./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread/stack-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c6eb4584 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread/stack-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 56b20b6796faad8ab2b7905f19aea09fce4f4ac8 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.1.24-c6eb458-m [2019-11-16 21:30:08,787 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-16 21:30:08,791 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-16 21:30:08,821 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-16 21:30:08,823 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-16 21:30:08,825 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-16 21:30:08,828 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-16 21:30:08,847 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-16 21:30:08,856 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-16 21:30:08,862 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-16 21:30:08,866 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-16 21:30:08,871 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-16 21:30:08,880 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-16 21:30:08,885 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-16 21:30:08,891 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-16 21:30:08,893 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-16 21:30:08,897 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-16 21:30:08,899 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-16 21:30:08,904 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-16 21:30:08,916 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-16 21:30:08,922 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-16 21:30:08,925 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-16 21:30:08,930 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-16 21:30:08,933 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-16 21:30:08,943 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-16 21:30:08,943 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-16 21:30:08,944 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-16 21:30:08,946 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-16 21:30:08,948 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-16 21:30:08,949 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-16 21:30:08,951 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-16 21:30:08,952 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-16 21:30:08,953 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-16 21:30:08,956 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-16 21:30:08,960 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-16 21:30:08,961 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-16 21:30:08,963 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-16 21:30:08,965 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-16 21:30:08,965 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-16 21:30:08,966 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-16 21:30:08,972 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-16 21:30:08,973 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-16 21:30:09,009 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-16 21:30:09,014 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-16 21:30:09,017 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-16 21:30:09,017 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-16 21:30:09,018 INFO L138 SettingsManager]: * Use SBE=true [2019-11-16 21:30:09,018 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-16 21:30:09,019 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-16 21:30:09,022 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-16 21:30:09,022 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-16 21:30:09,022 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-16 21:30:09,024 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-16 21:30:09,024 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-16 21:30:09,025 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-16 21:30:09,025 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-16 21:30:09,026 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-16 21:30:09,026 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-16 21:30:09,029 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-16 21:30:09,029 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-16 21:30:09,030 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-16 21:30:09,030 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-16 21:30:09,030 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-16 21:30:09,030 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-16 21:30:09,031 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-16 21:30:09,031 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-16 21:30:09,031 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-16 21:30:09,034 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-16 21:30:09,034 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-16 21:30:09,034 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-16 21:30:09,035 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> 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 -> 56b20b6796faad8ab2b7905f19aea09fce4f4ac8 [2019-11-16 21:30:09,586 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-16 21:30:09,614 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-16 21:30:09,622 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-16 21:30:09,627 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-16 21:30:09,628 INFO L275 PluginConnector]: CDTParser initialized [2019-11-16 21:30:09,632 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread/stack-2.i [2019-11-16 21:30:09,794 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b132e8e7/f2f5e6ffff954fcab55b6671d36cb56e/FLAGa29a08f8f [2019-11-16 21:30:11,010 INFO L306 CDTParser]: Found 1 translation units. [2019-11-16 21:30:11,011 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/stack-2.i [2019-11-16 21:30:11,053 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b132e8e7/f2f5e6ffff954fcab55b6671d36cb56e/FLAGa29a08f8f [2019-11-16 21:30:11,551 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b132e8e7/f2f5e6ffff954fcab55b6671d36cb56e [2019-11-16 21:30:11,555 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-16 21:30:11,557 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-11-16 21:30:11,567 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-16 21:30:11,568 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-16 21:30:11,572 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-16 21:30:11,573 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:30:11" (1/1) ... [2019-11-16 21:30:11,576 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77a330f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:30:11, skipping insertion in model container [2019-11-16 21:30:11,577 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:30:11" (1/1) ... [2019-11-16 21:30:11,593 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-16 21:30:11,710 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-16 21:30:12,845 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 21:30:12,889 INFO L188 MainTranslator]: Completed pre-run [2019-11-16 21:30:13,050 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 21:30:13,451 INFO L192 MainTranslator]: Completed translation [2019-11-16 21:30:13,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:30:13 WrapperNode [2019-11-16 21:30:13,456 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-16 21:30:13,457 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-16 21:30:13,457 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-16 21:30:13,458 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-16 21:30:13,476 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:30:13" (1/1) ... [2019-11-16 21:30:13,551 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:30:13" (1/1) ... [2019-11-16 21:30:13,637 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-16 21:30:13,639 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-16 21:30:13,642 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-16 21:30:13,642 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-16 21:30:13,662 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:30:13" (1/1) ... [2019-11-16 21:30:13,666 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:30:13" (1/1) ... [2019-11-16 21:30:13,687 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:30:13" (1/1) ... [2019-11-16 21:30:13,691 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:30:13" (1/1) ... [2019-11-16 21:30:13,715 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:30:13" (1/1) ... [2019-11-16 21:30:13,729 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:30:13" (1/1) ... [2019-11-16 21:30:13,741 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:30:13" (1/1) ... [2019-11-16 21:30:13,751 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-16 21:30:13,765 INFO L168 Benchmark]: Toolchain (without parser) took 2200.46 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 961.7 MB in the beginning and 933.6 MB in the end (delta: 28.1 MB). Peak memory consumption was 28.1 MB. Max. memory is 12.5 GB. [2019-11-16 21:30:13,767 INFO L168 Benchmark]: CDTParser took 0.43 ms. Allocated memory is still 1.0 GB. Free memory is still 988.9 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-16 21:30:13,770 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1889.28 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 961.7 MB in the beginning and 939.4 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.4 MB. Max. memory is 12.5 GB. [2019-11-16 21:30:13,776 INFO L168 Benchmark]: Boogie Procedure Inliner took 182.09 ms. Allocated memory is still 1.0 GB. Free memory is still 939.4 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-16 21:30:13,777 INFO L168 Benchmark]: Boogie Preprocessor took 115.27 ms. Allocated memory is still 1.0 GB. Free memory was 939.4 MB in the beginning and 933.6 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 12.5 GB. [2019-11-16 21:30:13,786 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43 ms. Allocated memory is still 1.0 GB. Free memory is still 988.9 MB. There was no memory consumed. Max. memory is 12.5 GB. * CACSL2BoogieTranslator took 1889.28 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 961.7 MB in the beginning and 939.4 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.4 MB. Max. memory is 12.5 GB. * Boogie Procedure Inliner took 182.09 ms. Allocated memory is still 1.0 GB. Free memory is still 939.4 MB. There was no memory consumed. Max. memory is 12.5 GB. * Boogie Preprocessor took 115.27 ms. Allocated memory is still 1.0 GB. Free memory was 939.4 MB in the beginning and 933.6 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 12.5 GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...