./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2018/Problem18.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b23777e-e478-4548-a40e-625a2c4e4145/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b23777e-e478-4548-a40e-625a2c4e4145/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b23777e-e478-4548-a40e-625a2c4e4145/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b23777e-e478-4548-a40e-625a2c4e4145/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2018/Problem18.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b23777e-e478-4548-a40e-625a2c4e4145/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b23777e-e478-4548-a40e-625a2c4e4145/bin/uautomizer-verify-aQ6SnzHsRB --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 fdc120a35f3e4d083158deea32322882faa73723d02c89f45ae81ad994f702e9 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 23:23:33,918 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 23:23:34,027 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b23777e-e478-4548-a40e-625a2c4e4145/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-27 23:23:34,035 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 23:23:34,035 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 23:23:34,066 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 23:23:34,067 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 23:23:34,068 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 23:23:34,068 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 23:23:34,068 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 23:23:34,068 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 23:23:34,068 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 23:23:34,069 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 23:23:34,069 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 23:23:34,069 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 23:23:34,070 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 23:23:34,070 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 23:23:34,070 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 23:23:34,070 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 23:23:34,070 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 23:23:34,070 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 23:23:34,070 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 23:23:34,071 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 23:23:34,071 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 23:23:34,071 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 23:23:34,071 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 23:23:34,071 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 23:23:34,071 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 23:23:34,071 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 23:23:34,072 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:23:34,072 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:23:34,072 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:23:34,072 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:23:34,072 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 23:23:34,072 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:23:34,072 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:23:34,073 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:23:34,073 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:23:34,073 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 23:23:34,073 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 23:23:34,073 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 23:23:34,073 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 23:23:34,073 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 23:23:34,073 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 23:23:34,074 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 23:23:34,074 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 23:23:34,074 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 23:23:34,074 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 23:23:34,074 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b23777e-e478-4548-a40e-625a2c4e4145/bin/uautomizer-verify-aQ6SnzHsRB 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 -> fdc120a35f3e4d083158deea32322882faa73723d02c89f45ae81ad994f702e9 [2024-11-27 23:23:34,469 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 23:23:34,489 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 23:23:34,493 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 23:23:34,495 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 23:23:34,496 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 23:23:34,498 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b23777e-e478-4548-a40e-625a2c4e4145/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/eca-rers2018/Problem18.c [2024-11-27 23:23:38,111 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b23777e-e478-4548-a40e-625a2c4e4145/bin/uautomizer-verify-aQ6SnzHsRB/data/a2f0b7637/220f9f7bceef47cf9f842ba15c4d464e/FLAG2bea7508b [2024-11-27 23:23:50,176 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 23:23:50,177 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b23777e-e478-4548-a40e-625a2c4e4145/sv-benchmarks/c/eca-rers2018/Problem18.c [2024-11-27 23:23:52,125 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b23777e-e478-4548-a40e-625a2c4e4145/bin/uautomizer-verify-aQ6SnzHsRB/data/a2f0b7637/220f9f7bceef47cf9f842ba15c4d464e/FLAG2bea7508b [2024-11-27 23:23:52,331 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b23777e-e478-4548-a40e-625a2c4e4145/bin/uautomizer-verify-aQ6SnzHsRB/data/a2f0b7637/220f9f7bceef47cf9f842ba15c4d464e [2024-11-27 23:23:52,334 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 23:23:52,336 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 23:23:52,337 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 23:23:52,337 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 23:23:52,343 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 23:23:52,344 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:23:52" (1/1) ... [2024-11-27 23:23:52,345 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bb18eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:23:52, skipping insertion in model container [2024-11-27 23:23:52,346 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:23:52" (1/1) ... [2024-11-27 23:23:56,606 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 23:24:00,179 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b23777e-e478-4548-a40e-625a2c4e4145/sv-benchmarks/c/eca-rers2018/Problem18.c[778,791] [2024-11-27 23:24:00,735 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b23777e-e478-4548-a40e-625a2c4e4145/sv-benchmarks/c/eca-rers2018/Problem18.c[817,830]