./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/recursive-simple/afterrec-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 509859d6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/recursive-simple/afterrec-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 30601811463d073f869bef96a3132d41c5e6f5ce ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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/afterrec-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 30601811463d073f869bef96a3132d41c5e6f5ce ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.1.24-509859d [2019-11-27 16:21:27,401 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 16:21:27,407 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 16:21:27,431 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 16:21:27,433 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 16:21:27,435 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 16:21:27,452 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 16:21:27,469 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 16:21:27,471 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 16:21:27,480 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 16:21:27,482 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 16:21:27,486 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 16:21:27,489 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 16:21:27,493 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 16:21:27,498 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 16:21:27,500 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 16:21:27,504 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 16:21:27,505 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 16:21:27,512 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 16:21:27,519 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 16:21:27,527 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 16:21:27,534 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 16:21:27,536 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 16:21:27,540 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 16:21:27,548 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 16:21:27,551 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 16:21:27,551 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 16:21:27,556 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 16:21:27,557 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 16:21:27,561 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 16:21:27,566 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 16:21:27,567 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 16:21:27,568 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 16:21:27,569 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 16:21:27,570 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 16:21:27,570 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 16:21:27,574 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 16:21:27,574 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 16:21:27,574 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 16:21:27,576 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 16:21:27,582 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 16:21:27,583 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-27 16:21:27,611 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 16:21:27,614 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 16:21:27,616 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 16:21:27,616 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 16:21:27,616 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 16:21:27,617 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 16:21:27,617 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 16:21:27,617 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 16:21:27,619 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 16:21:27,619 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 16:21:27,620 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 16:21:27,620 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 16:21:27,620 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 16:21:27,621 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 16:21:27,621 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 16:21:27,621 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 16:21:27,621 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 16:21:27,624 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 16:21:27,624 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 16:21:27,624 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 16:21:27,624 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 16:21:27,625 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 16:21:27,625 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 16:21:27,625 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 16:21:27,625 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 16:21:27,625 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 16:21:27,626 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 16:21:27,626 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 16:21:27,626 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 -> 30601811463d073f869bef96a3132d41c5e6f5ce [2019-11-27 16:21:28,221 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 16:21:28,249 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 16:21:28,258 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 16:21:28,260 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 16:21:28,263 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 16:21:28,264 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-simple/afterrec-2.c [2019-11-27 16:21:28,414 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e5044c63/95cd8c748c934cfcb3b6aff123837f03/FLAG8cc6c3a33 [2019-11-27 16:21:29,378 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 16:21:29,381 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/afterrec-2.c [2019-11-27 16:21:29,399 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e5044c63/95cd8c748c934cfcb3b6aff123837f03/FLAG8cc6c3a33 [2019-11-27 16:21:29,580 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e5044c63/95cd8c748c934cfcb3b6aff123837f03 [2019-11-27 16:21:29,588 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 16:21:29,593 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-11-27 16:21:29,598 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 16:21:29,599 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 16:21:29,606 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 16:21:29,609 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 04:21:29" (1/1) ... [2019-11-27 16:21:29,615 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1542a42d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:21:29, skipping insertion in model container [2019-11-27 16:21:29,618 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 04:21:29" (1/1) ... [2019-11-27 16:21:29,639 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 16:21:29,677 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 16:21:30,082 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 16:21:30,097 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 16:21:30,131 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 16:21:30,161 INFO L208 MainTranslator]: Completed translation [2019-11-27 16:21:30,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:21:30 WrapperNode [2019-11-27 16:21:30,164 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 16:21:30,166 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 16:21:30,168 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 16:21:30,168 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 16:21:30,188 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:21:30" (1/1) ... [2019-11-27 16:21:30,203 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:21:30" (1/1) ... [2019-11-27 16:21:30,233 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 16:21:30,236 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 16:21:30,236 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 16:21:30,236 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 16:21:30,331 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:21:30" (1/1) ... [2019-11-27 16:21:30,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:21:30" (1/1) ... [2019-11-27 16:21:30,339 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:21:30" (1/1) ... [2019-11-27 16:21:30,340 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:21:30" (1/1) ... [2019-11-27 16:21:30,353 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:21:30" (1/1) ... [2019-11-27 16:21:30,356 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:21:30" (1/1) ... [2019-11-27 16:21:30,357 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:21:30" (1/1) ... [2019-11-27 16:21:30,358 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 16:21:30,363 INFO L168 Benchmark]: Toolchain (without parser) took 767.84 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 968.8 MB in the beginning and 996.9 MB in the end (delta: -28.1 MB). Peak memory consumption was 20.7 MB. Max. memory is 12.5 GB. [2019-11-27 16:21:30,367 INFO L168 Benchmark]: CDTParser took 0.33 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. [2019-11-27 16:21:30,373 INFO L168 Benchmark]: CACSL2BoogieTranslator took 566.84 ms. Allocated memory is still 1.0 GB. Free memory was 968.8 MB in the beginning and 957.4 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 12.5 GB. [2019-11-27 16:21:30,374 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.88 ms. Allocated memory is still 1.0 GB. Free memory is still 957.4 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 16:21:30,376 INFO L168 Benchmark]: Boogie Preprocessor took 122.88 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 957.4 MB in the beginning and 996.9 MB in the end (delta: -39.5 MB). Peak memory consumption was 9.2 MB. Max. memory is 12.5 GB. [2019-11-27 16:21:30,390 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 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 566.84 ms. Allocated memory is still 1.0 GB. Free memory was 968.8 MB in the beginning and 957.4 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 69.88 ms. Allocated memory is still 1.0 GB. Free memory is still 957.4 MB. There was no memory consumed. Max. memory is 12.5 GB. * Boogie Preprocessor took 122.88 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 957.4 MB in the beginning and 996.9 MB in the end (delta: -39.5 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 0.1.24-509859d [2019-11-27 16:21:34,381 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 16:21:34,387 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 16:21:34,420 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 16:21:34,422 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 16:21:34,431 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 16:21:34,433 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 16:21:34,450 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 16:21:34,454 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 16:21:34,463 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 16:21:34,465 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 16:21:34,474 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 16:21:34,474 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 16:21:34,481 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 16:21:34,488 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 16:21:34,492 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 16:21:34,496 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 16:21:34,502 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 16:21:34,511 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 16:21:34,519 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 16:21:34,528 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 16:21:34,537 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 16:21:34,540 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 16:21:34,544 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 16:21:34,553 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 16:21:34,554 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 16:21:34,556 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 16:21:34,559 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 16:21:34,561 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 16:21:34,562 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 16:21:34,566 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 16:21:34,567 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 16:21:34,568 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 16:21:34,572 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 16:21:34,574 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 16:21:34,577 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 16:21:34,578 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 16:21:34,579 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 16:21:34,579 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 16:21:34,580 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 16:21:34,586 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 16:21:34,587 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-27 16:21:34,623 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 16:21:34,625 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 16:21:34,631 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 16:21:34,631 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 16:21:34,632 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 16:21:34,632 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 16:21:34,632 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 16:21:34,635 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 16:21:34,635 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 16:21:34,635 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 16:21:34,637 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 16:21:34,637 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 16:21:34,638 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-27 16:21:34,640 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-27 16:21:34,641 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 16:21:34,641 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 16:21:34,641 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 16:21:34,641 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 16:21:34,642 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 16:21:34,643 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 16:21:34,643 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 16:21:34,646 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 16:21:34,646 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 16:21:34,647 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 16:21:34,647 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 16:21:34,647 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 16:21:34,647 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-27 16:21:34,648 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-27 16:21:34,648 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 16:21:34,648 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-27 16:21:34,652 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 -> 30601811463d073f869bef96a3132d41c5e6f5ce [2019-11-27 16:21:35,215 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 16:21:35,243 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 16:21:35,251 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 16:21:35,256 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 16:21:35,258 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 16:21:35,260 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-simple/afterrec-2.c [2019-11-27 16:21:35,410 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b6e3dc6a/cbd6f71f4d9f4f0c8616d1a6fb357cda/FLAG4d7d96b39 [2019-11-27 16:21:36,445 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 16:21:36,446 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/afterrec-2.c [2019-11-27 16:21:36,460 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b6e3dc6a/cbd6f71f4d9f4f0c8616d1a6fb357cda/FLAG4d7d96b39 [2019-11-27 16:21:36,500 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b6e3dc6a/cbd6f71f4d9f4f0c8616d1a6fb357cda [2019-11-27 16:21:36,511 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 16:21:36,514 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-11-27 16:21:36,516 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 16:21:36,519 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 16:21:36,525 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 16:21:36,529 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 04:21:36" (1/1) ... [2019-11-27 16:21:36,538 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@380647e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:21:36, skipping insertion in model container [2019-11-27 16:21:36,539 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 04:21:36" (1/1) ... [2019-11-27 16:21:36,560 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 16:21:36,600 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 16:21:36,997 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 16:21:37,005 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 16:21:37,029 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 16:21:37,055 INFO L208 MainTranslator]: Completed translation [2019-11-27 16:21:37,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:21:37 WrapperNode [2019-11-27 16:21:37,057 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 16:21:37,064 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 16:21:37,065 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 16:21:37,065 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 16:21:37,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:21:37" (1/1) ... [2019-11-27 16:21:37,086 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:21:37" (1/1) ... [2019-11-27 16:21:37,210 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 16:21:37,210 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 16:21:37,212 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 16:21:37,212 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 16:21:37,231 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:21:37" (1/1) ... [2019-11-27 16:21:37,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:21:37" (1/1) ... [2019-11-27 16:21:37,233 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:21:37" (1/1) ... [2019-11-27 16:21:37,233 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:21:37" (1/1) ... [2019-11-27 16:21:37,238 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:21:37" (1/1) ... [2019-11-27 16:21:37,241 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:21:37" (1/1) ... [2019-11-27 16:21:37,242 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:21:37" (1/1) ... [2019-11-27 16:21:37,245 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 16:21:37,266 INFO L168 Benchmark]: Toolchain (without parser) took 733.85 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 997.0 MB in the end (delta: -29.6 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 16:21:37,271 INFO L168 Benchmark]: CDTParser took 0.99 ms. Allocated memory is still 1.0 GB. Free memory is still 994.6 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 16:21:37,275 INFO L168 Benchmark]: CACSL2BoogieTranslator took 541.06 ms. Allocated memory is still 1.0 GB. Free memory was 967.4 MB in the beginning and 956.0 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 12.5 GB. [2019-11-27 16:21:37,277 INFO L168 Benchmark]: Boogie Procedure Inliner took 146.03 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 956.0 MB in the beginning and 997.0 MB in the end (delta: -41.0 MB). Peak memory consumption was 9.2 MB. Max. memory is 12.5 GB. [2019-11-27 16:21:37,282 INFO L168 Benchmark]: Boogie Preprocessor took 35.10 ms. Allocated memory is still 1.0 GB. Free memory is still 997.0 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 16:21:37,291 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.99 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 541.06 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 146.03 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 956.0 MB in the beginning and 997.0 MB in the end (delta: -41.0 MB). Peak memory consumption was 9.2 MB. Max. memory is 12.5 GB. * Boogie Preprocessor took 35.10 ms. Allocated memory is still 1.0 GB. Free memory is still 997.0 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...