./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/coreutils-v8.31/ln_3args_klee-sa_ko_158_csa_uaf.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14d72fca-5ac3-45c7-be71-63f7c22c563b/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14d72fca-5ac3-45c7-be71-63f7c22c563b/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14d72fca-5ac3-45c7-be71-63f7c22c563b/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14d72fca-5ac3-45c7-be71-63f7c22c563b/bin/ukojak-verify-afCqCEvfdi/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/coreutils-v8.31/ln_3args_klee-sa_ko_158_csa_uaf.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14d72fca-5ac3-45c7-be71-63f7c22c563b/bin/ukojak-verify-afCqCEvfdi/config/svcomp-DerefFreeMemtrack-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14d72fca-5ac3-45c7-be71-63f7c22c563b/bin/ukojak-verify-afCqCEvfdi --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 Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e390cc8d1b084cf54c04d0491786ea5f1171cb1a858df432c752212f0283b199 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:55:58,989 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:55:59,115 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14d72fca-5ac3-45c7-be71-63f7c22c563b/bin/ukojak-verify-afCqCEvfdi/config/svcomp-DerefFreeMemtrack-64bit-Kojak_Default.epf [2023-11-24 22:55:59,125 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:55:59,126 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 22:55:59,173 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:55:59,174 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:55:59,175 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:55:59,176 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:55:59,181 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:55:59,183 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:55:59,183 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-24 22:55:59,184 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-24 22:55:59,185 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-24 22:55:59,186 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:55:59,186 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 22:55:59,187 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:55:59,187 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:55:59,188 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:55:59,188 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:55:59,189 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:55:59,190 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:55:59,191 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:55:59,191 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:55:59,191 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 22:55:59,192 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:55:59,192 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_14d72fca-5ac3-45c7-be71-63f7c22c563b/bin/ukojak-verify-afCqCEvfdi/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14d72fca-5ac3-45c7-be71-63f7c22c563b/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e390cc8d1b084cf54c04d0491786ea5f1171cb1a858df432c752212f0283b199 [2023-11-24 22:55:59,509 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:55:59,556 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:55:59,560 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:55:59,561 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:55:59,562 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:55:59,563 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14d72fca-5ac3-45c7-be71-63f7c22c563b/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/coreutils-v8.31/ln_3args_klee-sa_ko_158_csa_uaf.c [2023-11-24 22:56:02,725 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:56:06,800 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:56:06,801 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14d72fca-5ac3-45c7-be71-63f7c22c563b/sv-benchmarks/c/coreutils-v8.31/ln_3args_klee-sa_ko_158_csa_uaf.c [2023-11-24 22:56:07,306 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14d72fca-5ac3-45c7-be71-63f7c22c563b/bin/ukojak-verify-afCqCEvfdi/data/8daf6281b/49463aa5aaff4cdb985ed6debab4f273/FLAGf1ffa978e [2023-11-24 22:56:07,324 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14d72fca-5ac3-45c7-be71-63f7c22c563b/bin/ukojak-verify-afCqCEvfdi/data/8daf6281b/49463aa5aaff4cdb985ed6debab4f273 [2023-11-24 22:56:07,329 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:56:07,333 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:56:07,337 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:56:07,337 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:56:07,343 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:56:07,344 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:56:07" (1/1) ... [2023-11-24 22:56:07,345 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dbef685 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:56:07, skipping insertion in model container [2023-11-24 22:56:07,345 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:56:07" (1/1) ... [2023-11-24 22:56:19,189 INFO L177 MainTranslator]: Built tables and reachable declarations