./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec1_product22.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_spec1_product22.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 42f22b71ca501045e9e0edcb0da831d4df6c9a8e36f5c60b39b69b3cb971731d --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 23:02:22,584 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 23:02:22,673 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 23:02:22,678 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 23:02:22,679 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 23:02:22,702 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 23:02:22,703 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 23:02:22,703 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 23:02:22,704 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 23:02:22,704 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 23:02:22,704 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 23:02:22,705 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 23:02:22,705 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 23:02:22,706 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 23:02:22,706 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 23:02:22,706 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 23:02:22,707 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 23:02:22,707 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 23:02:22,708 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 23:02:22,708 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 23:02:22,708 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 23:02:22,709 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 23:02:22,710 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 23:02:22,710 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 23:02:22,712 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 23:02:22,712 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 23:02:22,713 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 23:02:22,713 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 23:02:22,713 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 23:02:22,714 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 23:02:22,714 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 23:02:22,714 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 23:02:22,714 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 23:02:22,715 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 23:02:22,715 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 23:02:22,719 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 23:02:22,720 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 23:02:22,720 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 23:02:22,720 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 23:02:22,720 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 23:02:22,721 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 23:02:22,722 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 23:02:22,723 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 42f22b71ca501045e9e0edcb0da831d4df6c9a8e36f5c60b39b69b3cb971731d [2024-11-09 23:02:22,981 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 23:02:23,009 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 23:02:23,013 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 23:02:23,014 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 23:02:23,015 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 23:02:23,016 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec1_product22.cil.c [2024-11-09 23:02:24,566 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 23:02:24,864 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 23:02:24,865 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec1_product22.cil.c [2024-11-09 23:02:24,889 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/331f45084/38b1f05a66854519befb2fbbfd671c5d/FLAG2387bc8c6 [2024-11-09 23:02:25,139 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/331f45084/38b1f05a66854519befb2fbbfd671c5d [2024-11-09 23:02:25,142 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 23:02:25,143 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 23:02:25,144 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 23:02:25,144 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 23:02:25,150 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 23:02:25,151 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:02:25" (1/1) ... [2024-11-09 23:02:25,152 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22dfb5e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:02:25, skipping insertion in model container [2024-11-09 23:02:25,152 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:02:25" (1/1) ... [2024-11-09 23:02:25,217 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 23:02:25,731 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_spec1_product22.cil.c[33239,33252] [2024-11-09 23:02:25,832 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 23:02:25,853 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 23:02:25,864 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [48] [2024-11-09 23:02:25,867 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [414] [2024-11-09 23:02:25,867 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [538] [2024-11-09 23:02:25,868 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [767] [2024-11-09 23:02:25,868 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [784] [2024-11-09 23:02:25,868 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1189] [2024-11-09 23:02:25,868 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"AddressBookEncrypt_spec.i","") [1227] [2024-11-09 23:02:25,868 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1257] [2024-11-09 23:02:25,869 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1557] [2024-11-09 23:02:25,869 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1566] [2024-11-09 23:02:25,870 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2637] [2024-11-09 23:02:25,957 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_spec1_product22.cil.c[33239,33252] [2024-11-09 23:02:25,998 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 23:02:26,081 INFO L204 MainTranslator]: Completed translation [2024-11-09 23:02:26,082 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:02:26 WrapperNode [2024-11-09 23:02:26,082 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 23:02:26,083 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 23:02:26,083 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 23:02:26,084 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 23:02:26,093 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:02:26" (1/1) ... [2024-11-09 23:02:26,129 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:02:26" (1/1) ... [2024-11-09 23:02:26,202 INFO L138 Inliner]: procedures = 128, calls = 190, calls flagged for inlining = 59, calls inlined = 54, statements flattened = 1023 [2024-11-09 23:02:26,206 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 23:02:26,207 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 23:02:26,207 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 23:02:26,209 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 23:02:26,221 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:02:26" (1/1) ... [2024-11-09 23:02:26,221 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:02:26" (1/1) ... [2024-11-09 23:02:26,230 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:02:26" (1/1) ... [2024-11-09 23:02:26,273 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 23:02:26,273 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:02:26" (1/1) ... [2024-11-09 23:02:26,274 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:02:26" (1/1) ... [2024-11-09 23:02:26,301 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:02:26" (1/1) ... [2024-11-09 23:02:26,303 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:02:26" (1/1) ... [2024-11-09 23:02:26,311 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:02:26" (1/1) ... [2024-11-09 23:02:26,321 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:02:26" (1/1) ... [2024-11-09 23:02:26,335 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 23:02:26,336 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 23:02:26,336 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 23:02:26,337 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 23:02:26,337 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:02:26" (1/1) ... [2024-11-09 23:02:26,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 23:02:26,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:02:26,367 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 23:02:26,369 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 23:02:26,407 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-11-09 23:02:26,408 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-11-09 23:02:26,408 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-11-09 23:02:26,408 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-11-09 23:02:26,408 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-09 23:02:26,408 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-09 23:02:26,408 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-09 23:02:26,408 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-09 23:02:26,409 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-09 23:02:26,409 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-09 23:02:26,409 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-11-09 23:02:26,409 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-11-09 23:02:26,409 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-09 23:02:26,410 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-09 23:02:26,410 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-09 23:02:26,410 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-09 23:02:26,410 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2024-11-09 23:02:26,410 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2024-11-09 23:02:26,410 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-09 23:02:26,410 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-09 23:02:26,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 23:02:26,410 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-09 23:02:26,411 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-09 23:02:26,411 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-09 23:02:26,411 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-09 23:02:26,411 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-09 23:02:26,411 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-09 23:02:26,411 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-09 23:02:26,411 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-09 23:02:26,411 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-11-09 23:02:26,411 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-11-09 23:02:26,412 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-09 23:02:26,412 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-09 23:02:26,412 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-09 23:02:26,412 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-09 23:02:26,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 23:02:26,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 23:02:26,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-09 23:02:26,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-09 23:02:26,414 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-09 23:02:26,414 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-09 23:02:26,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 23:02:26,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 23:02:26,615 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 23:02:26,617 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 23:02:27,005 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L491-1: isReadable__wrappee__Keys_#res#1 := isReadable__wrappee__Keys_~retValue_acc~3#1; [2024-11-09 23:02:27,005 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2614-1: getClientId_#res#1 := getClientId_~retValue_acc~38#1; [2024-11-09 23:02:27,005 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2567-1: getClientForwardReceiver_#res#1 := getClientForwardReceiver_~retValue_acc~37#1; [2024-11-09 23:02:27,005 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2179-1: getClientPrivateKey_#res#1 := getClientPrivateKey_~retValue_acc~31#1; [2024-11-09 23:02:27,005 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L833-1: getEmailId_#res#1 := getEmailId_~retValue_acc~9#1; [2024-11-09 23:02:27,005 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L511-1: isReadable_#res#1 := isReadable_~retValue_acc~4#1; [2024-11-09 23:02:27,006 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2495-1: findPublicKey_#res#1 := findPublicKey_~retValue_acc~36#1; [2024-11-09 23:02:27,006 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2132-1: getClientAutoResponse_#res#1 := getClientAutoResponse_~retValue_acc~30#1; [2024-11-09 23:02:27,006 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2892-1: isKeyPairValid_#res#1 := isKeyPairValid_~retValue_acc~43#1; [2024-11-09 23:02:27,036 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L907: #res := ~retValue_acc~11; [2024-11-09 23:02:27,073 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2271: #res#1 := ~retValue_acc~33#1; [2024-11-09 23:02:27,073 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2226-1: getClientKeyringSize_#res#1 := getClientKeyringSize_~retValue_acc~32#1; [2024-11-09 23:02:27,114 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L535-1: createEmail_#res#1 := createEmail_~retValue_acc~6#1; [2024-11-09 23:02:27,129 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1022: #res := ~retValue_acc~14; [2024-11-09 23:02:27,442 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2334-1: getClientKeyringUser_#res#1 := getClientKeyringUser_~retValue_acc~34#1; [2024-11-09 23:02:27,442 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2849-1: is_queue_empty_#res#1 := is_queue_empty_~retValue_acc~40#1; [2024-11-09 23:02:27,442 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2867-1: get_queued_email_#res#1 := get_queued_email_~retValue_acc~42#1; [2024-11-09 23:02:27,442 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2441-1: getClientKeyringPublicKey_#res#1 := getClientKeyringPublicKey_~retValue_acc~35#1; [2024-11-09 23:02:27,443 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2858-1: get_queued_client_#res#1 := get_queued_client_~retValue_acc~41#1; [2024-11-09 23:02:27,443 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1224-1: valid_product_#res#1 := valid_product_~retValue_acc~20#1; [2024-11-09 23:02:27,449 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L870: #res := ~retValue_acc~10; [2024-11-09 23:02:27,484 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1059: #res := ~retValue_acc~15; [2024-11-09 23:02:27,604 INFO L? ?]: Removed 439 outVars from TransFormulas that were not future-live. [2024-11-09 23:02:27,604 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 23:02:27,636 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 23:02:27,637 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 23:02:27,637 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 11:02:27 BoogieIcfgContainer [2024-11-09 23:02:27,637 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 23:02:27,640 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 23:02:27,640 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 23:02:27,644 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 23:02:27,645 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 11:02:25" (1/3) ... [2024-11-09 23:02:27,646 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e26994 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:02:27, skipping insertion in model container [2024-11-09 23:02:27,647 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:02:26" (2/3) ... [2024-11-09 23:02:27,648 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e26994 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:02:27, skipping insertion in model container [2024-11-09 23:02:27,649 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 11:02:27" (3/3) ... [2024-11-09 23:02:27,653 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec1_product22.cil.c [2024-11-09 23:02:27,673 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 23:02:27,674 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 23:02:27,761 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 23:02:27,770 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;@656c2fee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 23:02:27,771 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 23:02:27,777 INFO L276 IsEmpty]: Start isEmpty. Operand has 333 states, 263 states have (on average 1.5095057034220531) internal successors, (397), 267 states have internal predecessors, (397), 50 states have call successors, (50), 18 states have call predecessors, (50), 18 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-09 23:02:27,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-09 23:02:27,794 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:02:27,795 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:02:27,796 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:02:27,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:02:27,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1084721763, now seen corresponding path program 1 times [2024-11-09 23:02:27,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:02:27,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119598036] [2024-11-09 23:02:27,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:02:27,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:02:28,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:28,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:02:28,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:28,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:02:28,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:28,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:02:28,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:28,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-09 23:02:28,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:28,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-09 23:02:28,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:28,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-09 23:02:28,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:28,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-09 23:02:28,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:28,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-09 23:02:28,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:28,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-09 23:02:28,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:28,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-09 23:02:28,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:28,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-09 23:02:28,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:28,625 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 23:02:28,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:02:28,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119598036] [2024-11-09 23:02:28,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119598036] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:02:28,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [136152051] [2024-11-09 23:02:28,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:02:28,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:02:28,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:02:28,631 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 23:02:28,633 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 23:02:28,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:28,948 INFO L255 TraceCheckSpWp]: Trace formula consists of 913 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 23:02:28,957 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:02:28,981 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-09 23:02:28,981 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 23:02:28,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [136152051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:02:28,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 23:02:28,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2024-11-09 23:02:28,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226212626] [2024-11-09 23:02:28,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:02:28,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 23:02:28,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:02:29,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 23:02:29,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-09 23:02:29,015 INFO L87 Difference]: Start difference. First operand has 333 states, 263 states have (on average 1.5095057034220531) internal successors, (397), 267 states have internal predecessors, (397), 50 states have call successors, (50), 18 states have call predecessors, (50), 18 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 23:02:29,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:02:29,076 INFO L93 Difference]: Finished difference Result 496 states and 729 transitions. [2024-11-09 23:02:29,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 23:02:29,081 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 90 [2024-11-09 23:02:29,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:02:29,095 INFO L225 Difference]: With dead ends: 496 [2024-11-09 23:02:29,095 INFO L226 Difference]: Without dead ends: 325 [2024-11-09 23:02:29,100 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 108 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 23:02:29,104 INFO L432 NwaCegarLoop]: 492 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, 492 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 23:02:29,105 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:02:29,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2024-11-09 23:02:29,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 325. [2024-11-09 23:02:29,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 256 states have (on average 1.50390625) internal successors, (385), 259 states have internal predecessors, (385), 50 states have call successors, (50), 18 states have call predecessors, (50), 18 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2024-11-09 23:02:29,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 484 transitions. [2024-11-09 23:02:29,171 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 484 transitions. Word has length 90 [2024-11-09 23:02:29,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:02:29,173 INFO L471 AbstractCegarLoop]: Abstraction has 325 states and 484 transitions. [2024-11-09 23:02:29,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 23:02:29,174 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 484 transitions. [2024-11-09 23:02:29,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-09 23:02:29,183 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:02:29,184 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:02:29,199 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 23:02:29,384 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 23:02:29,385 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:02:29,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:02:29,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1966779913, now seen corresponding path program 1 times [2024-11-09 23:02:29,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:02:29,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323037435] [2024-11-09 23:02:29,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:02:29,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:02:29,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:29,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:02:29,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:29,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:02:29,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:29,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:02:29,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:29,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-09 23:02:29,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:29,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-09 23:02:29,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:29,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-09 23:02:29,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:29,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-09 23:02:29,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:29,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-09 23:02:29,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:29,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-09 23:02:29,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:29,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-09 23:02:29,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:29,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-09 23:02:29,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:29,742 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 23:02:29,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:02:29,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323037435] [2024-11-09 23:02:29,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323037435] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:02:29,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1184774142] [2024-11-09 23:02:29,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:02:29,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:02:29,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:02:29,746 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 23:02:29,748 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 23:02:30,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:30,039 INFO L255 TraceCheckSpWp]: Trace formula consists of 915 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 23:02:30,043 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:02:30,067 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-09 23:02:30,067 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 23:02:30,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1184774142] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:02:30,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 23:02:30,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-09 23:02:30,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80201334] [2024-11-09 23:02:30,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:02:30,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:02:30,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:02:30,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:02:30,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-09 23:02:30,070 INFO L87 Difference]: Start difference. First operand 325 states and 484 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 23:02:30,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:02:30,112 INFO L93 Difference]: Finished difference Result 485 states and 709 transitions. [2024-11-09 23:02:30,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:02:30,113 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 92 [2024-11-09 23:02:30,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:02:30,117 INFO L225 Difference]: With dead ends: 485 [2024-11-09 23:02:30,117 INFO L226 Difference]: Without dead ends: 328 [2024-11-09 23:02:30,118 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-09 23:02:30,119 INFO L432 NwaCegarLoop]: 483 mSDtfsCounter, 0 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 964 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 23:02:30,120 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 964 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:02:30,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2024-11-09 23:02:30,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 328. [2024-11-09 23:02:30,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 259 states have (on average 1.498069498069498) internal successors, (388), 262 states have internal predecessors, (388), 50 states have call successors, (50), 18 states have call predecessors, (50), 18 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2024-11-09 23:02:30,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 487 transitions. [2024-11-09 23:02:30,145 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 487 transitions. Word has length 92 [2024-11-09 23:02:30,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:02:30,146 INFO L471 AbstractCegarLoop]: Abstraction has 328 states and 487 transitions. [2024-11-09 23:02:30,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 23:02:30,148 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 487 transitions. [2024-11-09 23:02:30,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-09 23:02:30,154 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:02:30,154 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:02:30,169 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 23:02:30,354 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 23:02:30,355 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:02:30,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:02:30,356 INFO L85 PathProgramCache]: Analyzing trace with hash 1348261985, now seen corresponding path program 1 times [2024-11-09 23:02:30,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:02:30,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68771613] [2024-11-09 23:02:30,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:02:30,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:02:30,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:30,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:02:30,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:30,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:02:30,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:30,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:02:30,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:30,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-09 23:02:30,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:30,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-09 23:02:30,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:30,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-09 23:02:30,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:30,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-09 23:02:30,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:30,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-09 23:02:30,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:30,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-09 23:02:30,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:30,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-09 23:02:30,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:30,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-09 23:02:30,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:30,666 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-09 23:02:30,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:02:30,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68771613] [2024-11-09 23:02:30,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68771613] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:02:30,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [151658518] [2024-11-09 23:02:30,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:02:30,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:02:30,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:02:30,671 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 23:02:30,672 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 23:02:30,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:30,969 INFO L255 TraceCheckSpWp]: Trace formula consists of 942 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 23:02:30,977 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:02:31,006 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-09 23:02:31,007 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 23:02:31,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [151658518] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:02:31,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 23:02:31,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-09 23:02:31,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822620049] [2024-11-09 23:02:31,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:02:31,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:02:31,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:02:31,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:02:31,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-09 23:02:31,012 INFO L87 Difference]: Start difference. First operand 328 states and 487 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 23:02:31,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:02:31,057 INFO L93 Difference]: Finished difference Result 700 states and 1050 transitions. [2024-11-09 23:02:31,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:02:31,059 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 102 [2024-11-09 23:02:31,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:02:31,065 INFO L225 Difference]: With dead ends: 700 [2024-11-09 23:02:31,066 INFO L226 Difference]: Without dead ends: 400 [2024-11-09 23:02:31,067 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-09 23:02:31,070 INFO L432 NwaCegarLoop]: 499 mSDtfsCounter, 125 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 937 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 23:02:31,071 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 937 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:02:31,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2024-11-09 23:02:31,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 392. [2024-11-09 23:02:31,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 312 states have (on average 1.5) internal successors, (468), 315 states have internal predecessors, (468), 61 states have call successors, (61), 18 states have call predecessors, (61), 18 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-09 23:02:31,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 589 transitions. [2024-11-09 23:02:31,125 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 589 transitions. Word has length 102 [2024-11-09 23:02:31,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:02:31,126 INFO L471 AbstractCegarLoop]: Abstraction has 392 states and 589 transitions. [2024-11-09 23:02:31,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 23:02:31,127 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 589 transitions. [2024-11-09 23:02:31,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-09 23:02:31,130 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:02:31,130 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:02:31,149 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 23:02:31,330 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 23:02:31,331 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:02:31,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:02:31,332 INFO L85 PathProgramCache]: Analyzing trace with hash -133937936, now seen corresponding path program 1 times [2024-11-09 23:02:31,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:02:31,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759323317] [2024-11-09 23:02:31,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:02:31,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:02:31,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:31,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:02:31,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:31,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:02:31,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:31,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:02:31,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:31,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-09 23:02:31,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:31,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-09 23:02:31,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:31,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-09 23:02:31,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:31,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-09 23:02:31,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:31,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-09 23:02:31,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:31,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-09 23:02:31,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:31,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-09 23:02:31,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:31,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-09 23:02:31,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:31,578 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-09 23:02:31,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:02:31,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759323317] [2024-11-09 23:02:31,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759323317] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:02:31,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [501658140] [2024-11-09 23:02:31,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:02:31,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:02:31,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:02:31,582 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 23:02:31,584 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 23:02:31,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:31,841 INFO L255 TraceCheckSpWp]: Trace formula consists of 947 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 23:02:31,846 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:02:31,916 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 23:02:31,917 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 23:02:31,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [501658140] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:02:31,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 23:02:31,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-11-09 23:02:31,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161508905] [2024-11-09 23:02:31,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:02:31,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:02:31,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:02:31,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:02:31,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-09 23:02:31,920 INFO L87 Difference]: Start difference. First operand 392 states and 589 transitions. Second operand has 5 states, 4 states have (on average 17.75) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-09 23:02:31,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:02:31,986 INFO L93 Difference]: Finished difference Result 775 states and 1168 transitions. [2024-11-09 23:02:31,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:02:31,987 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.75) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 103 [2024-11-09 23:02:31,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:02:31,992 INFO L225 Difference]: With dead ends: 775 [2024-11-09 23:02:31,992 INFO L226 Difference]: Without dead ends: 394 [2024-11-09 23:02:31,994 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 118 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 23:02:31,997 INFO L432 NwaCegarLoop]: 476 mSDtfsCounter, 2 mSDsluCounter, 1417 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1893 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 23:02:31,998 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1893 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:02:32,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2024-11-09 23:02:32,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 394. [2024-11-09 23:02:32,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 313 states have (on average 1.4984025559105432) internal successors, (469), 317 states have internal predecessors, (469), 61 states have call successors, (61), 18 states have call predecessors, (61), 19 states have return successors, (62), 60 states have call predecessors, (62), 60 states have call successors, (62) [2024-11-09 23:02:32,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 592 transitions. [2024-11-09 23:02:32,045 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 592 transitions. Word has length 103 [2024-11-09 23:02:32,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:02:32,045 INFO L471 AbstractCegarLoop]: Abstraction has 394 states and 592 transitions. [2024-11-09 23:02:32,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.75) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-09 23:02:32,046 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 592 transitions. [2024-11-09 23:02:32,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-09 23:02:32,049 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:02:32,049 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:02:32,070 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 23:02:32,249 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 23:02:32,250 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:02:32,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:02:32,250 INFO L85 PathProgramCache]: Analyzing trace with hash -1797372621, now seen corresponding path program 1 times [2024-11-09 23:02:32,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:02:32,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962298767] [2024-11-09 23:02:32,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:02:32,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:02:32,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:32,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:02:32,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:32,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:02:32,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:32,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:02:32,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:32,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:02:32,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:32,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-09 23:02:32,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:32,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-09 23:02:32,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:32,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-09 23:02:32,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:32,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-09 23:02:32,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:32,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-09 23:02:32,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:32,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-09 23:02:32,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:32,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-09 23:02:32,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:32,556 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-09 23:02:32,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:02:32,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962298767] [2024-11-09 23:02:32,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962298767] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:02:32,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [832737156] [2024-11-09 23:02:32,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:02:32,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:02:32,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:02:32,559 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 23:02:32,562 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 23:02:32,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:32,833 INFO L255 TraceCheckSpWp]: Trace formula consists of 948 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 23:02:32,837 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:02:32,893 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 23:02:32,894 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 23:02:32,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [832737156] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:02:32,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 23:02:32,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-11-09 23:02:32,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062112014] [2024-11-09 23:02:32,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:02:32,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:02:32,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:02:32,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:02:32,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-09 23:02:32,896 INFO L87 Difference]: Start difference. First operand 394 states and 592 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-09 23:02:32,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:02:32,959 INFO L93 Difference]: Finished difference Result 777 states and 1173 transitions. [2024-11-09 23:02:32,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:02:32,959 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 104 [2024-11-09 23:02:32,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:02:32,962 INFO L225 Difference]: With dead ends: 777 [2024-11-09 23:02:32,962 INFO L226 Difference]: Without dead ends: 396 [2024-11-09 23:02:32,964 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 118 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 23:02:32,965 INFO L432 NwaCegarLoop]: 474 mSDtfsCounter, 2 mSDsluCounter, 1405 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1879 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 23:02:32,965 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1879 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:02:32,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2024-11-09 23:02:32,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 396. [2024-11-09 23:02:32,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 314 states have (on average 1.4968152866242037) internal successors, (470), 319 states have internal predecessors, (470), 61 states have call successors, (61), 18 states have call predecessors, (61), 20 states have return successors, (67), 60 states have call predecessors, (67), 60 states have call successors, (67) [2024-11-09 23:02:32,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 598 transitions. [2024-11-09 23:02:32,983 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 598 transitions. Word has length 104 [2024-11-09 23:02:32,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:02:32,983 INFO L471 AbstractCegarLoop]: Abstraction has 396 states and 598 transitions. [2024-11-09 23:02:32,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-09 23:02:32,984 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 598 transitions. [2024-11-09 23:02:32,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-09 23:02:32,986 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:02:32,986 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:02:33,006 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-09 23:02:33,186 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 23:02:33,187 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:02:33,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:02:33,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1775140215, now seen corresponding path program 1 times [2024-11-09 23:02:33,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:02:33,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797511592] [2024-11-09 23:02:33,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:02:33,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:02:33,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:33,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:02:33,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:33,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:02:33,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:33,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:02:33,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:33,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:02:33,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:33,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:02:33,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:33,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-09 23:02:33,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:33,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-09 23:02:33,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:33,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-09 23:02:33,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:33,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-09 23:02:33,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:33,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-09 23:02:33,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:33,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-09 23:02:33,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:33,404 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-09 23:02:33,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:02:33,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797511592] [2024-11-09 23:02:33,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797511592] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:02:33,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:02:33,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 23:02:33,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770294791] [2024-11-09 23:02:33,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:02:33,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 23:02:33,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:02:33,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 23:02:33,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-09 23:02:33,406 INFO L87 Difference]: Start difference. First operand 396 states and 598 transitions. Second operand has 9 states, 8 states have (on average 8.625) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-09 23:02:35,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:02:35,635 INFO L93 Difference]: Finished difference Result 943 states and 1437 transitions. [2024-11-09 23:02:35,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 23:02:35,635 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.625) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 105 [2024-11-09 23:02:35,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:02:35,640 INFO L225 Difference]: With dead ends: 943 [2024-11-09 23:02:35,640 INFO L226 Difference]: Without dead ends: 570 [2024-11-09 23:02:35,642 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-09 23:02:35,643 INFO L432 NwaCegarLoop]: 197 mSDtfsCounter, 1008 mSDsluCounter, 1055 mSDsCounter, 0 mSdLazyCounter, 2534 mSolverCounterSat, 318 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1009 SdHoareTripleChecker+Valid, 1252 SdHoareTripleChecker+Invalid, 2852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 318 IncrementalHoareTripleChecker+Valid, 2534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-09 23:02:35,643 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1009 Valid, 1252 Invalid, 2852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [318 Valid, 2534 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-09 23:02:35,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2024-11-09 23:02:35,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 396. [2024-11-09 23:02:35,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 314 states have (on average 1.4968152866242037) internal successors, (470), 319 states have internal predecessors, (470), 61 states have call successors, (61), 18 states have call predecessors, (61), 20 states have return successors, (66), 60 states have call predecessors, (66), 60 states have call successors, (66) [2024-11-09 23:02:35,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 597 transitions. [2024-11-09 23:02:35,705 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 597 transitions. Word has length 105 [2024-11-09 23:02:35,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:02:35,706 INFO L471 AbstractCegarLoop]: Abstraction has 396 states and 597 transitions. [2024-11-09 23:02:35,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.625) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-09 23:02:35,706 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 597 transitions. [2024-11-09 23:02:35,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-09 23:02:35,709 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:02:35,709 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:02:35,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 23:02:35,709 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:02:35,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:02:35,710 INFO L85 PathProgramCache]: Analyzing trace with hash 2121954734, now seen corresponding path program 2 times [2024-11-09 23:02:35,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:02:35,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439065274] [2024-11-09 23:02:35,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:02:35,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:02:35,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:35,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:02:35,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:35,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:02:35,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:35,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:02:35,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:35,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:02:35,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:35,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:02:35,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:35,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-09 23:02:35,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:35,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-09 23:02:35,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:35,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-09 23:02:35,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:35,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-09 23:02:35,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:35,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-09 23:02:35,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:35,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-09 23:02:35,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:35,890 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-09 23:02:35,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:02:35,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439065274] [2024-11-09 23:02:35,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439065274] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:02:35,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:02:35,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 23:02:35,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411637534] [2024-11-09 23:02:35,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:02:35,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 23:02:35,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:02:35,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 23:02:35,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-09 23:02:35,892 INFO L87 Difference]: Start difference. First operand 396 states and 597 transitions. Second operand has 9 states, 8 states have (on average 8.75) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-09 23:02:37,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:02:38,000 INFO L93 Difference]: Finished difference Result 945 states and 1440 transitions. [2024-11-09 23:02:38,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 23:02:38,000 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.75) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 106 [2024-11-09 23:02:38,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:02:38,006 INFO L225 Difference]: With dead ends: 945 [2024-11-09 23:02:38,006 INFO L226 Difference]: Without dead ends: 572 [2024-11-09 23:02:38,008 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-09 23:02:38,009 INFO L432 NwaCegarLoop]: 197 mSDtfsCounter, 1004 mSDsluCounter, 1055 mSDsCounter, 0 mSdLazyCounter, 2552 mSolverCounterSat, 317 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1005 SdHoareTripleChecker+Valid, 1252 SdHoareTripleChecker+Invalid, 2869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 317 IncrementalHoareTripleChecker+Valid, 2552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-09 23:02:38,009 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1005 Valid, 1252 Invalid, 2869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [317 Valid, 2552 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-09 23:02:38,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2024-11-09 23:02:38,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 398. [2024-11-09 23:02:38,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 315 states have (on average 1.4952380952380953) internal successors, (471), 321 states have internal predecessors, (471), 61 states have call successors, (61), 18 states have call predecessors, (61), 21 states have return successors, (68), 60 states have call predecessors, (68), 60 states have call successors, (68) [2024-11-09 23:02:38,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 600 transitions. [2024-11-09 23:02:38,051 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 600 transitions. Word has length 106 [2024-11-09 23:02:38,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:02:38,053 INFO L471 AbstractCegarLoop]: Abstraction has 398 states and 600 transitions. [2024-11-09 23:02:38,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.75) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-09 23:02:38,054 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 600 transitions. [2024-11-09 23:02:38,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-09 23:02:38,055 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:02:38,056 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:02:38,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 23:02:38,056 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:02:38,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:02:38,056 INFO L85 PathProgramCache]: Analyzing trace with hash 2112237740, now seen corresponding path program 1 times [2024-11-09 23:02:38,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:02:38,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766750593] [2024-11-09 23:02:38,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:02:38,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:02:38,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:38,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:02:38,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:38,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:02:38,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:38,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:02:38,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:38,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:02:38,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:38,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:02:38,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:38,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:02:38,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:38,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-09 23:02:38,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:38,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-09 23:02:38,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:38,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-09 23:02:38,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:38,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-09 23:02:38,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:38,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-09 23:02:38,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:38,289 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-09 23:02:38,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:02:38,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766750593] [2024-11-09 23:02:38,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766750593] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:02:38,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:02:38,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-09 23:02:38,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575586088] [2024-11-09 23:02:38,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:02:38,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 23:02:38,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:02:38,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 23:02:38,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-09 23:02:38,291 INFO L87 Difference]: Start difference. First operand 398 states and 600 transitions. Second operand has 12 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 8 states have internal predecessors, (74), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-09 23:02:41,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:02:41,069 INFO L93 Difference]: Finished difference Result 943 states and 1435 transitions. [2024-11-09 23:02:41,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 23:02:41,070 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 8 states have internal predecessors, (74), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) Word has length 107 [2024-11-09 23:02:41,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:02:41,074 INFO L225 Difference]: With dead ends: 943 [2024-11-09 23:02:41,075 INFO L226 Difference]: Without dead ends: 572 [2024-11-09 23:02:41,076 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-11-09 23:02:41,077 INFO L432 NwaCegarLoop]: 195 mSDtfsCounter, 1008 mSDsluCounter, 1538 mSDsCounter, 0 mSdLazyCounter, 4205 mSolverCounterSat, 323 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1009 SdHoareTripleChecker+Valid, 1733 SdHoareTripleChecker+Invalid, 4528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 323 IncrementalHoareTripleChecker+Valid, 4205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-09 23:02:41,078 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1009 Valid, 1733 Invalid, 4528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [323 Valid, 4205 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-09 23:02:41,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2024-11-09 23:02:41,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 398. [2024-11-09 23:02:41,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 315 states have (on average 1.4952380952380953) internal successors, (471), 321 states have internal predecessors, (471), 61 states have call successors, (61), 18 states have call predecessors, (61), 21 states have return successors, (67), 60 states have call predecessors, (67), 60 states have call successors, (67) [2024-11-09 23:02:41,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 599 transitions. [2024-11-09 23:02:41,114 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 599 transitions. Word has length 107 [2024-11-09 23:02:41,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:02:41,115 INFO L471 AbstractCegarLoop]: Abstraction has 398 states and 599 transitions. [2024-11-09 23:02:41,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 8 states have internal predecessors, (74), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-09 23:02:41,115 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 599 transitions. [2024-11-09 23:02:41,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-09 23:02:41,117 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:02:41,118 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:02:41,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 23:02:41,118 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:02:41,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:02:41,118 INFO L85 PathProgramCache]: Analyzing trace with hash 1946768616, now seen corresponding path program 2 times [2024-11-09 23:02:41,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:02:41,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027962669] [2024-11-09 23:02:41,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:02:41,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:02:41,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:41,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:02:41,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:41,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:02:41,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:41,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:02:41,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:41,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:02:41,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:41,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:02:41,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:41,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:02:41,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:41,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-09 23:02:41,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:41,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-09 23:02:41,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:41,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-09 23:02:41,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:41,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-09 23:02:41,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:41,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-09 23:02:41,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:41,355 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-09 23:02:41,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:02:41,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027962669] [2024-11-09 23:02:41,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027962669] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:02:41,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:02:41,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-09 23:02:41,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550381345] [2024-11-09 23:02:41,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:02:41,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 23:02:41,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:02:41,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 23:02:41,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-09 23:02:41,358 INFO L87 Difference]: Start difference. First operand 398 states and 599 transitions. Second operand has 12 states, 11 states have (on average 6.818181818181818) internal successors, (75), 8 states have internal predecessors, (75), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-09 23:02:43,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:02:43,893 INFO L93 Difference]: Finished difference Result 945 states and 1441 transitions. [2024-11-09 23:02:43,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 23:02:43,894 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.818181818181818) internal successors, (75), 8 states have internal predecessors, (75), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) Word has length 108 [2024-11-09 23:02:43,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:02:43,898 INFO L225 Difference]: With dead ends: 945 [2024-11-09 23:02:43,898 INFO L226 Difference]: Without dead ends: 574 [2024-11-09 23:02:43,900 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-11-09 23:02:43,902 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 1004 mSDsluCounter, 1538 mSDsCounter, 0 mSdLazyCounter, 4240 mSolverCounterSat, 321 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1005 SdHoareTripleChecker+Valid, 1734 SdHoareTripleChecker+Invalid, 4561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 321 IncrementalHoareTripleChecker+Valid, 4240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-09 23:02:43,902 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1005 Valid, 1734 Invalid, 4561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [321 Valid, 4240 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-09 23:02:43,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2024-11-09 23:02:43,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 400. [2024-11-09 23:02:43,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 316 states have (on average 1.4936708860759493) internal successors, (472), 323 states have internal predecessors, (472), 61 states have call successors, (61), 18 states have call predecessors, (61), 22 states have return successors, (72), 60 states have call predecessors, (72), 60 states have call successors, (72) [2024-11-09 23:02:43,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 605 transitions. [2024-11-09 23:02:43,947 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 605 transitions. Word has length 108 [2024-11-09 23:02:43,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:02:43,948 INFO L471 AbstractCegarLoop]: Abstraction has 400 states and 605 transitions. [2024-11-09 23:02:43,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.818181818181818) internal successors, (75), 8 states have internal predecessors, (75), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-09 23:02:43,949 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 605 transitions. [2024-11-09 23:02:43,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-09 23:02:43,950 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:02:43,951 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:02:43,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 23:02:43,951 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:02:43,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:02:43,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1146413073, now seen corresponding path program 1 times [2024-11-09 23:02:43,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:02:43,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266007830] [2024-11-09 23:02:43,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:02:43,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:02:43,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:44,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:02:44,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:44,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:02:44,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:44,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:02:44,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:44,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:02:44,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:44,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:02:44,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:44,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:02:44,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:44,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-09 23:02:44,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:44,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-09 23:02:44,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:44,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-09 23:02:44,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:44,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-09 23:02:44,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:44,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-09 23:02:44,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:44,214 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-09 23:02:44,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:02:44,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266007830] [2024-11-09 23:02:44,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266007830] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:02:44,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1010630089] [2024-11-09 23:02:44,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:02:44,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:02:44,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:02:44,217 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 23:02:44,218 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 23:02:44,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:44,482 INFO L255 TraceCheckSpWp]: Trace formula consists of 953 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 23:02:44,485 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:02:44,523 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 23:02:44,523 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 23:02:44,624 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 23:02:44,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1010630089] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 23:02:44,625 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 23:02:44,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2024-11-09 23:02:44,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713356635] [2024-11-09 23:02:44,625 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 23:02:44,626 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-09 23:02:44,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:02:44,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-09 23:02:44,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-11-09 23:02:44,627 INFO L87 Difference]: Start difference. First operand 400 states and 605 transitions. Second operand has 15 states, 14 states have (on average 9.071428571428571) internal successors, (127), 11 states have internal predecessors, (127), 4 states have call successors, (27), 6 states have call predecessors, (27), 3 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-09 23:02:47,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:02:47,650 INFO L93 Difference]: Finished difference Result 1370 states and 2163 transitions. [2024-11-09 23:02:47,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-09 23:02:47,651 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 9.071428571428571) internal successors, (127), 11 states have internal predecessors, (127), 4 states have call successors, (27), 6 states have call predecessors, (27), 3 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) Word has length 109 [2024-11-09 23:02:47,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:02:47,657 INFO L225 Difference]: With dead ends: 1370 [2024-11-09 23:02:47,657 INFO L226 Difference]: Without dead ends: 1002 [2024-11-09 23:02:47,660 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=164, Invalid=828, Unknown=0, NotChecked=0, Total=992 [2024-11-09 23:02:47,660 INFO L432 NwaCegarLoop]: 198 mSDtfsCounter, 2139 mSDsluCounter, 1931 mSDsCounter, 0 mSdLazyCounter, 5232 mSolverCounterSat, 618 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2156 SdHoareTripleChecker+Valid, 2129 SdHoareTripleChecker+Invalid, 5850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 618 IncrementalHoareTripleChecker+Valid, 5232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-09 23:02:47,661 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2156 Valid, 2129 Invalid, 5850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [618 Valid, 5232 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-09 23:02:47,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1002 states. [2024-11-09 23:02:47,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1002 to 804. [2024-11-09 23:02:47,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 804 states, 656 states have (on average 1.5152439024390243) internal successors, (994), 663 states have internal predecessors, (994), 125 states have call successors, (125), 18 states have call predecessors, (125), 22 states have return successors, (146), 124 states have call predecessors, (146), 124 states have call successors, (146) [2024-11-09 23:02:47,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 804 states to 804 states and 1265 transitions. [2024-11-09 23:02:47,710 INFO L78 Accepts]: Start accepts. Automaton has 804 states and 1265 transitions. Word has length 109 [2024-11-09 23:02:47,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:02:47,711 INFO L471 AbstractCegarLoop]: Abstraction has 804 states and 1265 transitions. [2024-11-09 23:02:47,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 9.071428571428571) internal successors, (127), 11 states have internal predecessors, (127), 4 states have call successors, (27), 6 states have call predecessors, (27), 3 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-09 23:02:47,711 INFO L276 IsEmpty]: Start isEmpty. Operand 804 states and 1265 transitions. [2024-11-09 23:02:47,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-09 23:02:47,715 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:02:47,716 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:02:47,732 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 23:02:47,916 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 23:02:47,917 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:02:47,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:02:47,917 INFO L85 PathProgramCache]: Analyzing trace with hash 12688942, now seen corresponding path program 1 times [2024-11-09 23:02:47,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:02:47,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355207620] [2024-11-09 23:02:47,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:02:47,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:02:47,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:47,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:02:47,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:47,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:02:47,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:47,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:02:47,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:47,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:02:47,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:48,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:02:48,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:48,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:02:48,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:48,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-09 23:02:48,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:48,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-09 23:02:48,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:48,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-09 23:02:48,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:48,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-09 23:02:48,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:48,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-09 23:02:48,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:48,034 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 23:02:48,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:02:48,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355207620] [2024-11-09 23:02:48,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355207620] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:02:48,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:02:48,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:02:48,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319870773] [2024-11-09 23:02:48,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:02:48,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:02:48,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:02:48,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:02:48,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:02:48,036 INFO L87 Difference]: Start difference. First operand 804 states and 1265 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 23:02:49,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:02:49,498 INFO L93 Difference]: Finished difference Result 2087 states and 3344 transitions. [2024-11-09 23:02:49,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 23:02:49,498 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 120 [2024-11-09 23:02:49,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:02:49,506 INFO L225 Difference]: With dead ends: 2087 [2024-11-09 23:02:49,506 INFO L226 Difference]: Without dead ends: 1363 [2024-11-09 23:02:49,510 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-09 23:02:49,511 INFO L432 NwaCegarLoop]: 211 mSDtfsCounter, 1124 mSDsluCounter, 738 mSDsCounter, 0 mSdLazyCounter, 1481 mSolverCounterSat, 374 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1139 SdHoareTripleChecker+Valid, 949 SdHoareTripleChecker+Invalid, 1855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 374 IncrementalHoareTripleChecker+Valid, 1481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 23:02:49,511 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1139 Valid, 949 Invalid, 1855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [374 Valid, 1481 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 23:02:49,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1363 states. [2024-11-09 23:02:49,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1363 to 1181. [2024-11-09 23:02:49,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1181 states, 969 states have (on average 1.5180598555211557) internal successors, (1471), 976 states have internal predecessors, (1471), 189 states have call successors, (189), 18 states have call predecessors, (189), 22 states have return successors, (220), 188 states have call predecessors, (220), 188 states have call successors, (220) [2024-11-09 23:02:49,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1181 states to 1181 states and 1880 transitions. [2024-11-09 23:02:49,574 INFO L78 Accepts]: Start accepts. Automaton has 1181 states and 1880 transitions. Word has length 120 [2024-11-09 23:02:49,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:02:49,574 INFO L471 AbstractCegarLoop]: Abstraction has 1181 states and 1880 transitions. [2024-11-09 23:02:49,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 23:02:49,575 INFO L276 IsEmpty]: Start isEmpty. Operand 1181 states and 1880 transitions. [2024-11-09 23:02:49,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-09 23:02:49,580 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:02:49,580 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:02:49,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 23:02:49,580 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:02:49,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:02:49,581 INFO L85 PathProgramCache]: Analyzing trace with hash 589138683, now seen corresponding path program 1 times [2024-11-09 23:02:49,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:02:49,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756266239] [2024-11-09 23:02:49,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:02:49,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:02:49,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:49,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:02:49,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:49,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:02:49,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:49,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:02:49,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:49,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:02:49,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:49,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:02:49,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:49,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:02:49,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:49,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-09 23:02:49,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:49,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-09 23:02:49,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:49,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-09 23:02:49,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:49,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-09 23:02:49,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:49,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-09 23:02:49,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:49,718 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 23:02:49,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:02:49,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756266239] [2024-11-09 23:02:49,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756266239] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:02:49,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:02:49,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:02:49,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459800196] [2024-11-09 23:02:49,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:02:49,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:02:49,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:02:49,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:02:49,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:02:49,720 INFO L87 Difference]: Start difference. First operand 1181 states and 1880 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 23:02:51,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:02:51,142 INFO L93 Difference]: Finished difference Result 3022 states and 4858 transitions. [2024-11-09 23:02:51,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 23:02:51,143 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 121 [2024-11-09 23:02:51,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:02:51,155 INFO L225 Difference]: With dead ends: 3022 [2024-11-09 23:02:51,155 INFO L226 Difference]: Without dead ends: 1980 [2024-11-09 23:02:51,160 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-09 23:02:51,161 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 1121 mSDsluCounter, 718 mSDsCounter, 0 mSdLazyCounter, 1453 mSolverCounterSat, 377 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1136 SdHoareTripleChecker+Valid, 914 SdHoareTripleChecker+Invalid, 1830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 377 IncrementalHoareTripleChecker+Valid, 1453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 23:02:51,161 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1136 Valid, 914 Invalid, 1830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [377 Valid, 1453 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 23:02:51,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1980 states. [2024-11-09 23:02:51,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1980 to 1798. [2024-11-09 23:02:51,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1798 states, 1491 states have (on average 1.516431924882629) internal successors, (2261), 1498 states have internal predecessors, (2261), 284 states have call successors, (284), 18 states have call predecessors, (284), 22 states have return successors, (315), 283 states have call predecessors, (315), 283 states have call successors, (315) [2024-11-09 23:02:51,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1798 states to 1798 states and 2860 transitions. [2024-11-09 23:02:51,281 INFO L78 Accepts]: Start accepts. Automaton has 1798 states and 2860 transitions. Word has length 121 [2024-11-09 23:02:51,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:02:51,281 INFO L471 AbstractCegarLoop]: Abstraction has 1798 states and 2860 transitions. [2024-11-09 23:02:51,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 23:02:51,282 INFO L276 IsEmpty]: Start isEmpty. Operand 1798 states and 2860 transitions. [2024-11-09 23:02:51,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-09 23:02:51,289 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:02:51,289 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:02:51,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 23:02:51,290 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:02:51,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:02:51,290 INFO L85 PathProgramCache]: Analyzing trace with hash -1120395058, now seen corresponding path program 1 times [2024-11-09 23:02:51,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:02:51,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544194109] [2024-11-09 23:02:51,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:02:51,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:02:51,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:51,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:02:51,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:51,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:02:51,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:51,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:02:51,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:51,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:02:51,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:51,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:02:51,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:51,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:02:51,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:51,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-09 23:02:51,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:51,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-09 23:02:51,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:51,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-09 23:02:51,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:51,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-09 23:02:51,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:51,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-09 23:02:51,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:51,410 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 23:02:51,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:02:51,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544194109] [2024-11-09 23:02:51,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544194109] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:02:51,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:02:51,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:02:51,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374108109] [2024-11-09 23:02:51,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:02:51,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:02:51,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:02:51,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:02:51,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:02:51,413 INFO L87 Difference]: Start difference. First operand 1798 states and 2860 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 23:02:52,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:02:52,719 INFO L93 Difference]: Finished difference Result 4436 states and 7151 transitions. [2024-11-09 23:02:52,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 23:02:52,720 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 122 [2024-11-09 23:02:52,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:02:52,736 INFO L225 Difference]: With dead ends: 4436 [2024-11-09 23:02:52,736 INFO L226 Difference]: Without dead ends: 2926 [2024-11-09 23:02:52,742 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-09 23:02:52,743 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 1118 mSDsluCounter, 717 mSDsCounter, 0 mSdLazyCounter, 1464 mSolverCounterSat, 369 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1133 SdHoareTripleChecker+Valid, 916 SdHoareTripleChecker+Invalid, 1833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 369 IncrementalHoareTripleChecker+Valid, 1464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:02:52,743 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1133 Valid, 916 Invalid, 1833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [369 Valid, 1464 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 23:02:52,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2926 states. [2024-11-09 23:02:52,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2926 to 2744. [2024-11-09 23:02:52,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2744 states, 2314 states have (on average 1.5146931719965429) internal successors, (3505), 2321 states have internal predecessors, (3505), 407 states have call successors, (407), 18 states have call predecessors, (407), 22 states have return successors, (454), 406 states have call predecessors, (454), 406 states have call successors, (454) [2024-11-09 23:02:52,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2744 states to 2744 states and 4366 transitions. [2024-11-09 23:02:52,872 INFO L78 Accepts]: Start accepts. Automaton has 2744 states and 4366 transitions. Word has length 122 [2024-11-09 23:02:52,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:02:52,872 INFO L471 AbstractCegarLoop]: Abstraction has 2744 states and 4366 transitions. [2024-11-09 23:02:52,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 23:02:52,873 INFO L276 IsEmpty]: Start isEmpty. Operand 2744 states and 4366 transitions. [2024-11-09 23:02:52,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-09 23:02:52,881 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:02:52,881 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:02:52,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 23:02:52,882 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:02:52,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:02:52,882 INFO L85 PathProgramCache]: Analyzing trace with hash 294348475, now seen corresponding path program 1 times [2024-11-09 23:02:52,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:02:52,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557230996] [2024-11-09 23:02:52,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:02:52,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:02:52,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:52,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:02:52,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:52,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:02:52,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:52,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:02:52,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:52,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:02:52,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:52,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:02:52,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:52,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:02:52,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:52,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-09 23:02:52,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:52,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-09 23:02:53,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:53,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-09 23:02:53,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:53,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-09 23:02:53,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:53,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-09 23:02:53,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:53,019 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 23:02:53,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:02:53,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557230996] [2024-11-09 23:02:53,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557230996] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:02:53,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:02:53,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:02:53,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980528110] [2024-11-09 23:02:53,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:02:53,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:02:53,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:02:53,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:02:53,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:02:53,022 INFO L87 Difference]: Start difference. First operand 2744 states and 4366 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 23:02:54,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:02:54,373 INFO L93 Difference]: Finished difference Result 6662 states and 10753 transitions. [2024-11-09 23:02:54,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 23:02:54,373 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 123 [2024-11-09 23:02:54,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:02:54,394 INFO L225 Difference]: With dead ends: 6662 [2024-11-09 23:02:54,394 INFO L226 Difference]: Without dead ends: 4451 [2024-11-09 23:02:54,401 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-09 23:02:54,401 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 1115 mSDsluCounter, 717 mSDsCounter, 0 mSdLazyCounter, 1464 mSolverCounterSat, 369 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1130 SdHoareTripleChecker+Valid, 916 SdHoareTripleChecker+Invalid, 1833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 369 IncrementalHoareTripleChecker+Valid, 1464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:02:54,402 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1130 Valid, 916 Invalid, 1833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [369 Valid, 1464 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 23:02:54,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4451 states. [2024-11-09 23:02:54,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4451 to 4269. [2024-11-09 23:02:54,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4269 states, 3660 states have (on average 1.5120218579234972) internal successors, (5534), 3667 states have internal predecessors, (5534), 586 states have call successors, (586), 18 states have call predecessors, (586), 22 states have return successors, (659), 585 states have call predecessors, (659), 585 states have call successors, (659) [2024-11-09 23:02:54,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4269 states to 4269 states and 6779 transitions. [2024-11-09 23:02:54,578 INFO L78 Accepts]: Start accepts. Automaton has 4269 states and 6779 transitions. Word has length 123 [2024-11-09 23:02:54,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:02:54,578 INFO L471 AbstractCegarLoop]: Abstraction has 4269 states and 6779 transitions. [2024-11-09 23:02:54,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 23:02:54,579 INFO L276 IsEmpty]: Start isEmpty. Operand 4269 states and 6779 transitions. [2024-11-09 23:02:54,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-09 23:02:54,588 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:02:54,588 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:02:54,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 23:02:54,589 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:02:54,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:02:54,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1877526578, now seen corresponding path program 1 times [2024-11-09 23:02:54,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:02:54,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200961618] [2024-11-09 23:02:54,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:02:54,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:02:54,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:54,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:02:54,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:54,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:02:54,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:54,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:02:54,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:54,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:02:54,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:54,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:02:54,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:54,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:02:54,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:54,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-09 23:02:54,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:54,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-09 23:02:54,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:54,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-09 23:02:54,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:54,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-09 23:02:54,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:54,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-09 23:02:54,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:54,691 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 23:02:54,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:02:54,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200961618] [2024-11-09 23:02:54,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200961618] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:02:54,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:02:54,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:02:54,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406906295] [2024-11-09 23:02:54,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:02:54,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:02:54,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:02:54,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:02:54,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:02:54,693 INFO L87 Difference]: Start difference. First operand 4269 states and 6779 transitions. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 23:02:56,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:02:56,204 INFO L93 Difference]: Finished difference Result 10360 states and 16712 transitions. [2024-11-09 23:02:56,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 23:02:56,205 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 124 [2024-11-09 23:02:56,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:02:56,243 INFO L225 Difference]: With dead ends: 10360 [2024-11-09 23:02:56,243 INFO L226 Difference]: Without dead ends: 6998 [2024-11-09 23:02:56,259 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-09 23:02:56,260 INFO L432 NwaCegarLoop]: 207 mSDtfsCounter, 1112 mSDsluCounter, 729 mSDsCounter, 0 mSdLazyCounter, 1477 mSolverCounterSat, 373 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1127 SdHoareTripleChecker+Valid, 936 SdHoareTripleChecker+Invalid, 1850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 373 IncrementalHoareTripleChecker+Valid, 1477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 23:02:56,260 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1127 Valid, 936 Invalid, 1850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [373 Valid, 1477 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 23:02:56,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6998 states. [2024-11-09 23:02:56,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6998 to 6816. [2024-11-09 23:02:56,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6816 states, 5831 states have (on average 1.4999142514148516) internal successors, (8746), 5838 states have internal predecessors, (8746), 962 states have call successors, (962), 18 states have call predecessors, (962), 22 states have return successors, (1079), 961 states have call predecessors, (1079), 961 states have call successors, (1079) [2024-11-09 23:02:56,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6816 states to 6816 states and 10787 transitions. [2024-11-09 23:02:56,600 INFO L78 Accepts]: Start accepts. Automaton has 6816 states and 10787 transitions. Word has length 124 [2024-11-09 23:02:56,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:02:56,601 INFO L471 AbstractCegarLoop]: Abstraction has 6816 states and 10787 transitions. [2024-11-09 23:02:56,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 23:02:56,601 INFO L276 IsEmpty]: Start isEmpty. Operand 6816 states and 10787 transitions. [2024-11-09 23:02:56,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-09 23:02:56,616 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:02:56,616 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:02:56,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 23:02:56,616 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:02:56,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:02:56,617 INFO L85 PathProgramCache]: Analyzing trace with hash 224500475, now seen corresponding path program 1 times [2024-11-09 23:02:56,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:02:56,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931630304] [2024-11-09 23:02:56,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:02:56,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:02:56,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:56,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:02:56,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:56,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:02:56,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:56,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:02:56,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:56,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:02:56,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:56,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:02:56,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:56,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:02:56,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:56,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-09 23:02:56,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:56,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-09 23:02:56,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:56,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-09 23:02:56,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:56,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-09 23:02:56,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:56,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-09 23:02:56,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:56,714 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 23:02:56,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:02:56,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931630304] [2024-11-09 23:02:56,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931630304] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:02:56,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:02:56,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:02:56,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578983644] [2024-11-09 23:02:56,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:02:56,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:02:56,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:02:56,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:02:56,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:02:56,716 INFO L87 Difference]: Start difference. First operand 6816 states and 10787 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 23:02:58,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:02:58,306 INFO L93 Difference]: Finished difference Result 17063 states and 27411 transitions. [2024-11-09 23:02:58,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 23:02:58,310 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 125 [2024-11-09 23:02:58,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:02:58,369 INFO L225 Difference]: With dead ends: 17063 [2024-11-09 23:02:58,369 INFO L226 Difference]: Without dead ends: 11618 [2024-11-09 23:02:58,391 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-09 23:02:58,392 INFO L432 NwaCegarLoop]: 202 mSDtfsCounter, 1109 mSDsluCounter, 722 mSDsCounter, 0 mSdLazyCounter, 1477 mSolverCounterSat, 377 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1124 SdHoareTripleChecker+Valid, 924 SdHoareTripleChecker+Invalid, 1854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 377 IncrementalHoareTripleChecker+Valid, 1477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 23:02:58,392 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1124 Valid, 924 Invalid, 1854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [377 Valid, 1477 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 23:02:58,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11618 states. [2024-11-09 23:02:58,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11618 to 11436. [2024-11-09 23:02:58,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11436 states, 9845 states have (on average 1.493854748603352) internal successors, (14707), 9852 states have internal predecessors, (14707), 1568 states have call successors, (1568), 18 states have call predecessors, (1568), 22 states have return successors, (1763), 1567 states have call predecessors, (1763), 1567 states have call successors, (1763) [2024-11-09 23:02:58,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11436 states to 11436 states and 18038 transitions. [2024-11-09 23:02:58,969 INFO L78 Accepts]: Start accepts. Automaton has 11436 states and 18038 transitions. Word has length 125 [2024-11-09 23:02:58,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:02:58,970 INFO L471 AbstractCegarLoop]: Abstraction has 11436 states and 18038 transitions. [2024-11-09 23:02:58,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 23:02:58,971 INFO L276 IsEmpty]: Start isEmpty. Operand 11436 states and 18038 transitions. [2024-11-09 23:02:58,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-09 23:02:58,988 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:02:58,988 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:02:58,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 23:02:58,989 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:02:58,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:02:58,989 INFO L85 PathProgramCache]: Analyzing trace with hash -601321874, now seen corresponding path program 1 times [2024-11-09 23:02:58,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:02:58,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694056900] [2024-11-09 23:02:58,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:02:58,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:02:59,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:59,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:02:59,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:59,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:02:59,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:59,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:02:59,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:59,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:02:59,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:59,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:02:59,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:59,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:02:59,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:59,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-09 23:02:59,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:59,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-09 23:02:59,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:59,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-09 23:02:59,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:59,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-09 23:02:59,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:59,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-09 23:02:59,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:02:59,130 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 23:02:59,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:02:59,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694056900] [2024-11-09 23:02:59,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694056900] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:02:59,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:02:59,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:02:59,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85993783] [2024-11-09 23:02:59,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:02:59,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:02:59,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:02:59,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:02:59,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:02:59,134 INFO L87 Difference]: Start difference. First operand 11436 states and 18038 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 23:03:00,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:03:00,847 INFO L93 Difference]: Finished difference Result 29827 states and 47747 transitions. [2024-11-09 23:03:00,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 23:03:00,848 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 126 [2024-11-09 23:03:00,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:03:00,933 INFO L225 Difference]: With dead ends: 29827 [2024-11-09 23:03:00,933 INFO L226 Difference]: Without dead ends: 20330 [2024-11-09 23:03:01,054 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-09 23:03:01,055 INFO L432 NwaCegarLoop]: 213 mSDtfsCounter, 1106 mSDsluCounter, 753 mSDsCounter, 0 mSdLazyCounter, 1485 mSolverCounterSat, 373 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1121 SdHoareTripleChecker+Valid, 966 SdHoareTripleChecker+Invalid, 1858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 373 IncrementalHoareTripleChecker+Valid, 1485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 23:03:01,056 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1121 Valid, 966 Invalid, 1858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [373 Valid, 1485 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 23:03:01,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20330 states. [2024-11-09 23:03:01,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20330 to 20148. [2024-11-09 23:03:01,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20148 states, 17354 states have (on average 1.4839230148668894) internal successors, (25752), 17361 states have internal predecessors, (25752), 2771 states have call successors, (2771), 18 states have call predecessors, (2771), 22 states have return successors, (3110), 2770 states have call predecessors, (3110), 2770 states have call successors, (3110) [2024-11-09 23:03:01,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20148 states to 20148 states and 31633 transitions. [2024-11-09 23:03:01,780 INFO L78 Accepts]: Start accepts. Automaton has 20148 states and 31633 transitions. Word has length 126 [2024-11-09 23:03:01,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:03:01,781 INFO L471 AbstractCegarLoop]: Abstraction has 20148 states and 31633 transitions. [2024-11-09 23:03:01,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 23:03:01,782 INFO L276 IsEmpty]: Start isEmpty. Operand 20148 states and 31633 transitions. [2024-11-09 23:03:01,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-09 23:03:01,800 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:03:01,800 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:03:01,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 23:03:01,800 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:03:01,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:03:01,801 INFO L85 PathProgramCache]: Analyzing trace with hash 347238907, now seen corresponding path program 1 times [2024-11-09 23:03:01,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:03:01,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494853371] [2024-11-09 23:03:01,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:03:01,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:03:01,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:01,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:03:01,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:01,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:03:01,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:01,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:03:01,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:01,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:03:01,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:01,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:03:01,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:01,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:03:01,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:01,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-09 23:03:01,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:01,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-09 23:03:01,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:01,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-09 23:03:01,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:01,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-09 23:03:01,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:01,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-09 23:03:01,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:01,900 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 23:03:01,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:03:01,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494853371] [2024-11-09 23:03:01,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494853371] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:03:01,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:03:01,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:03:01,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733381704] [2024-11-09 23:03:01,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:03:01,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:03:01,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:03:01,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:03:01,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:03:01,902 INFO L87 Difference]: Start difference. First operand 20148 states and 31633 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 23:03:03,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:03:03,966 INFO L93 Difference]: Finished difference Result 53785 states and 85742 transitions. [2024-11-09 23:03:03,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 23:03:03,967 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 127 [2024-11-09 23:03:03,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:03:04,116 INFO L225 Difference]: With dead ends: 53785 [2024-11-09 23:03:04,117 INFO L226 Difference]: Without dead ends: 36367 [2024-11-09 23:03:04,172 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-09 23:03:04,173 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 1103 mSDsluCounter, 718 mSDsCounter, 0 mSdLazyCounter, 1465 mSolverCounterSat, 378 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1118 SdHoareTripleChecker+Valid, 917 SdHoareTripleChecker+Invalid, 1843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 378 IncrementalHoareTripleChecker+Valid, 1465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 23:03:04,173 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1118 Valid, 917 Invalid, 1843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [378 Valid, 1465 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 23:03:04,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36367 states. [2024-11-09 23:03:05,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36367 to 36185. [2024-11-09 23:03:05,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36185 states, 31352 states have (on average 1.4771625414646594) internal successors, (46312), 31359 states have internal predecessors, (46312), 4810 states have call successors, (4810), 18 states have call predecessors, (4810), 22 states have return successors, (5423), 4809 states have call predecessors, (5423), 4809 states have call successors, (5423) [2024-11-09 23:03:05,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36185 states to 36185 states and 56545 transitions. [2024-11-09 23:03:05,535 INFO L78 Accepts]: Start accepts. Automaton has 36185 states and 56545 transitions. Word has length 127 [2024-11-09 23:03:05,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:03:05,536 INFO L471 AbstractCegarLoop]: Abstraction has 36185 states and 56545 transitions. [2024-11-09 23:03:05,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 23:03:05,537 INFO L276 IsEmpty]: Start isEmpty. Operand 36185 states and 56545 transitions. [2024-11-09 23:03:05,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-09 23:03:05,557 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:03:05,557 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:03:05,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-09 23:03:05,558 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:03:05,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:03:05,558 INFO L85 PathProgramCache]: Analyzing trace with hash -1213091602, now seen corresponding path program 1 times [2024-11-09 23:03:05,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:03:05,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384441526] [2024-11-09 23:03:05,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:03:05,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:03:05,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:05,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:03:05,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:05,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:03:05,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:05,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:03:05,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:05,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:03:05,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:05,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:03:05,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:05,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:03:05,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:05,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-09 23:03:05,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:05,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-09 23:03:05,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:05,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-09 23:03:05,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:05,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-09 23:03:05,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:05,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-09 23:03:05,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:05,657 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 23:03:05,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:03:05,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384441526] [2024-11-09 23:03:05,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384441526] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:03:05,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:03:05,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:03:05,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287902643] [2024-11-09 23:03:05,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:03:05,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:03:05,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:03:05,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:03:05,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:03:05,659 INFO L87 Difference]: Start difference. First operand 36185 states and 56545 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 23:03:08,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:03:08,766 INFO L93 Difference]: Finished difference Result 99349 states and 157093 transitions. [2024-11-09 23:03:08,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 23:03:08,766 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 128 [2024-11-09 23:03:08,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:03:09,036 INFO L225 Difference]: With dead ends: 99349 [2024-11-09 23:03:09,037 INFO L226 Difference]: Without dead ends: 66852 [2024-11-09 23:03:09,119 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-09 23:03:09,120 INFO L432 NwaCegarLoop]: 201 mSDtfsCounter, 1100 mSDsluCounter, 722 mSDsCounter, 0 mSdLazyCounter, 1473 mSolverCounterSat, 377 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1115 SdHoareTripleChecker+Valid, 923 SdHoareTripleChecker+Invalid, 1850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 377 IncrementalHoareTripleChecker+Valid, 1473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-09 23:03:09,121 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1115 Valid, 923 Invalid, 1850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [377 Valid, 1473 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-09 23:03:09,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66852 states. [2024-11-09 23:03:11,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66852 to 66670. [2024-11-09 23:03:11,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66670 states, 58122 states have (on average 1.4696500464540105) internal successors, (85419), 58129 states have internal predecessors, (85419), 8525 states have call successors, (8525), 18 states have call predecessors, (8525), 22 states have return successors, (9670), 8524 states have call predecessors, (9670), 8524 states have call successors, (9670) [2024-11-09 23:03:11,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66670 states to 66670 states and 103614 transitions. [2024-11-09 23:03:11,677 INFO L78 Accepts]: Start accepts. Automaton has 66670 states and 103614 transitions. Word has length 128 [2024-11-09 23:03:11,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:03:11,678 INFO L471 AbstractCegarLoop]: Abstraction has 66670 states and 103614 transitions. [2024-11-09 23:03:11,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 23:03:11,679 INFO L276 IsEmpty]: Start isEmpty. Operand 66670 states and 103614 transitions. [2024-11-09 23:03:11,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-09 23:03:11,701 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:03:11,701 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:03:11,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-09 23:03:11,701 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:03:11,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:03:11,702 INFO L85 PathProgramCache]: Analyzing trace with hash -2117256869, now seen corresponding path program 1 times [2024-11-09 23:03:11,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:03:11,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725195632] [2024-11-09 23:03:11,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:03:11,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:03:11,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:11,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:03:11,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:11,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:03:11,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:11,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:03:11,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:11,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:03:11,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:11,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:03:11,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:11,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:03:11,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:11,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-09 23:03:11,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:11,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-09 23:03:11,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:11,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-09 23:03:11,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:11,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-09 23:03:11,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:11,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-09 23:03:11,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:11,808 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 23:03:11,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:03:11,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725195632] [2024-11-09 23:03:11,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725195632] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:03:11,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:03:11,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:03:11,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117104975] [2024-11-09 23:03:11,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:03:11,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:03:11,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:03:11,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:03:11,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:03:11,811 INFO L87 Difference]: Start difference. First operand 66670 states and 103614 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 23:03:15,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:03:15,508 INFO L93 Difference]: Finished difference Result 125498 states and 198172 transitions. [2024-11-09 23:03:15,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 23:03:15,510 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 129 [2024-11-09 23:03:15,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:03:16,249 INFO L225 Difference]: With dead ends: 125498 [2024-11-09 23:03:16,249 INFO L226 Difference]: Without dead ends: 125341 [2024-11-09 23:03:16,282 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-09 23:03:16,283 INFO L432 NwaCegarLoop]: 198 mSDtfsCounter, 1094 mSDsluCounter, 725 mSDsCounter, 0 mSdLazyCounter, 1457 mSolverCounterSat, 373 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1108 SdHoareTripleChecker+Valid, 923 SdHoareTripleChecker+Invalid, 1830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 373 IncrementalHoareTripleChecker+Valid, 1457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 23:03:16,283 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1108 Valid, 923 Invalid, 1830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [373 Valid, 1457 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 23:03:16,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125341 states. [2024-11-09 23:03:19,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125341 to 125159. [2024-11-09 23:03:20,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125159 states, 109812 states have (on average 1.4612701708374312) internal successors, (160465), 109819 states have internal predecessors, (160465), 15324 states have call successors, (15324), 18 states have call predecessors, (15324), 22 states have return successors, (17515), 15323 states have call predecessors, (17515), 15323 states have call successors, (17515) [2024-11-09 23:03:20,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125159 states to 125159 states and 193304 transitions. [2024-11-09 23:03:20,500 INFO L78 Accepts]: Start accepts. Automaton has 125159 states and 193304 transitions. Word has length 129 [2024-11-09 23:03:20,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:03:20,501 INFO L471 AbstractCegarLoop]: Abstraction has 125159 states and 193304 transitions. [2024-11-09 23:03:20,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 23:03:20,501 INFO L276 IsEmpty]: Start isEmpty. Operand 125159 states and 193304 transitions. [2024-11-09 23:03:20,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-09 23:03:20,520 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:03:20,520 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:03:20,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-09 23:03:20,520 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:03:20,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:03:20,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1498736494, now seen corresponding path program 1 times [2024-11-09 23:03:20,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:03:20,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915172082] [2024-11-09 23:03:20,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:03:20,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:03:20,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:20,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:03:20,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:20,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:03:20,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:20,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:03:20,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:20,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:03:20,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:20,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:03:20,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:20,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:03:20,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:20,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-09 23:03:20,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:20,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-09 23:03:20,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:20,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-09 23:03:20,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:20,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-09 23:03:20,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:20,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-09 23:03:20,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:03:20,912 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 23:03:20,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:03:20,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915172082] [2024-11-09 23:03:20,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915172082] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:03:20,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:03:20,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-09 23:03:20,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40300387] [2024-11-09 23:03:20,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:03:20,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 23:03:20,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:03:20,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 23:03:20,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2024-11-09 23:03:20,916 INFO L87 Difference]: Start difference. First operand 125159 states and 193304 transitions. Second operand has 16 states, 15 states have (on average 6.2) internal successors, (93), 10 states have internal predecessors, (93), 5 states have call successors, (13), 7 states have call predecessors, (13), 3 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-09 23:03:30,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:03:30,792 INFO L93 Difference]: Finished difference Result 249845 states and 397941 transitions. [2024-11-09 23:03:30,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-11-09 23:03:30,793 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 6.2) internal successors, (93), 10 states have internal predecessors, (93), 5 states have call successors, (13), 7 states have call predecessors, (13), 3 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) Word has length 130 [2024-11-09 23:03:30,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:03:31,878 INFO L225 Difference]: With dead ends: 249845 [2024-11-09 23:03:31,878 INFO L226 Difference]: Without dead ends: 249694 [2024-11-09 23:03:31,966 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 957 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=715, Invalid=2825, Unknown=0, NotChecked=0, Total=3540 [2024-11-09 23:03:31,967 INFO L432 NwaCegarLoop]: 248 mSDtfsCounter, 3802 mSDsluCounter, 2620 mSDsCounter, 0 mSdLazyCounter, 7537 mSolverCounterSat, 1124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3802 SdHoareTripleChecker+Valid, 2868 SdHoareTripleChecker+Invalid, 8661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1124 IncrementalHoareTripleChecker+Valid, 7537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-09 23:03:31,967 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3802 Valid, 2868 Invalid, 8661 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1124 Valid, 7537 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-09 23:03:32,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249694 states.