./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/interpolation2.c.p+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 65d6cd23 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.p+cfa-reducer.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 2c1dd836bd94b58992d0afa5dcab22080692fc8a .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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.p+cfa-reducer.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 2c1dd836bd94b58992d0afa5dcab22080692fc8a ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.1.24-65d6cd2 [2019-11-25 22:50:10,787 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 22:50:10,795 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 22:50:10,819 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 22:50:10,821 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 22:50:10,824 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 22:50:10,826 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 22:50:10,855 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 22:50:10,859 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 22:50:10,865 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 22:50:10,869 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 22:50:10,875 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 22:50:10,875 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 22:50:10,881 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 22:50:10,885 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 22:50:10,893 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 22:50:10,895 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 22:50:10,905 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 22:50:10,913 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 22:50:10,919 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 22:50:10,929 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 22:50:10,931 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 22:50:10,939 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 22:50:10,942 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 22:50:10,953 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 22:50:10,954 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 22:50:10,954 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 22:50:10,957 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 22:50:10,959 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 22:50:10,962 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 22:50:10,964 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 22:50:10,965 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 22:50:10,968 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 22:50:10,971 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 22:50:10,975 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 22:50:10,976 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 22:50:10,981 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 22:50:10,981 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 22:50:10,981 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 22:50:10,984 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 22:50:10,988 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 22:50:10,989 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-25 22:50:11,029 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 22:50:11,032 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 22:50:11,036 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 22:50:11,040 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 22:50:11,040 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 22:50:11,041 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 22:50:11,041 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 22:50:11,041 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 22:50:11,042 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 22:50:11,042 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 22:50:11,043 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 22:50:11,044 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 22:50:11,044 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 22:50:11,045 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 22:50:11,048 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 22:50:11,048 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 22:50:11,048 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 22:50:11,049 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 22:50:11,049 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 22:50:11,050 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 22:50:11,050 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 22:50:11,050 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 22:50:11,050 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 22:50:11,053 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 22:50:11,053 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 22:50:11,053 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 22:50:11,054 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-25 22:50:11,054 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 22:50:11,054 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 -> 2c1dd836bd94b58992d0afa5dcab22080692fc8a [2019-11-25 22:50:11,633 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 22:50:11,664 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 22:50:11,672 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 22:50:11,675 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 22:50:11,677 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 22:50:11,680 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/interpolation2.c.p+cfa-reducer.c [2019-11-25 22:50:11,846 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/453a3801a/93b8b8972aae454b84162ba24639a7ca/FLAGed8d28ed4 [2019-11-25 22:50:12,879 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 22:50:12,881 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/interpolation2.c.p+cfa-reducer.c [2019-11-25 22:50:12,899 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/453a3801a/93b8b8972aae454b84162ba24639a7ca/FLAGed8d28ed4 [2019-11-25 22:50:13,031 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/453a3801a/93b8b8972aae454b84162ba24639a7ca [2019-11-25 22:50:13,036 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 22:50:13,038 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-11-25 22:50:13,047 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 22:50:13,048 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 22:50:13,052 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 22:50:13,053 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:50:13" (1/1) ... [2019-11-25 22:50:13,056 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@601bf59b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:50:13, skipping insertion in model container [2019-11-25 22:50:13,057 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:50:13" (1/1) ... [2019-11-25 22:50:13,072 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 22:50:13,130 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-25 22:50:13,523 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 22:50:13,548 INFO L203 MainTranslator]: Completed pre-run [2019-11-25 22:50:13,725 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 22:50:13,762 INFO L208 MainTranslator]: Completed translation [2019-11-25 22:50:13,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:50:13 WrapperNode [2019-11-25 22:50:13,769 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 22:50:13,770 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 22:50:13,771 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 22:50:13,771 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 22:50:13,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:50:13" (1/1) ... [2019-11-25 22:50:13,816 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:50:13" (1/1) ... [2019-11-25 22:50:13,866 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 22:50:13,868 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 22:50:13,869 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 22:50:13,869 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 22:50:13,881 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:50:13" (1/1) ... [2019-11-25 22:50:13,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:50:13" (1/1) ... [2019-11-25 22:50:13,887 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:50:13" (1/1) ... [2019-11-25 22:50:13,887 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:50:13" (1/1) ... [2019-11-25 22:50:13,930 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:50:13" (1/1) ... [2019-11-25 22:50:13,933 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:50:13" (1/1) ... [2019-11-25 22:50:13,939 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:50:13" (1/1) ... [2019-11-25 22:50:13,943 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 22:50:13,967 INFO L168 Benchmark]: Toolchain (without parser) took 909.85 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 985.8 MB in the end (delta: -25.5 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-25 22:50:13,970 INFO L168 Benchmark]: CDTParser took 0.41 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. [2019-11-25 22:50:13,973 INFO L168 Benchmark]: CACSL2BoogieTranslator took 722.35 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 960.3 MB in the beginning and 991.5 MB in the end (delta: -31.2 MB). Peak memory consumption was 20.4 MB. Max. memory is 12.5 GB. [2019-11-25 22:50:13,978 INFO L168 Benchmark]: Boogie Procedure Inliner took 97.96 ms. Allocated memory is still 1.0 GB. Free memory is still 991.5 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-25 22:50:13,980 INFO L168 Benchmark]: Boogie Preprocessor took 76.60 ms. Allocated memory is still 1.0 GB. Free memory was 991.5 MB in the beginning and 985.8 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 12.5 GB. [2019-11-25 22:50:13,989 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41 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 722.35 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 960.3 MB in the beginning and 991.5 MB in the end (delta: -31.2 MB). Peak memory consumption was 20.4 MB. Max. memory is 12.5 GB. * Boogie Procedure Inliner took 97.96 ms. Allocated memory is still 1.0 GB. Free memory is still 991.5 MB. There was no memory consumed. Max. memory is 12.5 GB. * Boogie Preprocessor took 76.60 ms. Allocated memory is still 1.0 GB. Free memory was 991.5 MB in the beginning and 985.8 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... ### Bit-precise run ### This is Ultimate 0.1.24-65d6cd2 [2019-11-25 22:50:17,955 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 22:50:17,958 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 22:50:17,982 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 22:50:17,983 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 22:50:17,986 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 22:50:18,002 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 22:50:18,019 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 22:50:18,023 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 22:50:18,028 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 22:50:18,031 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 22:50:18,036 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 22:50:18,039 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 22:50:18,044 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 22:50:18,048 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 22:50:18,052 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 22:50:18,056 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 22:50:18,059 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 22:50:18,064 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 22:50:18,072 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 22:50:18,080 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 22:50:18,087 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 22:50:18,090 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 22:50:18,095 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 22:50:18,105 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 22:50:18,105 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 22:50:18,106 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 22:50:18,108 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 22:50:18,108 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 22:50:18,110 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 22:50:18,112 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 22:50:18,113 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 22:50:18,115 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 22:50:18,119 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 22:50:18,121 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 22:50:18,125 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 22:50:18,126 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 22:50:18,126 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 22:50:18,127 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 22:50:18,131 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 22:50:18,133 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 22:50:18,134 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-25 22:50:18,179 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 22:50:18,179 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 22:50:18,183 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 22:50:18,187 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 22:50:18,187 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 22:50:18,188 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 22:50:18,188 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 22:50:18,188 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 22:50:18,188 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 22:50:18,188 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 22:50:18,189 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 22:50:18,190 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 22:50:18,190 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-25 22:50:18,190 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-25 22:50:18,191 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 22:50:18,191 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 22:50:18,191 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 22:50:18,193 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 22:50:18,193 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 22:50:18,193 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 22:50:18,193 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 22:50:18,194 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 22:50:18,194 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 22:50:18,194 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 22:50:18,196 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 22:50:18,196 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 22:50:18,196 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-25 22:50:18,196 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-25 22:50:18,197 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 22:50:18,197 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-25 22:50:18,200 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 -> 2c1dd836bd94b58992d0afa5dcab22080692fc8a [2019-11-25 22:50:18,788 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 22:50:18,817 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 22:50:18,824 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 22:50:18,830 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 22:50:18,830 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 22:50:18,832 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/interpolation2.c.p+cfa-reducer.c [2019-11-25 22:50:18,986 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c40ddf758/5c4e1756c5aa4c3d8220fb6d7b6c96ab/FLAGd4d910619 [2019-11-25 22:50:20,035 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 22:50:20,037 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/interpolation2.c.p+cfa-reducer.c [2019-11-25 22:50:20,055 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c40ddf758/5c4e1756c5aa4c3d8220fb6d7b6c96ab/FLAGd4d910619 [2019-11-25 22:50:20,141 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c40ddf758/5c4e1756c5aa4c3d8220fb6d7b6c96ab [2019-11-25 22:50:20,150 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 22:50:20,155 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-11-25 22:50:20,158 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 22:50:20,162 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 22:50:20,168 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 22:50:20,171 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:50:20" (1/1) ... [2019-11-25 22:50:20,179 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31ddd501 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:50:20, skipping insertion in model container [2019-11-25 22:50:20,180 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:50:20" (1/1) ... [2019-11-25 22:50:20,200 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 22:50:20,253 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-25 22:50:20,748 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 22:50:20,772 INFO L203 MainTranslator]: Completed pre-run [2019-11-25 22:50:20,954 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 22:50:20,996 INFO L208 MainTranslator]: Completed translation [2019-11-25 22:50:20,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:50:20 WrapperNode [2019-11-25 22:50:20,997 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 22:50:21,005 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 22:50:21,006 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 22:50:21,006 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 22:50:21,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:50:20" (1/1) ... [2019-11-25 22:50:21,049 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:50:20" (1/1) ... [2019-11-25 22:50:21,098 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 22:50:21,099 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 22:50:21,107 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 22:50:21,108 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 22:50:21,119 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:50:20" (1/1) ... [2019-11-25 22:50:21,119 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:50:20" (1/1) ... [2019-11-25 22:50:21,141 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:50:20" (1/1) ... [2019-11-25 22:50:21,142 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:50:20" (1/1) ... [2019-11-25 22:50:21,171 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:50:20" (1/1) ... [2019-11-25 22:50:21,181 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:50:20" (1/1) ... [2019-11-25 22:50:21,189 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:50:20" (1/1) ... [2019-11-25 22:50:21,202 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 22:50:21,215 INFO L168 Benchmark]: Toolchain (without parser) took 1052.94 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 984.1 MB in the end (delta: -22.4 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-25 22:50:21,216 INFO L168 Benchmark]: CDTParser took 0.38 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. [2019-11-25 22:50:21,219 INFO L168 Benchmark]: CACSL2BoogieTranslator took 839.60 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 991.3 MB in the end (delta: -29.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 12.5 GB. [2019-11-25 22:50:21,225 INFO L168 Benchmark]: Boogie Procedure Inliner took 93.67 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. [2019-11-25 22:50:21,228 INFO L168 Benchmark]: Boogie Preprocessor took 103.06 ms. Allocated memory is still 1.0 GB. Free memory was 991.3 MB in the beginning and 984.1 MB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 12.5 GB. [2019-11-25 22:50:21,245 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 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 839.60 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 991.3 MB in the end (delta: -29.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 12.5 GB. * Boogie Procedure Inliner took 93.67 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 103.06 ms. Allocated memory is still 1.0 GB. Free memory was 991.3 MB in the beginning and 984.1 MB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 12.5 GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...