./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/verifythis/elimination_max_rec.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 32f26835 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/verifythis/elimination_max_rec.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 17d20a29a9e9cc6560e9aa0daac36f5de29f992c ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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/verifythis/elimination_max_rec.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 17d20a29a9e9cc6560e9aa0daac36f5de29f992c ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.1.24-32f2683 [2019-11-24 21:18:31,097 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 21:18:31,103 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 21:18:31,141 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 21:18:31,145 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 21:18:31,147 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 21:18:31,152 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 21:18:31,165 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 21:18:31,171 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 21:18:31,177 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 21:18:31,178 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 21:18:31,183 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 21:18:31,183 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 21:18:31,187 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 21:18:31,191 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 21:18:31,192 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 21:18:31,197 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 21:18:31,198 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 21:18:31,200 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 21:18:31,206 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 21:18:31,212 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 21:18:31,220 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 21:18:31,221 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 21:18:31,223 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 21:18:31,229 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-24 21:18:31,230 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-24 21:18:31,230 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-24 21:18:31,234 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-24 21:18:31,234 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-24 21:18:31,236 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-24 21:18:31,237 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-24 21:18:31,238 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-24 21:18:31,242 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-24 21:18:31,243 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-24 21:18:31,245 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-24 21:18:31,245 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-24 21:18:31,246 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-24 21:18:31,248 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-24 21:18:31,248 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 21:18:31,249 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 21:18:31,252 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 21:18:31,254 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-24 21:18:31,285 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 21:18:31,285 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 21:18:31,290 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-24 21:18:31,290 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-24 21:18:31,290 INFO L138 SettingsManager]: * Use SBE=true [2019-11-24 21:18:31,291 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 21:18:31,291 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 21:18:31,294 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 21:18:31,294 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 21:18:31,294 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 21:18:31,295 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 21:18:31,296 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 21:18:31,296 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 21:18:31,296 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-24 21:18:31,297 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 21:18:31,297 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 21:18:31,297 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-24 21:18:31,297 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 21:18:31,299 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 21:18:31,299 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-24 21:18:31,302 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 21:18:31,303 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 21:18:31,303 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 21:18:31,304 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 21:18:31,305 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 21:18:31,307 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 21:18:31,307 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-24 21:18:31,307 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 21:18:31,308 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 21:18:31,308 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 -> 17d20a29a9e9cc6560e9aa0daac36f5de29f992c [2019-11-24 21:18:31,836 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 21:18:31,868 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 21:18:31,877 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 21:18:31,881 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 21:18:31,882 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 21:18:31,883 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/verifythis/elimination_max_rec.c [2019-11-24 21:18:32,034 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af57781cc/2400e3bfefaa44fbbbd41eca1f9737e2/FLAG71d2a2ea0 [2019-11-24 21:18:33,068 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 21:18:33,069 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/verifythis/elimination_max_rec.c [2019-11-24 21:18:33,086 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af57781cc/2400e3bfefaa44fbbbd41eca1f9737e2/FLAG71d2a2ea0 [2019-11-24 21:18:33,331 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af57781cc/2400e3bfefaa44fbbbd41eca1f9737e2 [2019-11-24 21:18:33,335 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 21:18:33,337 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-11-24 21:18:33,350 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 21:18:33,350 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 21:18:33,357 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 21:18:33,360 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:18:33" (1/1) ... [2019-11-24 21:18:33,368 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f5a3cfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:18:33, skipping insertion in model container [2019-11-24 21:18:33,369 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:18:33" (1/1) ... [2019-11-24 21:18:33,389 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 21:18:33,434 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 21:18:33,898 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 21:18:33,945 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 21:18:34,005 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 21:18:34,126 INFO L208 MainTranslator]: Completed translation [2019-11-24 21:18:34,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:18:34 WrapperNode [2019-11-24 21:18:34,133 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 21:18:34,134 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 21:18:34,134 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 21:18:34,134 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 21:18:34,157 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:18:34" (1/1) ... [2019-11-24 21:18:34,187 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:18:34" (1/1) ... [2019-11-24 21:18:34,237 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 21:18:34,238 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 21:18:34,238 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 21:18:34,238 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 21:18:34,249 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:18:34" (1/1) ... [2019-11-24 21:18:34,250 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:18:34" (1/1) ... [2019-11-24 21:18:34,266 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:18:34" (1/1) ... [2019-11-24 21:18:34,267 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:18:34" (1/1) ... [2019-11-24 21:18:34,279 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:18:34" (1/1) ... [2019-11-24 21:18:34,287 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:18:34" (1/1) ... [2019-11-24 21:18:34,291 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:18:34" (1/1) ... [2019-11-24 21:18:34,295 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 21:18:34,304 INFO L168 Benchmark]: Toolchain (without parser) took 962.37 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 960.3 MB in the beginning and 991.2 MB in the end (delta: -30.9 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-24 21:18:34,306 INFO L168 Benchmark]: CDTParser took 3.32 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. [2019-11-24 21:18:34,308 INFO L168 Benchmark]: CACSL2BoogieTranslator took 783.61 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 960.3 MB in the beginning and 996.9 MB in the end (delta: -36.6 MB). Peak memory consumption was 20.7 MB. Max. memory is 12.5 GB. [2019-11-24 21:18:34,324 INFO L168 Benchmark]: Boogie Procedure Inliner took 103.49 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. [2019-11-24 21:18:34,330 INFO L168 Benchmark]: Boogie Preprocessor took 58.88 ms. Allocated memory is still 1.0 GB. Free memory was 996.9 MB in the beginning and 991.2 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 12.5 GB. [2019-11-24 21:18:34,340 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 3.32 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 783.61 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 960.3 MB in the beginning and 996.9 MB in the end (delta: -36.6 MB). Peak memory consumption was 20.7 MB. Max. memory is 12.5 GB. * Boogie Procedure Inliner took 103.49 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. * Boogie Preprocessor took 58.88 ms. Allocated memory is still 1.0 GB. Free memory was 996.9 MB in the beginning and 991.2 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 12.5 GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-32f2683 [2019-11-24 21:18:38,321 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 21:18:38,328 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 21:18:38,365 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 21:18:38,366 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 21:18:38,369 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 21:18:38,373 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 21:18:38,394 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 21:18:38,396 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 21:18:38,401 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 21:18:38,406 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 21:18:38,411 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 21:18:38,414 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 21:18:38,422 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 21:18:38,426 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 21:18:38,433 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 21:18:38,436 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 21:18:38,440 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 21:18:38,447 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 21:18:38,456 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 21:18:38,466 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 21:18:38,470 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 21:18:38,475 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 21:18:38,479 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 21:18:38,485 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-24 21:18:38,485 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-24 21:18:38,487 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-24 21:18:38,490 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-24 21:18:38,491 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-24 21:18:38,497 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-24 21:18:38,497 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-24 21:18:38,499 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-24 21:18:38,502 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-24 21:18:38,504 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-24 21:18:38,507 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-24 21:18:38,509 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-24 21:18:38,512 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-24 21:18:38,513 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-24 21:18:38,513 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 21:18:38,519 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 21:18:38,521 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 21:18:38,522 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-24 21:18:38,563 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 21:18:38,565 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 21:18:38,569 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-24 21:18:38,571 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-24 21:18:38,571 INFO L138 SettingsManager]: * Use SBE=true [2019-11-24 21:18:38,571 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 21:18:38,572 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 21:18:38,573 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 21:18:38,573 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 21:18:38,573 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 21:18:38,576 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 21:18:38,576 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 21:18:38,577 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-24 21:18:38,577 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-24 21:18:38,580 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-24 21:18:38,580 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 21:18:38,581 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 21:18:38,581 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-24 21:18:38,581 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 21:18:38,582 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 21:18:38,582 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-24 21:18:38,585 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 21:18:38,585 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 21:18:38,585 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 21:18:38,586 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 21:18:38,586 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 21:18:38,586 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 21:18:38,587 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-24 21:18:38,587 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-24 21:18:38,587 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 21:18:38,591 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 21:18:38,591 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 -> 17d20a29a9e9cc6560e9aa0daac36f5de29f992c [2019-11-24 21:18:39,172 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 21:18:39,204 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 21:18:39,211 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 21:18:39,214 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 21:18:39,217 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 21:18:39,219 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/verifythis/elimination_max_rec.c [2019-11-24 21:18:39,377 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6e76eb20/6a46a006076b42d8996efad406dc1766/FLAG2655924c0 [2019-11-24 21:18:40,354 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 21:18:40,356 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/verifythis/elimination_max_rec.c [2019-11-24 21:18:40,370 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6e76eb20/6a46a006076b42d8996efad406dc1766/FLAG2655924c0 [2019-11-24 21:18:40,509 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6e76eb20/6a46a006076b42d8996efad406dc1766 [2019-11-24 21:18:40,517 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 21:18:40,521 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-11-24 21:18:40,525 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 21:18:40,526 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 21:18:40,532 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 21:18:40,536 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:18:40" (1/1) ... [2019-11-24 21:18:40,544 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77c3aba3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:18:40, skipping insertion in model container [2019-11-24 21:18:40,544 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:18:40" (1/1) ... [2019-11-24 21:18:40,566 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 21:18:40,612 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 21:18:41,075 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 21:18:41,122 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 21:18:41,197 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 21:18:41,336 INFO L208 MainTranslator]: Completed translation [2019-11-24 21:18:41,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:18:41 WrapperNode [2019-11-24 21:18:41,337 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 21:18:41,338 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 21:18:41,338 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 21:18:41,340 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 21:18:41,359 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:18:41" (1/1) ... [2019-11-24 21:18:41,388 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:18:41" (1/1) ... [2019-11-24 21:18:41,435 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 21:18:41,436 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 21:18:41,436 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 21:18:41,436 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 21:18:41,447 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:18:41" (1/1) ... [2019-11-24 21:18:41,447 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:18:41" (1/1) ... [2019-11-24 21:18:41,465 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:18:41" (1/1) ... [2019-11-24 21:18:41,466 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:18:41" (1/1) ... [2019-11-24 21:18:41,483 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:18:41" (1/1) ... [2019-11-24 21:18:41,486 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:18:41" (1/1) ... [2019-11-24 21:18:41,494 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:18:41" (1/1) ... [2019-11-24 21:18:41,497 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 21:18:41,509 INFO L168 Benchmark]: Toolchain (without parser) took 982.00 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 963.1 MB in the beginning and 991.0 MB in the end (delta: -27.9 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-24 21:18:41,514 INFO L168 Benchmark]: CDTParser took 2.31 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. [2019-11-24 21:18:41,518 INFO L168 Benchmark]: CACSL2BoogieTranslator took 811.87 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 963.1 MB in the beginning and 996.8 MB in the end (delta: -33.6 MB). Peak memory consumption was 20.8 MB. Max. memory is 12.5 GB. [2019-11-24 21:18:41,520 INFO L168 Benchmark]: Boogie Procedure Inliner took 97.86 ms. Allocated memory is still 1.0 GB. Free memory is still 996.8 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-24 21:18:41,523 INFO L168 Benchmark]: Boogie Preprocessor took 64.04 ms. Allocated memory is still 1.0 GB. Free memory was 996.8 MB in the beginning and 991.0 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 12.5 GB. [2019-11-24 21:18:41,541 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.31 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 811.87 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 963.1 MB in the beginning and 996.8 MB in the end (delta: -33.6 MB). Peak memory consumption was 20.8 MB. Max. memory is 12.5 GB. * Boogie Procedure Inliner took 97.86 ms. Allocated memory is still 1.0 GB. Free memory is still 996.8 MB. There was no memory consumed. Max. memory is 12.5 GB. * Boogie Preprocessor took 64.04 ms. Allocated memory is still 1.0 GB. Free memory was 996.8 MB in the beginning and 991.0 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 12.5 GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...