./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-acceleration/nested_1-2.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/loop-acceleration/nested_1-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 686a2dea11f9b7e026c45bd49045383307faf72e .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/loop-acceleration/nested_1-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 686a2dea11f9b7e026c45bd49045383307faf72e .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 16:13:07,005 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 16:13:07,009 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 16:13:07,035 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 16:13:07,037 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 16:13:07,050 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 16:13:07,052 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 16:13:07,069 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 16:13:07,072 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 16:13:07,079 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 16:13:07,084 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 16:13:07,089 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 16:13:07,089 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 16:13:07,095 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 16:13:07,099 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 16:13:07,105 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 16:13:07,107 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 16:13:07,111 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 16:13:07,117 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 16:13:07,125 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 16:13:07,136 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 16:13:07,139 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 16:13:07,145 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 16:13:07,147 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 16:13:07,156 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 16:13:07,156 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 16:13:07,158 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 16:13:07,161 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 16:13:07,162 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 16:13:07,166 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 16:13:07,166 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 16:13:07,167 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 16:13:07,170 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 16:13:07,173 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 16:13:07,176 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 16:13:07,177 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 16:13:07,179 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 16:13:07,181 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 16:13:07,181 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 16:13:07,184 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 16:13:07,187 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 16:13:07,192 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-27 16:13:07,230 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 16:13:07,233 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 16:13:07,236 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 16:13:07,239 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 16:13:07,239 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 16:13:07,240 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 16:13:07,240 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 16:13:07,240 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 16:13:07,241 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 16:13:07,244 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 16:13:07,245 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 16:13:07,246 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 16:13:07,246 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 16:13:07,246 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 16:13:07,247 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 16:13:07,247 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 16:13:07,247 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 16:13:07,248 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 16:13:07,249 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 16:13:07,249 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 16:13:07,251 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 16:13:07,251 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 16:13:07,252 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 16:13:07,252 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 16:13:07,254 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 16:13:07,254 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 16:13:07,254 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 16:13:07,255 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 16:13:07,255 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 -> 686a2dea11f9b7e026c45bd49045383307faf72e [2019-11-27 16:13:07,803 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 16:13:07,833 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 16:13:07,842 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 16:13:07,844 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 16:13:07,845 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 16:13:07,848 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-acceleration/nested_1-2.c [2019-11-27 16:13:08,011 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f56827b1e/fbc9cdfed88c4980849a918b84fc8aba/FLAGc2d36b2bd [2019-11-27 16:13:09,034 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 16:13:09,040 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-acceleration/nested_1-2.c [2019-11-27 16:13:09,053 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f56827b1e/fbc9cdfed88c4980849a918b84fc8aba/FLAGc2d36b2bd [2019-11-27 16:13:09,095 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f56827b1e/fbc9cdfed88c4980849a918b84fc8aba [2019-11-27 16:13:09,102 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 16:13:09,109 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-11-27 16:13:09,111 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 16:13:09,111 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 16:13:09,122 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 16:13:09,123 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 04:13:09" (1/1) ... [2019-11-27 16:13:09,131 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5734e45e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:13:09, skipping insertion in model container [2019-11-27 16:13:09,132 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 04:13:09" (1/1) ... [2019-11-27 16:13:09,151 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 16:13:09,195 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 16:13:09,603 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 16:13:09,612 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 16:13:09,656 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 16:13:09,680 INFO L208 MainTranslator]: Completed translation [2019-11-27 16:13:09,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:13:09 WrapperNode [2019-11-27 16:13:09,687 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 16:13:09,695 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 16:13:09,695 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 16:13:09,696 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 16:13:09,710 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:13:09" (1/1) ... [2019-11-27 16:13:09,717 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:13:09" (1/1) ... [2019-11-27 16:13:09,869 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 16:13:09,870 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 16:13:09,870 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 16:13:09,876 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 16:13:09,891 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:13:09" (1/1) ... [2019-11-27 16:13:09,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:13:09" (1/1) ... [2019-11-27 16:13:09,892 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:13:09" (1/1) ... [2019-11-27 16:13:09,893 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:13:09" (1/1) ... [2019-11-27 16:13:09,900 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:13:09" (1/1) ... [2019-11-27 16:13:09,910 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:13:09" (1/1) ... [2019-11-27 16:13:09,916 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:13:09" (1/1) ... [2019-11-27 16:13:09,918 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 16:13:09,929 INFO L168 Benchmark]: Toolchain (without parser) took 814.89 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 961.7 MB in the beginning and 991.1 MB in the end (delta: -29.4 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 16:13:09,932 INFO L168 Benchmark]: CDTParser took 0.37 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 16:13:09,946 INFO L168 Benchmark]: CACSL2BoogieTranslator took 576.42 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 950.2 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 12.5 GB. [2019-11-27 16:13:09,948 INFO L168 Benchmark]: Boogie Procedure Inliner took 174.82 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 950.2 MB in the beginning and 996.8 MB in the end (delta: -46.6 MB). Peak memory consumption was 9.3 MB. Max. memory is 12.5 GB. [2019-11-27 16:13:09,952 INFO L168 Benchmark]: Boogie Preprocessor took 48.60 ms. Allocated memory is still 1.0 GB. Free memory was 996.8 MB in the beginning and 991.1 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 12.5 GB. [2019-11-27 16:13:09,965 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 1.0 GB. Free memory is still 988.9 MB. There was no memory consumed. Max. memory is 12.5 GB. * CACSL2BoogieTranslator took 576.42 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 950.2 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 12.5 GB. * Boogie Procedure Inliner took 174.82 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 950.2 MB in the beginning and 996.8 MB in the end (delta: -46.6 MB). Peak memory consumption was 9.3 MB. Max. memory is 12.5 GB. * Boogie Preprocessor took 48.60 ms. Allocated memory is still 1.0 GB. Free memory was 996.8 MB in the beginning and 991.1 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 12.5 GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-509859d [2019-11-27 16:13:13,900 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 16:13:13,906 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 16:13:13,952 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 16:13:13,953 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 16:13:13,955 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 16:13:13,960 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 16:13:13,978 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 16:13:13,984 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 16:13:13,988 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 16:13:13,991 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 16:13:13,997 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 16:13:13,999 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 16:13:14,003 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 16:13:14,009 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 16:13:14,012 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 16:13:14,017 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 16:13:14,020 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 16:13:14,022 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 16:13:14,034 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 16:13:14,038 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 16:13:14,048 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 16:13:14,051 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 16:13:14,055 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 16:13:14,066 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 16:13:14,066 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 16:13:14,067 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 16:13:14,069 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 16:13:14,071 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 16:13:14,075 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 16:13:14,075 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 16:13:14,076 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 16:13:14,082 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 16:13:14,083 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 16:13:14,085 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 16:13:14,088 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 16:13:14,089 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 16:13:14,090 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 16:13:14,091 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 16:13:14,092 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 16:13:14,098 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 16:13:14,099 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-27 16:13:14,142 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 16:13:14,142 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 16:13:14,145 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 16:13:14,147 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 16:13:14,147 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 16:13:14,147 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 16:13:14,149 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 16:13:14,149 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 16:13:14,149 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 16:13:14,151 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 16:13:14,152 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 16:13:14,153 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 16:13:14,153 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-27 16:13:14,156 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-27 16:13:14,157 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 16:13:14,157 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 16:13:14,157 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 16:13:14,157 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 16:13:14,158 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 16:13:14,158 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 16:13:14,158 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 16:13:14,159 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 16:13:14,159 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 16:13:14,161 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 16:13:14,161 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 16:13:14,162 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 16:13:14,162 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-27 16:13:14,162 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-27 16:13:14,162 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 16:13:14,164 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-27 16:13:14,165 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 -> 686a2dea11f9b7e026c45bd49045383307faf72e [2019-11-27 16:13:14,722 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 16:13:14,750 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 16:13:14,760 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 16:13:14,762 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 16:13:14,765 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 16:13:14,767 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-acceleration/nested_1-2.c [2019-11-27 16:13:14,927 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d474d74f/18f31b82650b4e05a5dfacfefeb3dab5/FLAG7bcbd0f08 [2019-11-27 16:13:15,975 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 16:13:15,978 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-acceleration/nested_1-2.c [2019-11-27 16:13:15,993 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d474d74f/18f31b82650b4e05a5dfacfefeb3dab5/FLAG7bcbd0f08 [2019-11-27 16:13:16,033 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d474d74f/18f31b82650b4e05a5dfacfefeb3dab5 [2019-11-27 16:13:16,040 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 16:13:16,049 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-11-27 16:13:16,051 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 16:13:16,053 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 16:13:16,062 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 16:13:16,063 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 04:13:16" (1/1) ... [2019-11-27 16:13:16,072 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5734e45e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:13:16, skipping insertion in model container [2019-11-27 16:13:16,073 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 04:13:16" (1/1) ... [2019-11-27 16:13:16,091 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 16:13:16,148 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 16:13:16,599 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 16:13:16,615 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 16:13:16,660 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 16:13:16,696 INFO L208 MainTranslator]: Completed translation [2019-11-27 16:13:16,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:13:16 WrapperNode [2019-11-27 16:13:16,700 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 16:13:16,701 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 16:13:16,703 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 16:13:16,703 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 16:13:16,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:13:16" (1/1) ... [2019-11-27 16:13:16,872 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:13:16" (1/1) ... [2019-11-27 16:13:16,911 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 16:13:16,912 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 16:13:16,912 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 16:13:16,912 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 16:13:16,935 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:13:16" (1/1) ... [2019-11-27 16:13:16,938 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:13:16" (1/1) ... [2019-11-27 16:13:16,940 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:13:16" (1/1) ... [2019-11-27 16:13:16,943 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:13:16" (1/1) ... [2019-11-27 16:13:16,954 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:13:16" (1/1) ... [2019-11-27 16:13:16,962 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:13:16" (1/1) ... [2019-11-27 16:13:16,967 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:13:16" (1/1) ... [2019-11-27 16:13:16,979 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 16:13:16,988 INFO L168 Benchmark]: Toolchain (without parser) took 933.76 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: -29.6 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 16:13:16,992 INFO L168 Benchmark]: CDTParser took 0.90 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 16:13:16,994 INFO L168 Benchmark]: CACSL2BoogieTranslator took 649.61 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 950.2 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 12.5 GB. [2019-11-27 16:13:16,998 INFO L168 Benchmark]: Boogie Procedure Inliner took 210.38 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 950.2 MB in the beginning and 997.0 MB in the end (delta: -46.7 MB). Peak memory consumption was 9.2 MB. Max. memory is 12.5 GB. [2019-11-27 16:13:17,002 INFO L168 Benchmark]: Boogie Preprocessor took 67.61 ms. Allocated memory is still 1.0 GB. Free memory was 997.0 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. [2019-11-27 16:13:17,014 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.90 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 649.61 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 950.2 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 12.5 GB. * Boogie Procedure Inliner took 210.38 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 950.2 MB in the beginning and 997.0 MB in the end (delta: -46.7 MB). Peak memory consumption was 9.2 MB. Max. memory is 12.5 GB. * Boogie Preprocessor took 67.61 ms. Allocated memory is still 1.0 GB. Free memory was 997.0 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...