./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/recursive-simple/fibo_2calls_4-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c6eb4584 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/recursive-simple/fibo_2calls_4-2.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 7a7b79fb8a331a00295fb9ddfb653e17bda3c30d ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.1.24-c6eb458-m [2019-11-16 21:25:39,226 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-16 21:25:39,232 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-16 21:25:39,265 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-16 21:25:39,269 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-16 21:25:39,271 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-16 21:25:39,276 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-16 21:25:39,289 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-16 21:25:39,297 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-16 21:25:39,304 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-16 21:25:39,305 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-16 21:25:39,310 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-16 21:25:39,310 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-16 21:25:39,315 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-16 21:25:39,317 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-16 21:25:39,320 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-16 21:25:39,323 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-16 21:25:39,326 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-16 21:25:39,330 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-16 21:25:39,336 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-16 21:25:39,346 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-16 21:25:39,352 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-16 21:25:39,356 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-16 21:25:39,359 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-16 21:25:39,368 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-16 21:25:39,368 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-16 21:25:39,369 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-16 21:25:39,373 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-16 21:25:39,373 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-16 21:25:39,377 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-16 21:25:39,377 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-16 21:25:39,378 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-16 21:25:39,382 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-16 21:25:39,383 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-16 21:25:39,388 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-16 21:25:39,388 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-16 21:25:39,391 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-16 21:25:39,392 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-16 21:25:39,394 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-16 21:25:39,395 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-16 21:25:39,398 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-16 21:25:39,400 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-16 21:25:39,452 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-16 21:25:39,459 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-16 21:25:39,461 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-16 21:25:39,464 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-16 21:25:39,467 INFO L138 SettingsManager]: * Use SBE=true [2019-11-16 21:25:39,467 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-16 21:25:39,468 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-16 21:25:39,468 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-16 21:25:39,468 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-16 21:25:39,469 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-16 21:25:39,469 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-16 21:25:39,472 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-16 21:25:39,474 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-16 21:25:39,474 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-16 21:25:39,474 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-16 21:25:39,475 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-16 21:25:39,475 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-16 21:25:39,475 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-16 21:25:39,475 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-16 21:25:39,479 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-16 21:25:39,479 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-16 21:25:39,480 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-16 21:25:39,480 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-16 21:25:39,481 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-16 21:25:39,481 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-16 21:25:39,481 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-16 21:25:39,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-16 21:25:39,482 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-16 21:25:39,483 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 -> 7a7b79fb8a331a00295fb9ddfb653e17bda3c30d [2019-11-16 21:25:40,041 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-16 21:25:40,070 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-16 21:25:40,079 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-16 21:25:40,083 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-16 21:25:40,085 INFO L275 PluginConnector]: CDTParser initialized [2019-11-16 21:25:40,089 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-simple/fibo_2calls_4-2.c [2019-11-16 21:25:40,254 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd793632c/d4aa3ccdd3884a4c9d29ac9636e9af0c/FLAG9cdc152d9 [2019-11-16 21:25:41,323 INFO L306 CDTParser]: Found 1 translation units. [2019-11-16 21:25:41,325 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/fibo_2calls_4-2.c [2019-11-16 21:25:41,345 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd793632c/d4aa3ccdd3884a4c9d29ac9636e9af0c/FLAG9cdc152d9 [2019-11-16 21:25:41,383 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd793632c/d4aa3ccdd3884a4c9d29ac9636e9af0c [2019-11-16 21:25:41,392 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-16 21:25:41,397 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-11-16 21:25:41,403 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-16 21:25:41,403 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-16 21:25:41,412 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-16 21:25:41,415 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:25:41" (1/1) ... [2019-11-16 21:25:41,424 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41644e90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:25:41, skipping insertion in model container [2019-11-16 21:25:41,424 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:25:41" (1/1) ... [2019-11-16 21:25:41,444 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-16 21:25:41,490 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-16 21:25:41,958 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 21:25:41,973 INFO L188 MainTranslator]: Completed pre-run [2019-11-16 21:25:42,017 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 21:25:42,040 INFO L192 MainTranslator]: Completed translation [2019-11-16 21:25:42,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:25:42 WrapperNode [2019-11-16 21:25:42,041 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-16 21:25:42,048 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-16 21:25:42,049 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-16 21:25:42,049 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-16 21:25:42,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:25:42" (1/1) ... [2019-11-16 21:25:42,068 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:25:42" (1/1) ... [2019-11-16 21:25:42,219 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-16 21:25:42,224 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-16 21:25:42,224 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-16 21:25:42,225 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-16 21:25:42,258 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:25:42" (1/1) ... [2019-11-16 21:25:42,258 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:25:42" (1/1) ... [2019-11-16 21:25:42,261 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:25:42" (1/1) ... [2019-11-16 21:25:42,264 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:25:42" (1/1) ... [2019-11-16 21:25:42,272 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:25:42" (1/1) ... [2019-11-16 21:25:42,282 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:25:42" (1/1) ... [2019-11-16 21:25:42,291 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:25:42" (1/1) ... [2019-11-16 21:25:42,301 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-16 21:25:42,312 INFO L168 Benchmark]: Toolchain (without parser) took 907.96 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 991.0 MB in the end (delta: -29.3 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-16 21:25:42,315 INFO L168 Benchmark]: CDTParser took 0.54 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. [2019-11-16 21:25:42,320 INFO L168 Benchmark]: CACSL2BoogieTranslator took 638.68 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. [2019-11-16 21:25:42,323 INFO L168 Benchmark]: Boogie Procedure Inliner took 175.49 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 950.2 MB in the beginning and 991.0 MB in the end (delta: -40.8 MB). Peak memory consumption was 9.4 MB. Max. memory is 12.5 GB. [2019-11-16 21:25:42,327 INFO L168 Benchmark]: Boogie Preprocessor took 77.92 ms. Allocated memory is still 1.0 GB. Free memory is still 991.0 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-16 21:25:42,339 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54 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 638.68 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 175.49 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 950.2 MB in the beginning and 991.0 MB in the end (delta: -40.8 MB). Peak memory consumption was 9.4 MB. Max. memory is 12.5 GB. * Boogie Preprocessor took 77.92 ms. Allocated memory is still 1.0 GB. Free memory is still 991.0 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...