./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-coreutils/instrumented_interval_df_comb.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e7bb482b 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_228c31d1-82cc-4163-af82-6771f4c5413e/bin/utaipan-verify-FOvIYxoinp/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228c31d1-82cc-4163-af82-6771f4c5413e/bin/utaipan-verify-FOvIYxoinp/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228c31d1-82cc-4163-af82-6771f4c5413e/bin/utaipan-verify-FOvIYxoinp/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228c31d1-82cc-4163-af82-6771f4c5413e/bin/utaipan-verify-FOvIYxoinp/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-coreutils/instrumented_interval_df_comb.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228c31d1-82cc-4163-af82-6771f4c5413e/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228c31d1-82cc-4163-af82-6771f4c5413e/bin/utaipan-verify-FOvIYxoinp --witnessprinter.witness.filename witness.graphml --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 32c6dd370800ca1893cdc6d4e98da37987d424e4d1b7661d71e1ba91eb2ff544 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 21:02:11,197 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 21:02:11,330 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228c31d1-82cc-4163-af82-6771f4c5413e/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Default.epf [2023-11-06 21:02:11,342 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 21:02:11,343 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 21:02:11,386 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 21:02:11,387 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 21:02:11,387 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 21:02:11,389 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 21:02:11,396 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 21:02:11,397 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-06 21:02:11,397 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-06 21:02:11,398 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-06 21:02:11,400 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-06 21:02:11,401 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-06 21:02:11,401 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-06 21:02:11,402 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-06 21:02:11,404 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-06 21:02:11,405 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-06 21:02:11,405 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-06 21:02:11,406 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-06 21:02:11,407 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-06 21:02:11,407 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 21:02:11,408 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 21:02:11,409 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 21:02:11,409 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 21:02:11,410 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 21:02:11,410 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 21:02:11,411 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 21:02:11,411 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 21:02:11,413 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 21:02:11,413 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 21:02:11,413 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 21:02:11,414 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 21:02:11,414 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 21:02:11,414 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 21:02:11,415 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:02:11,415 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 21:02:11,415 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 21:02:11,415 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-06 21:02:11,416 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 21:02:11,416 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-06 21:02:11,416 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 21:02:11,417 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_228c31d1-82cc-4163-af82-6771f4c5413e/bin/utaipan-verify-FOvIYxoinp/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228c31d1-82cc-4163-af82-6771f4c5413e/bin/utaipan-verify-FOvIYxoinp Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 32c6dd370800ca1893cdc6d4e98da37987d424e4d1b7661d71e1ba91eb2ff544 [2023-11-06 21:02:11,727 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 21:02:11,757 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 21:02:11,760 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 21:02:11,761 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 21:02:11,762 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 21:02:11,763 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228c31d1-82cc-4163-af82-6771f4c5413e/bin/utaipan-verify-FOvIYxoinp/../../sv-benchmarks/c/goblint-coreutils/instrumented_interval_df_comb.i [2023-11-06 21:02:14,770 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 21:02:16,804 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 21:02:16,806 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228c31d1-82cc-4163-af82-6771f4c5413e/sv-benchmarks/c/goblint-coreutils/instrumented_interval_df_comb.i [2023-11-06 21:02:17,061 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228c31d1-82cc-4163-af82-6771f4c5413e/bin/utaipan-verify-FOvIYxoinp/data/0a3bdec17/ae5aff567ac747b189db5b88555edd1b/FLAG0e9a9cde3 [2023-11-06 21:02:17,083 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228c31d1-82cc-4163-af82-6771f4c5413e/bin/utaipan-verify-FOvIYxoinp/data/0a3bdec17/ae5aff567ac747b189db5b88555edd1b [2023-11-06 21:02:17,089 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 21:02:17,091 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 21:02:17,093 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 21:02:17,093 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 21:02:17,098 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 21:02:17,099 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:02:17" (1/1) ... [2023-11-06 21:02:17,100 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72499740 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:02:17, skipping insertion in model container [2023-11-06 21:02:17,101 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:02:17" (1/1) ... [2023-11-06 21:02:17,813 INFO L177 MainTranslator]: Built tables and reachable declarations