./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float13_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_6c613038-4674-45a9-9dc1-da6c0abfccf0/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6c613038-4674-45a9-9dc1-da6c0abfccf0/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6c613038-4674-45a9-9dc1-da6c0abfccf0/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6c613038-4674-45a9-9dc1-da6c0abfccf0/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float13_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_6c613038-4674-45a9-9dc1-da6c0abfccf0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6c613038-4674-45a9-9dc1-da6c0abfccf0/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0a5777cb7d0bbf0d840893f3aa39606f5237d830 ................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_6c613038-4674-45a9-9dc1-da6c0abfccf0/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6c613038-4674-45a9-9dc1-da6c0abfccf0/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6c613038-4674-45a9-9dc1-da6c0abfccf0/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6c613038-4674-45a9-9dc1-da6c0abfccf0/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float13_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_6c613038-4674-45a9-9dc1-da6c0abfccf0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6c613038-4674-45a9-9dc1-da6c0abfccf0/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0a5777cb7d0bbf0d840893f3aa39606f5237d830 ...................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 05:35:08,248 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 05:35:08,249 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 05:35:08,255 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 05:35:08,255 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 05:35:08,256 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 05:35:08,257 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 05:35:08,259 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 05:35:08,260 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 05:35:08,260 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 05:35:08,261 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 05:35:08,261 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 05:35:08,262 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 05:35:08,263 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 05:35:08,264 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 05:35:08,264 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 05:35:08,265 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 05:35:08,266 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 05:35:08,267 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 05:35:08,268 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 05:35:08,269 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 05:35:08,269 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 05:35:08,271 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 05:35:08,272 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 05:35:08,272 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 05:35:08,272 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 05:35:08,273 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 05:35:08,273 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 05:35:08,274 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 05:35:08,274 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 05:35:08,274 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 05:35:08,275 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 05:35:08,275 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 05:35:08,275 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 05:35:08,275 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 05:35:08,276 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 05:35:08,276 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6c613038-4674-45a9-9dc1-da6c0abfccf0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-23 05:35:08,283 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 05:35:08,283 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 05:35:08,284 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 05:35:08,284 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 05:35:08,284 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 05:35:08,285 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 05:35:08,285 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 05:35:08,285 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 05:35:08,285 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 05:35:08,285 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 05:35:08,285 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 05:35:08,285 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 05:35:08,285 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 05:35:08,286 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 05:35:08,286 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 05:35:08,286 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 05:35:08,286 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 05:35:08,287 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 05:35:08,287 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 05:35:08,287 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 05:35:08,287 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 05:35:08,287 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 05:35:08,287 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 05:35:08,287 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 05:35:08,287 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 05:35:08,288 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 05:35:08,288 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 05:35:08,288 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 05:35:08,288 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 05:35:08,288 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 05:35:08,288 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 05:35:08,288 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 05:35:08,289 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 05:35:08,289 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 05:35:08,289 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 05:35:08,289 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 05:35:08,289 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 05:35:08,289 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_6c613038-4674-45a9-9dc1-da6c0abfccf0/bin-2019/utaipan 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 -> Taipan 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 -> 0a5777cb7d0bbf0d840893f3aa39606f5237d830 [2018-11-23 05:35:08,312 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 05:35:08,322 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 05:35:08,324 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 05:35:08,325 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 05:35:08,326 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 05:35:08,326 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6c613038-4674-45a9-9dc1-da6c0abfccf0/bin-2019/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float13_true-unreach-call_true-termination.i [2018-11-23 05:35:08,372 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6c613038-4674-45a9-9dc1-da6c0abfccf0/bin-2019/utaipan/data/58cecc9fb/07858ce7e483465f9d08d54cd46ee2aa/FLAGcad4aa5eb [2018-11-23 05:35:08,767 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 05:35:08,767 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6c613038-4674-45a9-9dc1-da6c0abfccf0/sv-benchmarks/c/floats-cbmc-regression/float13_true-unreach-call_true-termination.i [2018-11-23 05:35:08,772 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6c613038-4674-45a9-9dc1-da6c0abfccf0/bin-2019/utaipan/data/58cecc9fb/07858ce7e483465f9d08d54cd46ee2aa/FLAGcad4aa5eb [2018-11-23 05:35:08,782 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6c613038-4674-45a9-9dc1-da6c0abfccf0/bin-2019/utaipan/data/58cecc9fb/07858ce7e483465f9d08d54cd46ee2aa [2018-11-23 05:35:08,784 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 05:35:08,785 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 05:35:08,786 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 05:35:08,786 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 05:35:08,788 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 05:35:08,789 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:35:08" (1/1) ... [2018-11-23 05:35:08,791 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cbca776 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:35:08, skipping insertion in model container [2018-11-23 05:35:08,791 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:35:08" (1/1) ... [2018-11-23 05:35:08,797 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 05:35:08,811 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 05:35:08,920 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 05:35:08,924 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 05:35:08,935 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 05:35:08,943 INFO L195 MainTranslator]: Completed translation [2018-11-23 05:35:08,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:35:08 WrapperNode [2018-11-23 05:35:08,943 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 05:35:08,944 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 05:35:08,944 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 05:35:08,944 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 05:35:08,949 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:35:08" (1/1) ... [2018-11-23 05:35:08,952 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:35:08" (1/1) ... [2018-11-23 05:35:08,956 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 05:35:08,956 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 05:35:08,957 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 05:35:08,957 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 05:35:08,962 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:35:08" (1/1) ... [2018-11-23 05:35:08,962 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:35:08" (1/1) ... [2018-11-23 05:35:08,963 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:35:08" (1/1) ... [2018-11-23 05:35:08,963 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:35:08" (1/1) ... [2018-11-23 05:35:08,966 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:35:08" (1/1) ... [2018-11-23 05:35:08,967 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:35:08" (1/1) ... [2018-11-23 05:35:08,968 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:35:08" (1/1) ... [2018-11-23 05:35:08,969 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 05:35:08,969 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 05:35:08,969 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 05:35:08,969 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 05:35:08,970 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:35:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6c613038-4674-45a9-9dc1-da6c0abfccf0/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 05:35:09,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 05:35:09,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 05:35:09,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 05:35:09,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 05:35:09,043 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 05:35:09,043 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 05:35:09,162 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 05:35:09,162 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-23 05:35:09,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:35:09 BoogieIcfgContainer [2018-11-23 05:35:09,162 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 05:35:09,163 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 05:35:09,163 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 05:35:09,165 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 05:35:09,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:35:08" (1/3) ... [2018-11-23 05:35:09,165 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fe3079 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:35:09, skipping insertion in model container [2018-11-23 05:35:09,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:35:08" (2/3) ... [2018-11-23 05:35:09,165 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fe3079 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:35:09, skipping insertion in model container [2018-11-23 05:35:09,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:35:09" (3/3) ... [2018-11-23 05:35:09,167 INFO L112 eAbstractionObserver]: Analyzing ICFG float13_true-unreach-call_true-termination.i [2018-11-23 05:35:09,175 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 05:35:09,181 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2018-11-23 05:35:09,192 INFO L257 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2018-11-23 05:35:09,215 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 05:35:09,215 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 05:35:09,215 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 05:35:09,215 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 05:35:09,216 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 05:35:09,216 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 05:35:09,216 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 05:35:09,216 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 05:35:09,227 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2018-11-23 05:35:09,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-23 05:35:09,230 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 05:35:09,231 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 05:35:09,232 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 05:35:09,235 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:35:09,236 INFO L82 PathProgramCache]: Analyzing trace with hash -1459462506, now seen corresponding path program 1 times [2018-11-23 05:35:09,238 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 05:35:09,274 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:35:09,274 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:35:09,275 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:35:09,275 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 05:35:09,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 05:35:09,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 05:35:09,323 INFO L469 BasicCegarLoop]: Counterexample might be feasible ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] CALL call ULTIMATE.init(); VAL [|old(~minus_infinity~0)|=4.0, |old(~NaN~0)|=2.0, |old(~plus_infinity~0)|=3.0, ~minus_infinity~0=4.0, ~NaN~0=2.0, ~plus_infinity~0=3.0] [?] ~plus_infinity~0 := ~someBinaryArithmeticFLOAToperation(1.0, 0.0);~minus_infinity~0 := ~someBinaryArithmeticFLOAToperation(0.0, ~someUnaryFLOAToperation(0.0));~NaN~0 := ~someBinaryArithmeticFLOAToperation(0.0, ~someBinaryArithmeticFLOAToperation(1.0, 0.0)); VAL [|old(~minus_infinity~0)|=4.0, |old(~NaN~0)|=2.0, |old(~plus_infinity~0)|=3.0] [?] assume true; VAL [|old(~minus_infinity~0)|=4.0, |old(~NaN~0)|=2.0, |old(~plus_infinity~0)|=3.0] [?] RET #80#return; [?] CALL call #t~ret0 := main(); [?] havoc ~temp~0;~temp~0 := (if 0 == (if ~someBinaryFLOATComparisonOperation(~NaN~0, ~plus_infinity~0) then 1 else 0) then 0 else 1); VAL [main_~temp~0=1] [?] assume !(0 == ~temp~0 % 256); VAL [main_~temp~0=1] [?] assume !false; VAL [main_~temp~0=1] [?] CALL call ULTIMATE.init(); VAL [old(~minus_infinity~0)=4.0, old(~NaN~0)=2.0, old(~plus_infinity~0)=3.0, ~minus_infinity~0=4.0, ~NaN~0=2.0, ~plus_infinity~0=3.0] [L3] ~plus_infinity~0 := ~someBinaryArithmeticFLOAToperation(1.0, 0.0); [L4] ~minus_infinity~0 := ~someBinaryArithmeticFLOAToperation(0.0, ~someUnaryFLOAToperation(0.0)); [L5] ~NaN~0 := ~someBinaryArithmeticFLOAToperation(0.0, ~someBinaryArithmeticFLOAToperation(1.0, 0.0)); VAL [old(~minus_infinity~0)=4.0, old(~NaN~0)=2.0, old(~plus_infinity~0)=3.0] [?] ensures true; VAL [old(~minus_infinity~0)=4.0, old(~NaN~0)=2.0, old(~plus_infinity~0)=3.0] [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(); [L9] havoc ~temp~0; [L12] ~temp~0 := (if 0 == (if ~someBinaryFLOATComparisonOperation(~NaN~0, ~plus_infinity~0) then 1 else 0) then 0 else 1); VAL [~temp~0=1] [L13] assume !(0 == ~temp~0 % 256); VAL [~temp~0=1] [L13] assert false; VAL [~temp~0=1] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] CALL call ULTIMATE.init(); VAL [old(~minus_infinity~0)=4.0, old(~NaN~0)=2.0, old(~plus_infinity~0)=3.0, ~minus_infinity~0=4.0, ~NaN~0=2.0, ~plus_infinity~0=3.0] [L3] ~plus_infinity~0 := ~someBinaryArithmeticFLOAToperation(1.0, 0.0); [L4] ~minus_infinity~0 := ~someBinaryArithmeticFLOAToperation(0.0, ~someUnaryFLOAToperation(0.0)); [L5] ~NaN~0 := ~someBinaryArithmeticFLOAToperation(0.0, ~someBinaryArithmeticFLOAToperation(1.0, 0.0)); VAL [old(~minus_infinity~0)=4.0, old(~NaN~0)=2.0, old(~plus_infinity~0)=3.0] [?] ensures true; VAL [old(~minus_infinity~0)=4.0, old(~NaN~0)=2.0, old(~plus_infinity~0)=3.0] [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(); [L9] havoc ~temp~0; [L12] ~temp~0 := (if 0 == (if ~someBinaryFLOATComparisonOperation(~NaN~0, ~plus_infinity~0) then 1 else 0) then 0 else 1); VAL [~temp~0=1] [L13] assume !(0 == ~temp~0 % 256); VAL [~temp~0=1] [L13] assert false; VAL [~temp~0=1] [?] CALL call ULTIMATE.init(); VAL [old(~minus_infinity~0)=4.0, old(~NaN~0)=2.0, old(~plus_infinity~0)=3.0, ~minus_infinity~0=4.0, ~NaN~0=2.0, ~plus_infinity~0=3.0] [L3] ~plus_infinity~0 := ~someBinaryArithmeticFLOAToperation(1.0, 0.0); [L4] ~minus_infinity~0 := ~someBinaryArithmeticFLOAToperation(0.0, ~someUnaryFLOAToperation(0.0)); [L5] ~NaN~0 := ~someBinaryArithmeticFLOAToperation(0.0, ~someBinaryArithmeticFLOAToperation(1.0, 0.0)); VAL [old(~minus_infinity~0)=4.0, old(~NaN~0)=2.0, old(~plus_infinity~0)=3.0] [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(); [L9] havoc ~temp~0; [L12] ~temp~0 := (if 0 == (if ~someBinaryFLOATComparisonOperation(~NaN~0, ~plus_infinity~0) then 1 else 0) then 0 else 1); VAL [~temp~0=1] [L13] COND TRUE !(0 == ~temp~0 % 256) VAL [~temp~0=1] [L13] assert false; VAL [~temp~0=1] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [?] CALL call ULTIMATE.init(); VAL [old(~minus_infinity~0)=4.0, old(~NaN~0)=2.0, old(~plus_infinity~0)=3.0, ~minus_infinity~0=4.0, ~NaN~0=2.0, ~plus_infinity~0=3.0] [L3] ~plus_infinity~0 := ~someBinaryArithmeticFLOAToperation(1.0, 0.0); [L4] ~minus_infinity~0 := ~someBinaryArithmeticFLOAToperation(0.0, ~someUnaryFLOAToperation(0.0)); [L5] ~NaN~0 := ~someBinaryArithmeticFLOAToperation(0.0, ~someBinaryArithmeticFLOAToperation(1.0, 0.0)); VAL [old(~minus_infinity~0)=4.0, old(~NaN~0)=2.0, old(~plus_infinity~0)=3.0] [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(); [L9] havoc ~temp~0; [L12] ~temp~0 := (if 0 == (if ~someBinaryFLOATComparisonOperation(~NaN~0, ~plus_infinity~0) then 1 else 0) then 0 else 1); VAL [~temp~0=1] [L13] COND TRUE !(0 == ~temp~0 % 256) VAL [~temp~0=1] [L13] assert false; VAL [~temp~0=1] [?] CALL call ULTIMATE.init(); VAL [old(~minus_infinity~0)=4.0, old(~NaN~0)=2.0, old(~plus_infinity~0)=3.0, ~minus_infinity~0=4.0, ~NaN~0=2.0, ~plus_infinity~0=3.0] [L3] ~plus_infinity~0 := ~someBinaryArithmeticFLOAToperation(1.0, 0.0); [L4] ~minus_infinity~0 := ~someBinaryArithmeticFLOAToperation(0.0, ~someUnaryFLOAToperation(0.0)); [L5] ~NaN~0 := ~someBinaryArithmeticFLOAToperation(0.0, ~someBinaryArithmeticFLOAToperation(1.0, 0.0)); VAL [old(~minus_infinity~0)=4.0, old(~NaN~0)=2.0, old(~plus_infinity~0)=3.0] [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(); [L9] havoc ~temp~0; [L12] ~temp~0 := (if 0 == (if ~someBinaryFLOATComparisonOperation(~NaN~0, ~plus_infinity~0) then 1 else 0) then 0 else 1); VAL [~temp~0=1] [L13] COND TRUE !(0 == ~temp~0 % 256) VAL [~temp~0=1] [L13] assert false; VAL [~temp~0=1] ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [?] CALL call ULTIMATE.init(); VAL [old(~minus_infinity~0)=4.0, old(~NaN~0)=2.0, old(~plus_infinity~0)=3.0, ~minus_infinity~0=4.0, ~NaN~0=2.0, ~plus_infinity~0=3.0] [L3] ~plus_infinity~0 := ~someBinaryArithmeticFLOAToperation(1.0, 0.0); [L4] ~minus_infinity~0 := ~someBinaryArithmeticFLOAToperation(0.0, ~someUnaryFLOAToperation(0.0)); [L5] ~NaN~0 := ~someBinaryArithmeticFLOAToperation(0.0, ~someBinaryArithmeticFLOAToperation(1.0, 0.0)); VAL [old(~minus_infinity~0)=4.0, old(~NaN~0)=2.0, old(~plus_infinity~0)=3.0] [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(); [L9] havoc ~temp~0; [L12] ~temp~0 := (if 0 == (if ~someBinaryFLOATComparisonOperation(~NaN~0, ~plus_infinity~0) then 1 else 0) then 0 else 1); VAL [~temp~0=1] [L13] COND TRUE !(0 == ~temp~0 % 256) VAL [~temp~0=1] [L13] assert false; VAL [~temp~0=1] [L3] const float plus_infinity = 1.0f/0.0f; [L4] const float minus_infinity = 0.0f/-0.0f; [L5] const float NaN = 0.0f * (1.0f/0.0f); VAL [\old(minus_infinity)=4, \old(NaN)=2, \old(plus_infinity)=3] [L9] _Bool temp; [L12] temp = NaN < plus_infinity VAL [temp=1] [L13] COND TRUE !(!temp) VAL [temp=1] [L13] __VERIFIER_error() VAL [temp=1] ----- [2018-11-23 05:35:09,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 05:35:09 BoogieIcfgContainer [2018-11-23 05:35:09,346 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 05:35:09,346 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 05:35:09,346 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 05:35:09,346 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 05:35:09,347 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:35:09" (3/4) ... [2018-11-23 05:35:09,349 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-23 05:35:09,349 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 05:35:09,350 INFO L168 Benchmark]: Toolchain (without parser) took 564.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 958.2 MB in the beginning and 1.1 GB in the end (delta: -144.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 05:35:09,351 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 05:35:09,351 INFO L168 Benchmark]: CACSL2BoogieTranslator took 157.57 ms. Allocated memory is still 1.0 GB. Free memory was 958.2 MB in the beginning and 947.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 05:35:09,352 INFO L168 Benchmark]: Boogie Procedure Inliner took 12.51 ms. Allocated memory is still 1.0 GB. Free memory was 947.4 MB in the beginning and 944.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 05:35:09,352 INFO L168 Benchmark]: Boogie Preprocessor took 12.45 ms. Allocated memory is still 1.0 GB. Free memory is still 944.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 05:35:09,353 INFO L168 Benchmark]: RCFGBuilder took 193.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -179.8 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2018-11-23 05:35:09,353 INFO L168 Benchmark]: TraceAbstraction took 182.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-23 05:35:09,354 INFO L168 Benchmark]: Witness Printer took 3.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 05:35:09,357 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 157.57 ms. Allocated memory is still 1.0 GB. Free memory was 958.2 MB in the beginning and 947.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 12.51 ms. Allocated memory is still 1.0 GB. Free memory was 947.4 MB in the beginning and 944.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.45 ms. Allocated memory is still 1.0 GB. Free memory is still 944.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 193.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -179.8 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 182.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Witness Printer took 3.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 13]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 12, overapproximation of someBinaryArithmeticFLOAToperation at line 3. Possible FailurePath: [L3] const float plus_infinity = 1.0f/0.0f; [L4] const float minus_infinity = 0.0f/-0.0f; [L5] const float NaN = 0.0f * (1.0f/0.0f); VAL [\old(minus_infinity)=4, \old(NaN)=2, \old(plus_infinity)=3] [L9] _Bool temp; [L12] temp = NaN < plus_infinity VAL [temp=1] [L13] COND TRUE !(!temp) VAL [temp=1] [L13] __VERIFIER_error() VAL [temp=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 42 locations, 8 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-aa41828 [2018-11-23 05:35:10,760 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 05:35:10,762 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 05:35:10,771 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 05:35:10,771 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 05:35:10,772 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 05:35:10,772 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 05:35:10,774 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 05:35:10,775 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 05:35:10,775 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 05:35:10,776 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 05:35:10,776 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 05:35:10,777 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 05:35:10,778 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 05:35:10,779 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 05:35:10,779 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 05:35:10,780 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 05:35:10,781 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 05:35:10,782 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 05:35:10,783 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 05:35:10,784 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 05:35:10,785 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 05:35:10,786 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 05:35:10,787 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 05:35:10,787 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 05:35:10,788 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 05:35:10,788 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 05:35:10,789 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 05:35:10,789 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 05:35:10,790 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 05:35:10,790 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 05:35:10,791 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 05:35:10,791 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 05:35:10,791 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 05:35:10,792 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 05:35:10,792 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 05:35:10,792 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6c613038-4674-45a9-9dc1-da6c0abfccf0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-23 05:35:10,803 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 05:35:10,803 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 05:35:10,804 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 05:35:10,804 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 05:35:10,804 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 05:35:10,804 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 05:35:10,804 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 05:35:10,804 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 05:35:10,804 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 05:35:10,805 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 05:35:10,805 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 05:35:10,805 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 05:35:10,805 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 05:35:10,805 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 05:35:10,806 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 05:35:10,806 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 05:35:10,806 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 05:35:10,806 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-23 05:35:10,806 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-23 05:35:10,806 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 05:35:10,806 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 05:35:10,807 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 05:35:10,807 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 05:35:10,807 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 05:35:10,807 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 05:35:10,807 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 05:35:10,807 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 05:35:10,807 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 05:35:10,808 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 05:35:10,808 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 05:35:10,808 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 05:35:10,808 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-23 05:35:10,808 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 05:35:10,808 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-23 05:35:10,808 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-23 05:35:10,808 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_6c613038-4674-45a9-9dc1-da6c0abfccf0/bin-2019/utaipan 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 -> Taipan 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 -> 0a5777cb7d0bbf0d840893f3aa39606f5237d830 [2018-11-23 05:35:10,839 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 05:35:10,848 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 05:35:10,851 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 05:35:10,852 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 05:35:10,852 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 05:35:10,853 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6c613038-4674-45a9-9dc1-da6c0abfccf0/bin-2019/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float13_true-unreach-call_true-termination.i [2018-11-23 05:35:10,898 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6c613038-4674-45a9-9dc1-da6c0abfccf0/bin-2019/utaipan/data/62210f185/c4a6082537db43ac85725dbb7e2ab841/FLAG3c5b06b59 [2018-11-23 05:35:11,217 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 05:35:11,217 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6c613038-4674-45a9-9dc1-da6c0abfccf0/sv-benchmarks/c/floats-cbmc-regression/float13_true-unreach-call_true-termination.i [2018-11-23 05:35:11,221 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6c613038-4674-45a9-9dc1-da6c0abfccf0/bin-2019/utaipan/data/62210f185/c4a6082537db43ac85725dbb7e2ab841/FLAG3c5b06b59 [2018-11-23 05:35:11,657 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6c613038-4674-45a9-9dc1-da6c0abfccf0/bin-2019/utaipan/data/62210f185/c4a6082537db43ac85725dbb7e2ab841 [2018-11-23 05:35:11,659 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 05:35:11,660 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 05:35:11,661 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 05:35:11,661 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 05:35:11,665 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 05:35:11,665 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:35:11" (1/1) ... [2018-11-23 05:35:11,668 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f089c66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:35:11, skipping insertion in model container [2018-11-23 05:35:11,668 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:35:11" (1/1) ... [2018-11-23 05:35:11,677 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 05:35:11,692 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 05:35:11,803 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 05:35:11,810 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 05:35:11,825 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 05:35:11,837 INFO L195 MainTranslator]: Completed translation [2018-11-23 05:35:11,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:35:11 WrapperNode [2018-11-23 05:35:11,837 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 05:35:11,838 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 05:35:11,838 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 05:35:11,838 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 05:35:11,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:35:11" (1/1) ... [2018-11-23 05:35:11,851 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:35:11" (1/1) ... [2018-11-23 05:35:11,857 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 05:35:11,857 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 05:35:11,857 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 05:35:11,857 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 05:35:11,865 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:35:11" (1/1) ... [2018-11-23 05:35:11,865 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:35:11" (1/1) ... [2018-11-23 05:35:11,866 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:35:11" (1/1) ... [2018-11-23 05:35:11,867 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:35:11" (1/1) ... [2018-11-23 05:35:11,873 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:35:11" (1/1) ... [2018-11-23 05:35:11,874 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:35:11" (1/1) ... [2018-11-23 05:35:11,876 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:35:11" (1/1) ... [2018-11-23 05:35:11,877 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 05:35:11,878 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 05:35:11,878 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 05:35:11,878 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 05:35:11,879 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:35:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6c613038-4674-45a9-9dc1-da6c0abfccf0/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 05:35:11,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 05:35:11,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 05:35:11,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 05:35:11,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 05:35:11,961 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 05:35:11,961 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 05:35:12,111 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 05:35:12,111 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-23 05:35:12,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:35:12 BoogieIcfgContainer [2018-11-23 05:35:12,112 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 05:35:12,112 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 05:35:12,112 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 05:35:12,114 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 05:35:12,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:35:11" (1/3) ... [2018-11-23 05:35:12,115 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d2afa82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:35:12, skipping insertion in model container [2018-11-23 05:35:12,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:35:11" (2/3) ... [2018-11-23 05:35:12,115 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d2afa82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:35:12, skipping insertion in model container [2018-11-23 05:35:12,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:35:12" (3/3) ... [2018-11-23 05:35:12,117 INFO L112 eAbstractionObserver]: Analyzing ICFG float13_true-unreach-call_true-termination.i [2018-11-23 05:35:12,125 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 05:35:12,131 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2018-11-23 05:35:12,144 INFO L257 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2018-11-23 05:35:12,167 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 05:35:12,167 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 05:35:12,167 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 05:35:12,167 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 05:35:12,167 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 05:35:12,168 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 05:35:12,168 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 05:35:12,168 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 05:35:12,168 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 05:35:12,181 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2018-11-23 05:35:12,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-23 05:35:12,185 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 05:35:12,186 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 05:35:12,188 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 05:35:12,191 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:35:12,191 INFO L82 PathProgramCache]: Analyzing trace with hash -1459462506, now seen corresponding path program 1 times [2018-11-23 05:35:12,194 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 05:35:12,194 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6c613038-4674-45a9-9dc1-da6c0abfccf0/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-23 05:35:12,198 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:35:12,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:35:12,235 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 05:35:12,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 05:35:12,282 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 05:35:12,294 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 05:35:12,295 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 05:35:12,298 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 05:35:12,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 05:35:12,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 05:35:12,310 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 4 states. [2018-11-23 05:35:12,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 05:35:12,389 INFO L93 Difference]: Finished difference Result 61 states and 74 transitions. [2018-11-23 05:35:12,390 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 05:35:12,391 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-11-23 05:35:12,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 05:35:12,396 INFO L225 Difference]: With dead ends: 61 [2018-11-23 05:35:12,396 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 05:35:12,398 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 05:35:12,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 05:35:12,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 05:35:12,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 05:35:12,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 05:35:12,416 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2018-11-23 05:35:12,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 05:35:12,416 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 05:35:12,416 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 05:35:12,416 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 05:35:12,417 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 05:35:12,420 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 05:35:12,457 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-23 05:35:12,457 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-23 05:35:12,457 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 05:35:12,458 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 05:35:12,458 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (= (fp.mul roundNearestTiesToEven (_ +zero 8 24) (fp.div roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven 1.0) (_ +zero 8 24))) ~NaN~0) [2018-11-23 05:35:12,458 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 05:35:12,458 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 05:35:12,458 INFO L448 ceAbstractionStarter]: For program point L31(line 31) no Hoare annotation was computed. [2018-11-23 05:35:12,458 INFO L448 ceAbstractionStarter]: For program point L31-1(line 31) no Hoare annotation was computed. [2018-11-23 05:35:12,458 INFO L448 ceAbstractionStarter]: For program point L31-3(line 31) no Hoare annotation was computed. [2018-11-23 05:35:12,458 INFO L448 ceAbstractionStarter]: For program point mainErr4ASSERT_VIOLATIONERROR_FUNCTION(line 25) no Hoare annotation was computed. [2018-11-23 05:35:12,458 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 7 37) no Hoare annotation was computed. [2018-11-23 05:35:12,459 INFO L448 ceAbstractionStarter]: For program point L19(line 19) no Hoare annotation was computed. [2018-11-23 05:35:12,459 INFO L448 ceAbstractionStarter]: For program point L19-1(line 19) no Hoare annotation was computed. [2018-11-23 05:35:12,459 INFO L448 ceAbstractionStarter]: For program point L19-3(line 19) no Hoare annotation was computed. [2018-11-23 05:35:12,459 INFO L448 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2018-11-23 05:35:12,459 INFO L448 ceAbstractionStarter]: For program point mainErr7ASSERT_VIOLATIONERROR_FUNCTION(line 34) no Hoare annotation was computed. [2018-11-23 05:35:12,459 INFO L448 ceAbstractionStarter]: For program point mainErr5ASSERT_VIOLATIONERROR_FUNCTION(line 28) no Hoare annotation was computed. [2018-11-23 05:35:12,459 INFO L448 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2018-11-23 05:35:12,459 INFO L448 ceAbstractionStarter]: For program point L28-1(line 28) no Hoare annotation was computed. [2018-11-23 05:35:12,459 INFO L448 ceAbstractionStarter]: For program point L28-3(line 28) no Hoare annotation was computed. [2018-11-23 05:35:12,460 INFO L448 ceAbstractionStarter]: For program point L16(line 16) no Hoare annotation was computed. [2018-11-23 05:35:12,460 INFO L448 ceAbstractionStarter]: For program point L16-1(line 16) no Hoare annotation was computed. [2018-11-23 05:35:12,460 INFO L448 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2018-11-23 05:35:12,460 INFO L448 ceAbstractionStarter]: For program point L16-3(line 16) no Hoare annotation was computed. [2018-11-23 05:35:12,460 INFO L448 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-11-23 05:35:12,460 INFO L448 ceAbstractionStarter]: For program point L25-1(line 25) no Hoare annotation was computed. [2018-11-23 05:35:12,460 INFO L448 ceAbstractionStarter]: For program point L25-3(line 25) no Hoare annotation was computed. [2018-11-23 05:35:12,460 INFO L448 ceAbstractionStarter]: For program point mainErr6ASSERT_VIOLATIONERROR_FUNCTION(line 31) no Hoare annotation was computed. [2018-11-23 05:35:12,460 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2018-11-23 05:35:12,460 INFO L448 ceAbstractionStarter]: For program point L13(line 13) no Hoare annotation was computed. [2018-11-23 05:35:12,461 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 7 37) no Hoare annotation was computed. [2018-11-23 05:35:12,461 INFO L448 ceAbstractionStarter]: For program point L13-1(line 13) no Hoare annotation was computed. [2018-11-23 05:35:12,461 INFO L448 ceAbstractionStarter]: For program point L13-3(line 13) no Hoare annotation was computed. [2018-11-23 05:35:12,461 INFO L448 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2018-11-23 05:35:12,461 INFO L448 ceAbstractionStarter]: For program point L34-1(line 34) no Hoare annotation was computed. [2018-11-23 05:35:12,461 INFO L448 ceAbstractionStarter]: For program point L34-3(line 34) no Hoare annotation was computed. [2018-11-23 05:35:12,461 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 7 37) the Hoare annotation is: true [2018-11-23 05:35:12,461 INFO L448 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-11-23 05:35:12,461 INFO L448 ceAbstractionStarter]: For program point L22-1(line 22) no Hoare annotation was computed. [2018-11-23 05:35:12,461 INFO L448 ceAbstractionStarter]: For program point L22-3(line 22) no Hoare annotation was computed. [2018-11-23 05:35:12,462 INFO L448 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONERROR_FUNCTION(line 22) no Hoare annotation was computed. [2018-11-23 05:35:12,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 05:35:12 BoogieIcfgContainer [2018-11-23 05:35:12,464 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 05:35:12,465 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 05:35:12,465 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 05:35:12,465 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 05:35:12,466 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:35:12" (3/4) ... [2018-11-23 05:35:12,469 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 05:35:12,474 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 05:35:12,475 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 05:35:12,478 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-23 05:35:12,478 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-23 05:35:12,509 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_6c613038-4674-45a9-9dc1-da6c0abfccf0/bin-2019/utaipan/witness.graphml [2018-11-23 05:35:12,509 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 05:35:12,510 INFO L168 Benchmark]: Toolchain (without parser) took 850.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 948.7 MB in the beginning and 1.1 GB in the end (delta: -114.6 MB). Peak memory consumption was 7.5 MB. Max. memory is 11.5 GB. [2018-11-23 05:35:12,511 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 05:35:12,511 INFO L168 Benchmark]: CACSL2BoogieTranslator took 176.87 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 937.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 05:35:12,511 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.80 ms. Allocated memory is still 1.0 GB. Free memory was 937.9 MB in the beginning and 932.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-23 05:35:12,512 INFO L168 Benchmark]: Boogie Preprocessor took 20.36 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 05:35:12,512 INFO L168 Benchmark]: RCFGBuilder took 234.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 932.6 MB in the beginning and 1.1 GB in the end (delta: -169.0 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. [2018-11-23 05:35:12,512 INFO L168 Benchmark]: TraceAbstraction took 352.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 31.6 MB). Peak memory consumption was 31.6 MB. Max. memory is 11.5 GB. [2018-11-23 05:35:12,512 INFO L168 Benchmark]: Witness Printer took 44.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-23 05:35:12,514 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 176.87 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 937.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.80 ms. Allocated memory is still 1.0 GB. Free memory was 937.9 MB in the beginning and 932.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.36 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 234.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 932.6 MB in the beginning and 1.1 GB in the end (delta: -169.0 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 352.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 31.6 MB). Peak memory consumption was 31.6 MB. Max. memory is 11.5 GB. * Witness Printer took 44.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 16]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 31]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 28]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 13]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 19]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 22]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 25]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 34]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 42 locations, 8 error locations. SAFE Result, 0.3s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 9 SDtfs, 22 SDslu, 8 SDs, 0 SdLazy, 16 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 4 NumberOfFragments, 14 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 23 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 343 SizeOfPredicates, 2 NumberOfNonLiveVariables, 20 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...