./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/recursive-simple/id_i20_o20-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 025d5a27 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/id_i20_o20-2.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 7d05936c4bb1bb97a4b24ebc11d02c0e844c743b ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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/recursive-simple/id_i20_o20-2.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 7d05936c4bb1bb97a4b24ebc11d02c0e844c743b ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.1.24-025d5a2 [2019-11-26 17:12:22,414 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 17:12:22,418 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 17:12:22,442 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 17:12:22,444 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 17:12:22,460 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 17:12:22,466 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 17:12:22,481 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 17:12:22,487 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 17:12:22,492 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 17:12:22,493 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 17:12:22,498 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 17:12:22,499 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 17:12:22,506 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 17:12:22,510 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 17:12:22,516 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 17:12:22,520 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 17:12:22,526 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 17:12:22,530 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 17:12:22,539 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 17:12:22,548 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 17:12:22,557 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 17:12:22,559 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 17:12:22,561 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 17:12:22,569 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 17:12:22,572 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 17:12:22,572 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 17:12:22,574 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 17:12:22,574 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 17:12:22,575 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 17:12:22,577 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 17:12:22,579 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 17:12:22,580 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 17:12:22,585 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 17:12:22,587 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 17:12:22,589 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 17:12:22,590 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 17:12:22,590 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 17:12:22,592 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 17:12:22,596 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 17:12:22,601 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 17:12:22,602 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-26 17:12:22,638 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 17:12:22,640 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 17:12:22,644 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-26 17:12:22,645 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-26 17:12:22,645 INFO L138 SettingsManager]: * Use SBE=true [2019-11-26 17:12:22,648 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 17:12:22,648 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 17:12:22,648 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 17:12:22,649 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 17:12:22,649 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 17:12:22,649 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 17:12:22,650 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 17:12:22,650 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 17:12:22,650 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 17:12:22,653 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 17:12:22,653 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-26 17:12:22,653 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 17:12:22,654 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 17:12:22,656 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-26 17:12:22,656 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 17:12:22,656 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 17:12:22,657 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 17:12:22,657 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 17:12:22,657 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 17:12:22,657 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 17:12:22,659 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-26 17:12:22,659 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 17:12:22,659 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 17:12:22,659 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 -> 7d05936c4bb1bb97a4b24ebc11d02c0e844c743b [2019-11-26 17:12:23,158 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 17:12:23,185 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 17:12:23,194 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 17:12:23,199 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 17:12:23,200 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 17:12:23,201 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-simple/id_i20_o20-2.c [2019-11-26 17:12:23,352 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35bdd2a61/84f7873cb6a943d79853aab0d798debb/FLAG6984965b7 [2019-11-26 17:12:24,294 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 17:12:24,298 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/id_i20_o20-2.c [2019-11-26 17:12:24,313 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35bdd2a61/84f7873cb6a943d79853aab0d798debb/FLAG6984965b7 [2019-11-26 17:12:24,490 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35bdd2a61/84f7873cb6a943d79853aab0d798debb [2019-11-26 17:12:24,497 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 17:12:24,502 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-11-26 17:12:24,505 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 17:12:24,507 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 17:12:24,514 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 17:12:24,517 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 05:12:24" (1/1) ... [2019-11-26 17:12:24,526 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79f65d96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:12:24, skipping insertion in model container [2019-11-26 17:12:24,527 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 05:12:24" (1/1) ... [2019-11-26 17:12:24,546 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 17:12:24,586 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-26 17:12:24,987 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 17:12:25,002 INFO L203 MainTranslator]: Completed pre-run [2019-11-26 17:12:25,041 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 17:12:25,076 INFO L208 MainTranslator]: Completed translation [2019-11-26 17:12:25,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:12:25 WrapperNode [2019-11-26 17:12:25,077 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 17:12:25,078 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 17:12:25,081 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 17:12:25,081 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 17:12:25,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:12:25" (1/1) ... [2019-11-26 17:12:25,117 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:12:25" (1/1) ... [2019-11-26 17:12:25,159 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 17:12:25,162 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 17:12:25,163 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 17:12:25,163 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 17:12:25,267 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:12:25" (1/1) ... [2019-11-26 17:12:25,268 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:12:25" (1/1) ... [2019-11-26 17:12:25,268 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:12:25" (1/1) ... [2019-11-26 17:12:25,269 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:12:25" (1/1) ... [2019-11-26 17:12:25,271 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:12:25" (1/1) ... [2019-11-26 17:12:25,273 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:12:25" (1/1) ... [2019-11-26 17:12:25,274 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:12:25" (1/1) ... [2019-11-26 17:12:25,276 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 17:12:25,295 INFO L168 Benchmark]: Toolchain (without parser) took 776.41 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 996.9 MB in the end (delta: -29.5 MB). Peak memory consumption was 20.7 MB. Max. memory is 12.5 GB. [2019-11-26 17:12:25,298 INFO L168 Benchmark]: CDTParser took 1.33 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. [2019-11-26 17:12:25,301 INFO L168 Benchmark]: CACSL2BoogieTranslator took 572.62 ms. Allocated memory is still 1.0 GB. Free memory was 967.4 MB in the beginning and 956.0 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 12.5 GB. [2019-11-26 17:12:25,303 INFO L168 Benchmark]: Boogie Procedure Inliner took 83.24 ms. Allocated memory is still 1.0 GB. Free memory is still 956.0 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-26 17:12:25,308 INFO L168 Benchmark]: Boogie Preprocessor took 113.86 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 956.0 MB in the beginning and 996.9 MB in the end (delta: -41.0 MB). Peak memory consumption was 9.2 MB. Max. memory is 12.5 GB. [2019-11-26 17:12:25,320 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.33 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 572.62 ms. Allocated memory is still 1.0 GB. Free memory was 967.4 MB in the beginning and 956.0 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 12.5 GB. * Boogie Procedure Inliner took 83.24 ms. Allocated memory is still 1.0 GB. Free memory is still 956.0 MB. There was no memory consumed. Max. memory is 12.5 GB. * Boogie Preprocessor took 113.86 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 956.0 MB in the beginning and 996.9 MB in the end (delta: -41.0 MB). Peak memory consumption was 9.2 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 0.1.24-025d5a2 [2019-11-26 17:12:29,133 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 17:12:29,139 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 17:12:29,164 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 17:12:29,164 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 17:12:29,167 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 17:12:29,180 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 17:12:29,198 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 17:12:29,203 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 17:12:29,209 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 17:12:29,211 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 17:12:29,216 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 17:12:29,217 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 17:12:29,222 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 17:12:29,226 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 17:12:29,232 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 17:12:29,234 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 17:12:29,238 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 17:12:29,244 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 17:12:29,252 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 17:12:29,259 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 17:12:29,267 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 17:12:29,269 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 17:12:29,274 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 17:12:29,281 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 17:12:29,281 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 17:12:29,282 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 17:12:29,286 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 17:12:29,286 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 17:12:29,291 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 17:12:29,291 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 17:12:29,292 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 17:12:29,293 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 17:12:29,296 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 17:12:29,299 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 17:12:29,299 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 17:12:29,302 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 17:12:29,304 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 17:12:29,304 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 17:12:29,307 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 17:12:29,313 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 17:12:29,314 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-26 17:12:29,354 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 17:12:29,354 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 17:12:29,360 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-26 17:12:29,360 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-26 17:12:29,360 INFO L138 SettingsManager]: * Use SBE=true [2019-11-26 17:12:29,363 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 17:12:29,363 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 17:12:29,364 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 17:12:29,364 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 17:12:29,364 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 17:12:29,366 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 17:12:29,368 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 17:12:29,368 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-26 17:12:29,369 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-26 17:12:29,369 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 17:12:29,369 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 17:12:29,370 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-26 17:12:29,370 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 17:12:29,371 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 17:12:29,371 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-26 17:12:29,374 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 17:12:29,374 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 17:12:29,374 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 17:12:29,375 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 17:12:29,375 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 17:12:29,375 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 17:12:29,375 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-26 17:12:29,376 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-26 17:12:29,376 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 17:12:29,376 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 17:12:29,380 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 -> 7d05936c4bb1bb97a4b24ebc11d02c0e844c743b [2019-11-26 17:12:30,025 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 17:12:30,055 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 17:12:30,061 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 17:12:30,066 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 17:12:30,070 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 17:12:30,072 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-simple/id_i20_o20-2.c [2019-11-26 17:12:30,220 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a16296eda/5b95c49f2b514831bb129837966689b0/FLAG50ab3a33d [2019-11-26 17:12:31,170 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 17:12:31,171 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/id_i20_o20-2.c [2019-11-26 17:12:31,185 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a16296eda/5b95c49f2b514831bb129837966689b0/FLAG50ab3a33d [2019-11-26 17:12:31,363 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a16296eda/5b95c49f2b514831bb129837966689b0 [2019-11-26 17:12:31,374 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 17:12:31,376 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-11-26 17:12:31,384 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 17:12:31,385 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 17:12:31,394 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 17:12:31,395 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 05:12:31" (1/1) ... [2019-11-26 17:12:31,403 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bb904a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:12:31, skipping insertion in model container [2019-11-26 17:12:31,404 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 05:12:31" (1/1) ... [2019-11-26 17:12:31,428 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 17:12:31,463 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-26 17:12:31,816 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 17:12:31,828 INFO L203 MainTranslator]: Completed pre-run [2019-11-26 17:12:31,866 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 17:12:31,898 INFO L208 MainTranslator]: Completed translation [2019-11-26 17:12:31,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:12:31 WrapperNode [2019-11-26 17:12:31,902 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 17:12:31,903 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 17:12:31,904 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 17:12:31,904 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 17:12:31,928 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:12:31" (1/1) ... [2019-11-26 17:12:31,943 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:12:31" (1/1) ... [2019-11-26 17:12:32,042 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 17:12:32,043 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 17:12:32,043 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 17:12:32,043 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 17:12:32,057 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:12:31" (1/1) ... [2019-11-26 17:12:32,063 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:12:31" (1/1) ... [2019-11-26 17:12:32,065 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:12:31" (1/1) ... [2019-11-26 17:12:32,066 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:12:31" (1/1) ... [2019-11-26 17:12:32,070 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:12:31" (1/1) ... [2019-11-26 17:12:32,073 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:12:31" (1/1) ... [2019-11-26 17:12:32,074 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:12:31" (1/1) ... [2019-11-26 17:12:32,076 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 17:12:32,085 INFO L168 Benchmark]: Toolchain (without parser) took 702.80 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 996.9 MB in the end (delta: -29.5 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-26 17:12:32,099 INFO L168 Benchmark]: CDTParser took 0.30 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. [2019-11-26 17:12:32,103 INFO L168 Benchmark]: CACSL2BoogieTranslator took 518.58 ms. Allocated memory is still 1.0 GB. Free memory was 967.4 MB in the beginning and 955.9 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 12.5 GB. [2019-11-26 17:12:32,106 INFO L168 Benchmark]: Boogie Procedure Inliner took 139.19 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 955.9 MB in the beginning and 996.9 MB in the end (delta: -41.0 MB). Peak memory consumption was 9.2 MB. Max. memory is 12.5 GB. [2019-11-26 17:12:32,108 INFO L168 Benchmark]: Boogie Preprocessor took 33.64 ms. Allocated memory is still 1.0 GB. Free memory is still 996.9 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-26 17:12:32,120 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 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 518.58 ms. Allocated memory is still 1.0 GB. Free memory was 967.4 MB in the beginning and 955.9 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 139.19 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 955.9 MB in the beginning and 996.9 MB in the end (delta: -41.0 MB). Peak memory consumption was 9.2 MB. Max. memory is 12.5 GB. * Boogie Preprocessor took 33.64 ms. Allocated memory is still 1.0 GB. Free memory is still 996.9 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...