870 states and 2958 transitions. Second operand has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-09 23:09:31,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:09:31,586 INFO L93 Difference]: Finished difference Result 4626 states and 7412 transitions. [2024-11-09 23:09:31,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 23:09:31,586 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 159 [2024-11-09 23:09:31,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:09:31,598 INFO L225 Difference]: With dead ends: 4626 [2024-11-09 23:09:31,598 INFO L226 Difference]: Without dead ends: 3044 [2024-11-09 23:09:31,602 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-09 23:09:31,602 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 1396 mSDsluCounter, 717 mSDsCounter, 0 mSdLazyCounter, 1824 mSolverCounterSat, 490 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1411 SdHoareTripleChecker+Valid, 913 SdHoareTripleChecker+Invalid, 2314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 490 IncrementalHoareTripleChecker+Valid, 1824 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 23:09:31,603 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1411 Valid, 913 Invalid, 2314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [490 Valid, 1824 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 23:09:31,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3044 states. [2024-11-09 23:09:31,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3044 to 2816. [2024-11-09 23:09:31,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2816 states, 2365 states have (on average 1.510782241014799) internal successors, (3573), 2372 states have internal predecessors, (3573), 422 states have call successors, (422), 24 states have call predecessors, (422), 28 states have return successors, (469), 421 states have call predecessors, (469), 421 states have call successors, (469) [2024-11-09 23:09:31,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2816 states to 2816 states and 4464 transitions. [2024-11-09 23:09:31,684 INFO L78 Accepts]: Start accepts. Automaton has 2816 states and 4464 transitions. Word has length 159 [2024-11-09 23:09:31,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:09:31,684 INFO L471 AbstractCegarLoop]: Abstraction has 2816 states and 4464 transitions. [2024-11-09 23:09:31,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-09 23:09:31,685 INFO L276 IsEmpty]: Start isEmpty. Operand 2816 states and 4464 transitions. [2024-11-09 23:09:31,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-09 23:09:31,692 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:09:31,693 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2024-11-09 23:09:31,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 23:09:31,693 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:09:31,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:09:31,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1737999455, now seen corresponding path program 1 times [2024-11-09 23:09:31,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:09:31,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133199975] [2024-11-09 23:09:31,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:09:31,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:09:31,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:31,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:09:31,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:31,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:09:31,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:31,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:09:31,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:31,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:09:31,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:31,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:09:31,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:31,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:09:31,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:31,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-09 23:09:31,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:31,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-09 23:09:31,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:31,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-09 23:09:31,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:31,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-09 23:09:31,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:31,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-09 23:09:31,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:31,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-09 23:09:31,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:31,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-09 23:09:31,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:31,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-09 23:09:31,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:31,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-09 23:09:31,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:31,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-09 23:09:31,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:31,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-09 23:09:31,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:31,806 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-09 23:09:31,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:09:31,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133199975] [2024-11-09 23:09:31,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133199975] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:09:31,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:09:31,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:09:31,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945675903] [2024-11-09 23:09:31,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:09:31,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:09:31,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:09:31,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:09:31,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:09:31,808 INFO L87 Difference]: Start difference. First operand 2816 states and 4464 transitions. Second operand has 7 states, 7 states have (on average 15.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-09 23:09:33,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:09:33,273 INFO L93 Difference]: Finished difference Result 6852 states and 11014 transitions. [2024-11-09 23:09:33,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 23:09:33,273 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 160 [2024-11-09 23:09:33,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:09:33,287 INFO L225 Difference]: With dead ends: 6852 [2024-11-09 23:09:33,288 INFO L226 Difference]: Without dead ends: 4569 [2024-11-09 23:09:33,292 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-09 23:09:33,292 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 1393 mSDsluCounter, 717 mSDsCounter, 0 mSdLazyCounter, 1836 mSolverCounterSat, 490 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1408 SdHoareTripleChecker+Valid, 916 SdHoareTripleChecker+Invalid, 2326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 490 IncrementalHoareTripleChecker+Valid, 1836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 23:09:33,292 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1408 Valid, 916 Invalid, 2326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [490 Valid, 1836 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 23:09:33,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4569 states. [2024-11-09 23:09:33,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4569 to 4341. [2024-11-09 23:09:33,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4341 states, 3711 states have (on average 1.5095661546752897) internal successors, (5602), 3718 states have internal predecessors, (5602), 601 states have call successors, (601), 24 states have call predecessors, (601), 28 states have return successors, (674), 600 states have call predecessors, (674), 600 states have call successors, (674) [2024-11-09 23:09:33,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4341 states to 4341 states and 6877 transitions. [2024-11-09 23:09:33,408 INFO L78 Accepts]: Start accepts. Automaton has 4341 states and 6877 transitions. Word has length 160 [2024-11-09 23:09:33,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:09:33,408 INFO L471 AbstractCegarLoop]: Abstraction has 4341 states and 6877 transitions. [2024-11-09 23:09:33,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-09 23:09:33,409 INFO L276 IsEmpty]: Start isEmpty. Operand 4341 states and 6877 transitions. [2024-11-09 23:09:33,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-09 23:09:33,421 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:09:33,421 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1] [2024-11-09 23:09:33,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 23:09:33,421 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:09:33,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:09:33,422 INFO L85 PathProgramCache]: Analyzing trace with hash -916384668, now seen corresponding path program 1 times [2024-11-09 23:09:33,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:09:33,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54325419] [2024-11-09 23:09:33,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:09:33,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:09:33,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:33,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:09:33,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:33,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:09:33,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:33,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:09:33,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:33,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:09:33,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:33,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:09:33,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:33,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:09:33,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:33,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-09 23:09:33,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:33,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-09 23:09:33,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:33,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-09 23:09:33,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:33,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-09 23:09:33,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:33,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-09 23:09:33,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:33,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-09 23:09:33,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:33,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-09 23:09:33,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:33,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-09 23:09:33,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:33,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-09 23:09:33,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:33,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-11-09 23:09:33,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:33,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-11-09 23:09:33,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:33,511 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-09 23:09:33,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:09:33,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54325419] [2024-11-09 23:09:33,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54325419] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:09:33,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:09:33,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:09:33,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243031211] [2024-11-09 23:09:33,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:09:33,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:09:33,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:09:33,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:09:33,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:09:33,514 INFO L87 Difference]: Start difference. First operand 4341 states and 6877 transitions. Second operand has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-09 23:09:35,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:09:35,012 INFO L93 Difference]: Finished difference Result 10550 states and 16973 transitions. [2024-11-09 23:09:35,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 23:09:35,012 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 161 [2024-11-09 23:09:35,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:09:35,039 INFO L225 Difference]: With dead ends: 10550 [2024-11-09 23:09:35,040 INFO L226 Difference]: Without dead ends: 7116 [2024-11-09 23:09:35,048 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-09 23:09:35,048 INFO L432 NwaCegarLoop]: 210 mSDtfsCounter, 1390 mSDsluCounter, 740 mSDsCounter, 0 mSdLazyCounter, 1851 mSolverCounterSat, 498 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1405 SdHoareTripleChecker+Valid, 950 SdHoareTripleChecker+Invalid, 2349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 498 IncrementalHoareTripleChecker+Valid, 1851 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 23:09:35,048 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1405 Valid, 950 Invalid, 2349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [498 Valid, 1851 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 23:09:35,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7116 states. [2024-11-09 23:09:35,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7116 to 6888. [2024-11-09 23:09:35,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6888 states, 5882 states have (on average 1.4984699081944917) internal successors, (8814), 5889 states have internal predecessors, (8814), 977 states have call successors, (977), 24 states have call predecessors, (977), 28 states have return successors, (1094), 976 states have call predecessors, (1094), 976 states have call successors, (1094) [2024-11-09 23:09:35,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6888 states to 6888 states and 10885 transitions. [2024-11-09 23:09:35,305 INFO L78 Accepts]: Start accepts. Automaton has 6888 states and 10885 transitions. Word has length 161 [2024-11-09 23:09:35,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:09:35,305 INFO L471 AbstractCegarLoop]: Abstraction has 6888 states and 10885 transitions. [2024-11-09 23:09:35,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-09 23:09:35,310 INFO L276 IsEmpty]: Start isEmpty. Operand 6888 states and 10885 transitions. [2024-11-09 23:09:35,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-09 23:09:35,333 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:09:35,333 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1] [2024-11-09 23:09:35,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 23:09:35,334 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:09:35,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:09:35,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1533714657, now seen corresponding path program 1 times [2024-11-09 23:09:35,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:09:35,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837393082] [2024-11-09 23:09:35,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:09:35,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:09:35,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:35,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:09:35,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:35,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:09:35,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:35,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:09:35,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:35,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:09:35,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:35,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:09:35,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:35,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:09:35,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:35,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-09 23:09:35,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:35,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-09 23:09:35,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:35,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-09 23:09:35,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:35,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-09 23:09:35,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:35,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-09 23:09:35,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:35,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-09 23:09:35,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:35,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-09 23:09:35,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:35,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-09 23:09:35,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:35,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-09 23:09:35,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:35,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-09 23:09:35,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:35,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-09 23:09:35,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:35,426 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-09 23:09:35,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:09:35,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837393082] [2024-11-09 23:09:35,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837393082] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:09:35,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:09:35,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:09:35,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319700389] [2024-11-09 23:09:35,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:09:35,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:09:35,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:09:35,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:09:35,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:09:35,427 INFO L87 Difference]: Start difference. First operand 6888 states and 10885 transitions. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-09 23:09:36,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:09:36,818 INFO L93 Difference]: Finished difference Result 17253 states and 27672 transitions. [2024-11-09 23:09:36,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 23:09:36,818 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 162 [2024-11-09 23:09:36,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:09:36,852 INFO L225 Difference]: With dead ends: 17253 [2024-11-09 23:09:36,852 INFO L226 Difference]: Without dead ends: 11736 [2024-11-09 23:09:36,866 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-09 23:09:36,867 INFO L432 NwaCegarLoop]: 206 mSDtfsCounter, 1387 mSDsluCounter, 739 mSDsCounter, 0 mSdLazyCounter, 1843 mSolverCounterSat, 494 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1402 SdHoareTripleChecker+Valid, 945 SdHoareTripleChecker+Invalid, 2337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 494 IncrementalHoareTripleChecker+Valid, 1843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:09:36,867 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1402 Valid, 945 Invalid, 2337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [494 Valid, 1843 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 23:09:36,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11736 states. [2024-11-09 23:09:37,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11736 to 11508. [2024-11-09 23:09:37,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11508 states, 9896 states have (on average 1.4930274858528698) internal successors, (14775), 9903 states have internal predecessors, (14775), 1583 states have call successors, (1583), 24 states have call predecessors, (1583), 28 states have return successors, (1778), 1582 states have call predecessors, (1778), 1582 states have call successors, (1778) [2024-11-09 23:09:37,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11508 states to 11508 states and 18136 transitions. [2024-11-09 23:09:37,206 INFO L78 Accepts]: Start accepts. Automaton has 11508 states and 18136 transitions. Word has length 162 [2024-11-09 23:09:37,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:09:37,206 INFO L471 AbstractCegarLoop]: Abstraction has 11508 states and 18136 transitions. [2024-11-09 23:09:37,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-09 23:09:37,206 INFO L276 IsEmpty]: Start isEmpty. Operand 11508 states and 18136 transitions. [2024-11-09 23:09:37,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-09 23:09:37,231 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:09:37,231 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1] [2024-11-09 23:09:37,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 23:09:37,231 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:09:37,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:09:37,232 INFO L85 PathProgramCache]: Analyzing trace with hash 2098731716, now seen corresponding path program 1 times [2024-11-09 23:09:37,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:09:37,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744138248] [2024-11-09 23:09:37,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:09:37,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:09:37,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:37,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:09:37,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:37,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:09:37,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:37,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:09:37,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:37,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:09:37,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:37,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:09:37,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:37,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:09:37,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:37,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-09 23:09:37,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:37,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-09 23:09:37,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:37,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-09 23:09:37,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:37,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-09 23:09:37,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:37,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-09 23:09:37,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:37,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-09 23:09:37,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:37,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-09 23:09:37,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:37,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-09 23:09:37,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:37,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-09 23:09:37,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:37,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-09 23:09:37,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:37,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-09 23:09:37,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:37,320 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-09 23:09:37,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:09:37,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744138248] [2024-11-09 23:09:37,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744138248] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:09:37,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:09:37,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:09:37,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673455716] [2024-11-09 23:09:37,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:09:37,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:09:37,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:09:37,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:09:37,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:09:37,321 INFO L87 Difference]: Start difference. First operand 11508 states and 18136 transitions. Second operand has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-09 23:09:39,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:09:39,150 INFO L93 Difference]: Finished difference Result 30017 states and 48008 transitions. [2024-11-09 23:09:39,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 23:09:39,150 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 163 [2024-11-09 23:09:39,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:09:39,208 INFO L225 Difference]: With dead ends: 30017 [2024-11-09 23:09:39,208 INFO L226 Difference]: Without dead ends: 20448 [2024-11-09 23:09:39,230 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-09 23:09:39,230 INFO L432 NwaCegarLoop]: 219 mSDtfsCounter, 1384 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 1868 mSolverCounterSat, 493 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1399 SdHoareTripleChecker+Valid, 984 SdHoareTripleChecker+Invalid, 2361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 493 IncrementalHoareTripleChecker+Valid, 1868 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 23:09:39,230 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1399 Valid, 984 Invalid, 2361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [493 Valid, 1868 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 23:09:39,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20448 states. [2024-11-09 23:09:39,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20448 to 20220. [2024-11-09 23:09:39,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20220 states, 17405 states have (on average 1.483481758115484) internal successors, (25820), 17412 states have internal predecessors, (25820), 2786 states have call successors, (2786), 24 states have call predecessors, (2786), 28 states have return successors, (3125), 2785 states have call predecessors, (3125), 2785 states have call successors, (3125) [2024-11-09 23:09:39,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20220 states to 20220 states and 31731 transitions. [2024-11-09 23:09:39,925 INFO L78 Accepts]: Start accepts. Automaton has 20220 states and 31731 transitions. Word has length 163 [2024-11-09 23:09:39,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:09:39,926 INFO L471 AbstractCegarLoop]: Abstraction has 20220 states and 31731 transitions. [2024-11-09 23:09:39,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-09 23:09:39,926 INFO L276 IsEmpty]: Start isEmpty. Operand 20220 states and 31731 transitions. [2024-11-09 23:09:39,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-09 23:09:39,984 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:09:39,984 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1] [2024-11-09 23:09:39,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 23:09:39,984 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:09:39,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:09:39,984 INFO L85 PathProgramCache]: Analyzing trace with hash 1761431327, now seen corresponding path program 1 times [2024-11-09 23:09:39,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:09:39,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120995423] [2024-11-09 23:09:39,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:09:39,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:09:40,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:40,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:09:40,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:40,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:09:40,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:40,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:09:40,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:40,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:09:40,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:40,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:09:40,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:40,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:09:40,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:40,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-09 23:09:40,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:40,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-09 23:09:40,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:40,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-09 23:09:40,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:40,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-09 23:09:40,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:40,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-09 23:09:40,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:40,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-09 23:09:40,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:40,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-09 23:09:40,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:40,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-09 23:09:40,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:40,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-09 23:09:40,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:40,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-09 23:09:40,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:40,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-09 23:09:40,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:40,067 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-09 23:09:40,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:09:40,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120995423] [2024-11-09 23:09:40,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120995423] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:09:40,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:09:40,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:09:40,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313222431] [2024-11-09 23:09:40,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:09:40,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:09:40,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:09:40,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:09:40,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:09:40,070 INFO L87 Difference]: Start difference. First operand 20220 states and 31731 transitions. Second operand has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-09 23:09:42,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:09:42,065 INFO L93 Difference]: Finished difference Result 53975 states and 86003 transitions. [2024-11-09 23:09:42,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 23:09:42,065 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 164 [2024-11-09 23:09:42,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:09:42,163 INFO L225 Difference]: With dead ends: 53975 [2024-11-09 23:09:42,163 INFO L226 Difference]: Without dead ends: 36485 [2024-11-09 23:09:42,415 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-09 23:09:42,416 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 1381 mSDsluCounter, 718 mSDsCounter, 0 mSdLazyCounter, 1838 mSolverCounterSat, 498 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1396 SdHoareTripleChecker+Valid, 917 SdHoareTripleChecker+Invalid, 2336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 498 IncrementalHoareTripleChecker+Valid, 1838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 23:09:42,416 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1396 Valid, 917 Invalid, 2336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [498 Valid, 1838 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 23:09:42,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36485 states. [2024-11-09 23:09:43,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36485 to 36257. [2024-11-09 23:09:43,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36257 states, 31403 states have (on average 1.4769289558322454) internal successors, (46380), 31410 states have internal predecessors, (46380), 4825 states have call successors, (4825), 24 states have call predecessors, (4825), 28 states have return successors, (5438), 4824 states have call predecessors, (5438), 4824 states have call successors, (5438) [2024-11-09 23:09:43,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36257 states to 36257 states and 56643 transitions. [2024-11-09 23:09:43,569 INFO L78 Accepts]: Start accepts. Automaton has 36257 states and 56643 transitions. Word has length 164 [2024-11-09 23:09:43,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:09:43,570 INFO L471 AbstractCegarLoop]: Abstraction has 36257 states and 56643 transitions. [2024-11-09 23:09:43,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-09 23:09:43,570 INFO L276 IsEmpty]: Start isEmpty. Operand 36257 states and 56643 transitions. [2024-11-09 23:09:43,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-09 23:09:43,609 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:09:43,610 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1] [2024-11-09 23:09:43,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-09 23:09:43,610 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:09:43,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:09:43,610 INFO L85 PathProgramCache]: Analyzing trace with hash -488046268, now seen corresponding path program 1 times [2024-11-09 23:09:43,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:09:43,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147418862] [2024-11-09 23:09:43,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:09:43,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:09:43,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:43,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:09:43,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:43,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:09:43,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:43,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:09:43,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:43,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:09:43,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:43,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:09:43,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:43,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:09:43,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:43,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-09 23:09:43,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:43,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-09 23:09:43,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:43,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-09 23:09:43,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:43,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-09 23:09:43,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:43,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-09 23:09:43,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:43,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-09 23:09:43,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:43,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-09 23:09:43,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:43,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-09 23:09:43,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:43,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-09 23:09:43,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:43,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-09 23:09:43,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:43,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-09 23:09:43,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:43,743 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-09 23:09:43,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:09:43,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147418862] [2024-11-09 23:09:43,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2147418862] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:09:43,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:09:43,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:09:43,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82837097] [2024-11-09 23:09:43,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:09:43,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:09:43,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:09:43,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:09:43,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:09:43,745 INFO L87 Difference]: Start difference. First operand 36257 states and 56643 transitions. Second operand has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-09 23:09:46,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:09:46,584 INFO L93 Difference]: Finished difference Result 99539 states and 157354 transitions. [2024-11-09 23:09:46,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 23:09:46,585 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 165 [2024-11-09 23:09:46,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:09:46,788 INFO L225 Difference]: With dead ends: 99539 [2024-11-09 23:09:46,788 INFO L226 Difference]: Without dead ends: 66970 [2024-11-09 23:09:46,866 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-09 23:09:46,866 INFO L432 NwaCegarLoop]: 200 mSDtfsCounter, 1378 mSDsluCounter, 726 mSDsCounter, 0 mSdLazyCounter, 1832 mSolverCounterSat, 498 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1393 SdHoareTripleChecker+Valid, 926 SdHoareTripleChecker+Invalid, 2330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 498 IncrementalHoareTripleChecker+Valid, 1832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 23:09:46,867 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1393 Valid, 926 Invalid, 2330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [498 Valid, 1832 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 23:09:46,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66970 states. [2024-11-09 23:09:48,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66970 to 66742. [2024-11-09 23:09:48,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66742 states, 58173 states have (on average 1.4695305382221993) internal successors, (85487), 58180 states have internal predecessors, (85487), 8540 states have call successors, (8540), 24 states have call predecessors, (8540), 28 states have return successors, (9685), 8539 states have call predecessors, (9685), 8539 states have call successors, (9685) [2024-11-09 23:09:48,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66742 states to 66742 states and 103712 transitions. [2024-11-09 23:09:48,951 INFO L78 Accepts]: Start accepts. Automaton has 66742 states and 103712 transitions. Word has length 165 [2024-11-09 23:09:48,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:09:48,952 INFO L471 AbstractCegarLoop]: Abstraction has 66742 states and 103712 transitions. [2024-11-09 23:09:48,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-09 23:09:48,952 INFO L276 IsEmpty]: Start isEmpty. Operand 66742 states and 103712 transitions. [2024-11-09 23:09:49,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-09 23:09:49,003 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:09:49,004 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1] [2024-11-09 23:09:49,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-09 23:09:49,004 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:09:49,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:09:49,004 INFO L85 PathProgramCache]: Analyzing trace with hash -2129769793, now seen corresponding path program 1 times [2024-11-09 23:09:49,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:09:49,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327854176] [2024-11-09 23:09:49,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:09:49,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:09:49,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:49,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:09:49,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:49,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:09:49,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:49,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:09:49,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:49,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:09:49,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:49,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:09:49,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:49,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:09:49,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:49,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-09 23:09:49,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:49,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-09 23:09:49,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:49,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-09 23:09:49,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:49,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-09 23:09:49,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:49,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-09 23:09:49,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:49,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-09 23:09:49,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:49,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-09 23:09:49,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:49,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-09 23:09:49,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:49,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-09 23:09:49,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:49,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-09 23:09:49,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:49,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-11-09 23:09:49,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:49,136 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-09 23:09:49,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:09:49,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327854176] [2024-11-09 23:09:49,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327854176] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:09:49,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:09:49,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:09:49,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116966243] [2024-11-09 23:09:49,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:09:49,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:09:49,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:09:49,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:09:49,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:09:49,139 INFO L87 Difference]: Start difference. First operand 66742 states and 103712 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-09 23:09:52,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:09:52,837 INFO L93 Difference]: Finished difference Result 125688 states and 198433 transitions. [2024-11-09 23:09:52,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 23:09:52,837 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 166 [2024-11-09 23:09:52,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:09:53,227 INFO L225 Difference]: With dead ends: 125688 [2024-11-09 23:09:53,227 INFO L226 Difference]: Without dead ends: 125459 [2024-11-09 23:09:53,274 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-09 23:09:53,275 INFO L432 NwaCegarLoop]: 198 mSDtfsCounter, 1372 mSDsluCounter, 725 mSDsCounter, 0 mSdLazyCounter, 1832 mSolverCounterSat, 492 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1386 SdHoareTripleChecker+Valid, 923 SdHoareTripleChecker+Invalid, 2324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 492 IncrementalHoareTripleChecker+Valid, 1832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 23:09:53,275 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1386 Valid, 923 Invalid, 2324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [492 Valid, 1832 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 23:09:53,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125459 states. [2024-11-09 23:09:56,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125459 to 125231. [2024-11-09 23:09:56,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125231 states, 109863 states have (on average 1.4612107806995986) internal successors, (160533), 109870 states have internal predecessors, (160533), 15339 states have call successors, (15339), 24 states have call predecessors, (15339), 28 states have return successors, (17530), 15338 states have call predecessors, (17530), 15338 states have call successors, (17530) [2024-11-09 23:09:57,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125231 states to 125231 states and 193402 transitions. [2024-11-09 23:09:57,215 INFO L78 Accepts]: Start accepts. Automaton has 125231 states and 193402 transitions. Word has length 166 [2024-11-09 23:09:57,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:09:57,216 INFO L471 AbstractCegarLoop]: Abstraction has 125231 states and 193402 transitions. [2024-11-09 23:09:57,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-09 23:09:57,216 INFO L276 IsEmpty]: Start isEmpty. Operand 125231 states and 193402 transitions. [2024-11-09 23:09:57,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-09 23:09:57,262 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:09:57,262 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:09:57,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-09 23:09:57,262 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:09:57,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:09:57,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1318972476, now seen corresponding path program 1 times [2024-11-09 23:09:57,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:09:57,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736829155] [2024-11-09 23:09:57,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:09:57,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:09:57,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:57,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:09:57,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:57,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:09:57,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:57,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:09:57,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:57,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:09:57,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:57,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:09:57,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:57,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:09:57,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:57,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-09 23:09:57,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:57,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-09 23:09:57,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:58,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-09 23:09:58,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:58,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-09 23:09:58,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:58,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-09 23:09:58,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:58,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-09 23:09:58,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:58,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-09 23:09:58,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:58,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-09 23:09:58,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:58,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-11-09 23:09:58,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:58,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-11-09 23:09:58,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:58,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-11-09 23:09:58,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:58,061 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-09 23:09:58,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:09:58,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736829155] [2024-11-09 23:09:58,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736829155] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:09:58,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [972507037] [2024-11-09 23:09:58,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:09:58,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:09:58,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:09:58,064 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 23:09:58,064 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 23:09:58,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:09:58,357 INFO L255 TraceCheckSpWp]: Trace formula consists of 1220 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 23:09:58,362 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:09:58,567 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 23:09:58,568 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 23:09:58,877 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-09 23:09:58,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [972507037] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 23:09:58,877 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 23:09:58,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 9, 9] total 32 [2024-11-09 23:09:58,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061600721] [2024-11-09 23:09:58,877 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 23:09:58,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-09 23:09:58,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:09:58,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-09 23:09:58,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=914, Unknown=0, NotChecked=0, Total=992 [2024-11-09 23:09:58,879 INFO L87 Difference]: Start difference. First operand 125231 states and 193402 transitions. Second operand has 32 states, 30 states have (on average 9.5) internal successors, (285), 24 states have internal predecessors, (285), 9 states have call successors, (50), 12 states have call predecessors, (50), 12 states have return successors, (44), 11 states have call predecessors, (44), 9 states have call successors, (44)