./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/feedback_diverge.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version da95e156 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/feedback_diverge.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 25674b294c2f31eb6b0db7e6650e81b9ca992019 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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/feedback_diverge.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 25674b294c2f31eb6b0db7e6650e81b9ca992019 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.1.24-da95e15 [2019-11-27 09:45:03,028 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 09:45:03,034 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 09:45:03,058 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 09:45:03,060 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 09:45:03,070 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 09:45:03,073 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 09:45:03,090 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 09:45:03,096 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 09:45:03,103 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 09:45:03,105 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 09:45:03,108 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 09:45:03,112 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 09:45:03,118 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 09:45:03,120 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 09:45:03,128 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 09:45:03,134 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 09:45:03,138 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 09:45:03,147 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 09:45:03,154 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 09:45:03,164 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 09:45:03,170 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 09:45:03,173 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 09:45:03,177 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 09:45:03,185 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 09:45:03,185 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 09:45:03,188 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 09:45:03,190 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 09:45:03,191 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 09:45:03,192 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 09:45:03,195 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 09:45:03,196 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 09:45:03,197 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 09:45:03,200 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 09:45:03,203 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 09:45:03,205 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 09:45:03,210 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 09:45:03,210 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 09:45:03,210 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 09:45:03,214 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 09:45:03,217 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 09:45:03,218 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-27 09:45:03,256 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 09:45:03,257 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 09:45:03,262 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 09:45:03,263 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 09:45:03,266 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 09:45:03,266 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 09:45:03,267 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 09:45:03,267 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 09:45:03,267 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 09:45:03,267 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 09:45:03,269 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 09:45:03,269 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 09:45:03,271 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 09:45:03,271 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 09:45:03,272 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 09:45:03,272 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 09:45:03,272 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 09:45:03,274 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 09:45:03,274 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 09:45:03,274 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 09:45:03,275 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 09:45:03,275 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 09:45:03,277 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 09:45:03,277 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 09:45:03,277 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 09:45:03,278 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 09:45:03,278 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 09:45:03,280 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 09:45:03,280 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 -> 25674b294c2f31eb6b0db7e6650e81b9ca992019 [2019-11-27 09:45:03,822 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 09:45:03,847 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 09:45:03,857 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 09:45:03,860 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 09:45:03,862 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 09:45:03,863 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/feedback_diverge.c [2019-11-27 09:45:04,020 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22e41f189/fed6e4639ceb49a786a0cf035b7d7a41/FLAGdc1ccb677 [2019-11-27 09:45:05,084 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 09:45:05,084 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/feedback_diverge.c [2019-11-27 09:45:05,104 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22e41f189/fed6e4639ceb49a786a0cf035b7d7a41/FLAGdc1ccb677 [2019-11-27 09:45:05,143 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22e41f189/fed6e4639ceb49a786a0cf035b7d7a41 [2019-11-27 09:45:05,152 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 09:45:05,156 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-11-27 09:45:05,158 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 09:45:05,162 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 09:45:05,169 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 09:45:05,170 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 09:45:05" (1/1) ... [2019-11-27 09:45:05,179 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f019929 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:45:05, skipping insertion in model container [2019-11-27 09:45:05,179 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 09:45:05" (1/1) ... [2019-11-27 09:45:05,199 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 09:45:05,244 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 09:45:05,726 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 09:45:05,735 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 09:45:05,784 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 09:45:05,816 INFO L208 MainTranslator]: Completed translation [2019-11-27 09:45:05,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:45:05 WrapperNode [2019-11-27 09:45:05,823 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 09:45:05,824 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 09:45:05,825 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 09:45:05,825 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 09:45:05,928 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:45:05" (1/1) ... [2019-11-27 09:45:05,942 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:45:05" (1/1) ... [2019-11-27 09:45:05,988 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 09:45:05,993 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 09:45:05,993 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 09:45:05,993 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 09:45:06,016 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:45:05" (1/1) ... [2019-11-27 09:45:06,017 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:45:05" (1/1) ... [2019-11-27 09:45:06,018 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:45:05" (1/1) ... [2019-11-27 09:45:06,019 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:45:05" (1/1) ... [2019-11-27 09:45:06,032 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:45:05" (1/1) ... [2019-11-27 09:45:06,043 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:45:05" (1/1) ... [2019-11-27 09:45:06,050 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:45:05" (1/1) ... [2019-11-27 09:45:06,068 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 09:45:06,078 INFO L168 Benchmark]: Toolchain (without parser) took 917.06 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). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 09:45:06,080 INFO L168 Benchmark]: CDTParser took 1.53 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 09:45:06,082 INFO L168 Benchmark]: CACSL2BoogieTranslator took 665.33 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 09:45:06,085 INFO L168 Benchmark]: Boogie Procedure Inliner took 168.23 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 997.0 MB in the end (delta: -46.8 MB). Peak memory consumption was 9.1 MB. Max. memory is 12.5 GB. [2019-11-27 09:45:06,090 INFO L168 Benchmark]: Boogie Preprocessor took 75.76 ms. Allocated memory is still 1.0 GB. Free memory was 997.0 MB in the beginning and 991.3 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 12.5 GB. [2019-11-27 09:45:06,101 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.53 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 665.33 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 168.23 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 997.0 MB in the end (delta: -46.8 MB). Peak memory consumption was 9.1 MB. Max. memory is 12.5 GB. * Boogie Preprocessor took 75.76 ms. Allocated memory is still 1.0 GB. Free memory was 997.0 MB in the beginning and 991.3 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-da95e15 [2019-11-27 09:45:09,885 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 09:45:09,890 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 09:45:09,920 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 09:45:09,923 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 09:45:09,926 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 09:45:09,930 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 09:45:09,959 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 09:45:09,963 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 09:45:09,971 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 09:45:09,973 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 09:45:09,978 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 09:45:09,979 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 09:45:09,984 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 09:45:09,988 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 09:45:09,991 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 09:45:09,996 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 09:45:09,999 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 09:45:10,008 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 09:45:10,013 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 09:45:10,021 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 09:45:10,027 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 09:45:10,029 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 09:45:10,035 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 09:45:10,042 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 09:45:10,043 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 09:45:10,043 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 09:45:10,046 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 09:45:10,047 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 09:45:10,051 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 09:45:10,051 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 09:45:10,052 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 09:45:10,055 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 09:45:10,057 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 09:45:10,061 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 09:45:10,062 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 09:45:10,063 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 09:45:10,063 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 09:45:10,065 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 09:45:10,070 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 09:45:10,072 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 09:45:10,075 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-27 09:45:10,115 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 09:45:10,116 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 09:45:10,121 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 09:45:10,122 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 09:45:10,122 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 09:45:10,124 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 09:45:10,124 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 09:45:10,125 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 09:45:10,125 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 09:45:10,127 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 09:45:10,128 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 09:45:10,128 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 09:45:10,129 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-27 09:45:10,129 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-27 09:45:10,132 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 09:45:10,132 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 09:45:10,132 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 09:45:10,133 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 09:45:10,133 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 09:45:10,133 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 09:45:10,134 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 09:45:10,134 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 09:45:10,135 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 09:45:10,135 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 09:45:10,138 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 09:45:10,138 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 09:45:10,138 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-27 09:45:10,139 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-27 09:45:10,139 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 09:45:10,139 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-27 09:45:10,141 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 -> 25674b294c2f31eb6b0db7e6650e81b9ca992019 [2019-11-27 09:45:10,731 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 09:45:10,761 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 09:45:10,768 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 09:45:10,773 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 09:45:10,774 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 09:45:10,776 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/feedback_diverge.c [2019-11-27 09:45:10,934 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a845f9698/5d8f9a65917448d18ce8ba565be9979a/FLAGffda9af91 [2019-11-27 09:45:12,012 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 09:45:12,013 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/feedback_diverge.c [2019-11-27 09:45:12,026 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a845f9698/5d8f9a65917448d18ce8ba565be9979a/FLAGffda9af91 [2019-11-27 09:45:12,067 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a845f9698/5d8f9a65917448d18ce8ba565be9979a [2019-11-27 09:45:12,081 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 09:45:12,083 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-11-27 09:45:12,085 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 09:45:12,089 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 09:45:12,093 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 09:45:12,097 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 09:45:12" (1/1) ... [2019-11-27 09:45:12,105 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63b80273 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:45:12, skipping insertion in model container [2019-11-27 09:45:12,106 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 09:45:12" (1/1) ... [2019-11-27 09:45:12,125 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 09:45:12,171 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 09:45:12,653 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 09:45:12,671 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 09:45:12,725 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 09:45:12,766 INFO L208 MainTranslator]: Completed translation [2019-11-27 09:45:12,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:45:12 WrapperNode [2019-11-27 09:45:12,770 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 09:45:12,771 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 09:45:12,771 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 09:45:12,774 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 09:45:12,933 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:45:12" (1/1) ... [2019-11-27 09:45:12,952 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:45:12" (1/1) ... [2019-11-27 09:45:13,001 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 09:45:13,004 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 09:45:13,004 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 09:45:13,004 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 09:45:13,023 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:45:12" (1/1) ... [2019-11-27 09:45:13,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:45:12" (1/1) ... [2019-11-27 09:45:13,036 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:45:12" (1/1) ... [2019-11-27 09:45:13,037 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:45:12" (1/1) ... [2019-11-27 09:45:13,056 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:45:12" (1/1) ... [2019-11-27 09:45:13,064 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:45:12" (1/1) ... [2019-11-27 09:45:13,067 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:45:12" (1/1) ... [2019-11-27 09:45:13,076 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 09:45:13,085 INFO L168 Benchmark]: Toolchain (without parser) took 996.27 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 09:45:13,086 INFO L168 Benchmark]: CDTParser took 1.17 ms. Allocated memory is still 1.0 GB. Free memory is still 994.6 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 09:45:13,087 INFO L168 Benchmark]: CACSL2BoogieTranslator took 684.92 ms. Allocated memory is still 1.0 GB. Free memory was 967.4 MB in the beginning and 955.8 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 12.5 GB. [2019-11-27 09:45:13,089 INFO L168 Benchmark]: Boogie Procedure Inliner took 232.92 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 955.8 MB in the beginning and 996.9 MB in the end (delta: -41.1 MB). Peak memory consumption was 9.2 MB. Max. memory is 12.5 GB. [2019-11-27 09:45:13,090 INFO L168 Benchmark]: Boogie Preprocessor took 72.97 ms. Allocated memory is still 1.0 GB. Free memory was 996.9 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 09:45:13,099 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.17 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 684.92 ms. Allocated memory is still 1.0 GB. Free memory was 967.4 MB in the beginning and 955.8 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 12.5 GB. * Boogie Procedure Inliner took 232.92 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 955.8 MB in the beginning and 996.9 MB in the end (delta: -41.1 MB). Peak memory consumption was 9.2 MB. Max. memory is 12.5 GB. * Boogie Preprocessor took 72.97 ms. Allocated memory is still 1.0 GB. Free memory was 996.9 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...