./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/Muller_Kahan.c.p+cfa-reducer.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/Muller_Kahan.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 4c885d5164b9c6a132aac8a890127abac4e8781e .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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/Muller_Kahan.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 4c885d5164b9c6a132aac8a890127abac4e8781e ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 16:06:43,741 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 16:06:43,749 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 16:06:43,783 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 16:06:43,786 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 16:06:43,791 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 16:06:43,796 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 16:06:43,813 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 16:06:43,816 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 16:06:43,822 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 16:06:43,824 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 16:06:43,828 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 16:06:43,830 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 16:06:43,836 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 16:06:43,841 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 16:06:43,847 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 16:06:43,849 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 16:06:43,855 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 16:06:43,859 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 16:06:43,869 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 16:06:43,877 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 16:06:43,884 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 16:06:43,887 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 16:06:43,890 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 16:06:43,898 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 16:06:43,900 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 16:06:43,900 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 16:06:43,905 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 16:06:43,905 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 16:06:43,907 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 16:06:43,910 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 16:06:43,911 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 16:06:43,912 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 16:06:43,916 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 16:06:43,917 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 16:06:43,920 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 16:06:43,921 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 16:06:43,922 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 16:06:43,923 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 16:06:43,926 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 16:06:43,930 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 16:06:43,931 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-27 16:06:43,975 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 16:06:43,976 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 16:06:43,981 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 16:06:43,982 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 16:06:43,982 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 16:06:43,983 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 16:06:43,983 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 16:06:43,985 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 16:06:43,985 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 16:06:43,985 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 16:06:43,987 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 16:06:43,988 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 16:06:43,988 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 16:06:43,991 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 16:06:43,992 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 16:06:43,992 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 16:06:43,993 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 16:06:43,993 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 16:06:43,993 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 16:06:43,994 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 16:06:43,996 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 16:06:43,996 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 16:06:43,997 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 16:06:43,997 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 16:06:43,997 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 16:06:43,999 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 16:06:43,999 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 16:06:44,001 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 16:06:44,006 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 -> 4c885d5164b9c6a132aac8a890127abac4e8781e [2019-11-27 16:06:44,619 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 16:06:44,635 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 16:06:44,641 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 16:06:44,646 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 16:06:44,646 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 16:06:44,647 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/Muller_Kahan.c.p+cfa-reducer.c [2019-11-27 16:06:44,792 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb9225c30/1a0405117160464e90c72c6d559694fe/FLAG77531207b [2019-11-27 16:06:45,815 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 16:06:45,820 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/Muller_Kahan.c.p+cfa-reducer.c [2019-11-27 16:06:45,836 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb9225c30/1a0405117160464e90c72c6d559694fe/FLAG77531207b [2019-11-27 16:06:45,874 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb9225c30/1a0405117160464e90c72c6d559694fe [2019-11-27 16:06:45,884 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 16:06:45,890 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-11-27 16:06:45,891 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 16:06:45,894 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 16:06:45,900 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 16:06:45,903 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 04:06:45" (1/1) ... [2019-11-27 16:06:45,914 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6758708e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:06:45, skipping insertion in model container [2019-11-27 16:06:45,914 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 04:06:45" (1/1) ... [2019-11-27 16:06:45,933 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 16:06:45,981 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 16:06:46,422 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 16:06:46,438 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 16:06:46,486 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 16:06:46,522 INFO L208 MainTranslator]: Completed translation [2019-11-27 16:06:46,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:06:46 WrapperNode [2019-11-27 16:06:46,528 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 16:06:46,531 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 16:06:46,531 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 16:06:46,531 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 16:06:46,643 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:06:46" (1/1) ... [2019-11-27 16:06:46,655 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:06:46" (1/1) ... [2019-11-27 16:06:46,698 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 16:06:46,701 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 16:06:46,711 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 16:06:46,711 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 16:06:46,722 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:06:46" (1/1) ... [2019-11-27 16:06:46,722 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:06:46" (1/1) ... [2019-11-27 16:06:46,723 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:06:46" (1/1) ... [2019-11-27 16:06:46,724 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:06:46" (1/1) ... [2019-11-27 16:06:46,728 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:06:46" (1/1) ... [2019-11-27 16:06:46,731 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:06:46" (1/1) ... [2019-11-27 16:06:46,732 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:06:46" (1/1) ... [2019-11-27 16:06:46,734 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 16:06:46,745 INFO L168 Benchmark]: Toolchain (without parser) took 847.75 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 997.1 MB in the end (delta: -35.4 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 16:06:46,757 INFO L168 Benchmark]: CDTParser took 0.26 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 16:06:46,760 INFO L168 Benchmark]: CACSL2BoogieTranslator took 636.86 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 950.2 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 12.5 GB. [2019-11-27 16:06:46,763 INFO L168 Benchmark]: Boogie Procedure Inliner took 169.57 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 950.2 MB in the beginning and 997.1 MB in the end (delta: -46.9 MB). Peak memory consumption was 9.1 MB. Max. memory is 12.5 GB. [2019-11-27 16:06:46,765 INFO L168 Benchmark]: Boogie Preprocessor took 33.84 ms. Allocated memory is still 1.0 GB. Free memory is still 997.1 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 16:06:46,777 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 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 636.86 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 950.2 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 169.57 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 950.2 MB in the beginning and 997.1 MB in the end (delta: -46.9 MB). Peak memory consumption was 9.1 MB. Max. memory is 12.5 GB. * Boogie Preprocessor took 33.84 ms. Allocated memory is still 1.0 GB. Free memory is still 997.1 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 16:06:50,845 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 16:06:50,852 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 16:06:50,888 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 16:06:50,893 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 16:06:50,896 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 16:06:50,900 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 16:06:50,919 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 16:06:50,925 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 16:06:50,930 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 16:06:50,935 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 16:06:50,938 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 16:06:50,942 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 16:06:50,946 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 16:06:50,952 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 16:06:50,955 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 16:06:50,961 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 16:06:50,965 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 16:06:50,973 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 16:06:50,980 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 16:06:50,989 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 16:06:50,996 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 16:06:50,999 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 16:06:51,005 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 16:06:51,013 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 16:06:51,014 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 16:06:51,014 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 16:06:51,017 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 16:06:51,019 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 16:06:51,022 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 16:06:51,024 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 16:06:51,027 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 16:06:51,028 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 16:06:51,032 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 16:06:51,035 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 16:06:51,037 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 16:06:51,038 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 16:06:51,040 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 16:06:51,040 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 16:06:51,045 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 16:06:51,047 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 16:06:51,051 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-27 16:06:51,093 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 16:06:51,096 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 16:06:51,099 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 16:06:51,101 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 16:06:51,101 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 16:06:51,102 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 16:06:51,102 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 16:06:51,104 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 16:06:51,104 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 16:06:51,104 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 16:06:51,106 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 16:06:51,107 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 16:06:51,108 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-27 16:06:51,109 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-27 16:06:51,110 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 16:06:51,110 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 16:06:51,113 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 16:06:51,113 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 16:06:51,114 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 16:06:51,114 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 16:06:51,114 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 16:06:51,116 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 16:06:51,116 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 16:06:51,117 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 16:06:51,119 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 16:06:51,119 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 16:06:51,120 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-27 16:06:51,120 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-27 16:06:51,120 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 16:06:51,122 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-27 16:06:51,123 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 -> 4c885d5164b9c6a132aac8a890127abac4e8781e [2019-11-27 16:06:51,689 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 16:06:51,723 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 16:06:51,730 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 16:06:51,736 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 16:06:51,736 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 16:06:51,738 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/Muller_Kahan.c.p+cfa-reducer.c [2019-11-27 16:06:51,912 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4c3d93fc/e4c986b9b9214afaa53f98c13c9d93d6/FLAG6ed3c6048 [2019-11-27 16:06:52,973 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 16:06:52,974 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/Muller_Kahan.c.p+cfa-reducer.c [2019-11-27 16:06:52,990 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4c3d93fc/e4c986b9b9214afaa53f98c13c9d93d6/FLAG6ed3c6048 [2019-11-27 16:06:53,028 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4c3d93fc/e4c986b9b9214afaa53f98c13c9d93d6 [2019-11-27 16:06:53,039 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 16:06:53,042 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-11-27 16:06:53,048 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 16:06:53,049 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 16:06:53,056 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 16:06:53,059 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 04:06:53" (1/1) ... [2019-11-27 16:06:53,067 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b8145b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:06:53, skipping insertion in model container [2019-11-27 16:06:53,068 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 04:06:53" (1/1) ... [2019-11-27 16:06:53,088 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 16:06:53,142 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 16:06:53,609 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 16:06:53,631 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 16:06:53,684 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 16:06:53,725 INFO L208 MainTranslator]: Completed translation [2019-11-27 16:06:53,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:06:53 WrapperNode [2019-11-27 16:06:53,726 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 16:06:53,731 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 16:06:53,731 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 16:06:53,731 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 16:06:53,847 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:06:53" (1/1) ... [2019-11-27 16:06:53,865 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:06:53" (1/1) ... [2019-11-27 16:06:53,917 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 16:06:53,918 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 16:06:53,919 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 16:06:53,919 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 16:06:53,943 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:06:53" (1/1) ... [2019-11-27 16:06:53,944 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:06:53" (1/1) ... [2019-11-27 16:06:53,958 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:06:53" (1/1) ... [2019-11-27 16:06:53,959 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:06:53" (1/1) ... [2019-11-27 16:06:53,982 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:06:53" (1/1) ... [2019-11-27 16:06:53,987 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:06:53" (1/1) ... [2019-11-27 16:06:53,993 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:06:53" (1/1) ... [2019-11-27 16:06:54,001 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 16:06:54,017 INFO L168 Benchmark]: Toolchain (without parser) took 968.24 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 991.2 MB in the end (delta: -23.8 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 16:06:54,018 INFO L168 Benchmark]: CDTParser took 3.76 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 16:06:54,024 INFO L168 Benchmark]: CACSL2BoogieTranslator took 678.47 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 16:06:54,026 INFO L168 Benchmark]: Boogie Procedure Inliner took 186.30 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 997.0 MB in the end (delta: -41.0 MB). Peak memory consumption was 9.2 MB. Max. memory is 12.5 GB. [2019-11-27 16:06:54,033 INFO L168 Benchmark]: Boogie Preprocessor took 90.12 ms. Allocated memory is still 1.0 GB. Free memory was 997.0 MB in the beginning and 991.2 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 12.5 GB. [2019-11-27 16:06:54,042 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 3.76 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 678.47 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 186.30 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 997.0 MB in the end (delta: -41.0 MB). Peak memory consumption was 9.2 MB. Max. memory is 12.5 GB. * Boogie Preprocessor took 90.12 ms. Allocated memory is still 1.0 GB. Free memory was 997.0 MB in the beginning and 991.2 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...