./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec0_product37.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/email_spec0_product37.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 9dc54d5213c4407313cf4404e06f4e3ced3af047edaa52f6d33441570abdeda7 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-03 14:20:11,363 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-03 14:20:11,414 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-03 14:20:11,417 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-03 14:20:11,417 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-03 14:20:11,434 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-03 14:20:11,435 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-03 14:20:11,435 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-03 14:20:11,436 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-03 14:20:11,436 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-03 14:20:11,437 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-03 14:20:11,437 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-03 14:20:11,437 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-03 14:20:11,437 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-03 14:20:11,437 INFO L153 SettingsManager]: * Use SBE=true [2025-03-03 14:20:11,437 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-03 14:20:11,438 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-03 14:20:11,438 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-03 14:20:11,438 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-03 14:20:11,438 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-03 14:20:11,438 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-03 14:20:11,438 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-03 14:20:11,438 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-03 14:20:11,438 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-03 14:20:11,438 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-03 14:20:11,438 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-03 14:20:11,438 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-03 14:20:11,438 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-03 14:20:11,439 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-03 14:20:11,439 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-03 14:20:11,439 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-03 14:20:11,439 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-03 14:20:11,439 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 14:20:11,439 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-03 14:20:11,440 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-03 14:20:11,440 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-03 14:20:11,440 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-03 14:20:11,440 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-03 14:20:11,440 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-03 14:20:11,440 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-03 14:20:11,440 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-03 14:20:11,440 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-03 14:20:11,440 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-03 14:20:11,440 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 -> 9dc54d5213c4407313cf4404e06f4e3ced3af047edaa52f6d33441570abdeda7 [2025-03-03 14:20:11,666 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-03 14:20:11,673 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-03 14:20:11,675 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-03 14:20:11,677 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-03 14:20:11,677 INFO L274 PluginConnector]: CDTParser initialized [2025-03-03 14:20:11,678 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec0_product37.cil.c [2025-03-03 14:20:12,833 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff8370168/00c1d31d74984edfb668c33f75d38c1d/FLAG5bc7e9fde [2025-03-03 14:20:13,166 INFO L384 CDTParser]: Found 1 translation units. [2025-03-03 14:20:13,167 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec0_product37.cil.c [2025-03-03 14:20:13,189 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff8370168/00c1d31d74984edfb668c33f75d38c1d/FLAG5bc7e9fde [2025-03-03 14:20:13,412 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff8370168/00c1d31d74984edfb668c33f75d38c1d [2025-03-03 14:20:13,414 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-03 14:20:13,416 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-03 14:20:13,417 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-03 14:20:13,417 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-03 14:20:13,422 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-03 14:20:13,422 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 02:20:13" (1/1) ... [2025-03-03 14:20:13,424 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1581076a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:20:13, skipping insertion in model container [2025-03-03 14:20:13,424 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 02:20:13" (1/1) ... [2025-03-03 14:20:13,480 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-03 14:20:13,614 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec0_product37.cil.c[1542,1555] [2025-03-03 14:20:13,874 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 14:20:13,892 INFO L200 MainTranslator]: Completed pre-run [2025-03-03 14:20:13,898 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [48] [2025-03-03 14:20:13,900 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [57] [2025-03-03 14:20:13,900 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [384] [2025-03-03 14:20:13,900 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1455] [2025-03-03 14:20:13,900 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1686] [2025-03-03 14:20:13,900 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1721] [2025-03-03 14:20:13,900 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1738] [2025-03-03 14:20:13,900 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2146] [2025-03-03 14:20:13,900 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2512] [2025-03-03 14:20:13,900 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptForward_spec.i","") [2576] [2025-03-03 14:20:13,901 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2595] [2025-03-03 14:20:13,907 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec0_product37.cil.c[1542,1555] [2025-03-03 14:20:14,002 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 14:20:14,025 INFO L204 MainTranslator]: Completed translation [2025-03-03 14:20:14,025 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:20:14 WrapperNode [2025-03-03 14:20:14,025 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-03 14:20:14,026 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-03 14:20:14,026 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-03 14:20:14,026 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-03 14:20:14,030 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:20:14" (1/1) ... [2025-03-03 14:20:14,045 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:20:14" (1/1) ... [2025-03-03 14:20:14,073 INFO L138 Inliner]: procedures = 124, calls = 170, calls flagged for inlining = 51, calls inlined = 46, statements flattened = 831 [2025-03-03 14:20:14,074 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-03 14:20:14,074 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-03 14:20:14,074 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-03 14:20:14,074 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-03 14:20:14,080 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:20:14" (1/1) ... [2025-03-03 14:20:14,081 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:20:14" (1/1) ... [2025-03-03 14:20:14,087 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:20:14" (1/1) ... [2025-03-03 14:20:14,115 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]. [2025-03-03 14:20:14,115 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:20:14" (1/1) ... [2025-03-03 14:20:14,115 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:20:14" (1/1) ... [2025-03-03 14:20:14,125 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:20:14" (1/1) ... [2025-03-03 14:20:14,126 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:20:14" (1/1) ... [2025-03-03 14:20:14,134 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:20:14" (1/1) ... [2025-03-03 14:20:14,137 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:20:14" (1/1) ... [2025-03-03 14:20:14,140 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-03 14:20:14,140 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-03 14:20:14,140 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-03 14:20:14,141 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-03 14:20:14,141 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:20:14" (1/1) ... [2025-03-03 14:20:14,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 14:20:14,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:20:14,165 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) [2025-03-03 14:20:14,167 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 [2025-03-03 14:20:14,184 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2025-03-03 14:20:14,184 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2025-03-03 14:20:14,184 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2025-03-03 14:20:14,184 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2025-03-03 14:20:14,184 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2025-03-03 14:20:14,184 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2025-03-03 14:20:14,184 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2025-03-03 14:20:14,184 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2025-03-03 14:20:14,184 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2025-03-03 14:20:14,185 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2025-03-03 14:20:14,185 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2025-03-03 14:20:14,185 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2025-03-03 14:20:14,185 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2025-03-03 14:20:14,185 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2025-03-03 14:20:14,185 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2025-03-03 14:20:14,185 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2025-03-03 14:20:14,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-03 14:20:14,185 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2025-03-03 14:20:14,185 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2025-03-03 14:20:14,185 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2025-03-03 14:20:14,186 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2025-03-03 14:20:14,186 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2025-03-03 14:20:14,186 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2025-03-03 14:20:14,186 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2025-03-03 14:20:14,186 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2025-03-03 14:20:14,186 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2025-03-03 14:20:14,186 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2025-03-03 14:20:14,186 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2025-03-03 14:20:14,186 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2025-03-03 14:20:14,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-03 14:20:14,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-03 14:20:14,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-03 14:20:14,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-03 14:20:14,186 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2025-03-03 14:20:14,186 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2025-03-03 14:20:14,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-03 14:20:14,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-03 14:20:14,337 INFO L256 CfgBuilder]: Building ICFG [2025-03-03 14:20:14,339 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-03 14:20:14,470 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1790-1: getEmailId_#res#1 := getEmailId_~retValue_acc~27#1; [2025-03-03 14:20:14,470 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1432-1: getClientId_#res#1 := getClientId_~retValue_acc~17#1; [2025-03-03 14:20:14,470 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L950-1: getClientAutoResponse_#res#1 := getClientAutoResponse_~retValue_acc~9#1; [2025-03-03 14:20:14,470 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1385-1: getClientForwardReceiver_#res#1 := getClientForwardReceiver_~retValue_acc~16#1; [2025-03-03 14:20:14,489 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1864: #res := ~retValue_acc~29; [2025-03-03 14:20:14,530 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1089: #res#1 := ~retValue_acc~12#1; [2025-03-03 14:20:14,530 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1044-1: getClientKeyringSize_#res#1 := getClientKeyringSize_~retValue_acc~11#1; [2025-03-03 14:20:14,577 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2573-1: createEmail_#res#1 := createEmail_~retValue_acc~42#1; [2025-03-03 14:20:14,834 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1259-1: getClientKeyringPublicKey_#res#1 := getClientKeyringPublicKey_~retValue_acc~14#1; [2025-03-03 14:20:14,835 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1152-1: getClientKeyringUser_#res#1 := getClientKeyringUser_~retValue_acc~13#1; [2025-03-03 14:20:14,835 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1600-1: is_queue_empty_#res#1 := is_queue_empty_~retValue_acc~19#1; [2025-03-03 14:20:14,835 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1609-1: get_queued_client_#res#1 := get_queued_client_~retValue_acc~20#1; [2025-03-03 14:20:14,835 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1618-1: get_queued_email_#res#1 := get_queued_email_~retValue_acc~21#1; [2025-03-03 14:20:14,835 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1718-1: valid_product_#res#1 := valid_product_~retValue_acc~24#1; [2025-03-03 14:20:14,840 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1827: #res := ~retValue_acc~28; [2025-03-03 14:20:14,842 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2549: #res := ~retValue_acc~40; [2025-03-03 14:20:14,928 INFO L? ?]: Removed 326 outVars from TransFormulas that were not future-live. [2025-03-03 14:20:14,929 INFO L307 CfgBuilder]: Performing block encoding [2025-03-03 14:20:14,939 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-03 14:20:14,939 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-03 14:20:14,940 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 02:20:14 BoogieIcfgContainer [2025-03-03 14:20:14,940 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-03 14:20:14,942 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-03 14:20:14,942 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-03 14:20:14,945 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-03 14:20:14,945 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 02:20:13" (1/3) ... [2025-03-03 14:20:14,946 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@920f0b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 02:20:14, skipping insertion in model container [2025-03-03 14:20:14,946 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:20:14" (2/3) ... [2025-03-03 14:20:14,946 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@920f0b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 02:20:14, skipping insertion in model container [2025-03-03 14:20:14,946 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 02:20:14" (3/3) ... [2025-03-03 14:20:14,947 INFO L128 eAbstractionObserver]: Analyzing ICFG email_spec0_product37.cil.c [2025-03-03 14:20:14,956 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-03 14:20:14,959 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG email_spec0_product37.cil.c that has 16 procedures, 257 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-03 14:20:15,009 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-03 14:20:15,018 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;@7e03f71c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-03 14:20:15,019 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-03 14:20:15,024 INFO L276 IsEmpty]: Start isEmpty. Operand has 257 states, 200 states have (on average 1.52) internal successors, (304), 202 states have internal predecessors, (304), 40 states have call successors, (40), 15 states have call predecessors, (40), 15 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2025-03-03 14:20:15,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2025-03-03 14:20:15,035 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:20:15,036 INFO L218 NwaCegarLoop]: trace histogram [3, 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] [2025-03-03 14:20:15,036 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:20:15,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:20:15,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1899080349, now seen corresponding path program 1 times [2025-03-03 14:20:15,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:20:15,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85374049] [2025-03-03 14:20:15,049 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:20:15,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:20:15,128 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 97 statements into 1 equivalence classes. [2025-03-03 14:20:15,181 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 97 of 97 statements. [2025-03-03 14:20:15,181 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:20:15,184 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:20:15,545 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2025-03-03 14:20:15,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:20:15,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85374049] [2025-03-03 14:20:15,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85374049] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 14:20:15,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1903391552] [2025-03-03 14:20:15,547 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:20:15,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:20:15,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:20:15,549 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) [2025-03-03 14:20:15,551 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-03 14:20:15,670 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 97 statements into 1 equivalence classes. [2025-03-03 14:20:15,770 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 97 of 97 statements. [2025-03-03 14:20:15,771 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:20:15,771 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:20:15,774 INFO L256 TraceCheckSpWp]: Trace formula consists of 917 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-03 14:20:15,779 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 14:20:15,789 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2025-03-03 14:20:15,790 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 14:20:15,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1903391552] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:20:15,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 14:20:15,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 5 [2025-03-03 14:20:15,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949128634] [2025-03-03 14:20:15,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:20:15,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-03 14:20:15,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:20:15,808 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-03 14:20:15,808 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-03 14:20:15,813 INFO L87 Difference]: Start difference. First operand has 257 states, 200 states have (on average 1.52) internal successors, (304), 202 states have internal predecessors, (304), 40 states have call successors, (40), 15 states have call predecessors, (40), 15 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) Second operand has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 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) [2025-03-03 14:20:15,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:20:15,837 INFO L93 Difference]: Finished difference Result 356 states and 516 transitions. [2025-03-03 14:20:15,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-03 14:20:15,839 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 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 97 [2025-03-03 14:20:15,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:20:15,844 INFO L225 Difference]: With dead ends: 356 [2025-03-03 14:20:15,845 INFO L226 Difference]: Without dead ends: 250 [2025-03-03 14:20:15,847 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-03 14:20:15,849 INFO L435 NwaCegarLoop]: 381 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 14:20:15,849 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 14:20:15,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2025-03-03 14:20:15,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 250. [2025-03-03 14:20:15,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 194 states have (on average 1.5154639175257731) internal successors, (294), 195 states have internal predecessors, (294), 40 states have call successors, (40), 15 states have call predecessors, (40), 15 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2025-03-03 14:20:15,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 373 transitions. [2025-03-03 14:20:15,888 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 373 transitions. Word has length 97 [2025-03-03 14:20:15,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:20:15,889 INFO L471 AbstractCegarLoop]: Abstraction has 250 states and 373 transitions. [2025-03-03 14:20:15,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 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) [2025-03-03 14:20:15,890 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 373 transitions. [2025-03-03 14:20:15,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2025-03-03 14:20:15,894 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:20:15,894 INFO L218 NwaCegarLoop]: trace histogram [3, 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] [2025-03-03 14:20:15,901 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-03 14:20:16,095 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 [2025-03-03 14:20:16,095 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:20:16,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:20:16,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1003877655, now seen corresponding path program 1 times [2025-03-03 14:20:16,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:20:16,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411920910] [2025-03-03 14:20:16,096 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:20:16,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:20:16,113 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 98 statements into 1 equivalence classes. [2025-03-03 14:20:16,122 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 98 of 98 statements. [2025-03-03 14:20:16,127 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:20:16,127 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:20:16,298 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2025-03-03 14:20:16,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:20:16,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411920910] [2025-03-03 14:20:16,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411920910] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 14:20:16,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1376050643] [2025-03-03 14:20:16,299 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:20:16,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:20:16,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:20:16,301 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) [2025-03-03 14:20:16,303 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-03 14:20:16,441 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 98 statements into 1 equivalence classes. [2025-03-03 14:20:16,543 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 98 of 98 statements. [2025-03-03 14:20:16,543 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:20:16,543 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:20:16,548 INFO L256 TraceCheckSpWp]: Trace formula consists of 918 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-03 14:20:16,553 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 14:20:16,580 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2025-03-03 14:20:16,580 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 14:20:16,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1376050643] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:20:16,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 14:20:16,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2025-03-03 14:20:16,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233316749] [2025-03-03 14:20:16,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:20:16,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 14:20:16,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:20:16,581 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 14:20:16,585 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-03 14:20:16,586 INFO L87 Difference]: Start difference. First operand 250 states and 373 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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) [2025-03-03 14:20:16,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:20:16,618 INFO L93 Difference]: Finished difference Result 345 states and 497 transitions. [2025-03-03 14:20:16,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 14:20:16,619 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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 [2025-03-03 14:20:16,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:20:16,621 INFO L225 Difference]: With dead ends: 345 [2025-03-03 14:20:16,621 INFO L226 Difference]: Without dead ends: 252 [2025-03-03 14:20:16,622 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 [2025-03-03 14:20:16,622 INFO L435 NwaCegarLoop]: 372 mSDtfsCounter, 0 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 742 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 14:20:16,622 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 742 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 14:20:16,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2025-03-03 14:20:16,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2025-03-03 14:20:16,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 196 states have (on average 1.510204081632653) internal successors, (296), 197 states have internal predecessors, (296), 40 states have call successors, (40), 15 states have call predecessors, (40), 15 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2025-03-03 14:20:16,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 375 transitions. [2025-03-03 14:20:16,646 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 375 transitions. Word has length 98 [2025-03-03 14:20:16,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:20:16,646 INFO L471 AbstractCegarLoop]: Abstraction has 252 states and 375 transitions. [2025-03-03 14:20:16,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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) [2025-03-03 14:20:16,647 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 375 transitions. [2025-03-03 14:20:16,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2025-03-03 14:20:16,651 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:20:16,651 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2025-03-03 14:20:16,658 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-03 14:20:16,852 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 [2025-03-03 14:20:16,853 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:20:16,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:20:16,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1257613499, now seen corresponding path program 1 times [2025-03-03 14:20:16,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:20:16,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931474777] [2025-03-03 14:20:16,854 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:20:16,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:20:16,874 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 106 statements into 1 equivalence classes. [2025-03-03 14:20:16,882 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 106 of 106 statements. [2025-03-03 14:20:16,886 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:20:16,886 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:20:17,039 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-03-03 14:20:17,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:20:17,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931474777] [2025-03-03 14:20:17,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931474777] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 14:20:17,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [59993039] [2025-03-03 14:20:17,040 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:20:17,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:20:17,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:20:17,042 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) [2025-03-03 14:20:17,044 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-03 14:20:17,161 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 106 statements into 1 equivalence classes. [2025-03-03 14:20:17,257 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 106 of 106 statements. [2025-03-03 14:20:17,257 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:20:17,257 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:20:17,260 INFO L256 TraceCheckSpWp]: Trace formula consists of 943 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-03 14:20:17,268 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 14:20:17,282 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2025-03-03 14:20:17,284 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 14:20:17,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [59993039] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:20:17,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 14:20:17,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2025-03-03 14:20:17,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029123311] [2025-03-03 14:20:17,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:20:17,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 14:20:17,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:20:17,286 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 14:20:17,286 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-03 14:20:17,286 INFO L87 Difference]: Start difference. First operand 252 states and 375 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) [2025-03-03 14:20:17,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:20:17,316 INFO L93 Difference]: Finished difference Result 538 states and 816 transitions. [2025-03-03 14:20:17,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 14:20:17,316 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 106 [2025-03-03 14:20:17,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:20:17,320 INFO L225 Difference]: With dead ends: 538 [2025-03-03 14:20:17,320 INFO L226 Difference]: Without dead ends: 313 [2025-03-03 14:20:17,321 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-03 14:20:17,322 INFO L435 NwaCegarLoop]: 383 mSDtfsCounter, 115 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 709 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 [2025-03-03 14:20:17,322 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 709 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 14:20:17,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2025-03-03 14:20:17,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 305. [2025-03-03 14:20:17,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 238 states have (on average 1.5336134453781514) internal successors, (365), 239 states have internal predecessors, (365), 51 states have call successors, (51), 15 states have call predecessors, (51), 15 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2025-03-03 14:20:17,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 466 transitions. [2025-03-03 14:20:17,340 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 466 transitions. Word has length 106 [2025-03-03 14:20:17,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:20:17,341 INFO L471 AbstractCegarLoop]: Abstraction has 305 states and 466 transitions. [2025-03-03 14:20:17,341 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) [2025-03-03 14:20:17,341 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 466 transitions. [2025-03-03 14:20:17,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2025-03-03 14:20:17,344 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:20:17,346 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2025-03-03 14:20:17,353 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-03 14:20:17,546 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 [2025-03-03 14:20:17,547 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:20:17,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:20:17,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1098732993, now seen corresponding path program 1 times [2025-03-03 14:20:17,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:20:17,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595935568] [2025-03-03 14:20:17,548 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:20:17,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:20:17,568 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 107 statements into 1 equivalence classes. [2025-03-03 14:20:17,576 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 107 of 107 statements. [2025-03-03 14:20:17,577 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:20:17,577 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:20:17,694 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-03-03 14:20:17,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:20:17,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595935568] [2025-03-03 14:20:17,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595935568] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 14:20:17,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1108968006] [2025-03-03 14:20:17,695 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:20:17,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:20:17,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:20:17,697 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) [2025-03-03 14:20:17,699 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-03 14:20:17,814 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 107 statements into 1 equivalence classes. [2025-03-03 14:20:17,900 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 107 of 107 statements. [2025-03-03 14:20:17,900 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:20:17,900 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:20:17,905 INFO L256 TraceCheckSpWp]: Trace formula consists of 948 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-03 14:20:17,910 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 14:20:17,951 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-03-03 14:20:17,953 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 14:20:17,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1108968006] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:20:17,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 14:20:17,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2025-03-03 14:20:17,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793476485] [2025-03-03 14:20:17,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:20:17,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-03 14:20:17,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:20:17,955 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-03 14:20:17,956 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-03-03 14:20:17,956 INFO L87 Difference]: Start difference. First operand 305 states and 466 transitions. Second operand has 5 states, 4 states have (on average 17.75) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (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) [2025-03-03 14:20:18,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:20:18,012 INFO L93 Difference]: Finished difference Result 601 states and 922 transitions. [2025-03-03 14:20:18,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-03 14:20:18,013 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.75) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (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 107 [2025-03-03 14:20:18,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:20:18,015 INFO L225 Difference]: With dead ends: 601 [2025-03-03 14:20:18,015 INFO L226 Difference]: Without dead ends: 307 [2025-03-03 14:20:18,017 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-03-03 14:20:18,017 INFO L435 NwaCegarLoop]: 365 mSDtfsCounter, 2 mSDsluCounter, 1084 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1449 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 [2025-03-03 14:20:18,017 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1449 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 14:20:18,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2025-03-03 14:20:18,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 307. [2025-03-03 14:20:18,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 239 states have (on average 1.5313807531380754) internal successors, (366), 241 states have internal predecessors, (366), 51 states have call successors, (51), 15 states have call predecessors, (51), 16 states have return successors, (52), 50 states have call predecessors, (52), 50 states have call successors, (52) [2025-03-03 14:20:18,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 469 transitions. [2025-03-03 14:20:18,028 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 469 transitions. Word has length 107 [2025-03-03 14:20:18,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:20:18,029 INFO L471 AbstractCegarLoop]: Abstraction has 307 states and 469 transitions. [2025-03-03 14:20:18,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.75) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (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) [2025-03-03 14:20:18,029 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 469 transitions. [2025-03-03 14:20:18,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2025-03-03 14:20:18,030 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:20:18,031 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:20:18,037 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-03 14:20:18,231 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 [2025-03-03 14:20:18,231 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:20:18,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:20:18,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1286290999, now seen corresponding path program 1 times [2025-03-03 14:20:18,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:20:18,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985559296] [2025-03-03 14:20:18,232 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:20:18,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:20:18,247 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 108 statements into 1 equivalence classes. [2025-03-03 14:20:18,253 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 108 of 108 statements. [2025-03-03 14:20:18,254 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:20:18,254 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:20:18,382 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-03-03 14:20:18,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:20:18,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985559296] [2025-03-03 14:20:18,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985559296] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 14:20:18,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [649387163] [2025-03-03 14:20:18,382 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:20:18,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:20:18,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:20:18,384 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-03 14:20:18,386 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-03 14:20:18,500 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 108 statements into 1 equivalence classes. [2025-03-03 14:20:18,586 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 108 of 108 statements. [2025-03-03 14:20:18,586 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:20:18,586 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:20:18,589 INFO L256 TraceCheckSpWp]: Trace formula consists of 949 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-03 14:20:18,592 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 14:20:18,636 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-03-03 14:20:18,636 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 14:20:18,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [649387163] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:20:18,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 14:20:18,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2025-03-03 14:20:18,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037019845] [2025-03-03 14:20:18,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:20:18,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-03 14:20:18,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:20:18,637 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-03 14:20:18,637 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2025-03-03 14:20:18,637 INFO L87 Difference]: Start difference. First operand 307 states and 469 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (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) [2025-03-03 14:20:18,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:20:18,697 INFO L93 Difference]: Finished difference Result 603 states and 927 transitions. [2025-03-03 14:20:18,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-03 14:20:18,699 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (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 108 [2025-03-03 14:20:18,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:20:18,701 INFO L225 Difference]: With dead ends: 603 [2025-03-03 14:20:18,701 INFO L226 Difference]: Without dead ends: 309 [2025-03-03 14:20:18,702 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2025-03-03 14:20:18,702 INFO L435 NwaCegarLoop]: 363 mSDtfsCounter, 2 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1435 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 [2025-03-03 14:20:18,703 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1435 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 14:20:18,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2025-03-03 14:20:18,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 309. [2025-03-03 14:20:18,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 240 states have (on average 1.5291666666666666) internal successors, (367), 243 states have internal predecessors, (367), 51 states have call successors, (51), 15 states have call predecessors, (51), 17 states have return successors, (57), 50 states have call predecessors, (57), 50 states have call successors, (57) [2025-03-03 14:20:18,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 475 transitions. [2025-03-03 14:20:18,717 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 475 transitions. Word has length 108 [2025-03-03 14:20:18,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:20:18,718 INFO L471 AbstractCegarLoop]: Abstraction has 309 states and 475 transitions. [2025-03-03 14:20:18,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (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) [2025-03-03 14:20:18,718 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 475 transitions. [2025-03-03 14:20:18,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2025-03-03 14:20:18,720 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:20:18,720 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:20:18,729 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-03-03 14:20:18,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:20:18,922 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:20:18,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:20:18,923 INFO L85 PathProgramCache]: Analyzing trace with hash 49650113, now seen corresponding path program 1 times [2025-03-03 14:20:18,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:20:18,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528322929] [2025-03-03 14:20:18,923 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:20:18,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:20:18,939 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 109 statements into 1 equivalence classes. [2025-03-03 14:20:18,947 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 109 of 109 statements. [2025-03-03 14:20:18,947 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:20:18,947 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:20:19,058 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-03-03 14:20:19,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:20:19,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528322929] [2025-03-03 14:20:19,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528322929] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:20:19,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 14:20:19,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-03 14:20:19,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853734317] [2025-03-03 14:20:19,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:20:19,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-03 14:20:19,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:20:19,060 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-03 14:20:19,060 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-03 14:20:19,060 INFO L87 Difference]: Start difference. First operand 309 states and 475 transitions. Second operand has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 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) [2025-03-03 14:20:19,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:20:19,096 INFO L93 Difference]: Finished difference Result 595 states and 918 transitions. [2025-03-03 14:20:19,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-03 14:20:19,097 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 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 109 [2025-03-03 14:20:19,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:20:19,099 INFO L225 Difference]: With dead ends: 595 [2025-03-03 14:20:19,099 INFO L226 Difference]: Without dead ends: 309 [2025-03-03 14:20:19,099 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 [2025-03-03 14:20:19,100 INFO L435 NwaCegarLoop]: 366 mSDtfsCounter, 2 mSDsluCounter, 1087 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1453 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 [2025-03-03 14:20:19,100 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1453 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 14:20:19,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2025-03-03 14:20:19,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 309. [2025-03-03 14:20:19,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 240 states have (on average 1.5291666666666666) internal successors, (367), 243 states have internal predecessors, (367), 51 states have call successors, (51), 15 states have call predecessors, (51), 17 states have return successors, (56), 50 states have call predecessors, (56), 50 states have call successors, (56) [2025-03-03 14:20:19,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 474 transitions. [2025-03-03 14:20:19,115 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 474 transitions. Word has length 109 [2025-03-03 14:20:19,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:20:19,115 INFO L471 AbstractCegarLoop]: Abstraction has 309 states and 474 transitions. [2025-03-03 14:20:19,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 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) [2025-03-03 14:20:19,115 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 474 transitions. [2025-03-03 14:20:19,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2025-03-03 14:20:19,117 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:20:19,117 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:20:19,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-03 14:20:19,117 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:20:19,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:20:19,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1766320275, now seen corresponding path program 2 times [2025-03-03 14:20:19,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:20:19,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012150964] [2025-03-03 14:20:19,117 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-03 14:20:19,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:20:19,132 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 110 statements into 2 equivalence classes. [2025-03-03 14:20:19,137 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 59 of 110 statements. [2025-03-03 14:20:19,137 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-03 14:20:19,137 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:20:19,214 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2025-03-03 14:20:19,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:20:19,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012150964] [2025-03-03 14:20:19,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012150964] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:20:19,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 14:20:19,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-03 14:20:19,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566820422] [2025-03-03 14:20:19,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:20:19,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-03 14:20:19,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:20:19,215 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-03 14:20:19,216 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-03 14:20:19,216 INFO L87 Difference]: Start difference. First operand 309 states and 474 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 6 states have internal predecessors, (66), 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) [2025-03-03 14:20:19,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:20:19,252 INFO L93 Difference]: Finished difference Result 309 states and 474 transitions. [2025-03-03 14:20:19,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-03 14:20:19,252 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 6 states have internal predecessors, (66), 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 110 [2025-03-03 14:20:19,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:20:19,253 INFO L225 Difference]: With dead ends: 309 [2025-03-03 14:20:19,253 INFO L226 Difference]: Without dead ends: 0 [2025-03-03 14:20:19,254 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-03 14:20:19,255 INFO L435 NwaCegarLoop]: 367 mSDtfsCounter, 0 mSDsluCounter, 1826 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2193 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 14:20:19,255 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2193 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 14:20:19,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-03-03 14:20:19,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-03-03 14:20:19,257 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) [2025-03-03 14:20:19,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-03-03 14:20:19,257 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 110 [2025-03-03 14:20:19,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:20:19,257 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-03 14:20:19,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 6 states have internal predecessors, (66), 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) [2025-03-03 14:20:19,257 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-03-03 14:20:19,257 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-03-03 14:20:19,260 INFO L782 garLoopResultBuilder]: Registering result SAFE for location outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-03 14:20:19,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-03 14:20:19,263 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2025-03-03 14:20:19,264 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-03-03 14:20:19,338 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-03 14:20:19,349 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.03 02:20:19 BoogieIcfgContainer [2025-03-03 14:20:19,349 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-03 14:20:19,349 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-03 14:20:19,349 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-03 14:20:19,349 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-03 14:20:19,350 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 02:20:14" (3/4) ... [2025-03-03 14:20:19,351 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-03 14:20:19,356 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure outgoing [2025-03-03 14:20:19,356 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure setClientPrivateKey [2025-03-03 14:20:19,356 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure chuckKeyAdd [2025-03-03 14:20:19,356 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure setEmailTo [2025-03-03 14:20:19,356 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure getEmailTo [2025-03-03 14:20:19,356 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure createClientKeyringEntry [2025-03-03 14:20:19,356 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure generateKeyPair [2025-03-03 14:20:19,356 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure setClientKeyringUser [2025-03-03 14:20:19,356 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure sendEmail [2025-03-03 14:20:19,356 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure setEmailFrom [2025-03-03 14:20:19,356 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure getEmailFrom [2025-03-03 14:20:19,356 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure isReadable [2025-03-03 14:20:19,356 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure queue [2025-03-03 14:20:19,356 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure setClientKeyringPublicKey [2025-03-03 14:20:19,356 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure setClientId [2025-03-03 14:20:19,371 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 71 nodes and edges [2025-03-03 14:20:19,373 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 36 nodes and edges [2025-03-03 14:20:19,374 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2025-03-03 14:20:19,375 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-03 14:20:19,376 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-03 14:20:19,377 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-03 14:20:19,484 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-03 14:20:19,484 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-03 14:20:19,485 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-03 14:20:19,485 INFO L158 Benchmark]: Toolchain (without parser) took 6069.39ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 132.6MB in the beginning and 143.3MB in the end (delta: -10.7MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. [2025-03-03 14:20:19,485 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 201.3MB. Free memory is still 126.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 14:20:19,486 INFO L158 Benchmark]: CACSL2BoogieTranslator took 608.80ms. Allocated memory is still 167.8MB. Free memory was 132.6MB in the beginning and 96.0MB in the end (delta: 36.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-03-03 14:20:19,486 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.92ms. Allocated memory is still 167.8MB. Free memory was 96.0MB in the beginning and 91.4MB in the end (delta: 4.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-03 14:20:19,486 INFO L158 Benchmark]: Boogie Preprocessor took 65.63ms. Allocated memory is still 167.8MB. Free memory was 91.4MB in the beginning and 86.7MB in the end (delta: 4.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-03 14:20:19,486 INFO L158 Benchmark]: IcfgBuilder took 799.52ms. Allocated memory is still 167.8MB. Free memory was 86.7MB in the beginning and 110.2MB in the end (delta: -23.5MB). Peak memory consumption was 50.4MB. Max. memory is 16.1GB. [2025-03-03 14:20:19,486 INFO L158 Benchmark]: TraceAbstraction took 4406.91ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 109.4MB in the beginning and 157.0MB in the end (delta: -47.6MB). Peak memory consumption was 73.6MB. Max. memory is 16.1GB. [2025-03-03 14:20:19,486 INFO L158 Benchmark]: Witness Printer took 135.34ms. Allocated memory is still 201.3MB. Free memory was 157.0MB in the beginning and 143.3MB in the end (delta: 13.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-03 14:20:19,488 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 201.3MB. Free memory is still 126.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 608.80ms. Allocated memory is still 167.8MB. Free memory was 132.6MB in the beginning and 96.0MB in the end (delta: 36.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.92ms. Allocated memory is still 167.8MB. Free memory was 96.0MB in the beginning and 91.4MB in the end (delta: 4.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.63ms. Allocated memory is still 167.8MB. Free memory was 91.4MB in the beginning and 86.7MB in the end (delta: 4.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 799.52ms. Allocated memory is still 167.8MB. Free memory was 86.7MB in the beginning and 110.2MB in the end (delta: -23.5MB). Peak memory consumption was 50.4MB. Max. memory is 16.1GB. * TraceAbstraction took 4406.91ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 109.4MB in the beginning and 157.0MB in the end (delta: -47.6MB). Peak memory consumption was 73.6MB. Max. memory is 16.1GB. * Witness Printer took 135.34ms. Allocated memory is still 201.3MB. Free memory was 157.0MB in the beginning and 143.3MB in the end (delta: 13.7MB). Peak memory consumption was 8.4MB. 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,"wsllib_check.i","") [48] - GenericResultAtLocation [Line: 57]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [57] - GenericResultAtLocation [Line: 384]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [384] - GenericResultAtLocation [Line: 1455]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1455] - GenericResultAtLocation [Line: 1686]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1686] - GenericResultAtLocation [Line: 1721]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1721] - GenericResultAtLocation [Line: 1738]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1738] - GenericResultAtLocation [Line: 2146]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2146] - GenericResultAtLocation [Line: 2512]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2512] - GenericResultAtLocation [Line: 2576]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"DecryptForward_spec.i","") [2576] - GenericResultAtLocation [Line: 2595]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2595] * 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: 53]: 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 16 procedures, 257 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.3s, OverallIterations: 7, 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, 8362 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5765 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 152 IncrementalHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 2597 mSDtfsCounter, 152 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 552 GetRequests, 518 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=309occurred in iteration=5, InterpolantAutomatonStates: 30, 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, 7 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 1251 NumberOfCodeBlocks, 1200 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 1239 ConstructedInterpolants, 0 QuantifiedInterpolants, 1348 SizeOfPredicates, 3 NumberOfNonLiveVariables, 4675 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 12 InterpolantComputations, 7 PerfectInterpolantSequences, 383/401 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! [2025-03-03 14:20:19,501 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE