./Ultimate.py --spec ../../sv-benchmarks/c/Systems_DeviceDriversLinux64_ReachSafety.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--gpu--drm--i915--i915.ko-entry_point_true-unreach-call.cil.out.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_1277a0c9-5ccb-4409-a9ef-5425de03f05c/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1277a0c9-5ccb-4409-a9ef-5425de03f05c/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1277a0c9-5ccb-4409-a9ef-5425de03f05c/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1277a0c9-5ccb-4409-a9ef-5425de03f05c/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--gpu--drm--i915--i915.ko-entry_point_true-unreach-call.cil.out.c -s /tmp/vcloud-vcloud-master/worker/working_dir_1277a0c9-5ccb-4409-a9ef-5425de03f05c/bin-2019/utaipan/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1277a0c9-5ccb-4409-a9ef-5425de03f05c/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 0e4b05f56a8a38a697b137a8ed320d85c33862b5 ............................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 17:25:49,742 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 17:25:49,743 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 17:25:49,750 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 17:25:49,750 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 17:25:49,751 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 17:25:49,751 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 17:25:49,752 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 17:25:49,754 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 17:25:49,754 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 17:25:49,755 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 17:25:49,755 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 17:25:49,755 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 17:25:49,756 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 17:25:49,757 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 17:25:49,757 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 17:25:49,758 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 17:25:49,759 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 17:25:49,760 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 17:25:49,761 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 17:25:49,762 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 17:25:49,763 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 17:25:49,764 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 17:25:49,765 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 17:25:49,765 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 17:25:49,765 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 17:25:49,766 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 17:25:49,767 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 17:25:49,767 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 17:25:49,768 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 17:25:49,768 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 17:25:49,769 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 17:25:49,769 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 17:25:49,769 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 17:25:49,770 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 17:25:49,770 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 17:25:49,770 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1277a0c9-5ccb-4409-a9ef-5425de03f05c/bin-2019/utaipan/config/svcomp-Reach-64bit-Taipan_Default.epf [2018-11-18 17:25:49,778 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 17:25:49,778 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 17:25:49,779 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 17:25:49,779 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 17:25:49,779 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 17:25:49,779 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 17:25:49,780 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 17:25:49,780 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 17:25:49,780 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 17:25:49,780 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 17:25:49,780 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-18 17:25:49,780 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 17:25:49,780 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 17:25:49,780 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 17:25:49,781 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 17:25:49,781 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 17:25:49,781 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 17:25:49,781 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 17:25:49,781 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 17:25:49,781 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 17:25:49,781 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 17:25:49,782 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 17:25:49,782 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 17:25:49,782 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 17:25:49,782 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 17:25:49,782 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 17:25:49,782 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 17:25:49,782 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 17:25:49,782 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 17:25:49,782 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 17:25:49,783 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 17:25:49,783 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 17:25:49,783 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 17:25:49,783 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 17:25:49,783 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 17:25:49,783 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-18 17:25:49,783 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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-vcloud-master/worker/working_dir_1277a0c9-5ccb-4409-a9ef-5425de03f05c/bin-2019/utaipan 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 ! call(__VERIFIER_error())) ) 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 -> 0e4b05f56a8a38a697b137a8ed320d85c33862b5 [2018-11-18 17:25:49,806 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 17:25:49,815 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 17:25:49,818 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 17:25:49,819 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 17:25:49,819 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 17:25:49,820 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1277a0c9-5ccb-4409-a9ef-5425de03f05c/bin-2019/utaipan/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--gpu--drm--i915--i915.ko-entry_point_true-unreach-call.cil.out.c [2018-11-18 17:25:49,861 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1277a0c9-5ccb-4409-a9ef-5425de03f05c/bin-2019/utaipan/data/3fc6c6565/c2bde2a405ce4e218920d76b4a065a00/FLAG2ef859a04 [2018-11-18 17:25:51,685 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 17:25:51,686 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1277a0c9-5ccb-4409-a9ef-5425de03f05c/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--gpu--drm--i915--i915.ko-entry_point_true-unreach-call.cil.out.c [2018-11-18 17:25:51,941 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1277a0c9-5ccb-4409-a9ef-5425de03f05c/bin-2019/utaipan/data/3fc6c6565/c2bde2a405ce4e218920d76b4a065a00/FLAG2ef859a04 [2018-11-18 17:25:52,341 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1277a0c9-5ccb-4409-a9ef-5425de03f05c/bin-2019/utaipan/data/3fc6c6565/c2bde2a405ce4e218920d76b4a065a00 [2018-11-18 17:25:52,343 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 17:25:52,344 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 17:25:52,344 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 17:25:52,344 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 17:25:52,347 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 17:25:52,348 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:25:52" (1/1) ... [2018-11-18 17:25:52,350 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44c12901 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:25:52, skipping insertion in model container [2018-11-18 17:25:52,350 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:25:52" (1/1) ... [2018-11-18 17:25:52,358 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 17:25:53,099 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 17:26:29,567 ERROR L311 MainTranslator]: Unsupported Syntax: we need to generalize this to nested and/or variable length arrays [2018-11-18 17:26:29,567 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5e4d9807 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:26:29, skipping insertion in model container [2018-11-18 17:26:29,567 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 17:26:29,568 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2018-11-18 17:26:29,568 INFO L168 Benchmark]: Toolchain (without parser) took 37224.88 ms. Allocated memory was 1.0 GB in the beginning and 2.2 GB in the end (delta: 1.2 GB). Free memory was 878.5 MB in the beginning and 1.6 GB in the end (delta: -762.4 MB). Peak memory consumption was 1.2 GB. Max. memory is 11.5 GB. [2018-11-18 17:26:29,570 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:26:29,570 INFO L168 Benchmark]: CACSL2BoogieTranslator took 37223.34 ms. Allocated memory was 1.0 GB in the beginning and 2.2 GB in the end (delta: 1.2 GB). Free memory was 878.5 MB in the beginning and 1.6 GB in the end (delta: -762.4 MB). Peak memory consumption was 1.2 GB. Max. memory is 11.5 GB. [2018-11-18 17:26:29,571 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 37223.34 ms. Allocated memory was 1.0 GB in the beginning and 2.2 GB in the end (delta: 1.2 GB). Free memory was 878.5 MB in the beginning and 1.6 GB in the end (delta: -762.4 MB). Peak memory consumption was 1.2 GB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 23661]: Unsupported Syntax we need to generalize this to nested and/or variable length arrays RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...