./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem08_label18.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem08_label18.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 fb696ee403e162ffc39f4b517646ecc006a80a9fd619ff91a6fec980fa390bc3 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 01:28:17,074 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 01:28:17,126 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-08 01:28:17,131 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 01:28:17,131 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 01:28:17,149 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 01:28:17,151 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 01:28:17,151 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 01:28:17,151 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 01:28:17,151 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 01:28:17,152 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 01:28:17,152 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 01:28:17,152 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 01:28:17,152 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 01:28:17,152 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 01:28:17,153 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 01:28:17,153 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 01:28:17,153 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 01:28:17,153 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 01:28:17,153 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 01:28:17,153 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 01:28:17,153 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 01:28:17,153 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 01:28:17,153 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 01:28:17,153 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 01:28:17,153 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 01:28:17,153 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 01:28:17,153 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 01:28:17,153 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 01:28:17,153 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 01:28:17,154 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 01:28:17,154 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 01:28:17,154 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 01:28:17,154 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 01:28:17,154 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 01:28:17,154 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 01:28:17,154 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 01:28:17,154 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 01:28:17,154 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 01:28:17,154 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 01:28:17,154 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 01:28:17,154 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 01:28:17,154 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 01:28:17,154 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 -> fb696ee403e162ffc39f4b517646ecc006a80a9fd619ff91a6fec980fa390bc3 [2025-03-08 01:28:17,348 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 01:28:17,354 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 01:28:17,355 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 01:28:17,356 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 01:28:17,356 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 01:28:17,357 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem08_label18.c [2025-03-08 01:28:18,412 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65a12dd80/67805fbef1194859a2f0fa7e20dc68e1/FLAG83ee31b89 [2025-03-08 01:28:20,288 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 01:28:20,288 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem08_label18.c [2025-03-08 01:28:20,455 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65a12dd80/67805fbef1194859a2f0fa7e20dc68e1/FLAG83ee31b89 [2025-03-08 01:28:20,465 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65a12dd80/67805fbef1194859a2f0fa7e20dc68e1 [2025-03-08 01:28:20,466 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 01:28:20,467 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 01:28:20,468 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 01:28:20,468 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 01:28:20,472 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 01:28:20,472 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 01:28:20" (1/1) ... [2025-03-08 01:28:20,473 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17c5f70e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 01:28:20, skipping insertion in model container [2025-03-08 01:28:20,473 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 01:28:20" (1/1) ... [2025-03-08 01:28:21,213 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 01:28:35,213 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/eca-rers2012/Problem08_label18.c[5715574,5715587] [2025-03-08 01:28:35,288 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 01:28:35,297 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 01:28:42,091 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/eca-rers2012/Problem08_label18.c[5715574,5715587] [2025-03-08 01:28:42,095 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 01:28:45,423 INFO L204 MainTranslator]: Completed translation [2025-03-08 01:28:45,425 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 01:28:45 WrapperNode [2025-03-08 01:28:45,429 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 01:28:45,430 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 01:28:45,430 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 01:28:45,430 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 01:28:45,444 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 01:28:45" (1/1) ... [2025-03-08 01:28:46,340 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 01:28:45" (1/1) ... [2025-03-08 01:28:49,659 INFO L138 Inliner]: procedures = 95, calls = 89, calls flagged for inlining = 84, calls inlined = 84, statements flattened = 184367 [2025-03-08 01:28:49,659 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 01:28:49,660 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 01:28:49,660 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 01:28:49,661 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 01:28:49,667 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 01:28:45" (1/1) ... [2025-03-08 01:28:49,667 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 01:28:45" (1/1) ... [2025-03-08 01:28:50,271 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 01:28:45" (1/1) ... [2025-03-08 01:28:50,793 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-08 01:28:50,793 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 01:28:45" (1/1) ... [2025-03-08 01:28:50,793 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 01:28:45" (1/1) ... [2025-03-08 01:28:52,050 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 01:28:45" (1/1) ... [2025-03-08 01:28:52,145 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 01:28:45" (1/1) ... [2025-03-08 01:28:52,258 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 01:28:45" (1/1) ... [2025-03-08 01:28:52,352 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 01:28:45" (1/1) ... [2025-03-08 01:28:52,936 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 01:28:52,937 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 01:28:52,937 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 01:28:52,937 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 01:28:52,938 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 01:28:45" (1/1) ... [2025-03-08 01:28:52,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 01:28:52,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 01:28:52,965 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-08 01:28:52,969 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-08 01:28:52,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 01:28:52,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 01:28:52,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 01:28:52,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 01:28:53,125 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 01:28:53,127 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation