./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/verifythis/elimination_max_rec_onepoint.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version da95e156 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_onepoint.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 f1dcdcb191cc3a70c9cb7bce226f0263f581cc07 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_onepoint.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 f1dcdcb191cc3a70c9cb7bce226f0263f581cc07 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.1.24-da95e15 [2019-11-27 10:00:15,895 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 10:00:15,898 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 10:00:15,921 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 10:00:15,923 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 10:00:15,930 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 10:00:15,933 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 10:00:15,960 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 10:00:15,971 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 10:00:15,979 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 10:00:15,986 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 10:00:15,990 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 10:00:15,993 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 10:00:15,998 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 10:00:16,001 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 10:00:16,006 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 10:00:16,011 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 10:00:16,012 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 10:00:16,014 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 10:00:16,027 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 10:00:16,036 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 10:00:16,041 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 10:00:16,045 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 10:00:16,047 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 10:00:16,056 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 10:00:16,057 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 10:00:16,057 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 10:00:16,060 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 10:00:16,062 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 10:00:16,066 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 10:00:16,066 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 10:00:16,067 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 10:00:16,071 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 10:00:16,073 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 10:00:16,076 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 10:00:16,078 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 10:00:16,082 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 10:00:16,083 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 10:00:16,083 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 10:00:16,087 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 10:00:16,089 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 10:00:16,092 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-27 10:00:16,135 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 10:00:16,136 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 10:00:16,140 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 10:00:16,142 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 10:00:16,142 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 10:00:16,143 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 10:00:16,144 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 10:00:16,144 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 10:00:16,144 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 10:00:16,147 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 10:00:16,148 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 10:00:16,149 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 10:00:16,149 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 10:00:16,149 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 10:00:16,150 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 10:00:16,150 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 10:00:16,152 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 10:00:16,152 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 10:00:16,153 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 10:00:16,153 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 10:00:16,153 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 10:00:16,155 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 10:00:16,155 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 10:00:16,155 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 10:00:16,156 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 10:00:16,157 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 10:00:16,157 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 10:00:16,160 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 10:00:16,160 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 -> f1dcdcb191cc3a70c9cb7bce226f0263f581cc07 [2019-11-27 10:00:16,681 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 10:00:16,712 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 10:00:16,716 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 10:00:16,723 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 10:00:16,724 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 10:00:16,725 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/verifythis/elimination_max_rec_onepoint.c [2019-11-27 10:00:16,883 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/579688113/b76d8f51a0bd43c5ae32ddaaa0d3f7c1/FLAGe6e97ded1 [2019-11-27 10:00:17,918 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 10:00:17,921 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/verifythis/elimination_max_rec_onepoint.c [2019-11-27 10:00:17,939 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/579688113/b76d8f51a0bd43c5ae32ddaaa0d3f7c1/FLAGe6e97ded1 [2019-11-27 10:00:18,066 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/579688113/b76d8f51a0bd43c5ae32ddaaa0d3f7c1 [2019-11-27 10:00:18,076 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 10:00:18,078 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-11-27 10:00:18,083 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 10:00:18,085 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 10:00:18,092 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 10:00:18,096 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 10:00:18" (1/1) ... [2019-11-27 10:00:18,104 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@685d65fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:00:18, skipping insertion in model container [2019-11-27 10:00:18,104 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 10:00:18" (1/1) ... [2019-11-27 10:00:18,124 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 10:00:18,174 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 10:00:18,647 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 10:00:18,694 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 10:00:18,748 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 10:00:18,874 INFO L208 MainTranslator]: Completed translation [2019-11-27 10:00:18,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:00:18 WrapperNode [2019-11-27 10:00:18,877 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 10:00:18,878 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 10:00:18,881 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 10:00:18,881 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 10:00:18,906 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:00:18" (1/1) ... [2019-11-27 10:00:18,938 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:00:18" (1/1) ... [2019-11-27 10:00:19,013 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 10:00:19,015 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 10:00:19,016 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 10:00:19,016 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 10:00:19,028 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:00:18" (1/1) ... [2019-11-27 10:00:19,028 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:00:18" (1/1) ... [2019-11-27 10:00:19,033 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:00:18" (1/1) ... [2019-11-27 10:00:19,034 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:00:18" (1/1) ... [2019-11-27 10:00:19,062 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:00:18" (1/1) ... [2019-11-27 10:00:19,065 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:00:18" (1/1) ... [2019-11-27 10:00:19,073 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:00:18" (1/1) ... [2019-11-27 10:00:19,075 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 10:00:19,100 INFO L168 Benchmark]: Toolchain (without parser) took 1005.39 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 960.3 MB in the beginning and 991.1 MB in the end (delta: -30.9 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 10:00:19,102 INFO L168 Benchmark]: CDTParser took 1.41 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 10:00:19,106 INFO L168 Benchmark]: CACSL2BoogieTranslator took 794.65 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 960.3 MB in the beginning and 996.8 MB in the end (delta: -36.6 MB). Peak memory consumption was 20.8 MB. Max. memory is 12.5 GB. [2019-11-27 10:00:19,108 INFO L168 Benchmark]: Boogie Procedure Inliner took 136.69 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 10:00:19,112 INFO L168 Benchmark]: Boogie Preprocessor took 65.61 ms. Allocated memory is still 1.0 GB. Free memory is still 991.1 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 10:00:19,119 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.41 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 794.65 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 960.3 MB in the beginning and 996.8 MB in the end (delta: -36.6 MB). Peak memory consumption was 20.8 MB. Max. memory is 12.5 GB. * Boogie Procedure Inliner took 136.69 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. * Boogie Preprocessor took 65.61 ms. Allocated memory is still 1.0 GB. Free memory is still 991.1 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-da95e15 [2019-11-27 10:00:22,990 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 10:00:22,993 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 10:00:23,019 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 10:00:23,020 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 10:00:23,023 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 10:00:23,038 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 10:00:23,055 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 10:00:23,061 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 10:00:23,064 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 10:00:23,068 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 10:00:23,072 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 10:00:23,075 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 10:00:23,079 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 10:00:23,085 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 10:00:23,089 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 10:00:23,091 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 10:00:23,095 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 10:00:23,101 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 10:00:23,107 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 10:00:23,116 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 10:00:23,120 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 10:00:23,124 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 10:00:23,131 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 10:00:23,133 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 10:00:23,136 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 10:00:23,136 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 10:00:23,141 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 10:00:23,141 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 10:00:23,142 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 10:00:23,144 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 10:00:23,145 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 10:00:23,146 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 10:00:23,150 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 10:00:23,153 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 10:00:23,154 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 10:00:23,155 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 10:00:23,158 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 10:00:23,158 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 10:00:23,165 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 10:00:23,167 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 10:00:23,168 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-27 10:00:23,206 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 10:00:23,208 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 10:00:23,212 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 10:00:23,214 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 10:00:23,214 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 10:00:23,218 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 10:00:23,218 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 10:00:23,219 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 10:00:23,219 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 10:00:23,219 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 10:00:23,220 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 10:00:23,221 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 10:00:23,221 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-27 10:00:23,222 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-27 10:00:23,222 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 10:00:23,222 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 10:00:23,224 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 10:00:23,224 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 10:00:23,224 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 10:00:23,225 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 10:00:23,227 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 10:00:23,227 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 10:00:23,227 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 10:00:23,228 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 10:00:23,228 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 10:00:23,230 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 10:00:23,230 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-27 10:00:23,230 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-27 10:00:23,231 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 10:00:23,231 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-27 10:00:23,233 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 -> f1dcdcb191cc3a70c9cb7bce226f0263f581cc07 [2019-11-27 10:00:23,856 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 10:00:23,888 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 10:00:23,895 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 10:00:23,902 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 10:00:23,902 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 10:00:23,906 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/verifythis/elimination_max_rec_onepoint.c [2019-11-27 10:00:24,059 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77e37c3a0/90005cbdbd7848d294aa71ee60ba0e88/FLAG9d994b9ca [2019-11-27 10:00:25,090 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 10:00:25,092 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/verifythis/elimination_max_rec_onepoint.c [2019-11-27 10:00:25,110 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77e37c3a0/90005cbdbd7848d294aa71ee60ba0e88/FLAG9d994b9ca [2019-11-27 10:00:25,228 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77e37c3a0/90005cbdbd7848d294aa71ee60ba0e88 [2019-11-27 10:00:25,236 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 10:00:25,241 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-11-27 10:00:25,248 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 10:00:25,249 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 10:00:25,255 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 10:00:25,256 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 10:00:25" (1/1) ... [2019-11-27 10:00:25,263 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@685d65fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:00:25, skipping insertion in model container [2019-11-27 10:00:25,269 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 10:00:25" (1/1) ... [2019-11-27 10:00:25,288 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 10:00:25,326 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 10:00:25,785 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 10:00:25,834 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 10:00:25,915 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 10:00:26,033 INFO L208 MainTranslator]: Completed translation [2019-11-27 10:00:26,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:00:26 WrapperNode [2019-11-27 10:00:26,037 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 10:00:26,039 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 10:00:26,040 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 10:00:26,040 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 10:00:26,063 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:00:26" (1/1) ... [2019-11-27 10:00:26,109 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:00:26" (1/1) ... [2019-11-27 10:00:26,177 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 10:00:26,178 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 10:00:26,178 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 10:00:26,178 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 10:00:26,193 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:00:26" (1/1) ... [2019-11-27 10:00:26,194 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:00:26" (1/1) ... [2019-11-27 10:00:26,203 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:00:26" (1/1) ... [2019-11-27 10:00:26,204 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:00:26" (1/1) ... [2019-11-27 10:00:26,231 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:00:26" (1/1) ... [2019-11-27 10:00:26,235 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:00:26" (1/1) ... [2019-11-27 10:00:26,243 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:00:26" (1/1) ... [2019-11-27 10:00:26,251 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 10:00:26,261 INFO L168 Benchmark]: Toolchain (without parser) took 1012.99 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 991.0 MB in the end (delta: -23.6 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 10:00:26,262 INFO L168 Benchmark]: CDTParser took 0.48 ms. Allocated memory is still 1.0 GB. Free memory is still 994.6 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 10:00:26,267 INFO L168 Benchmark]: CACSL2BoogieTranslator took 789.69 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 996.7 MB in the end (delta: -29.3 MB). Peak memory consumption was 20.9 MB. Max. memory is 12.5 GB. [2019-11-27 10:00:26,269 INFO L168 Benchmark]: Boogie Procedure Inliner took 139.08 ms. Allocated memory is still 1.0 GB. Free memory was 996.7 MB in the beginning and 991.0 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 12.5 GB. [2019-11-27 10:00:26,271 INFO L168 Benchmark]: Boogie Preprocessor took 73.74 ms. Allocated memory is still 1.0 GB. Free memory is still 991.0 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 10:00:26,292 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48 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 789.69 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 996.7 MB in the end (delta: -29.3 MB). Peak memory consumption was 20.9 MB. Max. memory is 12.5 GB. * Boogie Procedure Inliner took 139.08 ms. Allocated memory is still 1.0 GB. Free memory was 996.7 MB in the beginning and 991.0 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 12.5 GB. * Boogie Preprocessor took 73.74 ms. Allocated memory is still 1.0 GB. Free memory is still 991.0 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...