./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.firewire_tree.5.prop2-back-serstep.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.firewire_tree.5.prop2-back-serstep.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 64bit --witnessprinter.graph.data.programhash 6e9daf1ad2cea1d973bc45eb90edeaa86b63f18f47a0ec90e282d7fa526a2513 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 08:42:21,803 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 08:42:21,860 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-08 08:42:21,867 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 08:42:21,869 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 08:42:21,891 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 08:42:21,891 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 08:42:21,891 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 08:42:21,892 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 08:42:21,892 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 08:42:21,893 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 08:42:21,893 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 08:42:21,893 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 08:42:21,893 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 08:42:21,893 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 08:42:21,894 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 08:42:21,894 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 08:42:21,894 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 08:42:21,894 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 08:42:21,894 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 08:42:21,894 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 08:42:21,894 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 08:42:21,894 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 08:42:21,894 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 08:42:21,894 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 08:42:21,894 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 08:42:21,894 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 08:42:21,894 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 08:42:21,894 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 08:42:21,894 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 08:42:21,895 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 08:42:21,895 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 08:42:21,895 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 08:42:21,895 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 08:42:21,895 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 08:42:21,895 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 08:42:21,895 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 08:42:21,896 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 08:42:21,896 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 08:42:21,896 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 08:42:21,896 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6e9daf1ad2cea1d973bc45eb90edeaa86b63f18f47a0ec90e282d7fa526a2513 [2025-03-08 08:42:22,092 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 08:42:22,101 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 08:42:22,102 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 08:42:22,103 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 08:42:22,103 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 08:42:22,104 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.firewire_tree.5.prop2-back-serstep.c [2025-03-08 08:42:23,229 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3a9cd0a4/be1213c035bb41f29ed6b9edb131fa57/FLAG78cec4c32 [2025-03-08 08:42:24,189 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 08:42:24,190 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.firewire_tree.5.prop2-back-serstep.c [2025-03-08 08:42:24,301 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3a9cd0a4/be1213c035bb41f29ed6b9edb131fa57/FLAG78cec4c32 [2025-03-08 08:42:24,840 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3a9cd0a4/be1213c035bb41f29ed6b9edb131fa57 [2025-03-08 08:42:24,842 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 08:42:24,844 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 08:42:24,845 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 08:42:24,845 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 08:42:24,848 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 08:42:24,848 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 08:42:24" (1/1) ... [2025-03-08 08:42:24,855 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4333af9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 08:42:24, skipping insertion in model container [2025-03-08 08:42:24,855 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 08:42:24" (1/1) ... [2025-03-08 08:42:25,431 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 08:42:26,026 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/hardware-verification-bv/btor2c-lazyMod.firewire_tree.5.prop2-back-serstep.c[1181,1194] [2025-03-08 08:42:29,538 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 08:42:29,556 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 08:42:29,567 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/hardware-verification-bv/btor2c-lazyMod.firewire_tree.5.prop2-back-serstep.c[1181,1194] [2025-03-08 08:42:32,180 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 08:42:32,189 INFO L204 MainTranslator]: Completed translation [2025-03-08 08:42:32,190 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 08:42:32 WrapperNode [2025-03-08 08:42:32,190 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 08:42:32,191 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 08:42:32,191 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 08:42:32,191 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 08:42:32,196 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 08:42:32" (1/1) ... [2025-03-08 08:42:33,201 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 08:42:32" (1/1) ... [2025-03-08 08:42:50,593 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 278163 [2025-03-08 08:42:50,593 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 08:42:50,594 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 08:42:50,594 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 08:42:50,594 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 08:42:50,600 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 08:42:32" (1/1) ... [2025-03-08 08:42:50,600 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 08:42:32" (1/1) ... [2025-03-08 08:42:56,342 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 08:42:32" (1/1) ...