./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-acceleration/underapprox_1-2.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/loop-acceleration/underapprox_1-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6cd948af0e0b6c8603db03ff6e3dfbac759cb557 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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/loop-acceleration/underapprox_1-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6cd948af0e0b6c8603db03ff6e3dfbac759cb557 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 21:10:04,312 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 21:10:04,319 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 21:10:04,347 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 21:10:04,347 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 21:10:04,359 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 21:10:04,364 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 21:10:04,379 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 21:10:04,385 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 21:10:04,391 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 21:10:04,392 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 21:10:04,398 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 21:10:04,400 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 21:10:04,405 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 21:10:04,409 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 21:10:04,415 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 21:10:04,418 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 21:10:04,423 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 21:10:04,430 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 21:10:04,440 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 21:10:04,446 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 21:10:04,454 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 21:10:04,457 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 21:10:04,461 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 21:10:04,468 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-24 21:10:04,468 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-24 21:10:04,470 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-24 21:10:04,475 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-24 21:10:04,476 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-24 21:10:04,477 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-24 21:10:04,482 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-24 21:10:04,483 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-24 21:10:04,484 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-24 21:10:04,485 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-24 21:10:04,487 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-24 21:10:04,489 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-24 21:10:04,490 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-24 21:10:04,492 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-24 21:10:04,492 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 21:10:04,493 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 21:10:04,499 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 21:10:04,500 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-24 21:10:04,537 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 21:10:04,538 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 21:10:04,542 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-24 21:10:04,543 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-24 21:10:04,547 INFO L138 SettingsManager]: * Use SBE=true [2019-11-24 21:10:04,547 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 21:10:04,548 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 21:10:04,548 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 21:10:04,548 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 21:10:04,548 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 21:10:04,550 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 21:10:04,550 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 21:10:04,550 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 21:10:04,551 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-24 21:10:04,551 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 21:10:04,551 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 21:10:04,552 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-24 21:10:04,552 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 21:10:04,552 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 21:10:04,555 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-24 21:10:04,555 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 21:10:04,555 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 21:10:04,556 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 21:10:04,556 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 21:10:04,556 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 21:10:04,557 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 21:10:04,557 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-24 21:10:04,560 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 21:10:04,560 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 21:10:04,560 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 -> 6cd948af0e0b6c8603db03ff6e3dfbac759cb557 [2019-11-24 21:10:05,084 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 21:10:05,111 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 21:10:05,121 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 21:10:05,123 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 21:10:05,127 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 21:10:05,127 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-acceleration/underapprox_1-2.c [2019-11-24 21:10:05,294 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5311dad3/cf5a0c54a25740bbad5ff73574e5e434/FLAG810becef3 [2019-11-24 21:10:06,300 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 21:10:06,303 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-acceleration/underapprox_1-2.c [2019-11-24 21:10:06,316 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5311dad3/cf5a0c54a25740bbad5ff73574e5e434/FLAG810becef3 [2019-11-24 21:10:06,354 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5311dad3/cf5a0c54a25740bbad5ff73574e5e434 [2019-11-24 21:10:06,361 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 21:10:06,365 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-11-24 21:10:06,372 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 21:10:06,373 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 21:10:06,380 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 21:10:06,385 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:10:06" (1/1) ... [2019-11-24 21:10:06,392 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74e4d0b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:10:06, skipping insertion in model container [2019-11-24 21:10:06,392 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:10:06" (1/1) ... [2019-11-24 21:10:06,412 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 21:10:06,453 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 21:10:06,873 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 21:10:06,881 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 21:10:06,904 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 21:10:06,930 INFO L208 MainTranslator]: Completed translation [2019-11-24 21:10:06,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:10:06 WrapperNode [2019-11-24 21:10:06,941 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 21:10:06,942 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 21:10:06,943 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 21:10:06,943 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 21:10:06,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:10:06" (1/1) ... [2019-11-24 21:10:06,983 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:10:06" (1/1) ... [2019-11-24 21:10:07,109 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 21:10:07,115 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 21:10:07,116 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 21:10:07,116 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 21:10:07,134 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:10:06" (1/1) ... [2019-11-24 21:10:07,135 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:10:06" (1/1) ... [2019-11-24 21:10:07,136 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:10:06" (1/1) ... [2019-11-24 21:10:07,136 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:10:06" (1/1) ... [2019-11-24 21:10:07,148 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:10:06" (1/1) ... [2019-11-24 21:10:07,155 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:10:06" (1/1) ... [2019-11-24 21:10:07,156 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:10:06" (1/1) ... [2019-11-24 21:10:07,160 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 21:10:07,181 INFO L168 Benchmark]: Toolchain (without parser) took 798.28 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 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. [2019-11-24 21:10:07,184 INFO L168 Benchmark]: CDTParser took 0.94 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 21:10:07,188 INFO L168 Benchmark]: CACSL2BoogieTranslator took 569.20 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 950.2 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 12.5 GB. [2019-11-24 21:10:07,190 INFO L168 Benchmark]: Boogie Procedure Inliner took 172.48 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 950.2 MB in the beginning and 996.8 MB in the end (delta: -46.6 MB). Peak memory consumption was 9.4 MB. Max. memory is 12.5 GB. [2019-11-24 21:10:07,194 INFO L168 Benchmark]: Boogie Preprocessor took 44.80 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. [2019-11-24 21:10:07,207 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.94 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 569.20 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 950.2 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 172.48 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 950.2 MB in the beginning and 996.8 MB in the end (delta: -46.6 MB). Peak memory consumption was 9.4 MB. Max. memory is 12.5 GB. * Boogie Preprocessor took 44.80 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... ### Bit-precise run ### This is Ultimate 0.1.24-32f2683 [2019-11-24 21:10:11,207 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 21:10:11,210 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 21:10:11,235 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 21:10:11,235 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 21:10:11,237 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 21:10:11,242 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 21:10:11,252 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 21:10:11,257 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 21:10:11,263 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 21:10:11,264 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 21:10:11,266 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 21:10:11,268 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 21:10:11,271 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 21:10:11,273 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 21:10:11,275 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 21:10:11,278 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 21:10:11,278 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 21:10:11,282 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 21:10:11,289 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 21:10:11,296 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 21:10:11,303 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 21:10:11,304 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 21:10:11,309 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 21:10:11,319 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-24 21:10:11,322 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-24 21:10:11,322 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-24 21:10:11,325 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-24 21:10:11,328 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-24 21:10:11,329 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-24 21:10:11,330 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-24 21:10:11,331 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-24 21:10:11,334 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-24 21:10:11,338 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-24 21:10:11,342 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-24 21:10:11,342 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-24 21:10:11,345 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-24 21:10:11,347 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-24 21:10:11,347 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 21:10:11,348 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 21:10:11,354 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 21:10:11,355 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-24 21:10:11,408 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 21:10:11,413 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 21:10:11,414 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-24 21:10:11,420 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-24 21:10:11,420 INFO L138 SettingsManager]: * Use SBE=true [2019-11-24 21:10:11,421 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 21:10:11,421 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 21:10:11,421 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 21:10:11,422 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 21:10:11,425 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 21:10:11,425 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 21:10:11,425 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 21:10:11,427 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-24 21:10:11,431 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-24 21:10:11,431 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-24 21:10:11,431 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 21:10:11,432 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 21:10:11,432 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-24 21:10:11,432 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 21:10:11,433 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 21:10:11,433 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-24 21:10:11,433 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 21:10:11,433 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 21:10:11,434 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 21:10:11,434 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 21:10:11,434 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 21:10:11,435 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 21:10:11,435 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-24 21:10:11,437 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-24 21:10:11,437 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 21:10:11,438 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 21:10:11,439 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 -> 6cd948af0e0b6c8603db03ff6e3dfbac759cb557 [2019-11-24 21:10:11,949 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 21:10:11,992 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 21:10:11,999 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 21:10:12,002 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 21:10:12,008 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 21:10:12,009 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-acceleration/underapprox_1-2.c [2019-11-24 21:10:12,169 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/823c9c09b/02e7e61c369c445ab8425f0e2557eaa9/FLAGe68ab29d6 [2019-11-24 21:10:13,217 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 21:10:13,218 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-acceleration/underapprox_1-2.c [2019-11-24 21:10:13,235 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/823c9c09b/02e7e61c369c445ab8425f0e2557eaa9/FLAGe68ab29d6 [2019-11-24 21:10:13,271 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/823c9c09b/02e7e61c369c445ab8425f0e2557eaa9 [2019-11-24 21:10:13,279 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 21:10:13,282 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-11-24 21:10:13,288 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 21:10:13,289 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 21:10:13,296 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 21:10:13,298 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:10:13" (1/1) ... [2019-11-24 21:10:13,307 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35cd9645 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:10:13, skipping insertion in model container [2019-11-24 21:10:13,308 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:10:13" (1/1) ... [2019-11-24 21:10:13,324 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 21:10:13,369 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 21:10:13,768 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 21:10:13,797 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 21:10:13,836 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 21:10:13,863 INFO L208 MainTranslator]: Completed translation [2019-11-24 21:10:13,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:10:13 WrapperNode [2019-11-24 21:10:13,864 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 21:10:13,865 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 21:10:13,865 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 21:10:13,867 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 21:10:13,877 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:10:13" (1/1) ... [2019-11-24 21:10:13,973 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:10:13" (1/1) ... [2019-11-24 21:10:14,010 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 21:10:14,016 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 21:10:14,018 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 21:10:14,018 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 21:10:14,039 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:10:13" (1/1) ... [2019-11-24 21:10:14,041 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:10:13" (1/1) ... [2019-11-24 21:10:14,046 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:10:13" (1/1) ... [2019-11-24 21:10:14,047 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:10:13" (1/1) ... [2019-11-24 21:10:14,058 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:10:13" (1/1) ... [2019-11-24 21:10:14,066 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:10:13" (1/1) ... [2019-11-24 21:10:14,070 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:10:13" (1/1) ... [2019-11-24 21:10:14,074 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 21:10:14,086 INFO L168 Benchmark]: Toolchain (without parser) took 797.37 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 961.7 MB in the beginning and 997.0 MB in the end (delta: -35.3 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-24 21:10:14,087 INFO L168 Benchmark]: CDTParser took 0.31 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 21:10:14,089 INFO L168 Benchmark]: CACSL2BoogieTranslator took 576.55 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 950.2 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 12.5 GB. [2019-11-24 21:10:14,092 INFO L168 Benchmark]: Boogie Procedure Inliner took 145.01 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 950.2 MB in the beginning and 997.0 MB in the end (delta: -46.7 MB). Peak memory consumption was 9.2 MB. Max. memory is 12.5 GB. [2019-11-24 21:10:14,093 INFO L168 Benchmark]: Boogie Preprocessor took 60.89 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. [2019-11-24 21:10:14,111 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 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 576.55 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 950.2 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 145.01 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 950.2 MB in the beginning and 997.0 MB in the end (delta: -46.7 MB). Peak memory consumption was 9.2 MB. Max. memory is 12.5 GB. * Boogie Preprocessor took 60.89 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...