./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 025d5a27 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 0.1.24-025d5a2 [2019-11-26 17:12:36,564 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 17:12:36,567 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 17:12:36,595 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 17:12:36,596 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 17:12:36,599 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 17:12:36,614 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 17:12:36,630 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 17:12:36,636 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 17:12:36,641 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 17:12:36,643 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 17:12:36,649 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 17:12:36,652 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 17:12:36,656 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 17:12:36,661 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 17:12:36,667 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 17:12:36,670 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 17:12:36,673 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 17:12:36,679 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 17:12:36,688 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 17:12:36,696 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 17:12:36,703 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 17:12:36,707 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 17:12:36,709 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 17:12:36,718 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 17:12:36,718 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 17:12:36,719 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 17:12:36,721 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 17:12:36,722 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 17:12:36,727 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 17:12:36,727 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 17:12:36,728 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 17:12:36,732 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 17:12:36,734 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 17:12:36,735 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 17:12:36,737 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 17:12:36,742 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 17:12:36,742 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 17:12:36,743 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 17:12:36,744 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 17:12:36,748 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 17:12:36,749 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-26 17:12:36,789 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 17:12:36,790 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 17:12:36,794 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-26 17:12:36,796 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-26 17:12:36,796 INFO L138 SettingsManager]: * Use SBE=true [2019-11-26 17:12:36,797 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 17:12:36,798 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 17:12:36,798 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 17:12:36,802 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 17:12:36,802 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 17:12:36,803 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 17:12:36,804 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 17:12:36,804 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 17:12:36,805 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 17:12:36,805 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 17:12:36,805 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-26 17:12:36,806 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 17:12:36,806 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 17:12:36,806 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-26 17:12:36,807 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 17:12:36,809 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 17:12:36,809 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 17:12:36,809 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 17:12:36,810 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 17:12:36,810 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 17:12:36,810 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-26 17:12:36,811 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 17:12:36,812 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 17:12:36,812 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 [2019-11-26 17:12:37,400 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 17:12:37,429 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 17:12:37,438 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 17:12:37,442 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 17:12:37,443 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 17:12:37,444 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/verifythis/elimination_max_rec.c [2019-11-26 17:12:37,599 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2d7cc792/491181b8912d4bceb5a5ba04aca97d36/FLAGc5d3584bc [2019-11-26 17:12:38,703 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 17:12:38,706 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/verifythis/elimination_max_rec.c [2019-11-26 17:12:38,723 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2d7cc792/491181b8912d4bceb5a5ba04aca97d36/FLAGc5d3584bc [2019-11-26 17:12:38,762 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2d7cc792/491181b8912d4bceb5a5ba04aca97d36 [2019-11-26 17:12:38,770 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 17:12:38,776 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-11-26 17:12:38,778 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 17:12:38,780 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 17:12:38,789 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 17:12:38,790 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 05:12:38" (1/1) ... [2019-11-26 17:12:38,801 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@496f2f38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:12:38, skipping insertion in model container [2019-11-26 17:12:38,802 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 05:12:38" (1/1) ... [2019-11-26 17:12:38,819 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 17:12:38,873 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-26 17:12:39,335 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 17:12:39,383 INFO L203 MainTranslator]: Completed pre-run [2019-11-26 17:12:39,439 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 17:12:39,569 INFO L208 MainTranslator]: Completed translation [2019-11-26 17:12:39,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:12:39 WrapperNode [2019-11-26 17:12:39,575 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 17:12:39,576 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 17:12:39,577 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 17:12:39,577 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 17:12:39,598 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:12:39" (1/1) ... [2019-11-26 17:12:39,622 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:12:39" (1/1) ... [2019-11-26 17:12:39,669 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 17:12:39,672 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 17:12:39,672 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 17:12:39,672 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 17:12:39,683 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:12:39" (1/1) ... [2019-11-26 17:12:39,684 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:12:39" (1/1) ... [2019-11-26 17:12:39,700 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:12:39" (1/1) ... [2019-11-26 17:12:39,701 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:12:39" (1/1) ... [2019-11-26 17:12:39,714 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:12:39" (1/1) ... [2019-11-26 17:12:39,720 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:12:39" (1/1) ... [2019-11-26 17:12:39,724 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:12:39" (1/1) ... [2019-11-26 17:12:39,732 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 17:12:39,737 INFO L168 Benchmark]: Toolchain (without parser) took 958.58 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: -23.8 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-26 17:12:39,741 INFO L168 Benchmark]: CDTParser took 0.75 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. [2019-11-26 17:12:39,744 INFO L168 Benchmark]: CACSL2BoogieTranslator took 797.69 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. [2019-11-26 17:12:39,745 INFO L168 Benchmark]: Boogie Procedure Inliner took 95.08 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. [2019-11-26 17:12:39,749 INFO L168 Benchmark]: Boogie Preprocessor took 60.53 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. [2019-11-26 17:12:39,772 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.75 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 797.69 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 95.08 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 60.53 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 0.1.24-025d5a2 [2019-11-26 17:12:43,598 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 17:12:43,605 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 17:12:43,640 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 17:12:43,645 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 17:12:43,648 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 17:12:43,650 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 17:12:43,670 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 17:12:43,673 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 17:12:43,678 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 17:12:43,684 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 17:12:43,687 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 17:12:43,690 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 17:12:43,694 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 17:12:43,699 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 17:12:43,703 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 17:12:43,708 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 17:12:43,710 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 17:12:43,716 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 17:12:43,724 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 17:12:43,733 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 17:12:43,738 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 17:12:43,742 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 17:12:43,746 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 17:12:43,757 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 17:12:43,758 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 17:12:43,758 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 17:12:43,760 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 17:12:43,761 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 17:12:43,764 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 17:12:43,766 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 17:12:43,767 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 17:12:43,769 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 17:12:43,775 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 17:12:43,777 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 17:12:43,778 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 17:12:43,781 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 17:12:43,783 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 17:12:43,783 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 17:12:43,787 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 17:12:43,788 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 17:12:43,792 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-26 17:12:43,834 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 17:12:43,835 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 17:12:43,841 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-26 17:12:43,841 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-26 17:12:43,841 INFO L138 SettingsManager]: * Use SBE=true [2019-11-26 17:12:43,844 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 17:12:43,844 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 17:12:43,845 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 17:12:43,845 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 17:12:43,845 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 17:12:43,847 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 17:12:43,849 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 17:12:43,849 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-26 17:12:43,850 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-26 17:12:43,850 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 17:12:43,850 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 17:12:43,851 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-26 17:12:43,851 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 17:12:43,852 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 17:12:43,852 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-26 17:12:43,852 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 17:12:43,854 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 17:12:43,854 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 17:12:43,854 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 17:12:43,855 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 17:12:43,857 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 17:12:43,857 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-26 17:12:43,857 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-26 17:12:43,858 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 17:12:43,858 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 17:12:43,859 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 [2019-11-26 17:12:44,402 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 17:12:44,436 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 17:12:44,444 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 17:12:44,449 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 17:12:44,450 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 17:12:44,454 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/verifythis/elimination_max_rec.c [2019-11-26 17:12:44,616 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5af3d417f/0ce75765901d4c10a4f4dca236432bad/FLAGe6614bd53 [2019-11-26 17:12:45,686 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 17:12:45,689 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/verifythis/elimination_max_rec.c [2019-11-26 17:12:45,707 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5af3d417f/0ce75765901d4c10a4f4dca236432bad/FLAGe6614bd53 [2019-11-26 17:12:45,747 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5af3d417f/0ce75765901d4c10a4f4dca236432bad [2019-11-26 17:12:45,756 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 17:12:45,759 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-11-26 17:12:45,765 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 17:12:45,765 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 17:12:45,774 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 17:12:45,777 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 05:12:45" (1/1) ... [2019-11-26 17:12:45,785 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 26.11 05:12:45, skipping insertion in model container [2019-11-26 17:12:45,786 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 05:12:45" (1/1) ... [2019-11-26 17:12:45,804 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 17:12:45,855 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-26 17:12:46,334 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 17:12:46,383 INFO L203 MainTranslator]: Completed pre-run [2019-11-26 17:12:46,457 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 17:12:46,581 INFO L208 MainTranslator]: Completed translation [2019-11-26 17:12:46,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:12:46 WrapperNode [2019-11-26 17:12:46,582 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 17:12:46,594 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 17:12:46,597 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 17:12:46,597 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 17:12:46,620 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:12:46" (1/1) ... [2019-11-26 17:12:46,650 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:12:46" (1/1) ... [2019-11-26 17:12:46,717 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 17:12:46,718 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 17:12:46,718 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 17:12:46,718 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 17:12:46,740 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:12:46" (1/1) ... [2019-11-26 17:12:46,745 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:12:46" (1/1) ... [2019-11-26 17:12:46,764 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:12:46" (1/1) ... [2019-11-26 17:12:46,765 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:12:46" (1/1) ... [2019-11-26 17:12:46,795 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:12:46" (1/1) ... [2019-11-26 17:12:46,801 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:12:46" (1/1) ... [2019-11-26 17:12:46,807 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:12:46" (1/1) ... [2019-11-26 17:12:46,816 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 17:12:46,826 INFO L168 Benchmark]: Toolchain (without parser) took 1062.06 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. [2019-11-26 17:12:46,829 INFO L168 Benchmark]: CDTParser took 0.55 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. [2019-11-26 17:12:46,831 INFO L168 Benchmark]: CACSL2BoogieTranslator took 817.90 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. [2019-11-26 17:12:46,833 INFO L168 Benchmark]: Boogie Procedure Inliner took 123.81 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. [2019-11-26 17:12:46,840 INFO L168 Benchmark]: Boogie Preprocessor took 100.78 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. [2019-11-26 17:12:46,847 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.55 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 817.90 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 123.81 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 100.78 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...