./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 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/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-da95e15 [2019-11-27 09:45:13,146 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 09:45:13,151 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 09:45:13,187 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 09:45:13,188 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 09:45:13,192 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 09:45:13,199 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 09:45:13,213 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 09:45:13,219 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 09:45:13,224 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 09:45:13,228 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 09:45:13,234 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 09:45:13,237 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 09:45:13,241 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 09:45:13,247 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 09:45:13,251 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 09:45:13,254 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 09:45:13,259 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 09:45:13,268 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 09:45:13,274 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 09:45:13,283 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 09:45:13,287 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 09:45:13,292 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 09:45:13,294 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 09:45:13,303 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 09:45:13,304 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 09:45:13,304 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 09:45:13,307 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 09:45:13,309 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 09:45:13,310 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 09:45:13,314 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 09:45:13,315 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 09:45:13,316 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 09:45:13,320 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 09:45:13,322 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 09:45:13,324 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 09:45:13,325 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 09:45:13,327 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 09:45:13,327 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 09:45:13,332 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 09:45:13,335 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 09:45:13,336 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-27 09:45:13,375 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 09:45:13,379 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 09:45:13,382 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 09:45:13,384 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 09:45:13,384 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 09:45:13,385 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 09:45:13,385 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 09:45:13,386 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 09:45:13,386 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 09:45:13,386 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 09:45:13,389 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 09:45:13,389 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 09:45:13,390 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 09:45:13,390 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 09:45:13,391 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 09:45:13,393 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 09:45:13,393 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 09:45:13,394 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 09:45:13,394 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 09:45:13,394 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 09:45:13,394 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 09:45:13,397 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 09:45:13,397 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 09:45:13,398 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 09:45:13,398 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 09:45:13,398 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 09:45:13,398 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 09:45:13,399 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 09:45:13,402 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 [2019-11-27 09:45:13,962 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 09:45:13,990 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 09:45:13,999 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 09:45:14,003 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 09:45:14,005 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 09:45:14,006 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/interpolation2.c.p+cfa-reducer.c [2019-11-27 09:45:14,169 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e94b975f/fcacc2f7c0a84e3a8f3a046517b66614/FLAG4a8244410 [2019-11-27 09:45:15,273 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 09:45:15,276 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/interpolation2.c.p+cfa-reducer.c [2019-11-27 09:45:15,295 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e94b975f/fcacc2f7c0a84e3a8f3a046517b66614/FLAG4a8244410 [2019-11-27 09:45:15,331 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e94b975f/fcacc2f7c0a84e3a8f3a046517b66614 [2019-11-27 09:45:15,336 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 09:45:15,338 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-11-27 09:45:15,350 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 09:45:15,350 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 09:45:15,354 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 09:45:15,359 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 09:45:15" (1/1) ... [2019-11-27 09:45:15,367 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@673d4137 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:45:15, skipping insertion in model container [2019-11-27 09:45:15,368 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 09:45:15" (1/1) ... [2019-11-27 09:45:15,388 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 09:45:15,441 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 09:45:15,973 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 09:45:15,991 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 09:45:16,104 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 09:45:16,156 INFO L208 MainTranslator]: Completed translation [2019-11-27 09:45:16,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:45:16 WrapperNode [2019-11-27 09:45:16,158 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 09:45:16,160 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 09:45:16,160 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 09:45:16,161 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 09:45:16,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:45:16" (1/1) ... [2019-11-27 09:45:16,212 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:45:16" (1/1) ... [2019-11-27 09:45:16,265 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 09:45:16,267 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 09:45:16,267 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 09:45:16,268 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 09:45:16,279 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:45:16" (1/1) ... [2019-11-27 09:45:16,280 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:45:16" (1/1) ... [2019-11-27 09:45:16,285 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:45:16" (1/1) ... [2019-11-27 09:45:16,286 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:45:16" (1/1) ... [2019-11-27 09:45:16,322 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:45:16" (1/1) ... [2019-11-27 09:45:16,328 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:45:16" (1/1) ... [2019-11-27 09:45:16,342 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:45:16" (1/1) ... [2019-11-27 09:45:16,345 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 09:45:16,353 INFO L168 Benchmark]: Toolchain (without parser) took 1012.61 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 961.7 MB in the beginning and 985.9 MB in the end (delta: -24.2 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 09:45:16,368 INFO L168 Benchmark]: CDTParser took 3.56 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 09:45:16,370 INFO L168 Benchmark]: CACSL2BoogieTranslator took 808.38 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 991.6 MB in the end (delta: -29.9 MB). Peak memory consumption was 20.3 MB. Max. memory is 12.5 GB. [2019-11-27 09:45:16,376 INFO L168 Benchmark]: Boogie Procedure Inliner took 106.64 ms. Allocated memory is still 1.0 GB. Free memory is still 991.6 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 09:45:16,377 INFO L168 Benchmark]: Boogie Preprocessor took 78.11 ms. Allocated memory is still 1.0 GB. Free memory was 991.6 MB in the beginning and 985.9 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 12.5 GB. [2019-11-27 09:45:16,388 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 3.56 ms. Allocated memory is still 1.0 GB. Free memory is still 988.9 MB. There was no memory consumed. Max. memory is 12.5 GB. * CACSL2BoogieTranslator took 808.38 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 991.6 MB in the end (delta: -29.9 MB). Peak memory consumption was 20.3 MB. Max. memory is 12.5 GB. * Boogie Procedure Inliner took 106.64 ms. Allocated memory is still 1.0 GB. Free memory is still 991.6 MB. There was no memory consumed. Max. memory is 12.5 GB. * Boogie Preprocessor took 78.11 ms. Allocated memory is still 1.0 GB. Free memory was 991.6 MB in the beginning and 985.9 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 09:45:20,304 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 09:45:20,311 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 09:45:20,336 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 09:45:20,338 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 09:45:20,352 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 09:45:20,358 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 09:45:20,374 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 09:45:20,377 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 09:45:20,383 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 09:45:20,386 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 09:45:20,393 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 09:45:20,393 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 09:45:20,400 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 09:45:20,404 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 09:45:20,410 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 09:45:20,412 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 09:45:20,417 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 09:45:20,424 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 09:45:20,432 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 09:45:20,440 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 09:45:20,449 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 09:45:20,454 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 09:45:20,457 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 09:45:20,464 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 09:45:20,466 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 09:45:20,466 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 09:45:20,472 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 09:45:20,473 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 09:45:20,474 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 09:45:20,474 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 09:45:20,475 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 09:45:20,480 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 09:45:20,481 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 09:45:20,485 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 09:45:20,486 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 09:45:20,488 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 09:45:20,490 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 09:45:20,490 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 09:45:20,491 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 09:45:20,496 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 09:45:20,497 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-27 09:45:20,538 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 09:45:20,541 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 09:45:20,547 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 09:45:20,547 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 09:45:20,548 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 09:45:20,548 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 09:45:20,548 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 09:45:20,551 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 09:45:20,551 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 09:45:20,551 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 09:45:20,553 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 09:45:20,553 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 09:45:20,554 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-27 09:45:20,554 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-27 09:45:20,556 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 09:45:20,556 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 09:45:20,556 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 09:45:20,559 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 09:45:20,559 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 09:45:20,560 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 09:45:20,560 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 09:45:20,560 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 09:45:20,561 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 09:45:20,561 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 09:45:20,564 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 09:45:20,564 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 09:45:20,564 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-27 09:45:20,565 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-27 09:45:20,565 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 09:45:20,566 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-27 09:45:20,570 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 [2019-11-27 09:45:21,199 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 09:45:21,228 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 09:45:21,238 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 09:45:21,242 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 09:45:21,245 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 09:45:21,247 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/interpolation2.c.p+cfa-reducer.c [2019-11-27 09:45:21,413 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f8a96b0a/d37bce8c7e1b4929aba16008117593df/FLAG6b68f7871 [2019-11-27 09:45:22,505 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 09:45:22,508 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/interpolation2.c.p+cfa-reducer.c [2019-11-27 09:45:22,526 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f8a96b0a/d37bce8c7e1b4929aba16008117593df/FLAG6b68f7871 [2019-11-27 09:45:22,640 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f8a96b0a/d37bce8c7e1b4929aba16008117593df [2019-11-27 09:45:22,647 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 09:45:22,649 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-11-27 09:45:22,661 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 09:45:22,661 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 09:45:22,669 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 09:45:22,670 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 09:45:22" (1/1) ... [2019-11-27 09:45:22,677 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38f933ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:45:22, skipping insertion in model container [2019-11-27 09:45:22,677 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 09:45:22" (1/1) ... [2019-11-27 09:45:22,687 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 09:45:22,747 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 09:45:23,262 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 09:45:23,287 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 09:45:23,484 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 09:45:23,530 INFO L208 MainTranslator]: Completed translation [2019-11-27 09:45:23,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:45:23 WrapperNode [2019-11-27 09:45:23,531 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 09:45:23,532 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 09:45:23,532 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 09:45:23,532 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 09:45:23,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:45:23" (1/1) ... [2019-11-27 09:45:23,584 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:45:23" (1/1) ... [2019-11-27 09:45:23,631 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 09:45:23,632 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 09:45:23,632 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 09:45:23,632 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 09:45:23,643 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:45:23" (1/1) ... [2019-11-27 09:45:23,643 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:45:23" (1/1) ... [2019-11-27 09:45:23,666 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:45:23" (1/1) ... [2019-11-27 09:45:23,667 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:45:23" (1/1) ... [2019-11-27 09:45:23,701 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:45:23" (1/1) ... [2019-11-27 09:45:23,709 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:45:23" (1/1) ... [2019-11-27 09:45:23,716 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:45:23" (1/1) ... [2019-11-27 09:45:23,724 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 09:45:23,731 INFO L168 Benchmark]: Toolchain (without parser) took 1081.66 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 960.2 MB in the beginning and 984.2 MB in the end (delta: -23.9 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 09:45:23,734 INFO L168 Benchmark]: CDTParser took 0.36 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 09:45:23,738 INFO L168 Benchmark]: CACSL2BoogieTranslator took 870.49 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 960.2 MB in the beginning and 991.3 MB in the end (delta: -31.1 MB). Peak memory consumption was 20.6 MB. Max. memory is 12.5 GB. [2019-11-27 09:45:23,740 INFO L168 Benchmark]: Boogie Procedure Inliner took 99.57 ms. Allocated memory is still 1.0 GB. Free memory is still 991.3 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 09:45:23,745 INFO L168 Benchmark]: Boogie Preprocessor took 92.93 ms. Allocated memory is still 1.0 GB. Free memory was 991.3 MB in the beginning and 984.2 MB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 12.5 GB. [2019-11-27 09:45:23,753 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 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 870.49 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 960.2 MB in the beginning and 991.3 MB in the end (delta: -31.1 MB). Peak memory consumption was 20.6 MB. Max. memory is 12.5 GB. * Boogie Procedure Inliner took 99.57 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 92.93 ms. Allocated memory is still 1.0 GB. Free memory was 991.3 MB in the beginning and 984.2 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...