./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/filter_iir.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/float-benchs/filter_iir.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 4d8de78cb0edef97ecd7b2050e9bc61ccb30afeb .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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/float-benchs/filter_iir.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 4d8de78cb0edef97ecd7b2050e9bc61ccb30afeb .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 16:06:57,943 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 16:06:57,949 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 16:06:57,982 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 16:06:57,986 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 16:06:57,988 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 16:06:57,993 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 16:06:58,012 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 16:06:58,015 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 16:06:58,020 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 16:06:58,024 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 16:06:58,027 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 16:06:58,028 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 16:06:58,034 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 16:06:58,040 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 16:06:58,043 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 16:06:58,048 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 16:06:58,052 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 16:06:58,057 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 16:06:58,065 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 16:06:58,073 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 16:06:58,077 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 16:06:58,082 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 16:06:58,085 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 16:06:58,093 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 16:06:58,095 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 16:06:58,095 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 16:06:58,098 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 16:06:58,100 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 16:06:58,101 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 16:06:58,103 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 16:06:58,106 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 16:06:58,107 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 16:06:58,111 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 16:06:58,113 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 16:06:58,113 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 16:06:58,116 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 16:06:58,117 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 16:06:58,117 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 16:06:58,122 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 16:06:58,124 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 16:06:58,126 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-27 16:06:58,167 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 16:06:58,169 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 16:06:58,174 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 16:06:58,175 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 16:06:58,175 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 16:06:58,176 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 16:06:58,178 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 16:06:58,178 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 16:06:58,178 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 16:06:58,179 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 16:06:58,180 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 16:06:58,180 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 16:06:58,180 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 16:06:58,183 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 16:06:58,184 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 16:06:58,184 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 16:06:58,184 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 16:06:58,185 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 16:06:58,185 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 16:06:58,185 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 16:06:58,188 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 16:06:58,188 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 16:06:58,189 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 16:06:58,189 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 16:06:58,189 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 16:06:58,189 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 16:06:58,190 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 16:06:58,190 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 16:06:58,191 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 -> 4d8de78cb0edef97ecd7b2050e9bc61ccb30afeb [2019-11-27 16:06:58,764 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 16:06:58,795 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 16:06:58,804 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 16:06:58,808 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 16:06:58,809 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 16:06:58,813 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/filter_iir.c [2019-11-27 16:06:58,979 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5962e67f/31d10ce5d8e646b4b24987d387ff9085/FLAGb2bb7da5d [2019-11-27 16:07:00,044 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 16:07:00,050 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/filter_iir.c [2019-11-27 16:07:00,069 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5962e67f/31d10ce5d8e646b4b24987d387ff9085/FLAGb2bb7da5d [2019-11-27 16:07:00,108 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5962e67f/31d10ce5d8e646b4b24987d387ff9085 [2019-11-27 16:07:00,116 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 16:07:00,118 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-11-27 16:07:00,123 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 16:07:00,127 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 16:07:00,131 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 16:07:00,138 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 04:07:00" (1/1) ... [2019-11-27 16:07:00,145 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f35d551 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:07:00, skipping insertion in model container [2019-11-27 16:07:00,146 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 04:07:00" (1/1) ... [2019-11-27 16:07:00,164 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 16:07:00,218 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 16:07:00,742 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 16:07:00,791 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 16:07:00,978 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 16:07:01,037 INFO L208 MainTranslator]: Completed translation [2019-11-27 16:07:01,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:07:01 WrapperNode [2019-11-27 16:07:01,041 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 16:07:01,042 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 16:07:01,042 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 16:07:01,042 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 16:07:01,062 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:07:01" (1/1) ... [2019-11-27 16:07:01,102 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:07:01" (1/1) ... [2019-11-27 16:07:01,154 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 16:07:01,156 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 16:07:01,157 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 16:07:01,157 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 16:07:01,175 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:07:01" (1/1) ... [2019-11-27 16:07:01,175 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:07:01" (1/1) ... [2019-11-27 16:07:01,183 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:07:01" (1/1) ... [2019-11-27 16:07:01,183 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:07:01" (1/1) ... [2019-11-27 16:07:01,220 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:07:01" (1/1) ... [2019-11-27 16:07:01,239 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:07:01" (1/1) ... [2019-11-27 16:07:01,249 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:07:01" (1/1) ... [2019-11-27 16:07:01,258 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 16:07:01,268 INFO L168 Benchmark]: Toolchain (without parser) took 1149.00 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 985.6 MB in the end (delta: -23.9 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 16:07:01,271 INFO L168 Benchmark]: CDTParser took 0.45 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 16:07:01,277 INFO L168 Benchmark]: CACSL2BoogieTranslator took 918.01 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 961.7 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 16:07:01,279 INFO L168 Benchmark]: Boogie Procedure Inliner took 114.16 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 16:07:01,280 INFO L168 Benchmark]: Boogie Preprocessor took 108.35 ms. Allocated memory is still 1.0 GB. Free memory was 991.4 MB in the beginning and 985.6 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 12.5 GB. [2019-11-27 16:07:01,289 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45 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 918.01 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 961.7 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 114.16 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 108.35 ms. Allocated memory is still 1.0 GB. Free memory was 991.4 MB in the beginning and 985.6 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 16:07:05,222 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 16:07:05,228 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 16:07:05,263 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 16:07:05,264 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 16:07:05,270 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 16:07:05,273 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 16:07:05,291 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 16:07:05,297 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 16:07:05,302 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 16:07:05,304 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 16:07:05,306 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 16:07:05,311 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 16:07:05,315 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 16:07:05,322 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 16:07:05,324 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 16:07:05,328 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 16:07:05,331 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 16:07:05,337 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 16:07:05,347 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 16:07:05,351 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 16:07:05,355 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 16:07:05,361 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 16:07:05,368 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 16:07:05,374 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 16:07:05,374 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 16:07:05,374 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 16:07:05,379 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 16:07:05,380 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 16:07:05,383 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 16:07:05,384 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 16:07:05,387 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 16:07:05,388 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 16:07:05,391 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 16:07:05,395 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 16:07:05,397 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 16:07:05,398 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 16:07:05,400 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 16:07:05,400 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 16:07:05,404 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 16:07:05,409 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 16:07:05,410 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-27 16:07:05,451 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 16:07:05,451 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 16:07:05,454 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 16:07:05,454 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 16:07:05,455 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 16:07:05,457 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 16:07:05,457 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 16:07:05,458 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 16:07:05,458 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 16:07:05,458 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 16:07:05,460 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 16:07:05,460 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 16:07:05,462 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-27 16:07:05,462 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-27 16:07:05,463 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 16:07:05,463 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 16:07:05,465 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 16:07:05,465 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 16:07:05,465 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 16:07:05,466 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 16:07:05,466 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 16:07:05,466 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 16:07:05,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 16:07:05,468 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 16:07:05,468 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 16:07:05,469 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 16:07:05,472 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-27 16:07:05,472 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-27 16:07:05,472 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 16:07:05,473 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-27 16:07:05,474 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 -> 4d8de78cb0edef97ecd7b2050e9bc61ccb30afeb [2019-11-27 16:07:06,033 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 16:07:06,063 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 16:07:06,070 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 16:07:06,074 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 16:07:06,078 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 16:07:06,080 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/filter_iir.c [2019-11-27 16:07:06,239 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3fbebffd/3d13b80390af432bad2dde5a4cda281e/FLAG3d9a38292 [2019-11-27 16:07:07,319 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 16:07:07,320 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/filter_iir.c [2019-11-27 16:07:07,342 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3fbebffd/3d13b80390af432bad2dde5a4cda281e/FLAG3d9a38292 [2019-11-27 16:07:07,382 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3fbebffd/3d13b80390af432bad2dde5a4cda281e [2019-11-27 16:07:07,391 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 16:07:07,398 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-11-27 16:07:07,403 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 16:07:07,404 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 16:07:07,412 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 16:07:07,415 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 04:07:07" (1/1) ... [2019-11-27 16:07:07,423 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c7cbcc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:07:07, skipping insertion in model container [2019-11-27 16:07:07,424 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 04:07:07" (1/1) ... [2019-11-27 16:07:07,443 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 16:07:07,503 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 16:07:08,046 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 16:07:08,178 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 16:07:08,290 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 16:07:08,359 INFO L208 MainTranslator]: Completed translation [2019-11-27 16:07:08,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:07:08 WrapperNode [2019-11-27 16:07:08,361 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 16:07:08,368 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 16:07:08,368 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 16:07:08,368 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 16:07:08,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:07:08" (1/1) ... [2019-11-27 16:07:08,416 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:07:08" (1/1) ... [2019-11-27 16:07:08,473 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 16:07:08,474 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 16:07:08,476 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 16:07:08,476 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 16:07:08,490 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:07:08" (1/1) ... [2019-11-27 16:07:08,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:07:08" (1/1) ... [2019-11-27 16:07:08,513 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:07:08" (1/1) ... [2019-11-27 16:07:08,516 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:07:08" (1/1) ... [2019-11-27 16:07:08,548 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:07:08" (1/1) ... [2019-11-27 16:07:08,559 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:07:08" (1/1) ... [2019-11-27 16:07:08,566 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:07:08" (1/1) ... [2019-11-27 16:07:08,578 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 16:07:08,590 INFO L168 Benchmark]: Toolchain (without parser) took 1185.42 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 984.3 MB in the end (delta: -22.6 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 16:07:08,601 INFO L168 Benchmark]: CDTParser took 0.38 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 16:07:08,607 INFO L168 Benchmark]: CACSL2BoogieTranslator took 958.74 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 991.4 MB in the end (delta: -29.7 MB). Peak memory consumption was 20.5 MB. Max. memory is 12.5 GB. [2019-11-27 16:07:08,608 INFO L168 Benchmark]: Boogie Procedure Inliner took 106.36 ms. Allocated memory is still 1.0 GB. Free memory was 991.4 MB in the beginning and 984.3 MB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 12.5 GB. [2019-11-27 16:07:08,609 INFO L168 Benchmark]: Boogie Preprocessor took 106.46 ms. Allocated memory is still 1.0 GB. Free memory is still 984.3 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 16:07:08,627 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 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 958.74 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 991.4 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 106.36 ms. Allocated memory is still 1.0 GB. Free memory was 991.4 MB in the beginning and 984.3 MB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 12.5 GB. * Boogie Preprocessor took 106.46 ms. Allocated memory is still 1.0 GB. Free memory is still 984.3 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...