./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-complex/elimination_backoff_stack.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 509859d6 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-complex/elimination_backoff_stack.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 8be8ef5df161ec8607fcf260b448695cdc595d4f ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis 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-complex/elimination_backoff_stack.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.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 8be8ef5df161ec8607fcf260b448695cdc595d4f .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.1.24-509859d [2019-11-27 16:39:17,809 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 16:39:17,813 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 16:39:17,836 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 16:39:17,838 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 16:39:17,840 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 16:39:17,844 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 16:39:17,856 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 16:39:17,860 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 16:39:17,863 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 16:39:17,866 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 16:39:17,868 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 16:39:17,869 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 16:39:17,873 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 16:39:17,874 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 16:39:17,877 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 16:39:17,878 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 16:39:17,879 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 16:39:17,884 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 16:39:17,886 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 16:39:17,894 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 16:39:17,901 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 16:39:17,902 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 16:39:17,904 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 16:39:17,910 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 16:39:17,913 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 16:39:17,913 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 16:39:17,916 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 16:39:17,918 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 16:39:17,919 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 16:39:17,922 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 16:39:17,923 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 16:39:17,924 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 16:39:17,930 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 16:39:17,932 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 16:39:17,933 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 16:39:17,934 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 16:39:17,934 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 16:39:17,937 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 16:39:17,937 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 16:39:17,939 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 16:39:17,940 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-27 16:39:17,970 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 16:39:17,970 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 16:39:17,972 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 16:39:17,979 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 16:39:17,979 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 16:39:17,979 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 16:39:17,980 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 16:39:17,980 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 16:39:17,980 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 16:39:17,980 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 16:39:17,981 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 16:39:17,982 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 16:39:17,982 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 16:39:17,982 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 16:39:17,982 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 16:39:17,983 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 16:39:17,983 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 16:39:17,983 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 16:39:17,983 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 16:39:17,986 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 16:39:17,986 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 16:39:17,986 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 16:39:17,986 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 16:39:17,987 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 16:39:17,987 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 16:39:17,987 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 16:39:17,987 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 16:39:17,987 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 16:39:17,988 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 -> 8be8ef5df161ec8607fcf260b448695cdc595d4f [2019-11-27 16:39:18,354 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 16:39:18,369 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 16:39:18,375 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 16:39:18,378 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 16:39:18,380 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 16:39:18,381 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-complex/elimination_backoff_stack.i [2019-11-27 16:39:18,484 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0145c0d0b/f01642b6cfd941c9bd51f95674a293a2/FLAGc696f032c [2019-11-27 16:39:19,413 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 16:39:19,416 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-complex/elimination_backoff_stack.i [2019-11-27 16:39:19,456 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0145c0d0b/f01642b6cfd941c9bd51f95674a293a2/FLAGc696f032c [2019-11-27 16:39:19,506 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0145c0d0b/f01642b6cfd941c9bd51f95674a293a2 [2019-11-27 16:39:19,512 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 16:39:19,517 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-11-27 16:39:19,518 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 16:39:19,519 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 16:39:19,521 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 16:39:19,526 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 04:39:19" (1/1) ... [2019-11-27 16:39:19,532 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fb8afde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:39:19, skipping insertion in model container [2019-11-27 16:39:19,532 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 04:39:19" (1/1) ... [2019-11-27 16:39:19,547 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 16:39:19,640 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 16:39:20,863 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 16:39:20,887 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 16:39:21,055 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 16:39:21,522 INFO L208 MainTranslator]: Completed translation [2019-11-27 16:39:21,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:39:21 WrapperNode [2019-11-27 16:39:21,525 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 16:39:21,529 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 16:39:21,529 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 16:39:21,529 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 16:39:21,543 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:39:21" (1/1) ... [2019-11-27 16:39:21,612 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:39:21" (1/1) ... [2019-11-27 16:39:21,845 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 16:39:21,846 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 16:39:21,847 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 16:39:21,847 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 16:39:21,866 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:39:21" (1/1) ... [2019-11-27 16:39:21,866 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:39:21" (1/1) ... [2019-11-27 16:39:21,898 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:39:21" (1/1) ... [2019-11-27 16:39:21,901 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:39:21" (1/1) ... [2019-11-27 16:39:22,028 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:39:21" (1/1) ... [2019-11-27 16:39:22,059 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:39:21" (1/1) ... [2019-11-27 16:39:22,084 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:39:21" (1/1) ... [2019-11-27 16:39:22,113 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 16:39:22,120 INFO L168 Benchmark]: Toolchain (without parser) took 2601.79 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 841.6 MB in the end (delta: 120.1 MB). Peak memory consumption was 120.1 MB. Max. memory is 12.5 GB. [2019-11-27 16:39:22,123 INFO L168 Benchmark]: CDTParser took 1.93 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. [2019-11-27 16:39:22,124 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2007.01 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 956.0 MB in the beginning and 876.1 MB in the end (delta: 79.9 MB). Peak memory consumption was 80.0 MB. Max. memory is 12.5 GB. [2019-11-27 16:39:22,126 INFO L168 Benchmark]: Boogie Procedure Inliner took 317.45 ms. Allocated memory is still 1.0 GB. Free memory was 876.1 MB in the beginning and 858.9 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 12.5 GB. [2019-11-27 16:39:22,129 INFO L168 Benchmark]: Boogie Preprocessor took 266.99 ms. Allocated memory is still 1.0 GB. Free memory was 858.9 MB in the beginning and 841.6 MB in the end (delta: 17.3 MB). Peak memory consumption was 17.3 MB. Max. memory is 12.5 GB. [2019-11-27 16:39:22,137 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.93 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 2007.01 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 956.0 MB in the beginning and 876.1 MB in the end (delta: 79.9 MB). Peak memory consumption was 80.0 MB. Max. memory is 12.5 GB. * Boogie Procedure Inliner took 317.45 ms. Allocated memory is still 1.0 GB. Free memory was 876.1 MB in the beginning and 858.9 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 12.5 GB. * Boogie Preprocessor took 266.99 ms. Allocated memory is still 1.0 GB. Free memory was 858.9 MB in the beginning and 841.6 MB in the end (delta: 17.3 MB). Peak memory consumption was 17.3 MB. Max. memory is 12.5 GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-509859d [2019-11-27 16:39:24,853 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 16:39:24,855 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 16:39:24,880 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 16:39:24,881 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 16:39:24,890 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 16:39:24,893 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 16:39:24,898 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 16:39:24,904 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 16:39:24,907 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 16:39:24,908 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 16:39:24,919 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 16:39:24,921 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 16:39:24,923 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 16:39:24,926 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 16:39:24,928 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 16:39:24,933 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 16:39:24,934 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 16:39:24,936 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 16:39:24,942 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 16:39:24,948 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 16:39:24,954 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 16:39:24,956 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 16:39:24,957 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 16:39:24,963 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 16:39:24,965 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 16:39:24,965 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 16:39:24,967 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 16:39:24,968 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 16:39:24,969 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 16:39:24,971 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 16:39:24,973 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 16:39:24,974 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 16:39:24,977 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 16:39:24,979 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 16:39:24,980 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 16:39:24,983 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 16:39:24,984 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 16:39:24,984 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 16:39:24,985 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 16:39:24,986 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 16:39:24,987 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-27 16:39:25,015 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 16:39:25,017 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 16:39:25,020 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 16:39:25,021 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 16:39:25,021 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 16:39:25,021 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 16:39:25,021 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 16:39:25,022 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 16:39:25,022 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 16:39:25,023 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 16:39:25,024 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 16:39:25,024 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 16:39:25,026 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-27 16:39:25,026 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-27 16:39:25,026 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 16:39:25,027 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 16:39:25,027 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 16:39:25,027 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 16:39:25,027 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 16:39:25,027 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 16:39:25,028 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 16:39:25,029 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 16:39:25,029 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 16:39:25,029 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 16:39:25,029 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 16:39:25,030 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 16:39:25,030 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-27 16:39:25,032 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-27 16:39:25,032 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 16:39:25,032 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-27 16:39:25,033 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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 -> 8be8ef5df161ec8607fcf260b448695cdc595d4f [2019-11-27 16:39:25,507 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 16:39:25,524 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 16:39:25,527 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 16:39:25,535 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 16:39:25,535 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 16:39:25,536 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-complex/elimination_backoff_stack.i [2019-11-27 16:39:25,638 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5b02bef2/75ad275336b0439f83d00118dd3035ee/FLAG09f14c196 [2019-11-27 16:39:26,596 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 16:39:26,596 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-complex/elimination_backoff_stack.i [2019-11-27 16:39:26,636 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5b02bef2/75ad275336b0439f83d00118dd3035ee/FLAG09f14c196 [2019-11-27 16:39:26,688 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5b02bef2/75ad275336b0439f83d00118dd3035ee [2019-11-27 16:39:26,696 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 16:39:26,697 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-11-27 16:39:26,703 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 16:39:26,704 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 16:39:26,706 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 16:39:26,707 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 04:39:26" (1/1) ... [2019-11-27 16:39:26,710 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28f2aa46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:39:26, skipping insertion in model container [2019-11-27 16:39:26,711 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 04:39:26" (1/1) ... [2019-11-27 16:39:26,725 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 16:39:26,840 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 16:39:28,253 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 16:39:28,288 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 16:39:28,466 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 16:39:28,877 INFO L208 MainTranslator]: Completed translation [2019-11-27 16:39:28,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:39:28 WrapperNode [2019-11-27 16:39:28,880 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 16:39:28,881 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 16:39:28,884 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 16:39:28,884 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 16:39:28,900 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:39:28" (1/1) ... [2019-11-27 16:39:28,981 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:39:28" (1/1) ... [2019-11-27 16:39:29,215 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 16:39:29,218 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 16:39:29,220 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 16:39:29,220 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 16:39:29,238 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:39:28" (1/1) ... [2019-11-27 16:39:29,238 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:39:28" (1/1) ... [2019-11-27 16:39:29,293 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:39:28" (1/1) ... [2019-11-27 16:39:29,294 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:39:28" (1/1) ... [2019-11-27 16:39:29,470 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:39:28" (1/1) ... [2019-11-27 16:39:29,499 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:39:28" (1/1) ... [2019-11-27 16:39:29,527 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:39:28" (1/1) ... [2019-11-27 16:39:29,561 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 16:39:29,568 INFO L168 Benchmark]: Toolchain (without parser) took 2866.12 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 960.3 MB in the beginning and 846.0 MB in the end (delta: 114.3 MB). Peak memory consumption was 114.3 MB. Max. memory is 12.5 GB. [2019-11-27 16:39:29,569 INFO L168 Benchmark]: CDTParser took 0.25 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. [2019-11-27 16:39:29,572 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2177.35 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 954.5 MB in the beginning and 880.4 MB in the end (delta: 74.2 MB). Peak memory consumption was 74.2 MB. Max. memory is 12.5 GB. [2019-11-27 16:39:29,575 INFO L168 Benchmark]: Boogie Procedure Inliner took 337.06 ms. Allocated memory is still 1.0 GB. Free memory was 880.4 MB in the beginning and 863.2 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 12.5 GB. [2019-11-27 16:39:29,576 INFO L168 Benchmark]: Boogie Preprocessor took 343.41 ms. Allocated memory is still 1.0 GB. Free memory was 863.2 MB in the beginning and 846.0 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 12.5 GB. [2019-11-27 16:39:29,585 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 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 2177.35 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 954.5 MB in the beginning and 880.4 MB in the end (delta: 74.2 MB). Peak memory consumption was 74.2 MB. Max. memory is 12.5 GB. * Boogie Procedure Inliner took 337.06 ms. Allocated memory is still 1.0 GB. Free memory was 880.4 MB in the beginning and 863.2 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 12.5 GB. * Boogie Preprocessor took 343.41 ms. Allocated memory is still 1.0 GB. Free memory was 863.2 MB in the beginning and 846.0 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 12.5 GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...