./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-acceleration/underapprox_2-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version da95e156 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/loop-acceleration/underapprox_2-1.c -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 452a4ddc5d154328a041fd76cdcbb5b63a51957d ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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/loop-acceleration/underapprox_2-1.c -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 452a4ddc5d154328a041fd76cdcbb5b63a51957d ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.1.24-da95e15 [2019-11-27 09:51:19,791 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 09:51:19,796 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 09:51:19,814 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 09:51:19,816 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 09:51:19,824 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 09:51:19,827 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 09:51:19,839 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 09:51:19,847 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 09:51:19,850 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 09:51:19,851 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 09:51:19,856 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 09:51:19,856 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 09:51:19,859 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 09:51:19,863 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 09:51:19,864 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 09:51:19,867 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 09:51:19,868 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 09:51:19,871 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 09:51:19,876 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 09:51:19,879 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 09:51:19,887 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 09:51:19,891 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 09:51:19,892 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 09:51:19,897 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 09:51:19,898 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 09:51:19,898 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 09:51:19,899 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 09:51:19,901 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 09:51:19,902 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 09:51:19,904 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 09:51:19,904 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 09:51:19,905 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 09:51:19,907 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 09:51:19,910 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 09:51:19,910 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 09:51:19,914 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 09:51:19,914 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 09:51:19,914 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 09:51:19,915 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 09:51:19,918 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 09:51:19,920 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-27 09:51:19,948 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 09:51:19,949 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 09:51:19,953 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 09:51:19,955 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 09:51:19,955 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 09:51:19,955 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 09:51:19,955 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 09:51:19,956 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 09:51:19,956 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 09:51:19,956 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 09:51:19,957 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 09:51:19,957 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 09:51:19,960 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 09:51:19,960 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 09:51:19,960 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 09:51:19,961 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 09:51:19,961 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 09:51:19,961 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 09:51:19,961 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 09:51:19,961 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 09:51:19,962 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 09:51:19,962 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 09:51:19,962 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 09:51:19,962 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 09:51:19,962 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 09:51:19,965 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 09:51:19,965 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 09:51:19,965 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 09:51:19,965 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 -> 452a4ddc5d154328a041fd76cdcbb5b63a51957d [2019-11-27 09:51:20,442 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 09:51:20,458 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 09:51:20,464 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 09:51:20,470 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 09:51:20,471 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 09:51:20,471 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-acceleration/underapprox_2-1.c [2019-11-27 09:51:20,578 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95c4a3fdd/1a516ef957c9413eb80b916cc2e22c52/FLAGac8dfc22b [2019-11-27 09:51:21,310 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 09:51:21,313 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-acceleration/underapprox_2-1.c [2019-11-27 09:51:21,325 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95c4a3fdd/1a516ef957c9413eb80b916cc2e22c52/FLAGac8dfc22b [2019-11-27 09:51:21,614 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95c4a3fdd/1a516ef957c9413eb80b916cc2e22c52 [2019-11-27 09:51:21,617 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 09:51:21,621 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-11-27 09:51:21,624 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 09:51:21,624 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 09:51:21,630 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 09:51:21,634 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 09:51:21" (1/1) ... [2019-11-27 09:51:21,639 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fac7363 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:51:21, skipping insertion in model container [2019-11-27 09:51:21,639 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 09:51:21" (1/1) ... [2019-11-27 09:51:21,653 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 09:51:21,684 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 09:51:21,954 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 09:51:21,960 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 09:51:21,974 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 09:51:21,993 INFO L208 MainTranslator]: Completed translation [2019-11-27 09:51:21,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:51:21 WrapperNode [2019-11-27 09:51:21,995 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 09:51:21,996 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 09:51:21,999 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 09:51:22,000 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 09:51:22,007 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:51:21" (1/1) ... [2019-11-27 09:51:22,015 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:51:21" (1/1) ... [2019-11-27 09:51:22,115 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 09:51:22,117 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 09:51:22,117 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 09:51:22,124 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 09:51:22,131 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:51:21" (1/1) ... [2019-11-27 09:51:22,132 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:51:21" (1/1) ... [2019-11-27 09:51:22,132 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:51:21" (1/1) ... [2019-11-27 09:51:22,133 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:51:21" (1/1) ... [2019-11-27 09:51:22,135 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:51:21" (1/1) ... [2019-11-27 09:51:22,140 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:51:21" (1/1) ... [2019-11-27 09:51:22,141 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:51:21" (1/1) ... [2019-11-27 09:51:22,142 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 09:51:22,161 INFO L168 Benchmark]: Toolchain (without parser) took 523.01 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 966.0 MB in the beginning and 995.6 MB in the end (delta: -29.6 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 09:51:22,163 INFO L168 Benchmark]: CDTParser took 0.51 ms. Allocated memory is still 1.0 GB. Free memory is still 994.6 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 09:51:22,164 INFO L168 Benchmark]: CACSL2BoogieTranslator took 371.29 ms. Allocated memory is still 1.0 GB. Free memory was 966.0 MB in the beginning and 954.5 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 12.5 GB. [2019-11-27 09:51:22,168 INFO L168 Benchmark]: Boogie Procedure Inliner took 121.10 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 995.6 MB in the end (delta: -41.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 12.5 GB. [2019-11-27 09:51:22,170 INFO L168 Benchmark]: Boogie Preprocessor took 24.90 ms. Allocated memory is still 1.0 GB. Free memory is still 995.6 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 09:51:22,177 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51 ms. Allocated memory is still 1.0 GB. Free memory is still 994.6 MB. There was no memory consumed. Max. memory is 12.5 GB. * CACSL2BoogieTranslator took 371.29 ms. Allocated memory is still 1.0 GB. Free memory was 966.0 MB in the beginning and 954.5 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 12.5 GB. * Boogie Procedure Inliner took 121.10 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 995.6 MB in the end (delta: -41.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 12.5 GB. * Boogie Preprocessor took 24.90 ms. Allocated memory is still 1.0 GB. Free memory is still 995.6 MB. There was no memory consumed. 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-da95e15 [2019-11-27 09:51:24,919 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 09:51:24,924 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 09:51:24,949 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 09:51:24,952 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 09:51:24,954 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 09:51:24,957 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 09:51:24,970 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 09:51:24,977 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 09:51:24,980 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 09:51:24,981 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 09:51:24,987 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 09:51:24,987 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 09:51:24,989 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 09:51:24,993 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 09:51:24,995 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 09:51:24,996 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 09:51:24,997 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 09:51:25,002 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 09:51:25,006 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 09:51:25,013 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 09:51:25,018 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 09:51:25,022 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 09:51:25,024 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 09:51:25,029 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 09:51:25,030 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 09:51:25,030 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 09:51:25,032 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 09:51:25,035 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 09:51:25,036 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 09:51:25,036 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 09:51:25,037 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 09:51:25,038 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 09:51:25,041 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 09:51:25,042 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 09:51:25,043 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 09:51:25,048 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 09:51:25,048 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 09:51:25,048 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 09:51:25,049 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 09:51:25,051 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 09:51:25,053 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-27 09:51:25,080 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 09:51:25,081 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 09:51:25,083 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 09:51:25,085 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 09:51:25,085 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 09:51:25,085 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 09:51:25,086 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 09:51:25,088 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 09:51:25,088 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 09:51:25,088 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 09:51:25,089 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 09:51:25,089 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 09:51:25,090 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-27 09:51:25,090 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-27 09:51:25,090 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 09:51:25,090 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 09:51:25,091 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 09:51:25,094 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 09:51:25,094 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 09:51:25,094 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 09:51:25,095 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 09:51:25,095 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 09:51:25,095 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 09:51:25,095 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 09:51:25,095 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 09:51:25,096 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 09:51:25,096 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-27 09:51:25,096 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-27 09:51:25,096 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 09:51:25,096 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-27 09:51:25,098 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 -> 452a4ddc5d154328a041fd76cdcbb5b63a51957d [2019-11-27 09:51:25,554 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 09:51:25,572 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 09:51:25,579 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 09:51:25,580 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 09:51:25,582 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 09:51:25,586 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-acceleration/underapprox_2-1.c [2019-11-27 09:51:25,690 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c48bd2353/813eb0cccbf84742bbb0051ad5ee2064/FLAG675edc315 [2019-11-27 09:51:26,403 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 09:51:26,406 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-acceleration/underapprox_2-1.c [2019-11-27 09:51:26,419 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c48bd2353/813eb0cccbf84742bbb0051ad5ee2064/FLAG675edc315 [2019-11-27 09:51:26,717 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c48bd2353/813eb0cccbf84742bbb0051ad5ee2064 [2019-11-27 09:51:26,730 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 09:51:26,732 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-11-27 09:51:26,736 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 09:51:26,736 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 09:51:26,739 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 09:51:26,743 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 09:51:26" (1/1) ... [2019-11-27 09:51:26,749 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@503d68ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:51:26, skipping insertion in model container [2019-11-27 09:51:26,750 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 09:51:26" (1/1) ... [2019-11-27 09:51:26,764 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 09:51:26,796 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 09:51:27,098 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 09:51:27,108 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 09:51:27,124 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 09:51:27,144 INFO L208 MainTranslator]: Completed translation [2019-11-27 09:51:27,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:51:27 WrapperNode [2019-11-27 09:51:27,145 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 09:51:27,151 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 09:51:27,151 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 09:51:27,151 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 09:51:27,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:51:27" (1/1) ... [2019-11-27 09:51:27,239 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:51:27" (1/1) ... [2019-11-27 09:51:27,263 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 09:51:27,264 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 09:51:27,264 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 09:51:27,264 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 09:51:27,272 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:51:27" (1/1) ... [2019-11-27 09:51:27,272 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:51:27" (1/1) ... [2019-11-27 09:51:27,277 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:51:27" (1/1) ... [2019-11-27 09:51:27,277 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:51:27" (1/1) ... [2019-11-27 09:51:27,281 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:51:27" (1/1) ... [2019-11-27 09:51:27,292 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:51:27" (1/1) ... [2019-11-27 09:51:27,293 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:51:27" (1/1) ... [2019-11-27 09:51:27,295 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 09:51:27,302 INFO L168 Benchmark]: Toolchain (without parser) took 565.50 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 967.4 MB in the beginning and 991.3 MB in the end (delta: -23.9 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 09:51:27,316 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 994.6 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 09:51:27,317 INFO L168 Benchmark]: CACSL2BoogieTranslator took 410.15 ms. Allocated memory is still 1.0 GB. Free memory was 967.4 MB in the beginning and 956.0 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 12.5 GB. [2019-11-27 09:51:27,319 INFO L168 Benchmark]: Boogie Procedure Inliner took 113.04 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 991.3 MB in the end (delta: -35.4 MB). Peak memory consumption was 9.1 MB. Max. memory is 12.5 GB. [2019-11-27 09:51:27,321 INFO L168 Benchmark]: Boogie Preprocessor took 30.96 ms. Allocated memory is still 1.0 GB. Free memory is still 991.3 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 09:51:27,325 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 994.6 MB. There was no memory consumed. Max. memory is 12.5 GB. * CACSL2BoogieTranslator took 410.15 ms. Allocated memory is still 1.0 GB. Free memory was 967.4 MB in the beginning and 956.0 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 12.5 GB. * Boogie Procedure Inliner took 113.04 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 991.3 MB in the end (delta: -35.4 MB). Peak memory consumption was 9.1 MB. Max. memory is 12.5 GB. * Boogie Preprocessor took 30.96 ms. Allocated memory is still 1.0 GB. Free memory is still 991.3 MB. There was no memory consumed. Max. memory is 12.5 GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...