./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/verifythis/prefixsum_rec.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 509859d6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/verifythis/prefixsum_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 4f7077bba653370b680c2ff46ec9417a9e7cf514 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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/prefixsum_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 4f7077bba653370b680c2ff46ec9417a9e7cf514 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.1.24-509859d [2019-11-27 16:21:59,048 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 16:21:59,054 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 16:21:59,090 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 16:21:59,093 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 16:21:59,095 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 16:21:59,100 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 16:21:59,112 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 16:21:59,121 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 16:21:59,127 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 16:21:59,128 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 16:21:59,133 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 16:21:59,136 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 16:21:59,139 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 16:21:59,142 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 16:21:59,145 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 16:21:59,150 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 16:21:59,152 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 16:21:59,156 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 16:21:59,160 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 16:21:59,167 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 16:21:59,177 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 16:21:59,180 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 16:21:59,184 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 16:21:59,192 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 16:21:59,192 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 16:21:59,193 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 16:21:59,196 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 16:21:59,198 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 16:21:59,201 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 16:21:59,201 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 16:21:59,202 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 16:21:59,204 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 16:21:59,206 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 16:21:59,211 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 16:21:59,211 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 16:21:59,214 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 16:21:59,215 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 16:21:59,215 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 16:21:59,216 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 16:21:59,220 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 16:21:59,221 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-27 16:21:59,275 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 16:21:59,280 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 16:21:59,283 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 16:21:59,285 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 16:21:59,285 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 16:21:59,285 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 16:21:59,291 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 16:21:59,291 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 16:21:59,291 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 16:21:59,292 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 16:21:59,292 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 16:21:59,292 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 16:21:59,293 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 16:21:59,293 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 16:21:59,294 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 16:21:59,294 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 16:21:59,294 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 16:21:59,296 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 16:21:59,296 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 16:21:59,299 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 16:21:59,299 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 16:21:59,302 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 16:21:59,302 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 16:21:59,302 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 16:21:59,303 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 16:21:59,303 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 16:21:59,303 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 16:21:59,304 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 16:21:59,305 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 -> 4f7077bba653370b680c2ff46ec9417a9e7cf514 [2019-11-27 16:21:59,853 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 16:21:59,883 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 16:21:59,889 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 16:21:59,893 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 16:21:59,898 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 16:21:59,900 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/verifythis/prefixsum_rec.c [2019-11-27 16:22:00,036 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e37212a2/2b84819d1d3940f0b3f8e389ed6fd774/FLAG1f40958a8 [2019-11-27 16:22:01,049 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 16:22:01,050 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/verifythis/prefixsum_rec.c [2019-11-27 16:22:01,068 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e37212a2/2b84819d1d3940f0b3f8e389ed6fd774/FLAG1f40958a8 [2019-11-27 16:22:01,191 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e37212a2/2b84819d1d3940f0b3f8e389ed6fd774 [2019-11-27 16:22:01,203 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 16:22:01,210 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-11-27 16:22:01,212 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 16:22:01,215 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 16:22:01,219 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 16:22:01,226 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 04:22:01" (1/1) ... [2019-11-27 16:22:01,232 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62b7a959 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:22:01, skipping insertion in model container [2019-11-27 16:22:01,232 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 04:22:01" (1/1) ... [2019-11-27 16:22:01,252 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 16:22:01,306 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 16:22:01,775 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 16:22:01,800 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 16:22:01,947 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 16:22:01,980 INFO L208 MainTranslator]: Completed translation [2019-11-27 16:22:01,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:22:01 WrapperNode [2019-11-27 16:22:01,981 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 16:22:01,988 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 16:22:01,989 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 16:22:01,989 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 16:22:02,004 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:22:01" (1/1) ... [2019-11-27 16:22:02,031 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:22:01" (1/1) ... [2019-11-27 16:22:02,078 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 16:22:02,080 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 16:22:02,080 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 16:22:02,080 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 16:22:02,091 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:22:01" (1/1) ... [2019-11-27 16:22:02,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:22:01" (1/1) ... [2019-11-27 16:22:02,102 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:22:01" (1/1) ... [2019-11-27 16:22:02,103 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:22:01" (1/1) ... [2019-11-27 16:22:02,127 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:22:01" (1/1) ... [2019-11-27 16:22:02,140 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:22:01" (1/1) ... [2019-11-27 16:22:02,144 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:22:01" (1/1) ... [2019-11-27 16:22:02,155 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 16:22:02,161 INFO L168 Benchmark]: Toolchain (without parser) took 950.04 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 961.6 MB in the beginning and 991.4 MB in the end (delta: -29.7 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 16:22:02,176 INFO L168 Benchmark]: CDTParser took 0.44 ms. Allocated memory is still 1.0 GB. Free memory is still 988.9 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 16:22:02,180 INFO L168 Benchmark]: CACSL2BoogieTranslator took 769.25 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 961.6 MB in the beginning and 991.4 MB in the end (delta: -29.7 MB). Peak memory consumption was 20.5 MB. Max. memory is 12.5 GB. [2019-11-27 16:22:02,181 INFO L168 Benchmark]: Boogie Procedure Inliner took 91.37 ms. Allocated memory is still 1.0 GB. Free memory is still 991.4 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 16:22:02,182 INFO L168 Benchmark]: Boogie Preprocessor took 75.46 ms. Allocated memory is still 1.0 GB. Free memory is still 991.4 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 16:22:02,189 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44 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 769.25 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 961.6 MB in the beginning and 991.4 MB in the end (delta: -29.7 MB). Peak memory consumption was 20.5 MB. Max. memory is 12.5 GB. * Boogie Procedure Inliner took 91.37 ms. Allocated memory is still 1.0 GB. Free memory is still 991.4 MB. There was no memory consumed. Max. memory is 12.5 GB. * Boogie Preprocessor took 75.46 ms. Allocated memory is still 1.0 GB. Free memory is still 991.4 MB. There was no memory consumed. Max. memory is 12.5 GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-509859d [2019-11-27 16:22:05,895 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 16:22:05,903 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 16:22:05,939 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 16:22:05,940 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 16:22:05,946 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 16:22:05,948 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 16:22:05,965 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 16:22:05,969 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 16:22:05,977 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 16:22:05,979 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 16:22:05,984 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 16:22:05,985 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 16:22:05,989 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 16:22:05,993 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 16:22:05,999 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 16:22:06,004 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 16:22:06,010 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 16:22:06,013 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 16:22:06,023 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 16:22:06,031 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 16:22:06,035 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 16:22:06,038 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 16:22:06,045 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 16:22:06,052 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 16:22:06,053 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 16:22:06,053 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 16:22:06,058 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 16:22:06,059 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 16:22:06,060 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 16:22:06,063 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 16:22:06,064 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 16:22:06,065 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 16:22:06,070 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 16:22:06,072 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 16:22:06,072 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 16:22:06,074 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 16:22:06,075 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 16:22:06,077 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 16:22:06,079 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 16:22:06,083 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 16:22:06,084 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-27 16:22:06,123 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 16:22:06,124 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 16:22:06,128 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 16:22:06,129 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 16:22:06,129 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 16:22:06,132 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 16:22:06,132 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 16:22:06,133 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 16:22:06,133 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 16:22:06,133 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 16:22:06,135 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 16:22:06,135 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 16:22:06,137 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-27 16:22:06,137 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-27 16:22:06,138 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 16:22:06,138 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 16:22:06,138 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 16:22:06,140 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 16:22:06,140 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 16:22:06,140 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 16:22:06,141 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 16:22:06,143 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 16:22:06,143 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 16:22:06,144 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 16:22:06,144 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 16:22:06,144 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 16:22:06,144 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-27 16:22:06,146 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-27 16:22:06,146 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 16:22:06,146 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-27 16:22:06,148 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 -> 4f7077bba653370b680c2ff46ec9417a9e7cf514 [2019-11-27 16:22:06,693 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 16:22:06,723 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 16:22:06,732 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 16:22:06,739 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 16:22:06,740 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 16:22:06,741 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/verifythis/prefixsum_rec.c [2019-11-27 16:22:06,898 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c99038936/f5f8e405464849e2a1d5b744779fd5c7/FLAGf4fc0d9ab [2019-11-27 16:22:07,984 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 16:22:07,988 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/verifythis/prefixsum_rec.c [2019-11-27 16:22:08,003 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c99038936/f5f8e405464849e2a1d5b744779fd5c7/FLAGf4fc0d9ab [2019-11-27 16:22:08,041 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c99038936/f5f8e405464849e2a1d5b744779fd5c7 [2019-11-27 16:22:08,052 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 16:22:08,057 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-11-27 16:22:08,060 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 16:22:08,060 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 16:22:08,067 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 16:22:08,071 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 04:22:08" (1/1) ... [2019-11-27 16:22:08,079 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d67420b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:22:08, skipping insertion in model container [2019-11-27 16:22:08,081 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 04:22:08" (1/1) ... [2019-11-27 16:22:08,099 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 16:22:08,165 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 16:22:08,655 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 16:22:08,680 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 16:22:08,841 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 16:22:08,880 INFO L208 MainTranslator]: Completed translation [2019-11-27 16:22:08,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:22:08 WrapperNode [2019-11-27 16:22:08,882 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 16:22:08,897 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 16:22:08,897 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 16:22:08,897 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 16:22:08,918 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:22:08" (1/1) ... [2019-11-27 16:22:08,962 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:22:08" (1/1) ... [2019-11-27 16:22:09,034 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 16:22:09,036 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 16:22:09,036 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 16:22:09,036 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 16:22:09,059 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:22:08" (1/1) ... [2019-11-27 16:22:09,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:22:08" (1/1) ... [2019-11-27 16:22:09,074 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:22:08" (1/1) ... [2019-11-27 16:22:09,077 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:22:08" (1/1) ... [2019-11-27 16:22:09,116 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:22:08" (1/1) ... [2019-11-27 16:22:09,126 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:22:08" (1/1) ... [2019-11-27 16:22:09,132 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:22:08" (1/1) ... [2019-11-27 16:22:09,145 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 16:22:09,155 INFO L168 Benchmark]: Toolchain (without parser) took 1096.13 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 961.7 MB in the beginning and 985.5 MB in the end (delta: -23.8 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 16:22:09,158 INFO L168 Benchmark]: CDTParser took 0.43 ms. Allocated memory is still 1.0 GB. Free memory is still 988.9 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 16:22:09,162 INFO L168 Benchmark]: CACSL2BoogieTranslator took 822.47 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 991.2 MB in the end (delta: -29.5 MB). Peak memory consumption was 20.7 MB. Max. memory is 12.5 GB. [2019-11-27 16:22:09,166 INFO L168 Benchmark]: Boogie Procedure Inliner took 138.87 ms. Allocated memory is still 1.0 GB. Free memory is still 991.2 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 16:22:09,168 INFO L168 Benchmark]: Boogie Preprocessor took 113.73 ms. Allocated memory is still 1.0 GB. Free memory was 991.2 MB in the beginning and 985.5 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 12.5 GB. [2019-11-27 16:22:09,177 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43 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 822.47 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 991.2 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 138.87 ms. Allocated memory is still 1.0 GB. Free memory is still 991.2 MB. There was no memory consumed. Max. memory is 12.5 GB. * Boogie Preprocessor took 113.73 ms. Allocated memory is still 1.0 GB. Free memory was 991.2 MB in the beginning and 985.5 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...