./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec0_product19.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.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_spec0_product19.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 9deea958caebdff7c89a17deb67516eff149386872824a7682accca78686b765 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 05:29:26,308 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 05:29:26,363 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-08 05:29:26,369 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 05:29:26,371 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 05:29:26,396 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 05:29:26,398 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 05:29:26,398 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 05:29:26,398 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 05:29:26,398 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 05:29:26,399 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 05:29:26,399 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 05:29:26,400 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 05:29:26,400 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 05:29:26,400 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 05:29:26,400 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 05:29:26,400 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 05:29:26,401 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 05:29:26,401 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 05:29:26,401 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 05:29:26,401 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 05:29:26,401 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 05:29:26,401 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 05:29:26,401 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 05:29:26,401 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 05:29:26,401 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 05:29:26,401 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 05:29:26,401 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 05:29:26,401 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 05:29:26,402 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 05:29:26,402 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 05:29:26,402 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 05:29:26,402 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 05:29:26,402 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 05:29:26,402 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 05:29:26,402 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 05:29:26,403 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 05:29:26,403 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 05:29:26,403 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 05:29:26,403 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 05:29:26,403 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 05:29:26,403 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 05:29:26,403 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 05:29:26,403 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> 9deea958caebdff7c89a17deb67516eff149386872824a7682accca78686b765 [2025-03-08 05:29:26,639 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 05:29:26,645 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 05:29:26,647 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 05:29:26,648 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 05:29:26,648 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 05:29:26,649 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec0_product19.cil.c [2025-03-08 05:29:27,823 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8857bb246/e6eb29d817fe4abfaaaf452e86cf3188/FLAGae7e1d4d4 [2025-03-08 05:29:28,136 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 05:29:28,137 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec0_product19.cil.c [2025-03-08 05:29:28,161 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8857bb246/e6eb29d817fe4abfaaaf452e86cf3188/FLAGae7e1d4d4 [2025-03-08 05:29:28,178 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8857bb246/e6eb29d817fe4abfaaaf452e86cf3188 [2025-03-08 05:29:28,181 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 05:29:28,182 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 05:29:28,183 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 05:29:28,183 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 05:29:28,186 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 05:29:28,187 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 05:29:28" (1/1) ... [2025-03-08 05:29:28,189 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cab8a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:29:28, skipping insertion in model container [2025-03-08 05:29:28,189 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 05:29:28" (1/1) ... [2025-03-08 05:29:28,237 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 05:29:28,521 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_spec0_product19.cil.c[39319,39332] [2025-03-08 05:29:28,594 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 05:29:28,606 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 05:29:28,612 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [48] [2025-03-08 05:29:28,614 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [167] [2025-03-08 05:29:28,614 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [467] [2025-03-08 05:29:28,614 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [505] [2025-03-08 05:29:28,614 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [797] [2025-03-08 05:29:28,615 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1864] [2025-03-08 05:29:28,615 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1873] [2025-03-08 05:29:28,615 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1890] [2025-03-08 05:29:28,615 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptForward_spec.i","") [2106] [2025-03-08 05:29:28,615 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2125] [2025-03-08 05:29:28,615 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2491] [2025-03-08 05:29:28,687 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_spec0_product19.cil.c[39319,39332] [2025-03-08 05:29:28,706 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 05:29:28,731 INFO L204 MainTranslator]: Completed translation [2025-03-08 05:29:28,731 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:29:28 WrapperNode [2025-03-08 05:29:28,732 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 05:29:28,732 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 05:29:28,732 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 05:29:28,732 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 05:29:28,737 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:29:28" (1/1) ... [2025-03-08 05:29:28,756 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:29:28" (1/1) ... [2025-03-08 05:29:28,794 INFO L138 Inliner]: procedures = 127, calls = 184, calls flagged for inlining = 60, calls inlined = 55, statements flattened = 999 [2025-03-08 05:29:28,794 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 05:29:28,795 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 05:29:28,795 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 05:29:28,795 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 05:29:28,801 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:29:28" (1/1) ... [2025-03-08 05:29:28,802 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:29:28" (1/1) ... [2025-03-08 05:29:28,809 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:29:28" (1/1) ... [2025-03-08 05:29:28,831 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]. [2025-03-08 05:29:28,832 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:29:28" (1/1) ... [2025-03-08 05:29:28,837 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:29:28" (1/1) ... [2025-03-08 05:29:28,853 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:29:28" (1/1) ... [2025-03-08 05:29:28,855 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:29:28" (1/1) ... [2025-03-08 05:29:28,858 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:29:28" (1/1) ... [2025-03-08 05:29:28,859 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:29:28" (1/1) ... [2025-03-08 05:29:28,873 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 05:29:28,874 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 05:29:28,874 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 05:29:28,874 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 05:29:28,875 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:29:28" (1/1) ... [2025-03-08 05:29:28,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 05:29:28,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:29:28,901 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) [2025-03-08 05:29:28,906 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 [2025-03-08 05:29:28,923 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2025-03-08 05:29:28,923 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2025-03-08 05:29:28,923 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2025-03-08 05:29:28,923 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2025-03-08 05:29:28,923 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2025-03-08 05:29:28,923 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2025-03-08 05:29:28,923 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2025-03-08 05:29:28,923 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2025-03-08 05:29:28,923 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2025-03-08 05:29:28,923 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2025-03-08 05:29:28,923 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2025-03-08 05:29:28,923 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2025-03-08 05:29:28,923 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2025-03-08 05:29:28,923 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2025-03-08 05:29:28,923 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2025-03-08 05:29:28,923 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2025-03-08 05:29:28,924 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 05:29:28,924 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2025-03-08 05:29:28,924 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2025-03-08 05:29:28,924 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2025-03-08 05:29:28,924 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2025-03-08 05:29:28,924 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2025-03-08 05:29:28,924 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2025-03-08 05:29:28,924 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2025-03-08 05:29:28,924 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2025-03-08 05:29:28,924 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2025-03-08 05:29:28,924 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2025-03-08 05:29:28,924 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2025-03-08 05:29:28,924 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2025-03-08 05:29:28,924 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2025-03-08 05:29:28,924 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2025-03-08 05:29:28,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 05:29:28,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-08 05:29:28,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-08 05:29:28,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-08 05:29:28,924 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2025-03-08 05:29:28,924 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2025-03-08 05:29:28,924 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 05:29:28,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 05:29:29,076 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 05:29:29,078 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 05:29:29,116 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2836: #res := ~retValue_acc~41; [2025-03-08 05:29:29,369 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1794-1: getClientForwardReceiver_#res#1 := getClientForwardReceiver_~retValue_acc~26#1; [2025-03-08 05:29:29,370 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1406-1: getClientPrivateKey_#res#1 := getClientPrivateKey_~retValue_acc~20#1; [2025-03-08 05:29:29,370 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1722-1: findPublicKey_#res#1 := findPublicKey_~retValue_acc~25#1; [2025-03-08 05:29:29,370 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L370-1: isKeyPairValid_#res#1 := isKeyPairValid_~retValue_acc~7#1; [2025-03-08 05:29:29,370 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2873-1: isVerified_#res#1 := isVerified_~retValue_acc~42#1; [2025-03-08 05:29:29,370 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1841-1: getClientId_#res#1 := getClientId_~retValue_acc~27#1; [2025-03-08 05:29:29,370 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2536-1: getEmailId_#res#1 := getEmailId_~retValue_acc~33#1; [2025-03-08 05:29:29,376 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2799: #res := ~retValue_acc~40; [2025-03-08 05:29:29,400 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2610: #res := ~retValue_acc~35; [2025-03-08 05:29:29,420 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1498: #res#1 := ~retValue_acc~22#1; [2025-03-08 05:29:29,421 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1453-1: getClientKeyringSize_#res#1 := getClientKeyringSize_~retValue_acc~21#1; [2025-03-08 05:29:29,443 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L164-1: createEmail_#res#1 := createEmail_~retValue_acc~2#1; [2025-03-08 05:29:29,628 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L327-1: is_queue_empty_#res#1 := is_queue_empty_~retValue_acc~4#1; [2025-03-08 05:29:29,628 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L336-1: get_queued_client_#res#1 := get_queued_client_~retValue_acc~5#1; [2025-03-08 05:29:29,628 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L345-1: get_queued_email_#res#1 := get_queued_email_~retValue_acc~6#1; [2025-03-08 05:29:29,628 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L502-1: valid_product_#res#1 := valid_product_~retValue_acc~9#1; [2025-03-08 05:29:29,628 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1668-1: getClientKeyringPublicKey_#res#1 := getClientKeyringPublicKey_~retValue_acc~24#1; [2025-03-08 05:29:29,628 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1561-1: getClientKeyringUser_#res#1 := getClientKeyringUser_~retValue_acc~23#1; [2025-03-08 05:29:29,634 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2573: #res := ~retValue_acc~34; [2025-03-08 05:29:29,636 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L140: #res := ~retValue_acc~0; [2025-03-08 05:29:29,733 INFO L? ?]: Removed 433 outVars from TransFormulas that were not future-live. [2025-03-08 05:29:29,733 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 05:29:29,748 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 05:29:29,748 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 05:29:29,749 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 05:29:29 BoogieIcfgContainer [2025-03-08 05:29:29,749 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 05:29:29,750 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 05:29:29,750 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 05:29:29,753 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 05:29:29,754 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 05:29:28" (1/3) ... [2025-03-08 05:29:29,754 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6363ce6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 05:29:29, skipping insertion in model container [2025-03-08 05:29:29,754 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:29:28" (2/3) ... [2025-03-08 05:29:29,754 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6363ce6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 05:29:29, skipping insertion in model container [2025-03-08 05:29:29,754 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 05:29:29" (3/3) ... [2025-03-08 05:29:29,755 INFO L128 eAbstractionObserver]: Analyzing ICFG email_spec0_product19.cil.c [2025-03-08 05:29:29,765 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 05:29:29,768 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG email_spec0_product19.cil.c that has 17 procedures, 299 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-08 05:29:29,830 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 05:29:29,837 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;@5bc70c10, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 05:29:29,838 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 05:29:29,841 INFO L276 IsEmpty]: Start isEmpty. Operand has 299 states, 239 states have (on average 1.5355648535564854) internal successors, (367), 241 states have internal predecessors, (367), 42 states have call successors, (42), 16 states have call predecessors, (42), 16 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2025-03-08 05:29:29,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2025-03-08 05:29:29,852 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:29:29,853 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:29:29,853 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:29:29,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:29:29,857 INFO L85 PathProgramCache]: Analyzing trace with hash 637295691, now seen corresponding path program 1 times [2025-03-08 05:29:29,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:29:29,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857057729] [2025-03-08 05:29:29,863 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:29:29,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:29:29,951 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 104 statements into 1 equivalence classes. [2025-03-08 05:29:30,011 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 104 of 104 statements. [2025-03-08 05:29:30,011 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:29:30,011 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:29:30,483 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2025-03-08 05:29:30,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:29:30,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857057729] [2025-03-08 05:29:30,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857057729] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:29:30,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1496482593] [2025-03-08 05:29:30,484 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:29:30,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:29:30,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:29:30,488 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) [2025-03-08 05:29:30,489 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-08 05:29:30,633 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 104 statements into 1 equivalence classes. [2025-03-08 05:29:30,762 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 104 of 104 statements. [2025-03-08 05:29:30,762 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:29:30,762 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:29:30,767 INFO L256 TraceCheckSpWp]: Trace formula consists of 1021 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-08 05:29:30,772 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:29:30,795 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2025-03-08 05:29:30,796 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:29:30,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1496482593] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:29:30,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:29:30,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2025-03-08 05:29:30,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692091476] [2025-03-08 05:29:30,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:29:30,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 05:29:30,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:29:30,821 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 05:29:30,822 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 05:29:30,824 INFO L87 Difference]: Start difference. First operand has 299 states, 239 states have (on average 1.5355648535564854) internal successors, (367), 241 states have internal predecessors, (367), 42 states have call successors, (42), 16 states have call predecessors, (42), 16 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-03-08 05:29:30,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:29:30,882 INFO L93 Difference]: Finished difference Result 447 states and 662 transitions. [2025-03-08 05:29:30,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 05:29:30,884 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 104 [2025-03-08 05:29:30,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:29:30,891 INFO L225 Difference]: With dead ends: 447 [2025-03-08 05:29:30,891 INFO L226 Difference]: Without dead ends: 293 [2025-03-08 05:29:30,894 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 05:29:30,897 INFO L435 NwaCegarLoop]: 447 mSDtfsCounter, 0 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 891 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 05:29:30,897 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 891 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:29:30,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2025-03-08 05:29:30,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 293. [2025-03-08 05:29:30,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 234 states have (on average 1.5299145299145298) internal successors, (358), 235 states have internal predecessors, (358), 42 states have call successors, (42), 16 states have call predecessors, (42), 16 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2025-03-08 05:29:30,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 441 transitions. [2025-03-08 05:29:30,956 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 441 transitions. Word has length 104 [2025-03-08 05:29:30,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:29:30,958 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 441 transitions. [2025-03-08 05:29:30,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-03-08 05:29:30,958 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 441 transitions. [2025-03-08 05:29:30,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2025-03-08 05:29:30,964 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:29:30,964 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:29:30,972 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-08 05:29:31,165 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 [2025-03-08 05:29:31,165 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:29:31,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:29:31,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1080863571, now seen corresponding path program 1 times [2025-03-08 05:29:31,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:29:31,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752867621] [2025-03-08 05:29:31,166 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:29:31,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:29:31,197 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 108 statements into 1 equivalence classes. [2025-03-08 05:29:31,210 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 108 of 108 statements. [2025-03-08 05:29:31,213 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:29:31,214 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:29:31,418 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-03-08 05:29:31,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:29:31,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752867621] [2025-03-08 05:29:31,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752867621] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:29:31,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [178703847] [2025-03-08 05:29:31,420 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:29:31,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:29:31,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:29:31,423 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) [2025-03-08 05:29:31,424 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-08 05:29:31,568 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 108 statements into 1 equivalence classes. [2025-03-08 05:29:31,688 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 108 of 108 statements. [2025-03-08 05:29:31,688 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:29:31,688 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:29:31,692 INFO L256 TraceCheckSpWp]: Trace formula consists of 1032 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-08 05:29:31,697 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:29:31,714 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2025-03-08 05:29:31,718 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:29:31,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [178703847] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:29:31,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:29:31,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2025-03-08 05:29:31,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089494007] [2025-03-08 05:29:31,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:29:31,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 05:29:31,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:29:31,720 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 05:29:31,720 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 05:29:31,721 INFO L87 Difference]: Start difference. First operand 293 states and 441 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-03-08 05:29:31,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:29:31,758 INFO L93 Difference]: Finished difference Result 615 states and 940 transitions. [2025-03-08 05:29:31,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 05:29:31,759 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 108 [2025-03-08 05:29:31,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:29:31,762 INFO L225 Difference]: With dead ends: 615 [2025-03-08 05:29:31,762 INFO L226 Difference]: Without dead ends: 348 [2025-03-08 05:29:31,767 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 05:29:31,768 INFO L435 NwaCegarLoop]: 445 mSDtfsCounter, 107 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 837 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 [2025-03-08 05:29:31,768 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 837 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:29:31,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2025-03-08 05:29:31,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 340. [2025-03-08 05:29:31,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 270 states have (on average 1.548148148148148) internal successors, (418), 271 states have internal predecessors, (418), 53 states have call successors, (53), 16 states have call predecessors, (53), 16 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2025-03-08 05:29:31,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 523 transitions. [2025-03-08 05:29:31,801 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 523 transitions. Word has length 108 [2025-03-08 05:29:31,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:29:31,802 INFO L471 AbstractCegarLoop]: Abstraction has 340 states and 523 transitions. [2025-03-08 05:29:31,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-03-08 05:29:31,803 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 523 transitions. [2025-03-08 05:29:31,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2025-03-08 05:29:31,806 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:29:31,806 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:29:31,813 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-08 05:29:32,006 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 [2025-03-08 05:29:32,008 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:29:32,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:29:32,008 INFO L85 PathProgramCache]: Analyzing trace with hash 654432520, now seen corresponding path program 1 times [2025-03-08 05:29:32,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:29:32,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276575499] [2025-03-08 05:29:32,008 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:29:32,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:29:32,029 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 109 statements into 1 equivalence classes. [2025-03-08 05:29:32,042 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 109 of 109 statements. [2025-03-08 05:29:32,042 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:29:32,042 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:29:32,217 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-03-08 05:29:32,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:29:32,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276575499] [2025-03-08 05:29:32,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276575499] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:29:32,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1426461066] [2025-03-08 05:29:32,220 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:29:32,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:29:32,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:29:32,222 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) [2025-03-08 05:29:32,224 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-08 05:29:32,349 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 109 statements into 1 equivalence classes. [2025-03-08 05:29:32,464 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 109 of 109 statements. [2025-03-08 05:29:32,464 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:29:32,464 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:29:32,470 INFO L256 TraceCheckSpWp]: Trace formula consists of 1037 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-08 05:29:32,476 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:29:32,523 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2025-03-08 05:29:32,524 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:29:32,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1426461066] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:29:32,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:29:32,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2025-03-08 05:29:32,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846367475] [2025-03-08 05:29:32,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:29:32,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 05:29:32,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:29:32,525 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 05:29:32,525 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-03-08 05:29:32,525 INFO L87 Difference]: Start difference. First operand 340 states and 523 transitions. Second operand has 5 states, 4 states have (on average 17.5) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2025-03-08 05:29:32,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:29:32,577 INFO L93 Difference]: Finished difference Result 671 states and 1036 transitions. [2025-03-08 05:29:32,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 05:29:32,578 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.5) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 109 [2025-03-08 05:29:32,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:29:32,583 INFO L225 Difference]: With dead ends: 671 [2025-03-08 05:29:32,583 INFO L226 Difference]: Without dead ends: 342 [2025-03-08 05:29:32,584 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-03-08 05:29:32,584 INFO L435 NwaCegarLoop]: 432 mSDtfsCounter, 2 mSDsluCounter, 1285 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1717 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 [2025-03-08 05:29:32,585 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1717 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:29:32,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2025-03-08 05:29:32,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 342. [2025-03-08 05:29:32,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 271 states have (on average 1.5461254612546125) internal successors, (419), 273 states have internal predecessors, (419), 53 states have call successors, (53), 16 states have call predecessors, (53), 17 states have return successors, (54), 52 states have call predecessors, (54), 52 states have call successors, (54) [2025-03-08 05:29:32,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 526 transitions. [2025-03-08 05:29:32,610 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 526 transitions. Word has length 109 [2025-03-08 05:29:32,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:29:32,610 INFO L471 AbstractCegarLoop]: Abstraction has 342 states and 526 transitions. [2025-03-08 05:29:32,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.5) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2025-03-08 05:29:32,610 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 526 transitions. [2025-03-08 05:29:32,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2025-03-08 05:29:32,612 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:29:32,613 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:29:32,624 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-08 05:29:32,814 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 [2025-03-08 05:29:32,814 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:29:32,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:29:32,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1408934854, now seen corresponding path program 1 times [2025-03-08 05:29:32,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:29:32,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133260922] [2025-03-08 05:29:32,815 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:29:32,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:29:32,833 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 110 statements into 1 equivalence classes. [2025-03-08 05:29:32,843 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 110 of 110 statements. [2025-03-08 05:29:32,843 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:29:32,843 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:29:32,988 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-03-08 05:29:32,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:29:32,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133260922] [2025-03-08 05:29:32,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133260922] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:29:32,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [96272807] [2025-03-08 05:29:32,988 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:29:32,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:29:32,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:29:32,991 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) [2025-03-08 05:29:32,994 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-08 05:29:33,136 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 110 statements into 1 equivalence classes. [2025-03-08 05:29:33,226 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 110 of 110 statements. [2025-03-08 05:29:33,226 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:29:33,226 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:29:33,230 INFO L256 TraceCheckSpWp]: Trace formula consists of 1038 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-08 05:29:33,237 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:29:33,286 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2025-03-08 05:29:33,286 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:29:33,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [96272807] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:29:33,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:29:33,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2025-03-08 05:29:33,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913802151] [2025-03-08 05:29:33,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:29:33,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 05:29:33,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:29:33,287 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 05:29:33,287 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2025-03-08 05:29:33,287 INFO L87 Difference]: Start difference. First operand 342 states and 526 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2025-03-08 05:29:33,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:29:33,346 INFO L93 Difference]: Finished difference Result 673 states and 1041 transitions. [2025-03-08 05:29:33,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 05:29:33,349 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 110 [2025-03-08 05:29:33,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:29:33,352 INFO L225 Difference]: With dead ends: 673 [2025-03-08 05:29:33,352 INFO L226 Difference]: Without dead ends: 344 [2025-03-08 05:29:33,353 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2025-03-08 05:29:33,353 INFO L435 NwaCegarLoop]: 430 mSDtfsCounter, 2 mSDsluCounter, 1273 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1703 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 [2025-03-08 05:29:33,356 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1703 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:29:33,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2025-03-08 05:29:33,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 344. [2025-03-08 05:29:33,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 272 states have (on average 1.5441176470588236) internal successors, (420), 275 states have internal predecessors, (420), 53 states have call successors, (53), 16 states have call predecessors, (53), 18 states have return successors, (59), 52 states have call predecessors, (59), 52 states have call successors, (59) [2025-03-08 05:29:33,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 532 transitions. [2025-03-08 05:29:33,375 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 532 transitions. Word has length 110 [2025-03-08 05:29:33,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:29:33,375 INFO L471 AbstractCegarLoop]: Abstraction has 344 states and 532 transitions. [2025-03-08 05:29:33,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2025-03-08 05:29:33,376 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 532 transitions. [2025-03-08 05:29:33,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2025-03-08 05:29:33,378 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:29:33,378 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:29:33,385 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-08 05:29:33,578 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 [2025-03-08 05:29:33,579 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:29:33,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:29:33,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1395998283, now seen corresponding path program 1 times [2025-03-08 05:29:33,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:29:33,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919850196] [2025-03-08 05:29:33,579 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:29:33,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:29:33,595 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 111 statements into 1 equivalence classes. [2025-03-08 05:29:33,601 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 111 of 111 statements. [2025-03-08 05:29:33,601 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:29:33,601 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:29:33,718 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-03-08 05:29:33,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:29:33,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919850196] [2025-03-08 05:29:33,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919850196] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:29:33,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:29:33,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 05:29:33,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046762536] [2025-03-08 05:29:33,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:29:33,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 05:29:33,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:29:33,720 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 05:29:33,720 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 05:29:33,720 INFO L87 Difference]: Start difference. First operand 344 states and 532 transitions. Second operand has 5 states, 4 states have (on average 17.0) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2025-03-08 05:29:33,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:29:33,759 INFO L93 Difference]: Finished difference Result 665 states and 1032 transitions. [2025-03-08 05:29:33,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 05:29:33,759 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.0) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 111 [2025-03-08 05:29:33,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:29:33,762 INFO L225 Difference]: With dead ends: 665 [2025-03-08 05:29:33,762 INFO L226 Difference]: Without dead ends: 344 [2025-03-08 05:29:33,763 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 05:29:33,763 INFO L435 NwaCegarLoop]: 433 mSDtfsCounter, 2 mSDsluCounter, 1288 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1721 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 05:29:33,763 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1721 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:29:33,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2025-03-08 05:29:33,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 344. [2025-03-08 05:29:33,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 272 states have (on average 1.5441176470588236) internal successors, (420), 275 states have internal predecessors, (420), 53 states have call successors, (53), 16 states have call predecessors, (53), 18 states have return successors, (58), 52 states have call predecessors, (58), 52 states have call successors, (58) [2025-03-08 05:29:33,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 531 transitions. [2025-03-08 05:29:33,783 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 531 transitions. Word has length 111 [2025-03-08 05:29:33,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:29:33,783 INFO L471 AbstractCegarLoop]: Abstraction has 344 states and 531 transitions. [2025-03-08 05:29:33,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.0) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2025-03-08 05:29:33,784 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 531 transitions. [2025-03-08 05:29:33,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2025-03-08 05:29:33,786 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:29:33,786 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:29:33,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-08 05:29:33,786 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:29:33,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:29:33,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1276179029, now seen corresponding path program 2 times [2025-03-08 05:29:33,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:29:33,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874205662] [2025-03-08 05:29:33,787 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-08 05:29:33,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:29:33,806 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 112 statements into 2 equivalence classes. [2025-03-08 05:29:33,811 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 43 of 112 statements. [2025-03-08 05:29:33,811 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-08 05:29:33,811 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:29:33,861 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2025-03-08 05:29:33,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:29:33,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874205662] [2025-03-08 05:29:33,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874205662] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:29:33,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:29:33,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 05:29:33,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971356012] [2025-03-08 05:29:33,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:29:33,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 05:29:33,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:29:33,864 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 05:29:33,864 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 05:29:33,864 INFO L87 Difference]: Start difference. First operand 344 states and 531 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2025-03-08 05:29:33,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:29:33,888 INFO L93 Difference]: Finished difference Result 344 states and 531 transitions. [2025-03-08 05:29:33,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 05:29:33,889 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) Word has length 112 [2025-03-08 05:29:33,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:29:33,890 INFO L225 Difference]: With dead ends: 344 [2025-03-08 05:29:33,890 INFO L226 Difference]: Without dead ends: 0 [2025-03-08 05:29:33,891 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 05:29:33,892 INFO L435 NwaCegarLoop]: 436 mSDtfsCounter, 0 mSDsluCounter, 1301 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1737 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 05:29:33,892 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1737 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:29:33,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-03-08 05:29:33,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-03-08 05:29:33,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 05:29:33,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-03-08 05:29:33,894 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 112 [2025-03-08 05:29:33,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:29:33,894 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-08 05:29:33,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2025-03-08 05:29:33,895 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-03-08 05:29:33,895 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-03-08 05:29:33,898 INFO L782 garLoopResultBuilder]: Registering result SAFE for location outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-08 05:29:33,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-08 05:29:33,902 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2025-03-08 05:29:33,903 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-03-08 05:29:33,978 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-08 05:29:33,988 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.03 05:29:33 BoogieIcfgContainer [2025-03-08 05:29:33,988 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-08 05:29:33,989 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-08 05:29:33,989 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-08 05:29:33,989 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-08 05:29:33,989 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 05:29:29" (3/4) ... [2025-03-08 05:29:33,991 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-08 05:29:33,995 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure getEmailSignKey [2025-03-08 05:29:33,996 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure outgoing [2025-03-08 05:29:33,996 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure isSigned [2025-03-08 05:29:33,996 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure setClientPrivateKey [2025-03-08 05:29:33,996 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure chuckKeyAdd [2025-03-08 05:29:33,996 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure setEmailTo [2025-03-08 05:29:33,996 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure getEmailTo [2025-03-08 05:29:33,996 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure createClientKeyringEntry [2025-03-08 05:29:33,996 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure generateKeyPair [2025-03-08 05:29:33,996 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure setClientKeyringUser [2025-03-08 05:29:33,996 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure sendEmail [2025-03-08 05:29:33,996 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure setEmailFrom [2025-03-08 05:29:33,996 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure getEmailFrom [2025-03-08 05:29:33,997 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure isReadable [2025-03-08 05:29:33,997 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure setClientKeyringPublicKey [2025-03-08 05:29:33,997 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure setClientId [2025-03-08 05:29:34,018 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 84 nodes and edges [2025-03-08 05:29:34,020 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 43 nodes and edges [2025-03-08 05:29:34,021 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2025-03-08 05:29:34,022 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-08 05:29:34,023 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-08 05:29:34,024 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-08 05:29:34,143 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-08 05:29:34,143 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-08 05:29:34,144 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-08 05:29:34,144 INFO L158 Benchmark]: Toolchain (without parser) took 5962.46ms. Allocated memory was 142.6MB in the beginning and 176.2MB in the end (delta: 33.6MB). Free memory was 109.9MB in the beginning and 59.5MB in the end (delta: 50.4MB). Peak memory consumption was 88.6MB. Max. memory is 16.1GB. [2025-03-08 05:29:34,145 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 201.3MB. Free memory is still 122.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 05:29:34,145 INFO L158 Benchmark]: CACSL2BoogieTranslator took 549.04ms. Allocated memory is still 142.6MB. Free memory was 109.9MB in the beginning and 71.5MB in the end (delta: 38.4MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-03-08 05:29:34,146 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.18ms. Allocated memory is still 142.6MB. Free memory was 71.5MB in the beginning and 66.1MB in the end (delta: 5.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 05:29:34,146 INFO L158 Benchmark]: Boogie Preprocessor took 78.44ms. Allocated memory is still 142.6MB. Free memory was 66.1MB in the beginning and 61.4MB in the end (delta: 4.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 05:29:34,146 INFO L158 Benchmark]: IcfgBuilder took 875.07ms. Allocated memory is still 142.6MB. Free memory was 61.4MB in the beginning and 55.1MB in the end (delta: 6.3MB). Peak memory consumption was 33.9MB. Max. memory is 16.1GB. [2025-03-08 05:29:34,147 INFO L158 Benchmark]: TraceAbstraction took 4237.77ms. Allocated memory was 142.6MB in the beginning and 176.2MB in the end (delta: 33.6MB). Free memory was 54.4MB in the beginning and 76.3MB in the end (delta: -21.9MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. [2025-03-08 05:29:34,147 INFO L158 Benchmark]: Witness Printer took 155.01ms. Allocated memory is still 176.2MB. Free memory was 76.3MB in the beginning and 59.5MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-08 05:29:34,148 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 201.3MB. Free memory is still 122.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 549.04ms. Allocated memory is still 142.6MB. Free memory was 109.9MB in the beginning and 71.5MB in the end (delta: 38.4MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.18ms. Allocated memory is still 142.6MB. Free memory was 71.5MB in the beginning and 66.1MB in the end (delta: 5.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 78.44ms. Allocated memory is still 142.6MB. Free memory was 66.1MB in the beginning and 61.4MB in the end (delta: 4.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 875.07ms. Allocated memory is still 142.6MB. Free memory was 61.4MB in the beginning and 55.1MB in the end (delta: 6.3MB). Peak memory consumption was 33.9MB. Max. memory is 16.1GB. * TraceAbstraction took 4237.77ms. Allocated memory was 142.6MB in the beginning and 176.2MB in the end (delta: 33.6MB). Free memory was 54.4MB in the beginning and 76.3MB in the end (delta: -21.9MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. * Witness Printer took 155.01ms. Allocated memory is still 176.2MB. Free memory was 76.3MB in the beginning and 59.5MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 48]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [48] - GenericResultAtLocation [Line: 167]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [167] - GenericResultAtLocation [Line: 467]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [467] - GenericResultAtLocation [Line: 505]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [505] - GenericResultAtLocation [Line: 797]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [797] - GenericResultAtLocation [Line: 1864]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1864] - GenericResultAtLocation [Line: 1873]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1873] - GenericResultAtLocation [Line: 1890]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1890] - GenericResultAtLocation [Line: 2106]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"DecryptForward_spec.i","") [2106] - GenericResultAtLocation [Line: 2125]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2125] - GenericResultAtLocation [Line: 2491]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2491] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1869]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 17 procedures, 299 locations, 493 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.1s, OverallIterations: 6, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 131 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 113 mSDsluCounter, 8606 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5983 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 137 IncrementalHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 2623 mSDtfsCounter, 137 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 460 GetRequests, 431 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=344occurred in iteration=4, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 1085 NumberOfCodeBlocks, 1016 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1075 ConstructedInterpolants, 0 QuantifiedInterpolants, 1166 SizeOfPredicates, 3 NumberOfNonLiveVariables, 4128 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 10 InterpolantComputations, 6 PerfectInterpolantSequences, 344/359 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-08 05:29:34,164 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE