./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 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/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 0.1.24-509859d [2019-11-27 16:22:01,142 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 16:22:01,147 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 16:22:01,183 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 16:22:01,185 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 16:22:01,188 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 16:22:01,195 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 16:22:01,211 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 16:22:01,216 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 16:22:01,222 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 16:22:01,224 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 16:22:01,229 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 16:22:01,232 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 16:22:01,236 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 16:22:01,241 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 16:22:01,245 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 16:22:01,247 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 16:22:01,252 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 16:22:01,257 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 16:22:01,264 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 16:22:01,273 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 16:22:01,280 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 16:22:01,284 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 16:22:01,287 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 16:22:01,295 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 16:22:01,297 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 16:22:01,297 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 16:22:01,303 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 16:22:01,304 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 16:22:01,305 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 16:22:01,306 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 16:22:01,308 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 16:22:01,310 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 16:22:01,314 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 16:22:01,316 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 16:22:01,317 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 16:22:01,319 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 16:22:01,320 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 16:22:01,320 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 16:22:01,323 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 16:22:01,326 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 16:22:01,327 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-27 16:22:01,377 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 16:22:01,378 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 16:22:01,385 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 16:22:01,389 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 16:22:01,389 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 16:22:01,390 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 16:22:01,390 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 16:22:01,391 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 16:22:01,394 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 16:22:01,394 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 16:22:01,397 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 16:22:01,397 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 16:22:01,398 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 16:22:01,399 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 16:22:01,402 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 16:22:01,402 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 16:22:01,403 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 16:22:01,403 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 16:22:01,403 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 16:22:01,404 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 16:22:01,405 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 16:22:01,405 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 16:22:01,407 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 16:22:01,410 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 16:22:01,410 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 16:22:01,410 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 16:22:01,411 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 16:22:01,411 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 16:22:01,412 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 [2019-11-27 16:22:02,075 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 16:22:02,102 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 16:22:02,108 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 16:22:02,112 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 16:22:02,117 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 16:22:02,118 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/verifythis/elimination_max_rec.c [2019-11-27 16:22:02,274 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de302453d/e19ba68039d648d19f91b7e375d754c6/FLAG379bc0132 [2019-11-27 16:22:03,364 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 16:22:03,365 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/verifythis/elimination_max_rec.c [2019-11-27 16:22:03,386 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de302453d/e19ba68039d648d19f91b7e375d754c6/FLAG379bc0132 [2019-11-27 16:22:03,424 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de302453d/e19ba68039d648d19f91b7e375d754c6 [2019-11-27 16:22:03,432 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 16:22:03,438 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-11-27 16:22:03,440 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 16:22:03,442 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 16:22:03,449 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 16:22:03,452 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 04:22:03" (1/1) ... [2019-11-27 16:22:03,460 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b93ca5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:22:03, skipping insertion in model container [2019-11-27 16:22:03,461 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 04:22:03" (1/1) ... [2019-11-27 16:22:03,482 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 16:22:03,532 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 16:22:03,992 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 16:22:04,042 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 16:22:04,097 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 16:22:04,228 INFO L208 MainTranslator]: Completed translation [2019-11-27 16:22:04,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:22:04 WrapperNode [2019-11-27 16:22:04,234 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 16:22:04,235 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 16:22:04,237 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 16:22:04,237 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 16:22:04,256 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:22:04" (1/1) ... [2019-11-27 16:22:04,282 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:22:04" (1/1) ... [2019-11-27 16:22:04,352 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 16:22:04,355 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 16:22:04,355 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 16:22:04,355 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 16:22:04,369 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:22:04" (1/1) ... [2019-11-27 16:22:04,369 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:22:04" (1/1) ... [2019-11-27 16:22:04,388 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:22:04" (1/1) ... [2019-11-27 16:22:04,390 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:22:04" (1/1) ... [2019-11-27 16:22:04,413 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:22:04" (1/1) ... [2019-11-27 16:22:04,418 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:22:04" (1/1) ... [2019-11-27 16:22:04,423 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:22:04" (1/1) ... [2019-11-27 16:22:04,427 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 16:22:04,442 INFO L168 Benchmark]: Toolchain (without parser) took 993.13 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 991.2 MB in the end (delta: -23.7 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 16:22:04,452 INFO L168 Benchmark]: CDTParser took 0.34 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 16:22:04,453 INFO L168 Benchmark]: CACSL2BoogieTranslator took 794.28 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. [2019-11-27 16:22:04,457 INFO L168 Benchmark]: Boogie Procedure Inliner took 119.18 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. [2019-11-27 16:22:04,459 INFO L168 Benchmark]: Boogie Preprocessor took 74.13 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. [2019-11-27 16:22:04,474 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 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 794.28 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. * Boogie Procedure Inliner took 119.18 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 74.13 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 0.1.24-509859d [2019-11-27 16:22:08,523 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 16:22:08,532 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 16:22:08,578 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 16:22:08,580 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 16:22:08,586 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 16:22:08,588 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 16:22:08,603 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 16:22:08,610 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 16:22:08,616 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 16:22:08,617 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 16:22:08,622 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 16:22:08,625 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 16:22:08,628 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 16:22:08,630 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 16:22:08,634 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 16:22:08,638 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 16:22:08,641 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 16:22:08,646 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 16:22:08,653 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 16:22:08,661 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 16:22:08,671 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 16:22:08,673 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 16:22:08,678 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 16:22:08,686 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 16:22:08,686 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 16:22:08,687 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 16:22:08,692 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 16:22:08,693 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 16:22:08,694 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 16:22:08,694 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 16:22:08,695 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 16:22:08,698 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 16:22:08,701 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 16:22:08,704 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 16:22:08,705 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 16:22:08,708 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 16:22:08,708 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 16:22:08,709 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 16:22:08,713 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 16:22:08,715 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 16:22:08,716 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-27 16:22:08,780 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 16:22:08,783 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 16:22:08,787 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 16:22:08,790 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 16:22:08,790 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 16:22:08,793 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 16:22:08,793 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 16:22:08,794 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 16:22:08,794 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 16:22:08,794 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 16:22:08,796 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 16:22:08,798 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 16:22:08,798 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-27 16:22:08,799 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-27 16:22:08,799 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 16:22:08,800 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 16:22:08,800 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 16:22:08,803 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 16:22:08,803 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 16:22:08,804 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 16:22:08,804 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 16:22:08,804 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 16:22:08,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 16:22:08,805 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 16:22:08,805 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 16:22:08,806 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 16:22:08,808 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-27 16:22:08,808 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-27 16:22:08,809 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 16:22:08,809 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-27 16:22:08,810 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 [2019-11-27 16:22:09,377 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 16:22:09,423 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 16:22:09,429 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 16:22:09,434 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 16:22:09,435 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 16:22:09,436 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/verifythis/elimination_max_rec.c [2019-11-27 16:22:09,604 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8e159a3d/759be185e7a64f8dbbedd69bd1ce180a/FLAG6567cfc2c [2019-11-27 16:22:10,647 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 16:22:10,650 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/verifythis/elimination_max_rec.c [2019-11-27 16:22:10,665 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8e159a3d/759be185e7a64f8dbbedd69bd1ce180a/FLAG6567cfc2c [2019-11-27 16:22:10,802 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8e159a3d/759be185e7a64f8dbbedd69bd1ce180a [2019-11-27 16:22:10,807 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 16:22:10,809 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-11-27 16:22:10,825 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 16:22:10,825 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 16:22:10,829 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 16:22:10,834 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 04:22:10" (1/1) ... [2019-11-27 16:22:10,841 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f36619a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:22:10, skipping insertion in model container [2019-11-27 16:22:10,842 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 04:22:10" (1/1) ... [2019-11-27 16:22:10,862 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 16:22:10,908 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 16:22:11,353 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 16:22:11,381 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 16:22:11,453 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 16:22:11,578 INFO L208 MainTranslator]: Completed translation [2019-11-27 16:22:11,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:22:11 WrapperNode [2019-11-27 16:22:11,579 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 16:22:11,580 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 16:22:11,580 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 16:22:11,580 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 16:22:11,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:22:11" (1/1) ... [2019-11-27 16:22:11,612 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:22:11" (1/1) ... [2019-11-27 16:22:11,652 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 16:22:11,653 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 16:22:11,653 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 16:22:11,653 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 16:22:11,670 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:22:11" (1/1) ... [2019-11-27 16:22:11,670 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:22:11" (1/1) ... [2019-11-27 16:22:11,690 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:22:11" (1/1) ... [2019-11-27 16:22:11,690 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:22:11" (1/1) ... [2019-11-27 16:22:11,708 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:22:11" (1/1) ... [2019-11-27 16:22:11,713 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:22:11" (1/1) ... [2019-11-27 16:22:11,718 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:22:11" (1/1) ... [2019-11-27 16:22:11,725 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 16:22:11,738 INFO L168 Benchmark]: Toolchain (without parser) took 921.27 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 961.7 MB in the beginning and 991.1 MB in the end (delta: -29.4 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 16:22:11,740 INFO L168 Benchmark]: CDTParser took 2.32 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. [2019-11-27 16:22:11,742 INFO L168 Benchmark]: CACSL2BoogieTranslator took 754.40 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 961.7 MB in the beginning and 996.8 MB in the end (delta: -35.1 MB). Peak memory consumption was 20.8 MB. Max. memory is 12.5 GB. [2019-11-27 16:22:11,744 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.66 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. [2019-11-27 16:22:11,747 INFO L168 Benchmark]: Boogie Preprocessor took 74.47 ms. Allocated memory is still 1.0 GB. Free memory was 996.8 MB in the beginning and 991.1 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 12.5 GB. [2019-11-27 16:22:11,765 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.32 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 754.40 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 961.7 MB in the beginning and 996.8 MB in the end (delta: -35.1 MB). Peak memory consumption was 20.8 MB. Max. memory is 12.5 GB. * Boogie Procedure Inliner took 72.66 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 74.47 ms. Allocated memory is still 1.0 GB. Free memory was 996.8 MB in the beginning and 991.1 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...