./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-regression/test20.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/ldv-regression/test20.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 f10ebf4f7e674b3b7b46a17b881a1ff501d9eeae ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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/ldv-regression/test20.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 f10ebf4f7e674b3b7b46a17b881a1ff501d9eeae ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 16:10:50,333 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 16:10:50,340 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 16:10:50,377 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 16:10:50,378 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 16:10:50,383 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 16:10:50,386 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 16:10:50,403 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 16:10:50,410 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 16:10:50,416 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 16:10:50,418 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 16:10:50,423 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 16:10:50,424 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 16:10:50,431 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 16:10:50,435 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 16:10:50,440 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 16:10:50,442 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 16:10:50,447 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 16:10:50,450 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 16:10:50,461 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 16:10:50,469 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 16:10:50,478 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 16:10:50,480 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 16:10:50,484 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 16:10:50,493 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 16:10:50,494 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 16:10:50,494 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 16:10:50,498 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 16:10:50,499 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 16:10:50,503 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 16:10:50,503 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 16:10:50,504 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 16:10:50,507 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 16:10:50,510 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 16:10:50,514 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 16:10:50,514 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 16:10:50,517 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 16:10:50,519 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 16:10:50,519 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 16:10:50,520 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 16:10:50,523 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 16:10:50,525 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-27 16:10:50,576 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 16:10:50,582 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 16:10:50,583 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 16:10:50,588 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 16:10:50,590 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 16:10:50,590 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 16:10:50,591 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 16:10:50,591 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 16:10:50,591 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 16:10:50,593 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 16:10:50,593 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 16:10:50,593 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 16:10:50,596 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 16:10:50,597 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 16:10:50,597 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 16:10:50,597 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 16:10:50,598 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 16:10:50,598 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 16:10:50,598 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 16:10:50,599 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 16:10:50,599 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 16:10:50,601 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 16:10:50,601 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 16:10:50,602 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 16:10:50,602 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 16:10:50,604 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 16:10:50,604 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 16:10:50,604 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 16:10:50,605 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 -> f10ebf4f7e674b3b7b46a17b881a1ff501d9eeae [2019-11-27 16:10:51,105 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 16:10:51,134 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 16:10:51,140 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 16:10:51,145 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 16:10:51,146 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 16:10:51,149 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/test20.c [2019-11-27 16:10:51,326 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/805fa23b1/bebab2562b4945e6995e1f24cc991af6/FLAG1cf38780d [2019-11-27 16:10:52,296 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 16:10:52,298 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test20.c [2019-11-27 16:10:52,313 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/805fa23b1/bebab2562b4945e6995e1f24cc991af6/FLAG1cf38780d [2019-11-27 16:10:52,509 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/805fa23b1/bebab2562b4945e6995e1f24cc991af6 [2019-11-27 16:10:52,516 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 16:10:52,520 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-11-27 16:10:52,526 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 16:10:52,526 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 16:10:52,532 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 16:10:52,535 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 04:10:52" (1/1) ... [2019-11-27 16:10:52,543 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5553a1b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:10:52, skipping insertion in model container [2019-11-27 16:10:52,546 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 04:10:52" (1/1) ... [2019-11-27 16:10:52,562 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 16:10:52,606 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 16:10:52,972 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 16:10:52,994 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 16:10:53,029 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 16:10:53,083 INFO L208 MainTranslator]: Completed translation [2019-11-27 16:10:53,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:10:53 WrapperNode [2019-11-27 16:10:53,092 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 16:10:53,093 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 16:10:53,093 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 16:10:53,094 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 16:10:53,109 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:10:53" (1/1) ... [2019-11-27 16:10:53,201 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:10:53" (1/1) ... [2019-11-27 16:10:53,230 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 16:10:53,233 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 16:10:53,233 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 16:10:53,242 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 16:10:53,253 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:10:53" (1/1) ... [2019-11-27 16:10:53,253 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:10:53" (1/1) ... [2019-11-27 16:10:53,256 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:10:53" (1/1) ... [2019-11-27 16:10:53,256 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:10:53" (1/1) ... [2019-11-27 16:10:53,264 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:10:53" (1/1) ... [2019-11-27 16:10:53,267 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:10:53" (1/1) ... [2019-11-27 16:10:53,268 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:10:53" (1/1) ... [2019-11-27 16:10:53,270 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 16:10:53,291 INFO L168 Benchmark]: Toolchain (without parser) took 753.16 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 997.0 MB in the end (delta: -36.8 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 16:10:53,294 INFO L168 Benchmark]: CDTParser took 0.95 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 16:10:53,298 INFO L168 Benchmark]: CACSL2BoogieTranslator took 566.57 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 948.8 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 12.5 GB. [2019-11-27 16:10:53,300 INFO L168 Benchmark]: Boogie Procedure Inliner took 139.17 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 948.8 MB in the beginning and 997.0 MB in the end (delta: -48.2 MB). Peak memory consumption was 9.1 MB. Max. memory is 12.5 GB. [2019-11-27 16:10:53,304 INFO L168 Benchmark]: Boogie Preprocessor took 37.60 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 16:10:53,317 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.95 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 566.57 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 948.8 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 12.5 GB. * Boogie Procedure Inliner took 139.17 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 948.8 MB in the beginning and 997.0 MB in the end (delta: -48.2 MB). Peak memory consumption was 9.1 MB. Max. memory is 12.5 GB. * Boogie Preprocessor took 37.60 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... ### Bit-precise run ### This is Ultimate 0.1.24-509859d [2019-11-27 16:10:57,335 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 16:10:57,338 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 16:10:57,367 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 16:10:57,368 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 16:10:57,371 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 16:10:57,388 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 16:10:57,407 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 16:10:57,412 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 16:10:57,416 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 16:10:57,421 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 16:10:57,423 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 16:10:57,426 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 16:10:57,431 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 16:10:57,437 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 16:10:57,439 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 16:10:57,444 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 16:10:57,449 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 16:10:57,453 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 16:10:57,463 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 16:10:57,470 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 16:10:57,477 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 16:10:57,479 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 16:10:57,484 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 16:10:57,492 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 16:10:57,493 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 16:10:57,493 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 16:10:57,495 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 16:10:57,498 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 16:10:57,499 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 16:10:57,501 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 16:10:57,502 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 16:10:57,504 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 16:10:57,505 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 16:10:57,511 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 16:10:57,511 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 16:10:57,513 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 16:10:57,513 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 16:10:57,515 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 16:10:57,518 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 16:10:57,521 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 16:10:57,523 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-27 16:10:57,564 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 16:10:57,565 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 16:10:57,570 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 16:10:57,571 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 16:10:57,574 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 16:10:57,574 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 16:10:57,575 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 16:10:57,575 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 16:10:57,575 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 16:10:57,575 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 16:10:57,577 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 16:10:57,577 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 16:10:57,577 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-27 16:10:57,579 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-27 16:10:57,579 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 16:10:57,580 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 16:10:57,580 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 16:10:57,582 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 16:10:57,582 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 16:10:57,583 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 16:10:57,583 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 16:10:57,585 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 16:10:57,585 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 16:10:57,586 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 16:10:57,586 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 16:10:57,586 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 16:10:57,587 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-27 16:10:57,590 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-27 16:10:57,590 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 16:10:57,590 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-27 16:10:57,592 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 -> f10ebf4f7e674b3b7b46a17b881a1ff501d9eeae [2019-11-27 16:10:58,210 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 16:10:58,239 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 16:10:58,246 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 16:10:58,250 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 16:10:58,254 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 16:10:58,256 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/test20.c [2019-11-27 16:10:58,405 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd2d136f4/8cbe731c3f1a4fa1b4177ce1b0758316/FLAG2a6d82d96 [2019-11-27 16:10:59,361 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 16:10:59,362 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test20.c [2019-11-27 16:10:59,376 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd2d136f4/8cbe731c3f1a4fa1b4177ce1b0758316/FLAG2a6d82d96 [2019-11-27 16:10:59,556 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd2d136f4/8cbe731c3f1a4fa1b4177ce1b0758316 [2019-11-27 16:10:59,564 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 16:10:59,567 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-11-27 16:10:59,574 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 16:10:59,577 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 16:10:59,581 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 16:10:59,585 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 04:10:59" (1/1) ... [2019-11-27 16:10:59,593 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@730d4db0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:10:59, skipping insertion in model container [2019-11-27 16:10:59,595 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 04:10:59" (1/1) ... [2019-11-27 16:10:59,605 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 16:10:59,631 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 16:10:59,970 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 16:10:59,989 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 16:11:00,029 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 16:11:00,093 INFO L208 MainTranslator]: Completed translation [2019-11-27 16:11:00,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:11:00 WrapperNode [2019-11-27 16:11:00,095 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 16:11:00,102 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 16:11:00,102 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 16:11:00,103 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 16:11:00,115 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:11:00" (1/1) ... [2019-11-27 16:11:00,126 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:11:00" (1/1) ... [2019-11-27 16:11:00,226 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 16:11:00,227 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 16:11:00,227 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 16:11:00,227 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 16:11:00,238 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:11:00" (1/1) ... [2019-11-27 16:11:00,238 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:11:00" (1/1) ... [2019-11-27 16:11:00,241 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:11:00" (1/1) ... [2019-11-27 16:11:00,241 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:11:00" (1/1) ... [2019-11-27 16:11:00,250 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:11:00" (1/1) ... [2019-11-27 16:11:00,252 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:11:00" (1/1) ... [2019-11-27 16:11:00,255 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:11:00" (1/1) ... [2019-11-27 16:11:00,263 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 16:11:00,284 INFO L168 Benchmark]: Toolchain (without parser) took 699.23 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 16:11:00,287 INFO L168 Benchmark]: CDTParser took 0.34 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 16:11:00,291 INFO L168 Benchmark]: CACSL2BoogieTranslator took 521.23 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 950.1 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 12.5 GB. [2019-11-27 16:11:00,294 INFO L168 Benchmark]: Boogie Procedure Inliner took 124.65 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 950.1 MB in the beginning and 996.8 MB in the end (delta: -46.7 MB). Peak memory consumption was 9.3 MB. Max. memory is 12.5 GB. [2019-11-27 16:11:00,298 INFO L168 Benchmark]: Boogie Preprocessor took 36.90 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 16:11:00,309 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 988.9 MB. There was no memory consumed. Max. memory is 12.5 GB. * CACSL2BoogieTranslator took 521.23 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 950.1 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 12.5 GB. * Boogie Procedure Inliner took 124.65 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 950.1 MB in the beginning and 996.8 MB in the end (delta: -46.7 MB). Peak memory consumption was 9.3 MB. Max. memory is 12.5 GB. * Boogie Preprocessor took 36.90 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...