./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 32f26835 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 0.1.24-32f2683 [2019-11-24 21:03:54,066 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 21:03:54,071 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 21:03:54,087 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 21:03:54,088 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 21:03:54,091 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 21:03:54,093 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 21:03:54,112 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 21:03:54,114 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 21:03:54,116 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 21:03:54,119 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 21:03:54,127 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 21:03:54,129 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 21:03:54,135 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 21:03:54,138 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 21:03:54,143 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 21:03:54,148 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 21:03:54,152 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 21:03:54,157 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 21:03:54,166 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 21:03:54,174 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 21:03:54,182 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 21:03:54,184 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 21:03:54,191 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 21:03:54,198 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-24 21:03:54,199 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-24 21:03:54,200 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-24 21:03:54,204 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-24 21:03:54,205 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-24 21:03:54,209 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-24 21:03:54,210 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-24 21:03:54,211 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-24 21:03:54,212 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-24 21:03:54,215 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-24 21:03:54,219 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-24 21:03:54,220 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-24 21:03:54,221 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-24 21:03:54,221 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-24 21:03:54,222 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 21:03:54,222 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 21:03:54,227 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 21:03:54,228 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-24 21:03:54,258 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 21:03:54,258 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 21:03:54,260 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-24 21:03:54,260 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-24 21:03:54,261 INFO L138 SettingsManager]: * Use SBE=true [2019-11-24 21:03:54,262 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 21:03:54,262 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 21:03:54,262 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 21:03:54,262 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 21:03:54,263 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 21:03:54,264 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 21:03:54,264 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 21:03:54,264 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 21:03:54,264 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-24 21:03:54,265 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 21:03:54,265 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 21:03:54,267 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-24 21:03:54,267 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 21:03:54,267 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 21:03:54,267 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-24 21:03:54,270 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 21:03:54,270 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 21:03:54,270 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 21:03:54,270 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 21:03:54,271 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 21:03:54,271 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 21:03:54,271 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-24 21:03:54,271 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 21:03:54,271 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 21:03:54,272 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 [2019-11-24 21:03:54,802 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 21:03:54,831 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 21:03:54,838 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 21:03:54,840 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 21:03:54,842 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 21:03:54,844 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/filter_iir.c [2019-11-24 21:03:54,996 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/198aad842/7cf51f619dc64879931e69440607aaa3/FLAG914290e58 [2019-11-24 21:03:55,991 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 21:03:55,992 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/filter_iir.c [2019-11-24 21:03:56,011 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/198aad842/7cf51f619dc64879931e69440607aaa3/FLAG914290e58 [2019-11-24 21:03:56,134 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/198aad842/7cf51f619dc64879931e69440607aaa3 [2019-11-24 21:03:56,142 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 21:03:56,145 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-11-24 21:03:56,152 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 21:03:56,155 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 21:03:56,162 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 21:03:56,163 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:03:56" (1/1) ... [2019-11-24 21:03:56,172 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bd4a022 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:03:56, skipping insertion in model container [2019-11-24 21:03:56,173 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:03:56" (1/1) ... [2019-11-24 21:03:56,193 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 21:03:56,242 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 21:03:56,745 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 21:03:56,789 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 21:03:56,868 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 21:03:57,007 INFO L208 MainTranslator]: Completed translation [2019-11-24 21:03:57,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:03:57 WrapperNode [2019-11-24 21:03:57,009 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 21:03:57,011 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 21:03:57,014 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 21:03:57,014 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 21:03:57,035 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:03:57" (1/1) ... [2019-11-24 21:03:57,075 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:03:57" (1/1) ... [2019-11-24 21:03:57,149 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 21:03:57,154 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 21:03:57,154 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 21:03:57,156 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 21:03:57,167 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:03:57" (1/1) ... [2019-11-24 21:03:57,168 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:03:57" (1/1) ... [2019-11-24 21:03:57,180 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:03:57" (1/1) ... [2019-11-24 21:03:57,181 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:03:57" (1/1) ... [2019-11-24 21:03:57,219 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:03:57" (1/1) ... [2019-11-24 21:03:57,231 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:03:57" (1/1) ... [2019-11-24 21:03:57,237 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:03:57" (1/1) ... [2019-11-24 21:03:57,243 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 21:03:57,251 INFO L168 Benchmark]: Toolchain (without parser) took 1101.16 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 968.8 MB in the beginning and 991.0 MB in the end (delta: -22.2 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-24 21:03:57,252 INFO L168 Benchmark]: CDTParser took 3.07 ms. Allocated memory is still 1.0 GB. Free memory is still 994.6 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-24 21:03:57,267 INFO L168 Benchmark]: CACSL2BoogieTranslator took 858.70 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 968.8 MB in the beginning and 996.8 MB in the end (delta: -27.9 MB). Peak memory consumption was 22.3 MB. Max. memory is 12.5 GB. [2019-11-24 21:03:57,270 INFO L168 Benchmark]: Boogie Procedure Inliner took 142.16 ms. Allocated memory is still 1.0 GB. Free memory was 996.8 MB in the beginning and 991.0 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 12.5 GB. [2019-11-24 21:03:57,273 INFO L168 Benchmark]: Boogie Preprocessor took 89.83 ms. Allocated memory is still 1.0 GB. Free memory is still 991.0 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-24 21:03:57,285 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 3.07 ms. Allocated memory is still 1.0 GB. Free memory is still 994.6 MB. There was no memory consumed. Max. memory is 12.5 GB. * CACSL2BoogieTranslator took 858.70 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 968.8 MB in the beginning and 996.8 MB in the end (delta: -27.9 MB). Peak memory consumption was 22.3 MB. Max. memory is 12.5 GB. * Boogie Procedure Inliner took 142.16 ms. Allocated memory is still 1.0 GB. Free memory was 996.8 MB in the beginning and 991.0 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 12.5 GB. * Boogie Preprocessor took 89.83 ms. Allocated memory is still 1.0 GB. Free memory is still 991.0 MB. There was no memory consumed. Max. memory is 12.5 GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-32f2683 [2019-11-24 21:04:01,294 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 21:04:01,301 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 21:04:01,337 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 21:04:01,337 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 21:04:01,342 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 21:04:01,347 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 21:04:01,367 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 21:04:01,369 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 21:04:01,375 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 21:04:01,377 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 21:04:01,384 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 21:04:01,385 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 21:04:01,390 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 21:04:01,397 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 21:04:01,400 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 21:04:01,403 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 21:04:01,408 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 21:04:01,414 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 21:04:01,422 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 21:04:01,431 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 21:04:01,439 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 21:04:01,443 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 21:04:01,446 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 21:04:01,454 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-24 21:04:01,455 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-24 21:04:01,455 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-24 21:04:01,459 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-24 21:04:01,460 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-24 21:04:01,463 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-24 21:04:01,465 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-24 21:04:01,466 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-24 21:04:01,468 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-24 21:04:01,472 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-24 21:04:01,477 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-24 21:04:01,477 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-24 21:04:01,479 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-24 21:04:01,479 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-24 21:04:01,479 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 21:04:01,482 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 21:04:01,485 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 21:04:01,486 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-24 21:04:01,524 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 21:04:01,526 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 21:04:01,531 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-24 21:04:01,532 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-24 21:04:01,532 INFO L138 SettingsManager]: * Use SBE=true [2019-11-24 21:04:01,534 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 21:04:01,534 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 21:04:01,534 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 21:04:01,535 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 21:04:01,535 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 21:04:01,538 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 21:04:01,538 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 21:04:01,538 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-24 21:04:01,539 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-24 21:04:01,539 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-24 21:04:01,542 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 21:04:01,542 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 21:04:01,542 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-24 21:04:01,543 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 21:04:01,543 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 21:04:01,543 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-24 21:04:01,544 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 21:04:01,544 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 21:04:01,545 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 21:04:01,545 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 21:04:01,547 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 21:04:01,547 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 21:04:01,547 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-24 21:04:01,548 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-24 21:04:01,548 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 21:04:01,550 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 21:04:01,550 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 [2019-11-24 21:04:02,082 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 21:04:02,110 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 21:04:02,117 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 21:04:02,121 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 21:04:02,124 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 21:04:02,125 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/filter_iir.c [2019-11-24 21:04:02,281 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be649730c/841eb918f4d049e58af7aeb23434d12d/FLAG0aa0af843 [2019-11-24 21:04:03,330 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 21:04:03,331 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/filter_iir.c [2019-11-24 21:04:03,351 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be649730c/841eb918f4d049e58af7aeb23434d12d/FLAG0aa0af843 [2019-11-24 21:04:03,389 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be649730c/841eb918f4d049e58af7aeb23434d12d [2019-11-24 21:04:03,396 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 21:04:03,398 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-11-24 21:04:03,403 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 21:04:03,405 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 21:04:03,412 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 21:04:03,415 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:04:03" (1/1) ... [2019-11-24 21:04:03,424 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 24.11 09:04:03, skipping insertion in model container [2019-11-24 21:04:03,424 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:04:03" (1/1) ... [2019-11-24 21:04:03,445 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 21:04:03,495 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 21:04:03,979 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 21:04:04,146 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 21:04:04,275 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 21:04:04,319 INFO L208 MainTranslator]: Completed translation [2019-11-24 21:04:04,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:04:04 WrapperNode [2019-11-24 21:04:04,320 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 21:04:04,334 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 21:04:04,337 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 21:04:04,339 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 21:04:04,356 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:04:04" (1/1) ... [2019-11-24 21:04:04,408 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:04:04" (1/1) ... [2019-11-24 21:04:04,496 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 21:04:04,497 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 21:04:04,497 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 21:04:04,497 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 21:04:04,523 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:04:04" (1/1) ... [2019-11-24 21:04:04,524 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:04:04" (1/1) ... [2019-11-24 21:04:04,551 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:04:04" (1/1) ... [2019-11-24 21:04:04,554 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:04:04" (1/1) ... [2019-11-24 21:04:04,593 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:04:04" (1/1) ... [2019-11-24 21:04:04,612 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:04:04" (1/1) ... [2019-11-24 21:04:04,623 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:04:04" (1/1) ... [2019-11-24 21:04:04,635 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 21:04:04,650 INFO L168 Benchmark]: Toolchain (without parser) took 1245.14 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. [2019-11-24 21:04:04,651 INFO L168 Benchmark]: CDTParser took 1.04 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. [2019-11-24 21:04:04,655 INFO L168 Benchmark]: CACSL2BoogieTranslator took 917.76 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 991.3 MB in the end (delta: -29.7 MB). Peak memory consumption was 20.5 MB. Max. memory is 12.5 GB. [2019-11-24 21:04:04,663 INFO L168 Benchmark]: Boogie Procedure Inliner took 162.79 ms. Allocated memory is still 1.0 GB. Free memory was 991.3 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. [2019-11-24 21:04:04,665 INFO L168 Benchmark]: Boogie Preprocessor took 143.81 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-24 21:04:04,679 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.04 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 917.76 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 991.3 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 162.79 ms. Allocated memory is still 1.0 GB. Free memory was 991.3 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. * Boogie Preprocessor took 143.81 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 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...