./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/interpolation2.c --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/float-benchs/interpolation2.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 3b34dfede3b17d4dbfd431f9690ffc98f8a52b8d ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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/float-benchs/interpolation2.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 3b34dfede3b17d4dbfd431f9690ffc98f8a52b8d ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 16:07:03,798 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 16:07:03,803 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 16:07:03,827 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 16:07:03,829 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 16:07:03,831 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 16:07:03,834 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 16:07:03,861 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 16:07:03,864 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 16:07:03,870 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 16:07:03,876 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 16:07:03,881 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 16:07:03,882 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 16:07:03,888 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 16:07:03,891 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 16:07:03,897 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 16:07:03,899 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 16:07:03,905 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 16:07:03,909 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 16:07:03,919 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 16:07:03,928 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 16:07:03,931 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 16:07:03,936 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 16:07:03,942 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 16:07:03,949 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 16:07:03,950 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 16:07:03,950 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 16:07:03,952 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 16:07:03,955 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 16:07:03,956 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 16:07:03,958 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 16:07:03,959 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 16:07:03,961 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 16:07:03,965 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 16:07:03,969 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 16:07:03,970 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 16:07:03,972 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 16:07:03,974 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 16:07:03,974 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 16:07:03,978 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 16:07:03,981 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 16:07:03,983 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-27 16:07:04,020 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 16:07:04,022 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 16:07:04,027 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 16:07:04,029 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 16:07:04,029 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 16:07:04,030 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 16:07:04,030 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 16:07:04,030 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 16:07:04,031 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 16:07:04,034 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 16:07:04,035 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 16:07:04,035 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 16:07:04,036 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 16:07:04,036 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 16:07:04,037 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 16:07:04,037 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 16:07:04,037 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 16:07:04,037 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 16:07:04,038 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 16:07:04,038 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 16:07:04,041 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 16:07:04,041 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 16:07:04,042 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 16:07:04,042 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 16:07:04,042 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 16:07:04,043 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 16:07:04,043 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 16:07:04,043 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 16:07:04,044 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 -> 3b34dfede3b17d4dbfd431f9690ffc98f8a52b8d [2019-11-27 16:07:04,654 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 16:07:04,684 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 16:07:04,690 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 16:07:04,691 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 16:07:04,693 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 16:07:04,694 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/interpolation2.c [2019-11-27 16:07:04,818 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63f3ac768/117ae7509b43400395dc3a958ae8d86d/FLAGeda3c2518 [2019-11-27 16:07:05,812 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 16:07:05,816 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/interpolation2.c [2019-11-27 16:07:05,833 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63f3ac768/117ae7509b43400395dc3a958ae8d86d/FLAGeda3c2518 [2019-11-27 16:07:05,959 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63f3ac768/117ae7509b43400395dc3a958ae8d86d [2019-11-27 16:07:05,970 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 16:07:05,972 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-11-27 16:07:05,974 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 16:07:05,977 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 16:07:05,983 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 16:07:05,985 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 04:07:05" (1/1) ... [2019-11-27 16:07:05,993 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fad7393 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:07:05, skipping insertion in model container [2019-11-27 16:07:05,995 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 04:07:05" (1/1) ... [2019-11-27 16:07:06,015 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 16:07:06,061 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 16:07:06,537 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 16:07:06,549 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 16:07:06,742 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 16:07:06,801 INFO L208 MainTranslator]: Completed translation [2019-11-27 16:07:06,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:07:06 WrapperNode [2019-11-27 16:07:06,806 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 16:07:06,807 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 16:07:06,807 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 16:07:06,809 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 16:07:06,833 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:07:06" (1/1) ... [2019-11-27 16:07:06,868 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:07:06" (1/1) ... [2019-11-27 16:07:06,933 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 16:07:06,935 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 16:07:06,936 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 16:07:06,936 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 16:07:06,947 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:07:06" (1/1) ... [2019-11-27 16:07:06,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:07:06" (1/1) ... [2019-11-27 16:07:06,959 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:07:06" (1/1) ... [2019-11-27 16:07:06,960 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:07:06" (1/1) ... [2019-11-27 16:07:06,987 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:07:06" (1/1) ... [2019-11-27 16:07:07,004 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:07:06" (1/1) ... [2019-11-27 16:07:07,013 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:07:06" (1/1) ... [2019-11-27 16:07:07,021 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 16:07:07,027 INFO L168 Benchmark]: Toolchain (without parser) took 1052.33 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 991.3 MB in the end (delta: -31.0 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 16:07:07,043 INFO L168 Benchmark]: CDTParser took 0.23 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 16:07:07,049 INFO L168 Benchmark]: CACSL2BoogieTranslator took 832.49 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 991.3 MB in the end (delta: -31.0 MB). Peak memory consumption was 20.6 MB. Max. memory is 12.5 GB. [2019-11-27 16:07:07,049 INFO L168 Benchmark]: Boogie Procedure Inliner took 127.99 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 16:07:07,051 INFO L168 Benchmark]: Boogie Preprocessor took 86.38 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 16:07:07,063 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 832.49 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 991.3 MB in the end (delta: -31.0 MB). Peak memory consumption was 20.6 MB. Max. memory is 12.5 GB. * Boogie Procedure Inliner took 127.99 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. * Boogie Preprocessor took 86.38 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... ### Bit-precise run ### This is Ultimate 0.1.24-509859d [2019-11-27 16:07:10,971 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 16:07:10,977 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 16:07:11,012 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 16:07:11,015 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 16:07:11,018 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 16:07:11,026 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 16:07:11,039 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 16:07:11,048 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 16:07:11,054 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 16:07:11,056 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 16:07:11,060 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 16:07:11,063 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 16:07:11,068 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 16:07:11,073 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 16:07:11,076 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 16:07:11,079 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 16:07:11,081 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 16:07:11,090 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 16:07:11,094 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 16:07:11,106 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 16:07:11,112 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 16:07:11,113 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 16:07:11,117 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 16:07:11,125 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 16:07:11,128 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 16:07:11,128 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 16:07:11,130 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 16:07:11,133 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 16:07:11,134 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 16:07:11,136 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 16:07:11,138 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 16:07:11,142 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 16:07:11,144 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 16:07:11,149 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 16:07:11,149 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 16:07:11,153 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 16:07:11,154 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 16:07:11,154 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 16:07:11,155 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 16:07:11,159 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 16:07:11,160 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-27 16:07:11,218 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 16:07:11,220 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 16:07:11,223 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 16:07:11,226 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 16:07:11,226 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 16:07:11,232 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 16:07:11,232 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 16:07:11,233 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 16:07:11,233 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 16:07:11,233 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 16:07:11,233 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 16:07:11,234 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 16:07:11,234 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-27 16:07:11,236 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-27 16:07:11,236 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 16:07:11,236 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 16:07:11,239 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 16:07:11,240 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 16:07:11,241 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 16:07:11,242 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 16:07:11,242 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 16:07:11,242 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 16:07:11,244 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 16:07:11,245 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 16:07:11,245 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 16:07:11,247 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 16:07:11,247 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-27 16:07:11,247 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-27 16:07:11,250 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 16:07:11,250 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-27 16:07:11,252 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 -> 3b34dfede3b17d4dbfd431f9690ffc98f8a52b8d [2019-11-27 16:07:11,798 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 16:07:11,838 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 16:07:11,845 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 16:07:11,851 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 16:07:11,853 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 16:07:11,855 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/interpolation2.c [2019-11-27 16:07:12,016 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43acc9b70/17ca9f4bce6247838d14b63bbb52798e/FLAG7417bd969 [2019-11-27 16:07:13,061 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 16:07:13,062 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/interpolation2.c [2019-11-27 16:07:13,077 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43acc9b70/17ca9f4bce6247838d14b63bbb52798e/FLAG7417bd969 [2019-11-27 16:07:13,116 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43acc9b70/17ca9f4bce6247838d14b63bbb52798e [2019-11-27 16:07:13,124 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 16:07:13,126 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-11-27 16:07:13,134 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 16:07:13,134 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 16:07:13,141 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 16:07:13,143 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 04:07:13" (1/1) ... [2019-11-27 16:07:13,152 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18f409c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:07:13, skipping insertion in model container [2019-11-27 16:07:13,153 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 04:07:13" (1/1) ... [2019-11-27 16:07:13,172 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 16:07:13,217 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 16:07:13,673 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 16:07:13,691 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 16:07:13,888 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 16:07:13,941 INFO L208 MainTranslator]: Completed translation [2019-11-27 16:07:13,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:07:13 WrapperNode [2019-11-27 16:07:13,942 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 16:07:13,948 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 16:07:13,948 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 16:07:13,948 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 16:07:13,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:07:13" (1/1) ... [2019-11-27 16:07:14,003 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:07:13" (1/1) ... [2019-11-27 16:07:14,059 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 16:07:14,074 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 16:07:14,074 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 16:07:14,074 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 16:07:14,097 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:07:13" (1/1) ... [2019-11-27 16:07:14,099 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:07:13" (1/1) ... [2019-11-27 16:07:14,111 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:07:13" (1/1) ... [2019-11-27 16:07:14,112 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:07:13" (1/1) ... [2019-11-27 16:07:14,145 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:07:13" (1/1) ... [2019-11-27 16:07:14,159 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:07:13" (1/1) ... [2019-11-27 16:07:14,162 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:07:13" (1/1) ... [2019-11-27 16:07:14,170 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 16:07:14,178 INFO L168 Benchmark]: Toolchain (without parser) took 1049.17 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 985.4 MB in the end (delta: -23.7 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 16:07:14,181 INFO L168 Benchmark]: CDTParser took 1.10 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 16:07:14,185 INFO L168 Benchmark]: CACSL2BoogieTranslator took 808.89 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 991.1 MB in the end (delta: -29.4 MB). Peak memory consumption was 20.7 MB. Max. memory is 12.5 GB. [2019-11-27 16:07:14,186 INFO L168 Benchmark]: Boogie Procedure Inliner took 111.56 ms. Allocated memory is still 1.0 GB. Free memory is still 991.1 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 16:07:14,189 INFO L168 Benchmark]: Boogie Preprocessor took 96.76 ms. Allocated memory is still 1.0 GB. Free memory was 991.1 MB in the beginning and 985.4 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 12.5 GB. [2019-11-27 16:07:14,204 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.10 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 808.89 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 991.1 MB in the end (delta: -29.4 MB). Peak memory consumption was 20.7 MB. Max. memory is 12.5 GB. * Boogie Procedure Inliner took 111.56 ms. Allocated memory is still 1.0 GB. Free memory is still 991.1 MB. There was no memory consumed. Max. memory is 12.5 GB. * Boogie Preprocessor took 96.76 ms. Allocated memory is still 1.0 GB. Free memory was 991.1 MB in the beginning and 985.4 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...