./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1381_true-unreach-call.c --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_111ab1b6-95db-4eae-b4ff-7b2b46b1667c/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_111ab1b6-95db-4eae-b4ff-7b2b46b1667c/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_111ab1b6-95db-4eae-b4ff-7b2b46b1667c/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_111ab1b6-95db-4eae-b4ff-7b2b46b1667c/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1381_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_111ab1b6-95db-4eae-b4ff-7b2b46b1667c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_111ab1b6-95db-4eae-b4ff-7b2b46b1667c/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 c91754c7d707a58127a2dc4a18babac51d557647 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_111ab1b6-95db-4eae-b4ff-7b2b46b1667c/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_111ab1b6-95db-4eae-b4ff-7b2b46b1667c/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_111ab1b6-95db-4eae-b4ff-7b2b46b1667c/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_111ab1b6-95db-4eae-b4ff-7b2b46b1667c/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1381_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_111ab1b6-95db-4eae-b4ff-7b2b46b1667c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_111ab1b6-95db-4eae-b4ff-7b2b46b1667c/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 c91754c7d707a58127a2dc4a18babac51d557647 ...................................................................................................................................................................................................................................................................................................................................................... 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 02:50:40,889 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 02:50:40,890 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 02:50:40,896 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 02:50:40,896 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 02:50:40,897 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 02:50:40,898 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 02:50:40,899 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 02:50:40,900 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 02:50:40,901 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 02:50:40,901 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 02:50:40,902 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 02:50:40,902 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 02:50:40,903 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 02:50:40,903 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 02:50:40,904 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 02:50:40,904 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 02:50:40,906 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 02:50:40,907 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 02:50:40,908 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 02:50:40,908 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 02:50:40,909 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 02:50:40,910 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 02:50:40,910 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 02:50:40,910 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 02:50:40,911 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 02:50:40,911 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 02:50:40,911 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 02:50:40,912 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 02:50:40,913 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 02:50:40,913 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 02:50:40,913 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 02:50:40,914 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 02:50:40,914 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 02:50:40,914 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 02:50:40,915 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 02:50:40,915 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_111ab1b6-95db-4eae-b4ff-7b2b46b1667c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-23 02:50:40,922 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 02:50:40,922 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 02:50:40,923 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 02:50:40,923 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 02:50:40,923 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 02:50:40,923 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 02:50:40,923 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 02:50:40,923 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 02:50:40,923 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 02:50:40,923 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 02:50:40,924 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 02:50:40,924 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 02:50:40,924 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 02:50:40,924 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 02:50:40,924 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 02:50:40,925 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 02:50:40,925 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 02:50:40,925 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 02:50:40,925 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 02:50:40,925 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 02:50:40,925 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 02:50:40,925 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 02:50:40,925 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 02:50:40,926 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 02:50:40,926 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 02:50:40,926 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 02:50:40,926 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 02:50:40,926 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 02:50:40,926 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 02:50:40,926 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 02:50:40,926 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 02:50:40,926 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 02:50:40,926 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 02:50:40,927 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 02:50:40,927 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 02:50:40,927 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 02:50:40,927 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 02:50:40,927 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_111ab1b6-95db-4eae-b4ff-7b2b46b1667c/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 -> c91754c7d707a58127a2dc4a18babac51d557647 [2018-11-23 02:50:40,952 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 02:50:40,961 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 02:50:40,962 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 02:50:40,963 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 02:50:40,963 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 02:50:40,964 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_111ab1b6-95db-4eae-b4ff-7b2b46b1667c/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1381_true-unreach-call.c [2018-11-23 02:50:40,996 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_111ab1b6-95db-4eae-b4ff-7b2b46b1667c/bin-2019/utaipan/data/5265ab998/cea5f5f05eaf407596346a015f7dc647/FLAGbad3dd1ba [2018-11-23 02:50:41,389 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 02:50:41,389 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_111ab1b6-95db-4eae-b4ff-7b2b46b1667c/sv-benchmarks/c/float-newlib/float_req_bl_1381_true-unreach-call.c [2018-11-23 02:50:41,393 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_111ab1b6-95db-4eae-b4ff-7b2b46b1667c/bin-2019/utaipan/data/5265ab998/cea5f5f05eaf407596346a015f7dc647/FLAGbad3dd1ba [2018-11-23 02:50:41,403 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_111ab1b6-95db-4eae-b4ff-7b2b46b1667c/bin-2019/utaipan/data/5265ab998/cea5f5f05eaf407596346a015f7dc647 [2018-11-23 02:50:41,405 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 02:50:41,406 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 02:50:41,407 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 02:50:41,407 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 02:50:41,409 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 02:50:41,409 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:50:41" (1/1) ... [2018-11-23 02:50:41,411 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d18219d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:41, skipping insertion in model container [2018-11-23 02:50:41,411 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:50:41" (1/1) ... [2018-11-23 02:50:41,417 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 02:50:41,429 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 02:50:41,541 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 02:50:41,543 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 02:50:41,555 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 02:50:41,568 INFO L195 MainTranslator]: Completed translation [2018-11-23 02:50:41,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:41 WrapperNode [2018-11-23 02:50:41,568 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 02:50:41,569 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 02:50:41,569 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 02:50:41,569 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 02:50:41,576 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:41" (1/1) ... [2018-11-23 02:50:41,584 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:41" (1/1) ... [2018-11-23 02:50:41,590 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 02:50:41,590 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 02:50:41,591 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 02:50:41,591 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 02:50:41,641 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:41" (1/1) ... [2018-11-23 02:50:41,641 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:41" (1/1) ... [2018-11-23 02:50:41,643 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:41" (1/1) ... [2018-11-23 02:50:41,643 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:41" (1/1) ... [2018-11-23 02:50:41,652 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:41" (1/1) ... [2018-11-23 02:50:41,658 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:41" (1/1) ... [2018-11-23 02:50:41,659 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:41" (1/1) ... [2018-11-23 02:50:41,661 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 02:50:41,661 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 02:50:41,661 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 02:50:41,662 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 02:50:41,662 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_111ab1b6-95db-4eae-b4ff-7b2b46b1667c/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 02:50:41,703 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_float [2018-11-23 02:50:41,704 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_float [2018-11-23 02:50:41,704 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 02:50:41,704 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 02:50:41,704 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-23 02:50:41,704 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-23 02:50:41,704 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-23 02:50:41,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 02:50:41,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 02:50:41,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 02:50:41,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-23 02:50:41,704 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 02:50:41,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 02:50:41,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 02:50:41,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-23 02:50:41,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 02:50:41,884 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 02:50:41,884 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-23 02:50:41,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:50:41 BoogieIcfgContainer [2018-11-23 02:50:41,885 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 02:50:41,885 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 02:50:41,885 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 02:50:41,888 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 02:50:41,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:50:41" (1/3) ... [2018-11-23 02:50:41,889 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f2e6ef4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:50:41, skipping insertion in model container [2018-11-23 02:50:41,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:41" (2/3) ... [2018-11-23 02:50:41,889 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f2e6ef4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:50:41, skipping insertion in model container [2018-11-23 02:50:41,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:50:41" (3/3) ... [2018-11-23 02:50:41,891 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1381_true-unreach-call.c [2018-11-23 02:50:41,900 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 02:50:41,906 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 02:50:41,922 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 02:50:41,948 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 02:50:41,949 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 02:50:41,949 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 02:50:41,949 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 02:50:41,949 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 02:50:41,949 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 02:50:41,949 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 02:50:41,949 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 02:50:41,964 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2018-11-23 02:50:41,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-23 02:50:41,969 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 02:50:41,969 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 02:50:41,971 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 02:50:41,974 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:50:41,975 INFO L82 PathProgramCache]: Analyzing trace with hash 961824128, now seen corresponding path program 1 times [2018-11-23 02:50:41,976 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 02:50:42,012 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:50:42,012 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:50:42,013 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:50:42,013 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 02:50:42,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:50:42,067 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 02:50:42,068 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 02:50:42,069 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 02:50:42,069 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 02:50:42,072 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-23 02:50:42,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-23 02:50:42,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 02:50:42,081 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 2 states. [2018-11-23 02:50:42,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 02:50:42,095 INFO L93 Difference]: Finished difference Result 52 states and 64 transitions. [2018-11-23 02:50:42,095 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-23 02:50:42,096 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-11-23 02:50:42,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 02:50:42,101 INFO L225 Difference]: With dead ends: 52 [2018-11-23 02:50:42,101 INFO L226 Difference]: Without dead ends: 26 [2018-11-23 02:50:42,103 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 02:50:42,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-11-23 02:50:42,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2018-11-23 02:50:42,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-11-23 02:50:42,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 25 transitions. [2018-11-23 02:50:42,125 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 25 transitions. Word has length 22 [2018-11-23 02:50:42,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 02:50:42,125 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 25 transitions. [2018-11-23 02:50:42,125 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-23 02:50:42,126 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 25 transitions. [2018-11-23 02:50:42,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-23 02:50:42,126 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 02:50:42,126 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 02:50:42,127 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 02:50:42,127 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:50:42,127 INFO L82 PathProgramCache]: Analyzing trace with hash 1472779928, now seen corresponding path program 1 times [2018-11-23 02:50:42,127 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 02:50:42,128 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:50:42,128 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:50:42,128 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:50:42,128 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 02:50:42,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 02:50:42,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 02:50:42,198 INFO L469 BasicCegarLoop]: Counterexample might be feasible ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] CALL call ULTIMATE.init(); VAL [|#NULL.base|=11, |#NULL.offset|=5, |old(#NULL.base)|=11, |old(#NULL.offset)|=5] [?] #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; VAL [|#NULL.base|=0, |#NULL.offset|=0, |old(#NULL.base)|=11, |old(#NULL.offset)|=5] [?] assume true; VAL [|#NULL.base|=0, |#NULL.offset|=0, |old(#NULL.base)|=11, |old(#NULL.offset)|=5] [?] RET #57#return; VAL [|#NULL.base|=0, |#NULL.offset|=0] [?] CALL call #t~ret9 := main(); VAL [|#NULL.base|=0, |#NULL.offset|=0] [?] ~x~0 := ~someBinaryArithmeticFLOAToperation(0.0, 0.0);~y~0 := #t~nondet6;havoc #t~nondet6; VAL [main_~y~0=14.0, |#NULL.base|=0, |#NULL.offset|=0] [?] CALL call #t~ret7 := copysign_float(~x~0, ~y~0); VAL [|#NULL.base|=0, |#NULL.offset|=0, |copysign_float_#in~x|=15.0, |copysign_float_#in~y|=14.0] [?] ~x := #in~x;~y := #in~y;havoc ~ix~0;havoc ~iy~0; VAL [copysign_float_~x=15.0, copysign_float_~y=14.0, |#NULL.base|=0, |#NULL.offset|=0, |copysign_float_#in~x|=15.0, |copysign_float_#in~y|=14.0] [?] call ~#gf_u~0.base, ~#gf_u~0.offset := #Ultimate.alloc(4);call write~real(~x, ~#gf_u~0.base, ~#gf_u~0.offset, 4);call #t~mem0 := read~int(~#gf_u~0.base, ~#gf_u~0.offset, 4);~ix~0 := #t~mem0;call write~real(#t~union1, ~#gf_u~0.base, ~#gf_u~0.offset, 4);havoc #t~mem0;havoc #t~union1;call ULTIMATE.dealloc(~#gf_u~0.base, ~#gf_u~0.offset);havoc ~#gf_u~0.base, ~#gf_u~0.offset; VAL [copysign_float_~ix~0=16, copysign_float_~x=15.0, copysign_float_~y=14.0, |#NULL.base|=0, |#NULL.offset|=0, |copysign_float_#in~x|=15.0, |copysign_float_#in~y|=14.0] [?] goto; VAL [copysign_float_~ix~0=16, copysign_float_~x=15.0, copysign_float_~y=14.0, |#NULL.base|=0, |#NULL.offset|=0, |copysign_float_#in~x|=15.0, |copysign_float_#in~y|=14.0] [?] call ~#gf_u~1.base, ~#gf_u~1.offset := #Ultimate.alloc(4);call write~real(~y, ~#gf_u~1.base, ~#gf_u~1.offset, 4);call #t~mem2 := read~int(~#gf_u~1.base, ~#gf_u~1.offset, 4);~iy~0 := #t~mem2;call write~real(#t~union3, ~#gf_u~1.base, ~#gf_u~1.offset, 4);havoc #t~union3;havoc #t~mem2;call ULTIMATE.dealloc(~#gf_u~1.base, ~#gf_u~1.offset);havoc ~#gf_u~1.base, ~#gf_u~1.offset; VAL [copysign_float_~ix~0=16, copysign_float_~iy~0=20, copysign_float_~x=15.0, copysign_float_~y=14.0, |#NULL.base|=0, |#NULL.offset|=0, |copysign_float_#in~x|=15.0, |copysign_float_#in~y|=14.0] [?] goto; VAL [copysign_float_~ix~0=16, copysign_float_~iy~0=20, copysign_float_~x=15.0, copysign_float_~y=14.0, |#NULL.base|=0, |#NULL.offset|=0, |copysign_float_#in~x|=15.0, |copysign_float_#in~y|=14.0] [?] call ~#sf_u~0.base, ~#sf_u~0.offset := #Ultimate.alloc(4);call write~int(~bitwiseOr(~bitwiseAnd(~ix~0, 2147483647), ~bitwiseAnd(~iy~0, 2147483648)), ~#sf_u~0.base, ~#sf_u~0.offset, 4);call #t~mem4 := read~real(~#sf_u~0.base, ~#sf_u~0.offset, 4);~x := #t~mem4;call write~int(#t~union5, ~#sf_u~0.base, ~#sf_u~0.offset, 4);havoc #t~mem4;havoc #t~union5;call ULTIMATE.dealloc(~#sf_u~0.base, ~#sf_u~0.offset);havoc ~#sf_u~0.base, ~#sf_u~0.offset; VAL [copysign_float_~ix~0=16, copysign_float_~iy~0=20, copysign_float_~x=10.0, copysign_float_~y=14.0, |#NULL.base|=0, |#NULL.offset|=0, |copysign_float_#in~x|=15.0, |copysign_float_#in~y|=14.0] [?] goto; VAL [copysign_float_~ix~0=16, copysign_float_~iy~0=20, copysign_float_~x=10.0, copysign_float_~y=14.0, |#NULL.base|=0, |#NULL.offset|=0, |copysign_float_#in~x|=15.0, |copysign_float_#in~y|=14.0] [?] #res := ~x; VAL [copysign_float_~ix~0=16, copysign_float_~iy~0=20, copysign_float_~x=10.0, copysign_float_~y=14.0, |#NULL.base|=0, |#NULL.offset|=0, |copysign_float_#in~x|=15.0, |copysign_float_#in~y|=14.0, |copysign_float_#res|=10.0] [?] assume true; VAL [copysign_float_~ix~0=16, copysign_float_~iy~0=20, copysign_float_~x=10.0, copysign_float_~y=14.0, |#NULL.base|=0, |#NULL.offset|=0, |copysign_float_#in~x|=15.0, |copysign_float_#in~y|=14.0, |copysign_float_#res|=10.0] [?] RET #61#return; VAL [main_~x~0=15.0, main_~y~0=14.0, |#NULL.base|=0, |#NULL.offset|=0, |main_#t~ret7|=10.0] [?] ~res~0 := #t~ret7;havoc #t~ret7; VAL [main_~res~0=10.0, main_~x~0=15.0, main_~y~0=14.0, |#NULL.base|=0, |#NULL.offset|=0] [?] CALL call #t~ret8 := isnan_float(~res~0); VAL [|#NULL.base|=0, |#NULL.offset|=0, |isnan_float_#in~x|=10.0] [?] ~x := #in~x;#res := (if ~someBinaryFLOATComparisonOperation(~x, ~x) then 1 else 0); VAL [isnan_float_~x=10.0, |#NULL.base|=0, |#NULL.offset|=0, |isnan_float_#in~x|=10.0, |isnan_float_#res|=0] [?] assume true; VAL [isnan_float_~x=10.0, |#NULL.base|=0, |#NULL.offset|=0, |isnan_float_#in~x|=10.0, |isnan_float_#res|=0] [?] RET #63#return; VAL [main_~res~0=10.0, main_~x~0=15.0, main_~y~0=14.0, |#NULL.base|=0, |#NULL.offset|=0, |main_#t~ret8|=0] [?] assume -2147483648 <= #t~ret8 && #t~ret8 <= 2147483647; VAL [main_~res~0=10.0, main_~x~0=15.0, main_~y~0=14.0, |#NULL.base|=0, |#NULL.offset|=0, |main_#t~ret8|=0] [?] assume 0 == #t~ret8;havoc #t~ret8; VAL [main_~res~0=10.0, main_~x~0=15.0, main_~y~0=14.0, |#NULL.base|=0, |#NULL.offset|=0] [?] assume !false; VAL [main_~res~0=10.0, main_~x~0=15.0, main_~y~0=14.0, |#NULL.base|=0, |#NULL.offset|=0] [?] CALL call ULTIMATE.init(); VAL [#NULL.base=11, #NULL.offset=5, old(#NULL.base)=11, old(#NULL.offset)=5] [?] #NULL.base, #NULL.offset := 0, 0; [?] #valid := #valid[0 := 0]; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=11, old(#NULL.offset)=5] [?] ensures true; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=11, old(#NULL.offset)=5] [?] RET call ULTIMATE.init(); VAL [#NULL.base=0, #NULL.offset=0] [?] CALL call #t~ret9 := main(); VAL [#NULL.base=0, #NULL.offset=0] [L43] ~x~0 := ~someBinaryArithmeticFLOAToperation(0.0, 0.0); [L44] ~y~0 := #t~nondet6; [L44] havoc #t~nondet6; VAL [#NULL.base=0, #NULL.offset=0, ~y~0=14.0] [L45] CALL call #t~ret7 := copysign_float(~x~0, ~y~0); VAL [#in~x=15.0, #in~y=14.0, #NULL.base=0, #NULL.offset=0] [L12-L30] ~x := #in~x; [L12-L30] ~y := #in~y; [L13] havoc ~ix~0; [L13] havoc ~iy~0; VAL [#in~x=15.0, #in~y=14.0, #NULL.base=0, #NULL.offset=0, ~x=15.0, ~y=14.0] [L15] call ~#gf_u~0.base, ~#gf_u~0.offset := #Ultimate.alloc(4); [L16] call write~real(~x, ~#gf_u~0.base, ~#gf_u~0.offset, 4); [L17] call #t~mem0 := read~int(~#gf_u~0.base, ~#gf_u~0.offset, 4); [L17] ~ix~0 := #t~mem0; [L17] call write~real(#t~union1, ~#gf_u~0.base, ~#gf_u~0.offset, 4); [L17] havoc #t~mem0; [L17] havoc #t~union1; [L15] call ULTIMATE.dealloc(~#gf_u~0.base, ~#gf_u~0.offset); [L15] havoc ~#gf_u~0.base, ~#gf_u~0.offset; VAL [#in~x=15.0, #in~y=14.0, #NULL.base=0, #NULL.offset=0, ~ix~0=16, ~x=15.0, ~y=14.0] [L20] call ~#gf_u~1.base, ~#gf_u~1.offset := #Ultimate.alloc(4); [L21] call write~real(~y, ~#gf_u~1.base, ~#gf_u~1.offset, 4); [L22] call #t~mem2 := read~int(~#gf_u~1.base, ~#gf_u~1.offset, 4); [L22] ~iy~0 := #t~mem2; [L22] call write~real(#t~union3, ~#gf_u~1.base, ~#gf_u~1.offset, 4); [L22] havoc #t~union3; [L22] havoc #t~mem2; [L20] call ULTIMATE.dealloc(~#gf_u~1.base, ~#gf_u~1.offset); [L20] havoc ~#gf_u~1.base, ~#gf_u~1.offset; VAL [#in~x=15.0, #in~y=14.0, #NULL.base=0, #NULL.offset=0, ~ix~0=16, ~iy~0=20, ~x=15.0, ~y=14.0] [L25] call ~#sf_u~0.base, ~#sf_u~0.offset := #Ultimate.alloc(4); [L26] call write~int(~bitwiseOr(~bitwiseAnd(~ix~0, 2147483647), ~bitwiseAnd(~iy~0, 2147483648)), ~#sf_u~0.base, ~#sf_u~0.offset, 4); [L27] call #t~mem4 := read~real(~#sf_u~0.base, ~#sf_u~0.offset, 4); [L27] ~x := #t~mem4; [L27] call write~int(#t~union5, ~#sf_u~0.base, ~#sf_u~0.offset, 4); [L27] havoc #t~mem4; [L27] havoc #t~union5; [L25] call ULTIMATE.dealloc(~#sf_u~0.base, ~#sf_u~0.offset); [L25] havoc ~#sf_u~0.base, ~#sf_u~0.offset; VAL [#in~x=15.0, #in~y=14.0, #NULL.base=0, #NULL.offset=0, ~ix~0=16, ~iy~0=20, ~x=10.0, ~y=14.0] [L29] #res := ~x; VAL [#in~x=15.0, #in~y=14.0, #NULL.base=0, #NULL.offset=0, #res=10.0, ~ix~0=16, ~iy~0=20, ~x=10.0, ~y=14.0] [L12-L30] ensures true; VAL [#in~x=15.0, #in~y=14.0, #NULL.base=0, #NULL.offset=0, #res=10.0, ~ix~0=16, ~iy~0=20, ~x=10.0, ~y=14.0] [L45] RET call #t~ret7 := copysign_float(~x~0, ~y~0); VAL [#NULL.base=0, #NULL.offset=0, #t~ret7=10.0, ~x~0=15.0, ~y~0=14.0] [L45] ~res~0 := #t~ret7; [L45] havoc #t~ret7; VAL [#NULL.base=0, #NULL.offset=0, ~res~0=10.0, ~x~0=15.0, ~y~0=14.0] [L48] CALL call #t~ret8 := isnan_float(~res~0); VAL [#in~x=10.0, #NULL.base=0, #NULL.offset=0] [L33] ~x := #in~x; [L33] #res := (if ~someBinaryFLOATComparisonOperation(~x, ~x) then 1 else 0); VAL [#in~x=10.0, #NULL.base=0, #NULL.offset=0, #res=0, ~x=10.0] [L33] ensures true; VAL [#in~x=10.0, #NULL.base=0, #NULL.offset=0, #res=0, ~x=10.0] [L48] RET call #t~ret8 := isnan_float(~res~0); VAL [#NULL.base=0, #NULL.offset=0, #t~ret8=0, ~res~0=10.0, ~x~0=15.0, ~y~0=14.0] [L48] assume -2147483648 <= #t~ret8 && #t~ret8 <= 2147483647; VAL [#NULL.base=0, #NULL.offset=0, #t~ret8=0, ~res~0=10.0, ~x~0=15.0, ~y~0=14.0] [L48-L51] assume 0 == #t~ret8; [L48] havoc #t~ret8; VAL [#NULL.base=0, #NULL.offset=0, ~res~0=10.0, ~x~0=15.0, ~y~0=14.0] [L49] assert false; VAL [#NULL.base=0, #NULL.offset=0, ~res~0=10.0, ~x~0=15.0, ~y~0=14.0] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] CALL call ULTIMATE.init(); VAL [#NULL.base=11, #NULL.offset=5, old(#NULL.base)=11, old(#NULL.offset)=5] [?] #NULL.base, #NULL.offset := 0, 0; [?] #valid := #valid[0 := 0]; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=11, old(#NULL.offset)=5] [?] ensures true; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=11, old(#NULL.offset)=5] [?] RET call ULTIMATE.init(); VAL [#NULL.base=0, #NULL.offset=0] [?] CALL call #t~ret9 := main(); VAL [#NULL.base=0, #NULL.offset=0] [L43] ~x~0 := ~someBinaryArithmeticFLOAToperation(0.0, 0.0); [L44] ~y~0 := #t~nondet6; [L44] havoc #t~nondet6; VAL [#NULL.base=0, #NULL.offset=0, ~y~0=14.0] [L45] CALL call #t~ret7 := copysign_float(~x~0, ~y~0); VAL [#in~x=15.0, #in~y=14.0, #NULL.base=0, #NULL.offset=0] [L12-L30] ~x := #in~x; [L12-L30] ~y := #in~y; [L13] havoc ~ix~0; [L13] havoc ~iy~0; VAL [#in~x=15.0, #in~y=14.0, #NULL.base=0, #NULL.offset=0, ~x=15.0, ~y=14.0] [L15] call ~#gf_u~0.base, ~#gf_u~0.offset := #Ultimate.alloc(4); [L16] call write~real(~x, ~#gf_u~0.base, ~#gf_u~0.offset, 4); [L17] call #t~mem0 := read~int(~#gf_u~0.base, ~#gf_u~0.offset, 4); [L17] ~ix~0 := #t~mem0; [L17] call write~real(#t~union1, ~#gf_u~0.base, ~#gf_u~0.offset, 4); [L17] havoc #t~mem0; [L17] havoc #t~union1; [L15] call ULTIMATE.dealloc(~#gf_u~0.base, ~#gf_u~0.offset); [L15] havoc ~#gf_u~0.base, ~#gf_u~0.offset; VAL [#in~x=15.0, #in~y=14.0, #NULL.base=0, #NULL.offset=0, ~ix~0=16, ~x=15.0, ~y=14.0] [L20] call ~#gf_u~1.base, ~#gf_u~1.offset := #Ultimate.alloc(4); [L21] call write~real(~y, ~#gf_u~1.base, ~#gf_u~1.offset, 4); [L22] call #t~mem2 := read~int(~#gf_u~1.base, ~#gf_u~1.offset, 4); [L22] ~iy~0 := #t~mem2; [L22] call write~real(#t~union3, ~#gf_u~1.base, ~#gf_u~1.offset, 4); [L22] havoc #t~union3; [L22] havoc #t~mem2; [L20] call ULTIMATE.dealloc(~#gf_u~1.base, ~#gf_u~1.offset); [L20] havoc ~#gf_u~1.base, ~#gf_u~1.offset; VAL [#in~x=15.0, #in~y=14.0, #NULL.base=0, #NULL.offset=0, ~ix~0=16, ~iy~0=20, ~x=15.0, ~y=14.0] [L25] call ~#sf_u~0.base, ~#sf_u~0.offset := #Ultimate.alloc(4); [L26] call write~int(~bitwiseOr(~bitwiseAnd(~ix~0, 2147483647), ~bitwiseAnd(~iy~0, 2147483648)), ~#sf_u~0.base, ~#sf_u~0.offset, 4); [L27] call #t~mem4 := read~real(~#sf_u~0.base, ~#sf_u~0.offset, 4); [L27] ~x := #t~mem4; [L27] call write~int(#t~union5, ~#sf_u~0.base, ~#sf_u~0.offset, 4); [L27] havoc #t~mem4; [L27] havoc #t~union5; [L25] call ULTIMATE.dealloc(~#sf_u~0.base, ~#sf_u~0.offset); [L25] havoc ~#sf_u~0.base, ~#sf_u~0.offset; VAL [#in~x=15.0, #in~y=14.0, #NULL.base=0, #NULL.offset=0, ~ix~0=16, ~iy~0=20, ~x=10.0, ~y=14.0] [L29] #res := ~x; VAL [#in~x=15.0, #in~y=14.0, #NULL.base=0, #NULL.offset=0, #res=10.0, ~ix~0=16, ~iy~0=20, ~x=10.0, ~y=14.0] [L12-L30] ensures true; VAL [#in~x=15.0, #in~y=14.0, #NULL.base=0, #NULL.offset=0, #res=10.0, ~ix~0=16, ~iy~0=20, ~x=10.0, ~y=14.0] [L45] RET call #t~ret7 := copysign_float(~x~0, ~y~0); VAL [#NULL.base=0, #NULL.offset=0, #t~ret7=10.0, ~x~0=15.0, ~y~0=14.0] [L45] ~res~0 := #t~ret7; [L45] havoc #t~ret7; VAL [#NULL.base=0, #NULL.offset=0, ~res~0=10.0, ~x~0=15.0, ~y~0=14.0] [L48] CALL call #t~ret8 := isnan_float(~res~0); VAL [#in~x=10.0, #NULL.base=0, #NULL.offset=0] [L33] ~x := #in~x; [L33] #res := (if ~someBinaryFLOATComparisonOperation(~x, ~x) then 1 else 0); VAL [#in~x=10.0, #NULL.base=0, #NULL.offset=0, #res=0, ~x=10.0] [L33] ensures true; VAL [#in~x=10.0, #NULL.base=0, #NULL.offset=0, #res=0, ~x=10.0] [L48] RET call #t~ret8 := isnan_float(~res~0); VAL [#NULL.base=0, #NULL.offset=0, #t~ret8=0, ~res~0=10.0, ~x~0=15.0, ~y~0=14.0] [L48] assume -2147483648 <= #t~ret8 && #t~ret8 <= 2147483647; VAL [#NULL.base=0, #NULL.offset=0, #t~ret8=0, ~res~0=10.0, ~x~0=15.0, ~y~0=14.0] [L48-L51] assume 0 == #t~ret8; [L48] havoc #t~ret8; VAL [#NULL.base=0, #NULL.offset=0, ~res~0=10.0, ~x~0=15.0, ~y~0=14.0] [L49] assert false; VAL [#NULL.base=0, #NULL.offset=0, ~res~0=10.0, ~x~0=15.0, ~y~0=14.0] [?] CALL call ULTIMATE.init(); VAL [#NULL!base=11, #NULL!offset=5, old(#NULL!base)=11, old(#NULL!offset)=5] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; VAL [#NULL!base=0, #NULL!offset=0, old(#NULL!base)=11, old(#NULL!offset)=5] [?] RET call ULTIMATE.init(); VAL [#NULL!base=0, #NULL!offset=0] [?] CALL call #t~ret9 := main(); VAL [#NULL!base=0, #NULL!offset=0] [L43] ~x~0 := ~someBinaryArithmeticFLOAToperation(0.0, 0.0); [L44] ~y~0 := #t~nondet6; [L44] havoc #t~nondet6; VAL [#NULL!base=0, #NULL!offset=0, ~y~0=14.0] [L45] CALL call #t~ret7 := copysign_float(~x~0, ~y~0); VAL [#in~x=15.0, #in~y=14.0, #NULL!base=0, #NULL!offset=0] [L12-L30] ~x := #in~x; [L12-L30] ~y := #in~y; [L13] havoc ~ix~0; [L13] havoc ~iy~0; VAL [#in~x=15.0, #in~y=14.0, #NULL!base=0, #NULL!offset=0, ~x=15.0, ~y=14.0] [L15] FCALL call ~#gf_u~0 := #Ultimate.alloc(4); [L16] FCALL call write~real(~x, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L17] FCALL call #t~mem0 := read~int({ base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L17] ~ix~0 := #t~mem0; [L17] FCALL call write~real(#t~union1, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L17] havoc #t~mem0; [L17] havoc #t~union1; [L15] FCALL call ULTIMATE.dealloc(~#gf_u~0); [L15] havoc ~#gf_u~0; VAL [#in~x=15.0, #in~y=14.0, #NULL!base=0, #NULL!offset=0, ~ix~0=16, ~x=15.0, ~y=14.0] [L20] FCALL call ~#gf_u~1 := #Ultimate.alloc(4); [L21] FCALL call write~real(~y, { base: ~#gf_u~1!base, offset: ~#gf_u~1!offset }, 4); [L22] FCALL call #t~mem2 := read~int({ base: ~#gf_u~1!base, offset: ~#gf_u~1!offset }, 4); [L22] ~iy~0 := #t~mem2; [L22] FCALL call write~real(#t~union3, { base: ~#gf_u~1!base, offset: ~#gf_u~1!offset }, 4); [L22] havoc #t~union3; [L22] havoc #t~mem2; [L20] FCALL call ULTIMATE.dealloc(~#gf_u~1); [L20] havoc ~#gf_u~1; VAL [#in~x=15.0, #in~y=14.0, #NULL!base=0, #NULL!offset=0, ~ix~0=16, ~iy~0=20, ~x=15.0, ~y=14.0] [L25] FCALL call ~#sf_u~0 := #Ultimate.alloc(4); [L26] FCALL call write~int(~bitwiseOr(~bitwiseAnd(~ix~0, 2147483647), ~bitwiseAnd(~iy~0, 2147483648)), { base: ~#sf_u~0!base, offset: ~#sf_u~0!offset }, 4); [L27] FCALL call #t~mem4 := read~real({ base: ~#sf_u~0!base, offset: ~#sf_u~0!offset }, 4); [L27] ~x := #t~mem4; [L27] FCALL call write~int(#t~union5, { base: ~#sf_u~0!base, offset: ~#sf_u~0!offset }, 4); [L27] havoc #t~mem4; [L27] havoc #t~union5; [L25] FCALL call ULTIMATE.dealloc(~#sf_u~0); [L25] havoc ~#sf_u~0; VAL [#in~x=15.0, #in~y=14.0, #NULL!base=0, #NULL!offset=0, ~ix~0=16, ~iy~0=20, ~x=10.0, ~y=14.0] [L29] #res := ~x; VAL [#in~x=15.0, #in~y=14.0, #NULL!base=0, #NULL!offset=0, #res=10.0, ~ix~0=16, ~iy~0=20, ~x=10.0, ~y=14.0] [L45] RET call #t~ret7 := copysign_float(~x~0, ~y~0); VAL [#NULL!base=0, #NULL!offset=0, #t~ret7=10.0, ~x~0=15.0, ~y~0=14.0] [L45] ~res~0 := #t~ret7; [L45] havoc #t~ret7; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=10.0, ~x~0=15.0, ~y~0=14.0] [L48] CALL call #t~ret8 := isnan_float(~res~0); VAL [#in~x=10.0, #NULL!base=0, #NULL!offset=0] [L33] ~x := #in~x; [L33] #res := (if ~someBinaryFLOATComparisonOperation(~x, ~x) then 1 else 0); VAL [#in~x=10.0, #NULL!base=0, #NULL!offset=0, #res=0, ~x=10.0] [L48] RET call #t~ret8 := isnan_float(~res~0); VAL [#NULL!base=0, #NULL!offset=0, #t~ret8=0, ~res~0=10.0, ~x~0=15.0, ~y~0=14.0] [L48] assume -2147483648 <= #t~ret8 && #t~ret8 <= 2147483647; VAL [#NULL!base=0, #NULL!offset=0, #t~ret8=0, ~res~0=10.0, ~x~0=15.0, ~y~0=14.0] [L48] COND TRUE 0 == #t~ret8 [L48] havoc #t~ret8; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=10.0, ~x~0=15.0, ~y~0=14.0] [L49] assert false; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=10.0, ~x~0=15.0, ~y~0=14.0] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [?] CALL call ULTIMATE.init(); VAL [#NULL!base=11, #NULL!offset=5, old(#NULL!base)=11, old(#NULL!offset)=5] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; VAL [#NULL!base=0, #NULL!offset=0, old(#NULL!base)=11, old(#NULL!offset)=5] [?] RET call ULTIMATE.init(); VAL [#NULL!base=0, #NULL!offset=0] [?] CALL call #t~ret9 := main(); VAL [#NULL!base=0, #NULL!offset=0] [L43] ~x~0 := ~someBinaryArithmeticFLOAToperation(0.0, 0.0); [L44] ~y~0 := #t~nondet6; [L44] havoc #t~nondet6; VAL [#NULL!base=0, #NULL!offset=0, ~y~0=14.0] [L45] CALL call #t~ret7 := copysign_float(~x~0, ~y~0); VAL [#in~x=15.0, #in~y=14.0, #NULL!base=0, #NULL!offset=0] [L12-L30] ~x := #in~x; [L12-L30] ~y := #in~y; [L13] havoc ~ix~0; [L13] havoc ~iy~0; VAL [#in~x=15.0, #in~y=14.0, #NULL!base=0, #NULL!offset=0, ~x=15.0, ~y=14.0] [L15] FCALL call ~#gf_u~0 := #Ultimate.alloc(4); [L16] FCALL call write~real(~x, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L17] FCALL call #t~mem0 := read~int({ base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L17] ~ix~0 := #t~mem0; [L17] FCALL call write~real(#t~union1, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L17] havoc #t~mem0; [L17] havoc #t~union1; [L15] FCALL call ULTIMATE.dealloc(~#gf_u~0); [L15] havoc ~#gf_u~0; VAL [#in~x=15.0, #in~y=14.0, #NULL!base=0, #NULL!offset=0, ~ix~0=16, ~x=15.0, ~y=14.0] [L20] FCALL call ~#gf_u~1 := #Ultimate.alloc(4); [L21] FCALL call write~real(~y, { base: ~#gf_u~1!base, offset: ~#gf_u~1!offset }, 4); [L22] FCALL call #t~mem2 := read~int({ base: ~#gf_u~1!base, offset: ~#gf_u~1!offset }, 4); [L22] ~iy~0 := #t~mem2; [L22] FCALL call write~real(#t~union3, { base: ~#gf_u~1!base, offset: ~#gf_u~1!offset }, 4); [L22] havoc #t~union3; [L22] havoc #t~mem2; [L20] FCALL call ULTIMATE.dealloc(~#gf_u~1); [L20] havoc ~#gf_u~1; VAL [#in~x=15.0, #in~y=14.0, #NULL!base=0, #NULL!offset=0, ~ix~0=16, ~iy~0=20, ~x=15.0, ~y=14.0] [L25] FCALL call ~#sf_u~0 := #Ultimate.alloc(4); [L26] FCALL call write~int(~bitwiseOr(~bitwiseAnd(~ix~0, 2147483647), ~bitwiseAnd(~iy~0, 2147483648)), { base: ~#sf_u~0!base, offset: ~#sf_u~0!offset }, 4); [L27] FCALL call #t~mem4 := read~real({ base: ~#sf_u~0!base, offset: ~#sf_u~0!offset }, 4); [L27] ~x := #t~mem4; [L27] FCALL call write~int(#t~union5, { base: ~#sf_u~0!base, offset: ~#sf_u~0!offset }, 4); [L27] havoc #t~mem4; [L27] havoc #t~union5; [L25] FCALL call ULTIMATE.dealloc(~#sf_u~0); [L25] havoc ~#sf_u~0; VAL [#in~x=15.0, #in~y=14.0, #NULL!base=0, #NULL!offset=0, ~ix~0=16, ~iy~0=20, ~x=10.0, ~y=14.0] [L29] #res := ~x; VAL [#in~x=15.0, #in~y=14.0, #NULL!base=0, #NULL!offset=0, #res=10.0, ~ix~0=16, ~iy~0=20, ~x=10.0, ~y=14.0] [L45] RET call #t~ret7 := copysign_float(~x~0, ~y~0); VAL [#NULL!base=0, #NULL!offset=0, #t~ret7=10.0, ~x~0=15.0, ~y~0=14.0] [L45] ~res~0 := #t~ret7; [L45] havoc #t~ret7; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=10.0, ~x~0=15.0, ~y~0=14.0] [L48] CALL call #t~ret8 := isnan_float(~res~0); VAL [#in~x=10.0, #NULL!base=0, #NULL!offset=0] [L33] ~x := #in~x; [L33] #res := (if ~someBinaryFLOATComparisonOperation(~x, ~x) then 1 else 0); VAL [#in~x=10.0, #NULL!base=0, #NULL!offset=0, #res=0, ~x=10.0] [L48] RET call #t~ret8 := isnan_float(~res~0); VAL [#NULL!base=0, #NULL!offset=0, #t~ret8=0, ~res~0=10.0, ~x~0=15.0, ~y~0=14.0] [L48] assume -2147483648 <= #t~ret8 && #t~ret8 <= 2147483647; VAL [#NULL!base=0, #NULL!offset=0, #t~ret8=0, ~res~0=10.0, ~x~0=15.0, ~y~0=14.0] [L48] COND TRUE 0 == #t~ret8 [L48] havoc #t~ret8; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=10.0, ~x~0=15.0, ~y~0=14.0] [L49] assert false; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=10.0, ~x~0=15.0, ~y~0=14.0] [?] CALL call ULTIMATE.init(); VAL [#NULL!base=11, #NULL!offset=5, old(#NULL!base)=11, old(#NULL!offset)=5] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; VAL [#NULL!base=0, #NULL!offset=0, old(#NULL!base)=11, old(#NULL!offset)=5] [?] RET call ULTIMATE.init(); VAL [#NULL!base=0, #NULL!offset=0] [?] CALL call #t~ret9 := main(); VAL [#NULL!base=0, #NULL!offset=0] [L43] ~x~0 := ~someBinaryArithmeticFLOAToperation(0.0, 0.0); [L44] ~y~0 := #t~nondet6; [L44] havoc #t~nondet6; VAL [#NULL!base=0, #NULL!offset=0, ~y~0=14.0] [L45] CALL call #t~ret7 := copysign_float(~x~0, ~y~0); VAL [#in~x=15.0, #in~y=14.0, #NULL!base=0, #NULL!offset=0] [L12-L30] ~x := #in~x; [L12-L30] ~y := #in~y; [L13] havoc ~ix~0; [L13] havoc ~iy~0; VAL [#in~x=15.0, #in~y=14.0, #NULL!base=0, #NULL!offset=0, ~x=15.0, ~y=14.0] [L15] FCALL call ~#gf_u~0 := #Ultimate.alloc(4); [L16] FCALL call write~real(~x, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L17] FCALL call #t~mem0 := read~int({ base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L17] ~ix~0 := #t~mem0; [L17] FCALL call write~real(#t~union1, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L17] havoc #t~mem0; [L17] havoc #t~union1; [L15] FCALL call ULTIMATE.dealloc(~#gf_u~0); [L15] havoc ~#gf_u~0; VAL [#in~x=15.0, #in~y=14.0, #NULL!base=0, #NULL!offset=0, ~ix~0=16, ~x=15.0, ~y=14.0] [L20] FCALL call ~#gf_u~1 := #Ultimate.alloc(4); [L21] FCALL call write~real(~y, { base: ~#gf_u~1!base, offset: ~#gf_u~1!offset }, 4); [L22] FCALL call #t~mem2 := read~int({ base: ~#gf_u~1!base, offset: ~#gf_u~1!offset }, 4); [L22] ~iy~0 := #t~mem2; [L22] FCALL call write~real(#t~union3, { base: ~#gf_u~1!base, offset: ~#gf_u~1!offset }, 4); [L22] havoc #t~union3; [L22] havoc #t~mem2; [L20] FCALL call ULTIMATE.dealloc(~#gf_u~1); [L20] havoc ~#gf_u~1; VAL [#in~x=15.0, #in~y=14.0, #NULL!base=0, #NULL!offset=0, ~ix~0=16, ~iy~0=20, ~x=15.0, ~y=14.0] [L25] FCALL call ~#sf_u~0 := #Ultimate.alloc(4); [L26] FCALL call write~int(~bitwiseOr(~bitwiseAnd(~ix~0, 2147483647), ~bitwiseAnd(~iy~0, 2147483648)), { base: ~#sf_u~0!base, offset: ~#sf_u~0!offset }, 4); [L27] FCALL call #t~mem4 := read~real({ base: ~#sf_u~0!base, offset: ~#sf_u~0!offset }, 4); [L27] ~x := #t~mem4; [L27] FCALL call write~int(#t~union5, { base: ~#sf_u~0!base, offset: ~#sf_u~0!offset }, 4); [L27] havoc #t~mem4; [L27] havoc #t~union5; [L25] FCALL call ULTIMATE.dealloc(~#sf_u~0); [L25] havoc ~#sf_u~0; VAL [#in~x=15.0, #in~y=14.0, #NULL!base=0, #NULL!offset=0, ~ix~0=16, ~iy~0=20, ~x=10.0, ~y=14.0] [L29] #res := ~x; VAL [#in~x=15.0, #in~y=14.0, #NULL!base=0, #NULL!offset=0, #res=10.0, ~ix~0=16, ~iy~0=20, ~x=10.0, ~y=14.0] [L45] RET call #t~ret7 := copysign_float(~x~0, ~y~0); VAL [#NULL!base=0, #NULL!offset=0, #t~ret7=10.0, ~x~0=15.0, ~y~0=14.0] [L45] ~res~0 := #t~ret7; [L45] havoc #t~ret7; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=10.0, ~x~0=15.0, ~y~0=14.0] [L48] CALL call #t~ret8 := isnan_float(~res~0); VAL [#in~x=10.0, #NULL!base=0, #NULL!offset=0] [L33] ~x := #in~x; [L33] #res := (if ~someBinaryFLOATComparisonOperation(~x, ~x) then 1 else 0); VAL [#in~x=10.0, #NULL!base=0, #NULL!offset=0, #res=0, ~x=10.0] [L48] RET call #t~ret8 := isnan_float(~res~0); VAL [#NULL!base=0, #NULL!offset=0, #t~ret8=0, ~res~0=10.0, ~x~0=15.0, ~y~0=14.0] [L48] assume -2147483648 <= #t~ret8 && #t~ret8 <= 2147483647; VAL [#NULL!base=0, #NULL!offset=0, #t~ret8=0, ~res~0=10.0, ~x~0=15.0, ~y~0=14.0] [L48] COND TRUE 0 == #t~ret8 [L48] havoc #t~ret8; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=10.0, ~x~0=15.0, ~y~0=14.0] [L49] assert false; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=10.0, ~x~0=15.0, ~y~0=14.0] ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [?] CALL call ULTIMATE.init(); VAL [#NULL!base=11, #NULL!offset=5, old(#NULL!base)=11, old(#NULL!offset)=5] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; VAL [#NULL!base=0, #NULL!offset=0, old(#NULL!base)=11, old(#NULL!offset)=5] [?] RET call ULTIMATE.init(); VAL [#NULL!base=0, #NULL!offset=0] [?] CALL call #t~ret9 := main(); VAL [#NULL!base=0, #NULL!offset=0] [L43] ~x~0 := ~someBinaryArithmeticFLOAToperation(0.0, 0.0); [L44] ~y~0 := #t~nondet6; [L44] havoc #t~nondet6; VAL [#NULL!base=0, #NULL!offset=0, ~y~0=14.0] [L45] CALL call #t~ret7 := copysign_float(~x~0, ~y~0); VAL [#in~x=15.0, #in~y=14.0, #NULL!base=0, #NULL!offset=0] [L12-L30] ~x := #in~x; [L12-L30] ~y := #in~y; [L13] havoc ~ix~0; [L13] havoc ~iy~0; VAL [#in~x=15.0, #in~y=14.0, #NULL!base=0, #NULL!offset=0, ~x=15.0, ~y=14.0] [L15] FCALL call ~#gf_u~0 := #Ultimate.alloc(4); [L16] FCALL call write~real(~x, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L17] FCALL call #t~mem0 := read~int({ base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L17] ~ix~0 := #t~mem0; [L17] FCALL call write~real(#t~union1, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L17] havoc #t~mem0; [L17] havoc #t~union1; [L15] FCALL call ULTIMATE.dealloc(~#gf_u~0); [L15] havoc ~#gf_u~0; VAL [#in~x=15.0, #in~y=14.0, #NULL!base=0, #NULL!offset=0, ~ix~0=16, ~x=15.0, ~y=14.0] [L20] FCALL call ~#gf_u~1 := #Ultimate.alloc(4); [L21] FCALL call write~real(~y, { base: ~#gf_u~1!base, offset: ~#gf_u~1!offset }, 4); [L22] FCALL call #t~mem2 := read~int({ base: ~#gf_u~1!base, offset: ~#gf_u~1!offset }, 4); [L22] ~iy~0 := #t~mem2; [L22] FCALL call write~real(#t~union3, { base: ~#gf_u~1!base, offset: ~#gf_u~1!offset }, 4); [L22] havoc #t~union3; [L22] havoc #t~mem2; [L20] FCALL call ULTIMATE.dealloc(~#gf_u~1); [L20] havoc ~#gf_u~1; VAL [#in~x=15.0, #in~y=14.0, #NULL!base=0, #NULL!offset=0, ~ix~0=16, ~iy~0=20, ~x=15.0, ~y=14.0] [L25] FCALL call ~#sf_u~0 := #Ultimate.alloc(4); [L26] FCALL call write~int(~bitwiseOr(~bitwiseAnd(~ix~0, 2147483647), ~bitwiseAnd(~iy~0, 2147483648)), { base: ~#sf_u~0!base, offset: ~#sf_u~0!offset }, 4); [L27] FCALL call #t~mem4 := read~real({ base: ~#sf_u~0!base, offset: ~#sf_u~0!offset }, 4); [L27] ~x := #t~mem4; [L27] FCALL call write~int(#t~union5, { base: ~#sf_u~0!base, offset: ~#sf_u~0!offset }, 4); [L27] havoc #t~mem4; [L27] havoc #t~union5; [L25] FCALL call ULTIMATE.dealloc(~#sf_u~0); [L25] havoc ~#sf_u~0; VAL [#in~x=15.0, #in~y=14.0, #NULL!base=0, #NULL!offset=0, ~ix~0=16, ~iy~0=20, ~x=10.0, ~y=14.0] [L29] #res := ~x; VAL [#in~x=15.0, #in~y=14.0, #NULL!base=0, #NULL!offset=0, #res=10.0, ~ix~0=16, ~iy~0=20, ~x=10.0, ~y=14.0] [L45] RET call #t~ret7 := copysign_float(~x~0, ~y~0); VAL [#NULL!base=0, #NULL!offset=0, #t~ret7=10.0, ~x~0=15.0, ~y~0=14.0] [L45] ~res~0 := #t~ret7; [L45] havoc #t~ret7; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=10.0, ~x~0=15.0, ~y~0=14.0] [L48] CALL call #t~ret8 := isnan_float(~res~0); VAL [#in~x=10.0, #NULL!base=0, #NULL!offset=0] [L33] ~x := #in~x; [L33] #res := (if ~someBinaryFLOATComparisonOperation(~x, ~x) then 1 else 0); VAL [#in~x=10.0, #NULL!base=0, #NULL!offset=0, #res=0, ~x=10.0] [L48] RET call #t~ret8 := isnan_float(~res~0); VAL [#NULL!base=0, #NULL!offset=0, #t~ret8=0, ~res~0=10.0, ~x~0=15.0, ~y~0=14.0] [L48] assume -2147483648 <= #t~ret8 && #t~ret8 <= 2147483647; VAL [#NULL!base=0, #NULL!offset=0, #t~ret8=0, ~res~0=10.0, ~x~0=15.0, ~y~0=14.0] [L48] COND TRUE 0 == #t~ret8 [L48] havoc #t~ret8; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=10.0, ~x~0=15.0, ~y~0=14.0] [L49] assert false; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=10.0, ~x~0=15.0, ~y~0=14.0] [L43] float x = 0.0f / 0.0f; [L44] float y = __VERIFIER_nondet_float(); [L45] CALL, EXPR copysign_float(x, y) VAL [\old(x)=15, \old(y)=14] [L13] __uint32_t ix, iy; VAL [\old(x)=15, \old(y)=14, x=15, y=14] [L15] ieee_float_shape_type gf_u; [L16] gf_u.value = (x) [L17] EXPR gf_u.word [L17] (ix) = gf_u.word [L20] ieee_float_shape_type gf_u; [L21] gf_u.value = (y) [L22] EXPR gf_u.word [L22] (iy) = gf_u.word [L25] ieee_float_shape_type sf_u; [L26] sf_u.word = ((ix & 0x7fffffff) | (iy & 0x80000000)) [L27] EXPR sf_u.value [L27] (x) = sf_u.value [L29] return x; VAL [\old(x)=15, \old(y)=14, \result=10, ix=16, iy=20, x=10, y=14] [L45] RET, EXPR copysign_float(x, y) VAL [copysign_float(x, y)=10, x=15, y=14] [L45] float res = copysign_float(x, y); [L48] CALL, EXPR isnan_float(res) VAL [\old(x)=10] [L33] return x != x; VAL [\old(x)=10, \result=0, x=10] [L48] RET, EXPR isnan_float(res) VAL [isnan_float(res)=0, res=10, x=15, y=14] [L48] COND TRUE !isnan_float(res) [L49] __VERIFIER_error() VAL [res=10, x=15, y=14] ----- [2018-11-23 02:50:42,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:50:42 BoogieIcfgContainer [2018-11-23 02:50:42,237 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 02:50:42,237 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 02:50:42,237 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 02:50:42,237 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 02:50:42,238 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:50:41" (3/4) ... [2018-11-23 02:50:42,240 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-23 02:50:42,241 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 02:50:42,241 INFO L168 Benchmark]: Toolchain (without parser) took 835.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 959.7 MB in the beginning and 1.1 GB in the end (delta: -130.0 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2018-11-23 02:50:42,243 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 02:50:42,243 INFO L168 Benchmark]: CACSL2BoogieTranslator took 161.77 ms. Allocated memory is still 1.0 GB. Free memory was 959.7 MB in the beginning and 948.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 02:50:42,243 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.72 ms. Allocated memory is still 1.0 GB. Free memory is still 946.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 02:50:42,244 INFO L168 Benchmark]: Boogie Preprocessor took 70.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 946.2 MB in the beginning and 1.1 GB in the end (delta: -197.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. [2018-11-23 02:50:42,244 INFO L168 Benchmark]: RCFGBuilder took 223.50 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: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2018-11-23 02:50:42,245 INFO L168 Benchmark]: TraceAbstraction took 351.60 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: 34.4 MB). Peak memory consumption was 34.4 MB. Max. memory is 11.5 GB. [2018-11-23 02:50:42,246 INFO L168 Benchmark]: Witness Printer took 3.38 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 02:50:42,248 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 161.77 ms. Allocated memory is still 1.0 GB. Free memory was 959.7 MB in the beginning and 948.9 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 21.72 ms. Allocated memory is still 1.0 GB. Free memory is still 946.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 70.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 946.2 MB in the beginning and 1.1 GB in the end (delta: -197.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 223.50 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: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 351.60 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: 34.4 MB). Peak memory consumption was 34.4 MB. Max. memory is 11.5 GB. * Witness Printer took 3.38 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 49]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 33, overapproximation of bitwiseOr at line 26, overapproximation of someBinaryArithmeticFLOAToperation at line 43. Possible FailurePath: [L43] float x = 0.0f / 0.0f; [L44] float y = __VERIFIER_nondet_float(); [L45] CALL, EXPR copysign_float(x, y) VAL [\old(x)=15, \old(y)=14] [L13] __uint32_t ix, iy; VAL [\old(x)=15, \old(y)=14, x=15, y=14] [L15] ieee_float_shape_type gf_u; [L16] gf_u.value = (x) [L17] EXPR gf_u.word [L17] (ix) = gf_u.word [L20] ieee_float_shape_type gf_u; [L21] gf_u.value = (y) [L22] EXPR gf_u.word [L22] (iy) = gf_u.word [L25] ieee_float_shape_type sf_u; [L26] sf_u.word = ((ix & 0x7fffffff) | (iy & 0x80000000)) [L27] EXPR sf_u.value [L27] (x) = sf_u.value [L29] return x; VAL [\old(x)=15, \old(y)=14, \result=10, ix=16, iy=20, x=10, y=14] [L45] RET, EXPR copysign_float(x, y) VAL [copysign_float(x, y)=10, x=15, y=14] [L45] float res = copysign_float(x, y); [L48] CALL, EXPR isnan_float(res) VAL [\old(x)=10] [L33] return x != x; VAL [\old(x)=10, \result=0, x=10] [L48] RET, EXPR isnan_float(res) VAL [isnan_float(res)=0, res=10, x=15, y=14] [L48] COND TRUE !isnan_float(res) [L49] __VERIFIER_error() VAL [res=10, x=15, y=14] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 30 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 29 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred 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: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 441 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 02:50:43,667 INFO L170 SettingsManager]: Resetting all preferences to default values... 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[2018-11-23 02:50:43,690 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 02:50:43,690 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 02:50:43,691 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 02:50:43,691 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 02:50:43,692 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 02:50:43,692 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 02:50:43,693 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 02:50:43,693 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 02:50:43,694 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 02:50:43,694 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 02:50:43,694 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 02:50:43,695 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 02:50:43,695 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 02:50:43,695 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_111ab1b6-95db-4eae-b4ff-7b2b46b1667c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-23 02:50:43,706 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 02:50:43,706 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 02:50:43,707 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 02:50:43,707 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 02:50:43,707 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 02:50:43,707 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 02:50:43,707 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 02:50:43,707 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 02:50:43,707 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 02:50:43,707 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 02:50:43,708 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 02:50:43,708 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 02:50:43,708 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 02:50:43,708 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 02:50:43,708 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 02:50:43,708 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 02:50:43,708 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 02:50:43,709 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-23 02:50:43,710 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-23 02:50:43,710 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 02:50:43,710 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 02:50:43,710 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 02:50:43,710 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 02:50:43,711 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 02:50:43,711 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 02:50:43,711 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 02:50:43,711 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 02:50:43,711 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 02:50:43,711 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 02:50:43,711 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 02:50:43,711 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 02:50:43,711 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-23 02:50:43,711 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 02:50:43,711 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-23 02:50:43,711 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-23 02:50:43,711 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_111ab1b6-95db-4eae-b4ff-7b2b46b1667c/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 -> c91754c7d707a58127a2dc4a18babac51d557647 [2018-11-23 02:50:43,740 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 02:50:43,748 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 02:50:43,750 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 02:50:43,751 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 02:50:43,751 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 02:50:43,751 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_111ab1b6-95db-4eae-b4ff-7b2b46b1667c/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1381_true-unreach-call.c [2018-11-23 02:50:43,786 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_111ab1b6-95db-4eae-b4ff-7b2b46b1667c/bin-2019/utaipan/data/fc0d37f5a/a82266dbd31d49b0b6818d1972a5c408/FLAG3f18810d1 [2018-11-23 02:50:44,177 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 02:50:44,177 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_111ab1b6-95db-4eae-b4ff-7b2b46b1667c/sv-benchmarks/c/float-newlib/float_req_bl_1381_true-unreach-call.c [2018-11-23 02:50:44,182 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_111ab1b6-95db-4eae-b4ff-7b2b46b1667c/bin-2019/utaipan/data/fc0d37f5a/a82266dbd31d49b0b6818d1972a5c408/FLAG3f18810d1 [2018-11-23 02:50:44,190 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_111ab1b6-95db-4eae-b4ff-7b2b46b1667c/bin-2019/utaipan/data/fc0d37f5a/a82266dbd31d49b0b6818d1972a5c408 [2018-11-23 02:50:44,192 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 02:50:44,193 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 02:50:44,193 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 02:50:44,194 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 02:50:44,196 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 02:50:44,196 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:50:44" (1/1) ... [2018-11-23 02:50:44,198 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18f0fe3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:44, skipping insertion in model container [2018-11-23 02:50:44,198 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:50:44" (1/1) ... [2018-11-23 02:50:44,204 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 02:50:44,224 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 02:50:44,351 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 02:50:44,355 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 02:50:44,369 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 02:50:44,384 INFO L195 MainTranslator]: Completed translation [2018-11-23 02:50:44,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:44 WrapperNode [2018-11-23 02:50:44,385 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 02:50:44,385 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 02:50:44,385 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 02:50:44,386 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 02:50:44,391 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:44" (1/1) ... [2018-11-23 02:50:44,397 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:44" (1/1) ... [2018-11-23 02:50:44,402 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 02:50:44,402 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 02:50:44,402 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 02:50:44,402 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 02:50:44,407 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:44" (1/1) ... [2018-11-23 02:50:44,408 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:44" (1/1) ... [2018-11-23 02:50:44,409 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:44" (1/1) ... [2018-11-23 02:50:44,410 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:44" (1/1) ... [2018-11-23 02:50:44,416 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:44" (1/1) ... [2018-11-23 02:50:44,419 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:44" (1/1) ... [2018-11-23 02:50:44,420 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:44" (1/1) ... [2018-11-23 02:50:44,422 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 02:50:44,423 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 02:50:44,423 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 02:50:44,423 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 02:50:44,424 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_111ab1b6-95db-4eae-b4ff-7b2b46b1667c/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 02:50:44,496 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_float [2018-11-23 02:50:44,496 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_float [2018-11-23 02:50:44,496 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 02:50:44,496 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 02:50:44,496 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-23 02:50:44,496 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-23 02:50:44,496 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-23 02:50:44,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 02:50:44,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 02:50:44,497 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 02:50:44,497 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-23 02:50:44,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 02:50:44,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 02:50:44,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-23 02:50:44,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-23 02:50:44,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 02:50:44,651 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 02:50:44,651 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-23 02:50:44,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:50:44 BoogieIcfgContainer [2018-11-23 02:50:44,652 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 02:50:44,652 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 02:50:44,652 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 02:50:44,656 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 02:50:44,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:50:44" (1/3) ... [2018-11-23 02:50:44,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cc37636 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:50:44, skipping insertion in model container [2018-11-23 02:50:44,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:44" (2/3) ... [2018-11-23 02:50:44,657 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cc37636 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:50:44, skipping insertion in model container [2018-11-23 02:50:44,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:50:44" (3/3) ... [2018-11-23 02:50:44,659 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1381_true-unreach-call.c [2018-11-23 02:50:44,668 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 02:50:44,674 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 02:50:44,685 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 02:50:44,702 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 02:50:44,703 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 02:50:44,703 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 02:50:44,703 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 02:50:44,703 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 02:50:44,703 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 02:50:44,703 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 02:50:44,703 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 02:50:44,703 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 02:50:44,714 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2018-11-23 02:50:44,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-23 02:50:44,720 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 02:50:44,721 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 02:50:44,722 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 02:50:44,725 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:50:44,725 INFO L82 PathProgramCache]: Analyzing trace with hash 1449244753, now seen corresponding path program 1 times [2018-11-23 02:50:44,728 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 02:50:44,728 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_111ab1b6-95db-4eae-b4ff-7b2b46b1667c/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 02:50:44,732 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:50:44,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:50:44,776 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 02:50:44,788 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 02:50:44,788 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 02:50:44,796 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 02:50:44,796 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 02:50:44,798 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-23 02:50:44,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-23 02:50:44,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 02:50:44,807 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 2 states. [2018-11-23 02:50:44,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 02:50:44,818 INFO L93 Difference]: Finished difference Result 50 states and 62 transitions. [2018-11-23 02:50:44,819 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-23 02:50:44,820 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-11-23 02:50:44,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 02:50:44,827 INFO L225 Difference]: With dead ends: 50 [2018-11-23 02:50:44,828 INFO L226 Difference]: Without dead ends: 25 [2018-11-23 02:50:44,830 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 02:50:44,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-11-23 02:50:44,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2018-11-23 02:50:44,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-11-23 02:50:44,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 24 transitions. [2018-11-23 02:50:44,856 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 24 transitions. Word has length 21 [2018-11-23 02:50:44,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 02:50:44,857 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 24 transitions. [2018-11-23 02:50:44,857 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-23 02:50:44,857 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 24 transitions. [2018-11-23 02:50:44,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-23 02:50:44,858 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 02:50:44,858 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 02:50:44,858 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 02:50:44,858 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:50:44,858 INFO L82 PathProgramCache]: Analyzing trace with hash -739473603, now seen corresponding path program 1 times [2018-11-23 02:50:44,859 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 02:50:44,859 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_111ab1b6-95db-4eae-b4ff-7b2b46b1667c/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-23 02:50:44,867 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:50:44,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:50:44,917 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 02:50:45,160 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 02:50:45,160 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 02:50:45,167 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 02:50:45,167 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-11-23 02:50:45,169 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-23 02:50:45,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-23 02:50:45,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2018-11-23 02:50:45,169 INFO L87 Difference]: Start difference. First operand 25 states and 24 transitions. Second operand 11 states. [2018-11-23 02:50:45,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 02:50:45,655 INFO L93 Difference]: Finished difference Result 25 states and 24 transitions. [2018-11-23 02:50:45,655 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-23 02:50:45,655 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 24 [2018-11-23 02:50:45,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 02:50:45,656 INFO L225 Difference]: With dead ends: 25 [2018-11-23 02:50:45,656 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 02:50:45,657 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2018-11-23 02:50:45,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 02:50:45,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 02:50:45,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 02:50:45,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 02:50:45,658 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2018-11-23 02:50:45,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 02:50:45,658 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 02:50:45,658 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-23 02:50:45,658 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 02:50:45,658 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 02:50:45,661 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 02:50:45,710 INFO L448 ceAbstractionStarter]: For program point isnan_floatFINAL(line 33) no Hoare annotation was computed. [2018-11-23 02:50:45,710 INFO L451 ceAbstractionStarter]: At program point isnan_floatENTRY(line 33) the Hoare annotation is: true [2018-11-23 02:50:45,710 INFO L448 ceAbstractionStarter]: For program point isnan_floatEXIT(line 33) no Hoare annotation was computed. [2018-11-23 02:50:45,710 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-23 02:50:45,711 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-23 02:50:45,711 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 02:50:45,711 INFO L448 ceAbstractionStarter]: For program point copysign_floatEXIT(lines 12 30) no Hoare annotation was computed. [2018-11-23 02:50:45,711 INFO L448 ceAbstractionStarter]: For program point L19(lines 19 23) no Hoare annotation was computed. [2018-11-23 02:50:45,711 INFO L448 ceAbstractionStarter]: For program point L19-1(lines 12 30) no Hoare annotation was computed. [2018-11-23 02:50:45,711 INFO L448 ceAbstractionStarter]: For program point L24(lines 24 28) no Hoare annotation was computed. [2018-11-23 02:50:45,711 INFO L448 ceAbstractionStarter]: For program point L24-1(lines 12 30) no Hoare annotation was computed. [2018-11-23 02:50:45,711 INFO L448 ceAbstractionStarter]: For program point L24-2(lines 24 28) no Hoare annotation was computed. [2018-11-23 02:50:45,712 INFO L451 ceAbstractionStarter]: At program point copysign_floatENTRY(lines 12 30) the Hoare annotation is: true [2018-11-23 02:50:45,712 INFO L448 ceAbstractionStarter]: For program point L14-1(lines 14 18) no Hoare annotation was computed. [2018-11-23 02:50:45,712 INFO L444 ceAbstractionStarter]: At program point L14-2(lines 14 18) the Hoare annotation is: (= |copysign_float_#in~x| copysign_float_~x) [2018-11-23 02:50:45,712 INFO L448 ceAbstractionStarter]: For program point copysign_floatFINAL(lines 12 30) no Hoare annotation was computed. [2018-11-23 02:50:45,712 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 02:50:45,712 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-23 02:50:45,712 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 02:50:45,712 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 02:50:45,713 INFO L448 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2018-11-23 02:50:45,713 INFO L444 ceAbstractionStarter]: At program point L48(line 48) the Hoare annotation is: (and (exists ((copysign_float_~iy~0 (_ BitVec 32)) (copysign_float_~ix~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) copysign_float_~ix~0) ((_ extract 30 23) copysign_float_~ix~0) ((_ extract 22 0) copysign_float_~ix~0)) (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))) (= main_~res~0 (let ((.cse0 (bvor (bvand (_ bv2147483647 32) copysign_float_~ix~0) (bvand (_ bv2147483648 32) copysign_float_~iy~0)))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)))))) (= main_~x~0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) [2018-11-23 02:50:45,713 INFO L448 ceAbstractionStarter]: For program point L48-1(lines 48 51) no Hoare annotation was computed. [2018-11-23 02:50:45,713 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 35 54) the Hoare annotation is: true [2018-11-23 02:50:45,713 INFO L444 ceAbstractionStarter]: At program point L45(line 45) the Hoare annotation is: (= main_~x~0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))) [2018-11-23 02:50:45,713 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 35 54) no Hoare annotation was computed. [2018-11-23 02:50:45,713 INFO L448 ceAbstractionStarter]: For program point L45-1(line 45) no Hoare annotation was computed. [2018-11-23 02:50:45,714 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 35 54) no Hoare annotation was computed. [2018-11-23 02:50:45,714 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 49) no Hoare annotation was computed. [2018-11-23 02:50:45,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:50:45 BoogieIcfgContainer [2018-11-23 02:50:45,724 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 02:50:45,724 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 02:50:45,724 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 02:50:45,724 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 02:50:45,725 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:50:44" (3/4) ... [2018-11-23 02:50:45,728 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 02:50:45,733 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-11-23 02:50:45,733 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 02:50:45,733 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure copysign_float [2018-11-23 02:50:45,734 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 02:50:45,737 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2018-11-23 02:50:45,738 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-23 02:50:45,738 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 02:50:45,761 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-23 02:50:45,772 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_111ab1b6-95db-4eae-b4ff-7b2b46b1667c/bin-2019/utaipan/witness.graphml [2018-11-23 02:50:45,772 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 02:50:45,773 INFO L168 Benchmark]: Toolchain (without parser) took 1580.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 951.9 MB in the beginning and 1.0 GB in the end (delta: -57.1 MB). Peak memory consumption was 86.0 MB. Max. memory is 11.5 GB. [2018-11-23 02:50:45,774 INFO L168 Benchmark]: CDTParser took 0.11 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 02:50:45,774 INFO L168 Benchmark]: CACSL2BoogieTranslator took 191.71 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 935.8 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-23 02:50:45,774 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.57 ms. Allocated memory is still 1.0 GB. Free memory is still 935.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 02:50:45,774 INFO L168 Benchmark]: Boogie Preprocessor took 20.20 ms. Allocated memory is still 1.0 GB. Free memory is still 935.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 02:50:45,774 INFO L168 Benchmark]: RCFGBuilder took 229.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 935.8 MB in the beginning and 1.1 GB in the end (delta: -182.1 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. [2018-11-23 02:50:45,775 INFO L168 Benchmark]: TraceAbstraction took 1071.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 95.1 MB). Peak memory consumption was 95.1 MB. Max. memory is 11.5 GB. [2018-11-23 02:50:45,775 INFO L168 Benchmark]: Witness Printer took 48.64 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-11-23 02:50:45,777 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 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 191.71 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 935.8 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 16.57 ms. Allocated memory is still 1.0 GB. Free memory is still 935.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.20 ms. Allocated memory is still 1.0 GB. Free memory is still 935.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 229.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 935.8 MB in the beginning and 1.1 GB in the end (delta: -182.1 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1071.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 95.1 MB). Peak memory consumption was 95.1 MB. Max. memory is 11.5 GB. * Witness Printer took 48.64 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 49]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 29 locations, 1 error locations. SAFE Result, 1.0s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 44 SDtfs, 9 SDslu, 118 SDs, 0 SdLazy, 52 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 49 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 10 PreInvPairs, 12 NumberOfFragments, 63 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 43 ConstructedInterpolants, 6 QuantifiedInterpolants, 7944 SizeOfPredicates, 7 NumberOfNonLiveVariables, 118 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...