./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec11_product24.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_spec11_product24.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 51fa488e776e831bac86701b44da2398387b953b2cee791cda39a1547c039fcd --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 05:30:26,975 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 05:30:27,028 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-08 05:30:27,035 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 05:30:27,038 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 05:30:27,054 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 05:30:27,055 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 05:30:27,055 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 05:30:27,055 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 05:30:27,055 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 05:30:27,055 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 05:30:27,055 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 05:30:27,055 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 05:30:27,055 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 05:30:27,055 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 05:30:27,055 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 05:30:27,055 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 05:30:27,056 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 05:30:27,056 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 05:30:27,056 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 05:30:27,056 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 05:30:27,056 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 05:30:27,056 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 05:30:27,056 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 05:30:27,056 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 05:30:27,056 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 05:30:27,056 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 05:30:27,056 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 05:30:27,056 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 05:30:27,056 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 05:30:27,056 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 05:30:27,056 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 05:30:27,056 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 05:30:27,058 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 05:30:27,058 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 05:30:27,058 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 05:30:27,059 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 05:30:27,059 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 05:30:27,059 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 05:30:27,059 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 05:30:27,059 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 05:30:27,059 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 05:30:27,059 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 05:30:27,059 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 -> 51fa488e776e831bac86701b44da2398387b953b2cee791cda39a1547c039fcd [2025-03-08 05:30:27,300 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 05:30:27,309 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 05:30:27,311 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 05:30:27,312 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 05:30:27,313 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 05:30:27,315 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec11_product24.cil.c [2025-03-08 05:30:28,435 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f385c60e6/6946a9130a38472c9fbe138a44d13474/FLAGe89771c71 [2025-03-08 05:30:28,766 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 05:30:28,767 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec11_product24.cil.c [2025-03-08 05:30:28,789 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f385c60e6/6946a9130a38472c9fbe138a44d13474/FLAGe89771c71 [2025-03-08 05:30:28,805 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f385c60e6/6946a9130a38472c9fbe138a44d13474 [2025-03-08 05:30:28,807 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 05:30:28,809 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 05:30:28,810 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 05:30:28,810 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 05:30:28,813 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 05:30:28,813 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 05:30:28" (1/1) ... [2025-03-08 05:30:28,815 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47e025fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:30:28, skipping insertion in model container [2025-03-08 05:30:28,815 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 05:30:28" (1/1) ... [2025-03-08 05:30:28,857 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 05:30:29,088 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_spec11_product24.cil.c[16887,16900] [2025-03-08 05:30:29,216 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 05:30:29,229 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 05:30:29,235 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] [2025-03-08 05:30:29,236 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [375] [2025-03-08 05:30:29,236 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [741] [2025-03-08 05:30:29,236 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [750] [2025-03-08 05:30:29,236 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1821] [2025-03-08 05:30:29,236 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1856] [2025-03-08 05:30:29,237 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1963] [2025-03-08 05:30:29,237 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2367] [2025-03-08 05:30:29,237 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptAutoResponder_spec.i","") [2384] [2025-03-08 05:30:29,238 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2403] [2025-03-08 05:30:29,238 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2622] [2025-03-08 05:30:29,268 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_spec11_product24.cil.c[16887,16900] [2025-03-08 05:30:29,318 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 05:30:29,341 INFO L204 MainTranslator]: Completed translation [2025-03-08 05:30:29,342 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:30:29 WrapperNode [2025-03-08 05:30:29,342 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 05:30:29,343 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 05:30:29,343 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 05:30:29,344 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 05:30:29,348 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:30:29" (1/1) ... [2025-03-08 05:30:29,363 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:30:29" (1/1) ... [2025-03-08 05:30:29,394 INFO L138 Inliner]: procedures = 130, calls = 192, calls flagged for inlining = 64, calls inlined = 59, statements flattened = 1055 [2025-03-08 05:30:29,395 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 05:30:29,396 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 05:30:29,396 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 05:30:29,396 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 05:30:29,402 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:30:29" (1/1) ... [2025-03-08 05:30:29,403 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:30:29" (1/1) ... [2025-03-08 05:30:29,406 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:30:29" (1/1) ... [2025-03-08 05:30:29,435 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 05:30:29,435 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:30:29" (1/1) ... [2025-03-08 05:30:29,435 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:30:29" (1/1) ... [2025-03-08 05:30:29,449 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:30:29" (1/1) ... [2025-03-08 05:30:29,450 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:30:29" (1/1) ... [2025-03-08 05:30:29,456 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:30:29" (1/1) ... [2025-03-08 05:30:29,458 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:30:29" (1/1) ... [2025-03-08 05:30:29,466 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 05:30:29,469 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 05:30:29,469 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 05:30:29,469 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 05:30:29,470 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:30:29" (1/1) ... [2025-03-08 05:30:29,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 05:30:29,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:30:29,495 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 05:30:29,498 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 05:30:29,516 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2025-03-08 05:30:29,517 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2025-03-08 05:30:29,517 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2025-03-08 05:30:29,517 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2025-03-08 05:30:29,517 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2025-03-08 05:30:29,517 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2025-03-08 05:30:29,517 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2025-03-08 05:30:29,517 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2025-03-08 05:30:29,517 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2025-03-08 05:30:29,518 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2025-03-08 05:30:29,518 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2025-03-08 05:30:29,518 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2025-03-08 05:30:29,518 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2025-03-08 05:30:29,518 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2025-03-08 05:30:29,519 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2025-03-08 05:30:29,519 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2025-03-08 05:30:29,519 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2025-03-08 05:30:29,519 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2025-03-08 05:30:29,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 05:30:29,519 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2025-03-08 05:30:29,519 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2025-03-08 05:30:29,519 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2025-03-08 05:30:29,519 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2025-03-08 05:30:29,519 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2025-03-08 05:30:29,519 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2025-03-08 05:30:29,519 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2025-03-08 05:30:29,519 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2025-03-08 05:30:29,519 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2025-03-08 05:30:29,519 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2025-03-08 05:30:29,519 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2025-03-08 05:30:29,519 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2025-03-08 05:30:29,519 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2025-03-08 05:30:29,519 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2025-03-08 05:30:29,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 05:30:29,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-08 05:30:29,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-08 05:30:29,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-08 05:30:29,520 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2025-03-08 05:30:29,520 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2025-03-08 05:30:29,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 05:30:29,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 05:30:29,698 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 05:30:29,701 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 05:30:29,735 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2311: #res := ~retValue_acc~35; [2025-03-08 05:30:30,041 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1679-1: findPublicKey_#res#1 := findPublicKey_~retValue_acc~18#1; [2025-03-08 05:30:30,041 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2348-1: isVerified_#res#1 := isVerified_~retValue_acc~36#1; [2025-03-08 05:30:30,041 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1316-1: getClientAutoResponse_#res#1 := getClientAutoResponse_~retValue_acc~12#1; [2025-03-08 05:30:30,041 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2828-1: isKeyPairValid_#res#1 := isKeyPairValid_~retValue_acc~42#1; [2025-03-08 05:30:30,042 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2011-1: getEmailId_#res#1 := getEmailId_~retValue_acc~27#1; [2025-03-08 05:30:30,042 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1798-1: getClientId_#res#1 := getClientId_~retValue_acc~20#1; [2025-03-08 05:30:30,042 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1751-1: getClientForwardReceiver_#res#1 := getClientForwardReceiver_~retValue_acc~19#1; [2025-03-08 05:30:30,042 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1363-1: getClientPrivateKey_#res#1 := getClientPrivateKey_~retValue_acc~13#1; [2025-03-08 05:30:30,047 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2274: #res := ~retValue_acc~34; [2025-03-08 05:30:30,066 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2085: #res := ~retValue_acc~29; [2025-03-08 05:30:30,088 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1410-1: getClientKeyringSize_#res#1 := getClientKeyringSize_~retValue_acc~14#1; [2025-03-08 05:30:30,088 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1455: #res#1 := ~retValue_acc~15#1; [2025-03-08 05:30:30,113 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1960-1: createEmail_#res#1 := createEmail_~retValue_acc~25#1; [2025-03-08 05:30:30,325 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2785-1: is_queue_empty_#res#1 := is_queue_empty_~retValue_acc~39#1; [2025-03-08 05:30:30,326 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2794-1: get_queued_client_#res#1 := get_queued_client_~retValue_acc~40#1; [2025-03-08 05:30:30,326 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1853-1: valid_product_#res#1 := valid_product_~retValue_acc~22#1; [2025-03-08 05:30:30,326 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2803-1: get_queued_email_#res#1 := get_queued_email_~retValue_acc~41#1; [2025-03-08 05:30:30,326 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1625-1: getClientKeyringPublicKey_#res#1 := getClientKeyringPublicKey_~retValue_acc~17#1; [2025-03-08 05:30:30,326 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1518-1: getClientKeyringUser_#res#1 := getClientKeyringUser_~retValue_acc~16#1; [2025-03-08 05:30:30,330 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2048: #res := ~retValue_acc~28; [2025-03-08 05:30:30,332 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1936: #res := ~retValue_acc~23; [2025-03-08 05:30:30,447 INFO L? ?]: Removed 460 outVars from TransFormulas that were not future-live. [2025-03-08 05:30:30,447 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 05:30:30,463 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 05:30:30,465 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 05:30:30,466 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 05:30:30 BoogieIcfgContainer [2025-03-08 05:30:30,466 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 05:30:30,468 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 05:30:30,468 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 05:30:30,485 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 05:30:30,485 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 05:30:28" (1/3) ... [2025-03-08 05:30:30,487 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23673336 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 05:30:30, skipping insertion in model container [2025-03-08 05:30:30,487 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:30:29" (2/3) ... [2025-03-08 05:30:30,488 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23673336 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 05:30:30, skipping insertion in model container [2025-03-08 05:30:30,488 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 05:30:30" (3/3) ... [2025-03-08 05:30:30,489 INFO L128 eAbstractionObserver]: Analyzing ICFG email_spec11_product24.cil.c [2025-03-08 05:30:30,499 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 05:30:30,502 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG email_spec11_product24.cil.c that has 18 procedures, 318 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-08 05:30:30,548 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 05:30:30,557 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;@666bffe5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 05:30:30,557 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 05:30:30,561 INFO L276 IsEmpty]: Start isEmpty. Operand has 318 states, 253 states have (on average 1.533596837944664) internal successors, (388), 255 states have internal predecessors, (388), 46 states have call successors, (46), 17 states have call predecessors, (46), 17 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2025-03-08 05:30:30,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2025-03-08 05:30:30,571 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:30:30,571 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:30:30,572 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:30:30,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:30:30,575 INFO L85 PathProgramCache]: Analyzing trace with hash -1832467812, now seen corresponding path program 1 times [2025-03-08 05:30:30,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:30:30,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756090006] [2025-03-08 05:30:30,580 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:30:30,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:30:30,667 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 98 statements into 1 equivalence classes. [2025-03-08 05:30:30,722 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 98 of 98 statements. [2025-03-08 05:30:30,722 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:30:30,722 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:30:31,154 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-03-08 05:30:31,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:30:31,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756090006] [2025-03-08 05:30:31,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756090006] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:30:31,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [171499880] [2025-03-08 05:30:31,158 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:30:31,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:30:31,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:30:31,160 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 05:30:31,161 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 05:30:31,307 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 98 statements into 1 equivalence classes. [2025-03-08 05:30:31,431 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 98 of 98 statements. [2025-03-08 05:30:31,432 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:30:31,432 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:30:31,436 INFO L256 TraceCheckSpWp]: Trace formula consists of 1012 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-08 05:30:31,443 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:30:31,473 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2025-03-08 05:30:31,473 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:30:31,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [171499880] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:30:31,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:30:31,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2025-03-08 05:30:31,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563409017] [2025-03-08 05:30:31,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:30:31,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 05:30:31,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:30:31,495 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 05:30:31,495 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 05:30:31,497 INFO L87 Difference]: Start difference. First operand has 318 states, 253 states have (on average 1.533596837944664) internal successors, (388), 255 states have internal predecessors, (388), 46 states have call successors, (46), 17 states have call predecessors, (46), 17 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2025-03-08 05:30:31,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:30:31,548 INFO L93 Difference]: Finished difference Result 480 states and 712 transitions. [2025-03-08 05:30:31,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 05:30:31,553 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 98 [2025-03-08 05:30:31,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:30:31,561 INFO L225 Difference]: With dead ends: 480 [2025-03-08 05:30:31,561 INFO L226 Difference]: Without dead ends: 312 [2025-03-08 05:30:31,566 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 98 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 05:30:31,568 INFO L435 NwaCegarLoop]: 476 mSDtfsCounter, 0 mSDsluCounter, 473 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 949 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 05:30:31,568 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 949 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:30:31,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2025-03-08 05:30:31,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 312. [2025-03-08 05:30:31,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 248 states have (on average 1.528225806451613) internal successors, (379), 249 states have internal predecessors, (379), 46 states have call successors, (46), 17 states have call predecessors, (46), 17 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2025-03-08 05:30:31,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 470 transitions. [2025-03-08 05:30:31,609 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 470 transitions. Word has length 98 [2025-03-08 05:30:31,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:30:31,613 INFO L471 AbstractCegarLoop]: Abstraction has 312 states and 470 transitions. [2025-03-08 05:30:31,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2025-03-08 05:30:31,613 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 470 transitions. [2025-03-08 05:30:31,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2025-03-08 05:30:31,617 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:30:31,617 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:30:31,625 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 05:30:31,817 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 05:30:31,818 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:30:31,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:30:31,818 INFO L85 PathProgramCache]: Analyzing trace with hash -1075589744, now seen corresponding path program 1 times [2025-03-08 05:30:31,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:30:31,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054659214] [2025-03-08 05:30:31,818 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:30:31,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:30:31,859 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-03-08 05:30:31,873 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-03-08 05:30:31,876 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:30:31,876 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:30:32,076 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2025-03-08 05:30:32,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:30:32,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054659214] [2025-03-08 05:30:32,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054659214] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:30:32,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1999583816] [2025-03-08 05:30:32,077 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:30:32,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:30:32,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:30:32,083 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 05:30:32,084 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 05:30:32,233 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-03-08 05:30:32,349 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-03-08 05:30:32,349 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:30:32,349 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:30:32,352 INFO L256 TraceCheckSpWp]: Trace formula consists of 1036 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-08 05:30:32,359 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:30:32,382 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2025-03-08 05:30:32,382 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:30:32,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1999583816] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:30:32,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:30:32,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2025-03-08 05:30:32,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572860885] [2025-03-08 05:30:32,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:30:32,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 05:30:32,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:30:32,390 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 05:30:32,390 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 05:30:32,390 INFO L87 Difference]: Start difference. First operand 312 states and 470 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2025-03-08 05:30:32,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:30:32,420 INFO L93 Difference]: Finished difference Result 658 states and 1006 transitions. [2025-03-08 05:30:32,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 05:30:32,422 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 105 [2025-03-08 05:30:32,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:30:32,424 INFO L225 Difference]: With dead ends: 658 [2025-03-08 05:30:32,426 INFO L226 Difference]: Without dead ends: 372 [2025-03-08 05:30:32,428 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 05:30:32,428 INFO L435 NwaCegarLoop]: 479 mSDtfsCounter, 115 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 901 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 05:30:32,428 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 901 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:30:32,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2025-03-08 05:30:32,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 364. [2025-03-08 05:30:32,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 289 states have (on average 1.546712802768166) internal successors, (447), 290 states have internal predecessors, (447), 57 states have call successors, (57), 17 states have call predecessors, (57), 17 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2025-03-08 05:30:32,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 560 transitions. [2025-03-08 05:30:32,463 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 560 transitions. Word has length 105 [2025-03-08 05:30:32,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:30:32,465 INFO L471 AbstractCegarLoop]: Abstraction has 364 states and 560 transitions. [2025-03-08 05:30:32,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2025-03-08 05:30:32,465 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 560 transitions. [2025-03-08 05:30:32,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2025-03-08 05:30:32,468 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:30:32,468 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:30:32,475 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 05:30:32,672 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 05:30:32,672 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:30:32,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:30:32,673 INFO L85 PathProgramCache]: Analyzing trace with hash -910589829, now seen corresponding path program 1 times [2025-03-08 05:30:32,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:30:32,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140304527] [2025-03-08 05:30:32,673 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:30:32,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:30:32,698 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 106 statements into 1 equivalence classes. [2025-03-08 05:30:32,707 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 106 of 106 statements. [2025-03-08 05:30:32,707 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:30:32,707 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:30:32,870 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2025-03-08 05:30:32,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:30:32,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140304527] [2025-03-08 05:30:32,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140304527] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:30:32,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1066223259] [2025-03-08 05:30:32,870 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:30:32,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:30:32,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:30:32,875 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 05:30:32,876 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 05:30:33,016 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 106 statements into 1 equivalence classes. [2025-03-08 05:30:33,124 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 106 of 106 statements. [2025-03-08 05:30:33,124 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:30:33,124 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:30:33,131 INFO L256 TraceCheckSpWp]: Trace formula consists of 1041 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-08 05:30:33,135 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:30:33,210 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2025-03-08 05:30:33,210 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:30:33,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1066223259] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:30:33,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:30:33,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2025-03-08 05:30:33,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068633045] [2025-03-08 05:30:33,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:30:33,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 05:30:33,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:30:33,211 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 05:30:33,211 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-03-08 05:30:33,211 INFO L87 Difference]: Start difference. First operand 364 states and 560 transitions. Second operand has 5 states, 4 states have (on average 18.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2025-03-08 05:30:33,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:30:33,271 INFO L93 Difference]: Finished difference Result 719 states and 1110 transitions. [2025-03-08 05:30:33,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 05:30:33,272 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 106 [2025-03-08 05:30:33,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:30:33,278 INFO L225 Difference]: With dead ends: 719 [2025-03-08 05:30:33,278 INFO L226 Difference]: Without dead ends: 366 [2025-03-08 05:30:33,280 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 104 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 05:30:33,280 INFO L435 NwaCegarLoop]: 461 mSDtfsCounter, 2 mSDsluCounter, 1372 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1833 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 05:30:33,281 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1833 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:30:33,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2025-03-08 05:30:33,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 366. [2025-03-08 05:30:33,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 290 states have (on average 1.5448275862068965) internal successors, (448), 292 states have internal predecessors, (448), 57 states have call successors, (57), 17 states have call predecessors, (57), 18 states have return successors, (58), 56 states have call predecessors, (58), 56 states have call successors, (58) [2025-03-08 05:30:33,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 563 transitions. [2025-03-08 05:30:33,309 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 563 transitions. Word has length 106 [2025-03-08 05:30:33,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:30:33,310 INFO L471 AbstractCegarLoop]: Abstraction has 366 states and 563 transitions. [2025-03-08 05:30:33,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2025-03-08 05:30:33,311 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 563 transitions. [2025-03-08 05:30:33,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2025-03-08 05:30:33,315 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:30:33,315 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:30:33,325 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-08 05:30:33,515 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 05:30:33,516 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:30:33,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:30:33,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1472597263, now seen corresponding path program 1 times [2025-03-08 05:30:33,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:30:33,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776763619] [2025-03-08 05:30:33,516 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:30:33,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:30:33,533 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 107 statements into 1 equivalence classes. [2025-03-08 05:30:33,539 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 107 of 107 statements. [2025-03-08 05:30:33,539 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:30:33,539 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:30:33,649 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2025-03-08 05:30:33,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:30:33,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776763619] [2025-03-08 05:30:33,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776763619] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:30:33,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [141787553] [2025-03-08 05:30:33,650 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:30:33,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:30:33,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:30:33,652 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 05:30:33,654 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 05:30:33,787 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 107 statements into 1 equivalence classes. [2025-03-08 05:30:33,879 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 107 of 107 statements. [2025-03-08 05:30:33,879 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:30:33,880 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:30:33,883 INFO L256 TraceCheckSpWp]: Trace formula consists of 1042 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-08 05:30:33,886 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:30:33,920 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2025-03-08 05:30:33,921 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:30:33,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [141787553] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:30:33,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:30:33,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2025-03-08 05:30:33,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342987038] [2025-03-08 05:30:33,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:30:33,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 05:30:33,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:30:33,922 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 05:30:33,922 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2025-03-08 05:30:33,922 INFO L87 Difference]: Start difference. First operand 366 states and 563 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2025-03-08 05:30:33,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:30:33,978 INFO L93 Difference]: Finished difference Result 721 states and 1115 transitions. [2025-03-08 05:30:33,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 05:30:33,978 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 107 [2025-03-08 05:30:33,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:30:33,981 INFO L225 Difference]: With dead ends: 721 [2025-03-08 05:30:33,981 INFO L226 Difference]: Without dead ends: 368 [2025-03-08 05:30:33,982 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 105 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 05:30:33,984 INFO L435 NwaCegarLoop]: 459 mSDtfsCounter, 2 mSDsluCounter, 1360 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1819 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 05:30:33,985 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1819 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:30:33,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2025-03-08 05:30:33,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 368. [2025-03-08 05:30:33,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 291 states have (on average 1.5429553264604812) internal successors, (449), 294 states have internal predecessors, (449), 57 states have call successors, (57), 17 states have call predecessors, (57), 19 states have return successors, (63), 56 states have call predecessors, (63), 56 states have call successors, (63) [2025-03-08 05:30:33,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 569 transitions. [2025-03-08 05:30:33,997 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 569 transitions. Word has length 107 [2025-03-08 05:30:33,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:30:33,998 INFO L471 AbstractCegarLoop]: Abstraction has 368 states and 569 transitions. [2025-03-08 05:30:33,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2025-03-08 05:30:33,998 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 569 transitions. [2025-03-08 05:30:33,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2025-03-08 05:30:33,999 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:30:33,999 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:30:34,009 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 05:30:34,200 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 05:30:34,200 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:30:34,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:30:34,201 INFO L85 PathProgramCache]: Analyzing trace with hash 187473864, now seen corresponding path program 1 times [2025-03-08 05:30:34,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:30:34,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088332991] [2025-03-08 05:30:34,201 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:30:34,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:30:34,219 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 108 statements into 1 equivalence classes. [2025-03-08 05:30:34,225 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 108 of 108 statements. [2025-03-08 05:30:34,225 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:30:34,225 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:30:34,340 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2025-03-08 05:30:34,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:30:34,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088332991] [2025-03-08 05:30:34,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088332991] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:30:34,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:30:34,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 05:30:34,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761797746] [2025-03-08 05:30:34,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:30:34,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 05:30:34,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:30:34,341 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 05:30:34,341 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 05:30:34,341 INFO L87 Difference]: Start difference. First operand 368 states and 569 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2025-03-08 05:30:34,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:30:34,374 INFO L93 Difference]: Finished difference Result 713 states and 1106 transitions. [2025-03-08 05:30:34,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 05:30:34,374 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 108 [2025-03-08 05:30:34,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:30:34,376 INFO L225 Difference]: With dead ends: 713 [2025-03-08 05:30:34,376 INFO L226 Difference]: Without dead ends: 368 [2025-03-08 05:30:34,378 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 05:30:34,378 INFO L435 NwaCegarLoop]: 462 mSDtfsCounter, 2 mSDsluCounter, 1375 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1837 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 05:30:34,378 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1837 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:30:34,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2025-03-08 05:30:34,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 368. [2025-03-08 05:30:34,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 291 states have (on average 1.5429553264604812) internal successors, (449), 294 states have internal predecessors, (449), 57 states have call successors, (57), 17 states have call predecessors, (57), 19 states have return successors, (62), 56 states have call predecessors, (62), 56 states have call successors, (62) [2025-03-08 05:30:34,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 568 transitions. [2025-03-08 05:30:34,391 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 568 transitions. Word has length 108 [2025-03-08 05:30:34,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:30:34,391 INFO L471 AbstractCegarLoop]: Abstraction has 368 states and 568 transitions. [2025-03-08 05:30:34,391 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2025-03-08 05:30:34,391 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 568 transitions. [2025-03-08 05:30:34,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2025-03-08 05:30:34,393 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:30:34,393 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:30:34,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-08 05:30:34,393 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:30:34,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:30:34,394 INFO L85 PathProgramCache]: Analyzing trace with hash 10640378, now seen corresponding path program 2 times [2025-03-08 05:30:34,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:30:34,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637668498] [2025-03-08 05:30:34,394 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-08 05:30:34,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:30:34,411 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 109 statements into 2 equivalence classes. [2025-03-08 05:30:34,416 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 43 of 109 statements. [2025-03-08 05:30:34,416 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-08 05:30:34,416 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:30:34,464 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2025-03-08 05:30:34,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:30:34,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637668498] [2025-03-08 05:30:34,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637668498] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:30:34,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:30:34,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 05:30:34,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528410543] [2025-03-08 05:30:34,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:30:34,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 05:30:34,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:30:34,465 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 05:30:34,465 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 05:30:34,465 INFO L87 Difference]: Start difference. First operand 368 states and 568 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) [2025-03-08 05:30:34,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:30:34,482 INFO L93 Difference]: Finished difference Result 368 states and 568 transitions. [2025-03-08 05:30:34,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 05:30:34,482 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) Word has length 109 [2025-03-08 05:30:34,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:30:34,483 INFO L225 Difference]: With dead ends: 368 [2025-03-08 05:30:34,483 INFO L226 Difference]: Without dead ends: 0 [2025-03-08 05:30:34,484 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 05:30:34,484 INFO L435 NwaCegarLoop]: 465 mSDtfsCounter, 0 mSDsluCounter, 1388 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1853 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 05:30:34,484 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1853 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:30:34,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-03-08 05:30:34,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-03-08 05:30:34,485 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 05:30:34,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-03-08 05:30:34,485 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 109 [2025-03-08 05:30:34,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:30:34,485 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-08 05:30:34,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) [2025-03-08 05:30:34,485 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-03-08 05:30:34,486 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-03-08 05:30:34,488 INFO L782 garLoopResultBuilder]: Registering result SAFE for location outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-08 05:30:34,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-08 05:30:34,490 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2025-03-08 05:30:34,491 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-03-08 05:30:34,565 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-08 05:30:34,575 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.03 05:30:34 BoogieIcfgContainer [2025-03-08 05:30:34,575 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-08 05:30:34,576 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-08 05:30:34,576 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-08 05:30:34,576 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-08 05:30:34,577 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 05:30:30" (3/4) ... [2025-03-08 05:30:34,578 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-08 05:30:34,583 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure getEmailSignKey [2025-03-08 05:30:34,583 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure outgoing [2025-03-08 05:30:34,583 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure isSigned [2025-03-08 05:30:34,583 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure setClientPrivateKey [2025-03-08 05:30:34,584 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure chuckKeyAdd [2025-03-08 05:30:34,584 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure setEmailTo [2025-03-08 05:30:34,584 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure getEmailTo [2025-03-08 05:30:34,584 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure createClientKeyringEntry [2025-03-08 05:30:34,584 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure generateKeyPair [2025-03-08 05:30:34,584 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure setClientKeyringUser [2025-03-08 05:30:34,584 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure sendEmail [2025-03-08 05:30:34,584 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure setEmailFrom [2025-03-08 05:30:34,584 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure getEmailFrom [2025-03-08 05:30:34,584 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure isReadable [2025-03-08 05:30:34,584 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure queue [2025-03-08 05:30:34,584 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure setClientKeyringPublicKey [2025-03-08 05:30:34,584 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure setClientId [2025-03-08 05:30:34,604 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 88 nodes and edges [2025-03-08 05:30:34,606 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 47 nodes and edges [2025-03-08 05:30:34,607 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2025-03-08 05:30:34,608 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-08 05:30:34,609 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-08 05:30:34,610 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-08 05:30:34,712 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-08 05:30:34,712 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-08 05:30:34,712 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-08 05:30:34,714 INFO L158 Benchmark]: Toolchain (without parser) took 5904.16ms. Allocated memory was 142.6MB in the beginning and 327.2MB in the end (delta: 184.5MB). Free memory was 104.5MB in the beginning and 201.0MB in the end (delta: -96.5MB). Peak memory consumption was 87.6MB. Max. memory is 16.1GB. [2025-03-08 05:30:34,714 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 201.3MB. Free memory is still 125.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 05:30:34,714 INFO L158 Benchmark]: CACSL2BoogieTranslator took 532.72ms. Allocated memory is still 142.6MB. Free memory was 104.5MB in the beginning and 64.4MB in the end (delta: 40.1MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-03-08 05:30:34,714 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.94ms. Allocated memory is still 142.6MB. Free memory was 64.4MB in the beginning and 58.1MB in the end (delta: 6.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 05:30:34,715 INFO L158 Benchmark]: Boogie Preprocessor took 70.46ms. Allocated memory is still 142.6MB. Free memory was 58.1MB in the beginning and 52.9MB in the end (delta: 5.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 05:30:34,715 INFO L158 Benchmark]: IcfgBuilder took 997.24ms. Allocated memory is still 142.6MB. Free memory was 52.9MB in the beginning and 44.0MB in the end (delta: 8.9MB). Peak memory consumption was 33.5MB. Max. memory is 16.1GB. [2025-03-08 05:30:34,715 INFO L158 Benchmark]: TraceAbstraction took 4107.93ms. Allocated memory was 142.6MB in the beginning and 327.2MB in the end (delta: 184.5MB). Free memory was 43.4MB in the beginning and 217.6MB in the end (delta: -174.2MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. [2025-03-08 05:30:34,715 INFO L158 Benchmark]: Witness Printer took 136.26ms. Allocated memory is still 327.2MB. Free memory was 217.6MB in the beginning and 201.0MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-08 05:30:34,716 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 201.3MB. Free memory is still 125.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 532.72ms. Allocated memory is still 142.6MB. Free memory was 104.5MB in the beginning and 64.4MB in the end (delta: 40.1MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.94ms. Allocated memory is still 142.6MB. Free memory was 64.4MB in the beginning and 58.1MB in the end (delta: 6.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 70.46ms. Allocated memory is still 142.6MB. Free memory was 58.1MB in the beginning and 52.9MB in the end (delta: 5.2MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 997.24ms. Allocated memory is still 142.6MB. Free memory was 52.9MB in the beginning and 44.0MB in the end (delta: 8.9MB). Peak memory consumption was 33.5MB. Max. memory is 16.1GB. * TraceAbstraction took 4107.93ms. Allocated memory was 142.6MB in the beginning and 327.2MB in the end (delta: 184.5MB). Free memory was 43.4MB in the beginning and 217.6MB in the end (delta: -174.2MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. * Witness Printer took 136.26ms. Allocated memory is still 327.2MB. Free memory was 217.6MB in the beginning and 201.0MB in the end (delta: 16.6MB). 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,"Test.i","") [48] - GenericResultAtLocation [Line: 375]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [375] - GenericResultAtLocation [Line: 741]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [741] - GenericResultAtLocation [Line: 750]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [750] - GenericResultAtLocation [Line: 1821]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1821] - GenericResultAtLocation [Line: 1856]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1856] - GenericResultAtLocation [Line: 1963]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1963] - GenericResultAtLocation [Line: 2367]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2367] - GenericResultAtLocation [Line: 2384]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"DecryptAutoResponder_spec.i","") [2384] - GenericResultAtLocation [Line: 2403]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2403] - GenericResultAtLocation [Line: 2622]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2622] * 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: 746]: 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 18 procedures, 318 locations, 526 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.0s, OverallIterations: 6, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 139 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 121 mSDsluCounter, 9192 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6390 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 137 IncrementalHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 2802 mSDtfsCounter, 137 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 445 GetRequests, 416 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=368occurred 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, 1049 NumberOfCodeBlocks, 983 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1039 ConstructedInterpolants, 0 QuantifiedInterpolants, 1130 SizeOfPredicates, 3 NumberOfNonLiveVariables, 4131 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 10 InterpolantComputations, 6 PerfectInterpolantSequences, 304/319 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 05:30:34,731 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