./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/coreutils-v8.31/csplit_3args_ok.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96ae9f98-300d-44fb-92bc-8362f3ac5e06/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96ae9f98-300d-44fb-92bc-8362f3ac5e06/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96ae9f98-300d-44fb-92bc-8362f3ac5e06/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96ae9f98-300d-44fb-92bc-8362f3ac5e06/bin/uautomizer-verify-bycVGegfSx/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/coreutils-v8.31/csplit_3args_ok.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96ae9f98-300d-44fb-92bc-8362f3ac5e06/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96ae9f98-300d-44fb-92bc-8362f3ac5e06/bin/uautomizer-verify-bycVGegfSx --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b1bb52c2c8358e3c2538f1e04d3a99b49dbe4f01f80540d7dd49d2d86205e273 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:21:13,638 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:21:13,724 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96ae9f98-300d-44fb-92bc-8362f3ac5e06/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2023-11-21 22:21:13,730 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:21:13,731 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:21:13,757 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:21:13,758 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:21:13,759 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:21:13,760 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:21:13,760 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:21:13,761 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:21:13,762 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:21:13,762 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:21:13,763 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:21:13,764 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:21:13,764 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:21:13,765 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-21 22:21:13,765 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-21 22:21:13,766 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-21 22:21:13,766 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:21:13,767 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 22:21:13,767 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:21:13,768 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:21:13,768 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:21:13,769 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:21:13,769 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:21:13,770 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:21:13,770 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:21:13,771 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:21:13,771 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:21:13,772 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:21:13,772 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:21:13,773 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:21:13,773 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:21:13,774 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:21:13,774 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:21:13,774 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96ae9f98-300d-44fb-92bc-8362f3ac5e06/bin/uautomizer-verify-bycVGegfSx/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96ae9f98-300d-44fb-92bc-8362f3ac5e06/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1bb52c2c8358e3c2538f1e04d3a99b49dbe4f01f80540d7dd49d2d86205e273 [2023-11-21 22:21:14,016 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:21:14,039 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:21:14,042 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:21:14,044 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:21:14,045 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:21:14,046 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96ae9f98-300d-44fb-92bc-8362f3ac5e06/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/coreutils-v8.31/csplit_3args_ok.c [2023-11-21 22:21:17,339 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:21:21,738 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:21:21,739 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96ae9f98-300d-44fb-92bc-8362f3ac5e06/sv-benchmarks/c/coreutils-v8.31/csplit_3args_ok.c [2023-11-21 22:21:22,196 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96ae9f98-300d-44fb-92bc-8362f3ac5e06/bin/uautomizer-verify-bycVGegfSx/data/5bb323693/5c6597edf3ab4675945123b1c6b9ac3e/FLAGbb334b382 [2023-11-21 22:21:22,209 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96ae9f98-300d-44fb-92bc-8362f3ac5e06/bin/uautomizer-verify-bycVGegfSx/data/5bb323693/5c6597edf3ab4675945123b1c6b9ac3e [2023-11-21 22:21:22,212 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:21:22,214 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:21:22,215 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:21:22,215 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:21:22,220 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:21:22,221 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:21:22" (1/1) ... [2023-11-21 22:21:22,222 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6852cf47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:22, skipping insertion in model container [2023-11-21 22:21:22,223 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:21:22" (1/1) ... [2023-11-21 22:21:33,888 INFO L177 MainTranslator]: Built tables and reachable declarations