./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0281_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_86bab8cc-7ab1-44c9-b0d2-dfbc788f9b51/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_86bab8cc-7ab1-44c9-b0d2-dfbc788f9b51/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_86bab8cc-7ab1-44c9-b0d2-dfbc788f9b51/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_86bab8cc-7ab1-44c9-b0d2-dfbc788f9b51/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0281_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_86bab8cc-7ab1-44c9-b0d2-dfbc788f9b51/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_86bab8cc-7ab1-44c9-b0d2-dfbc788f9b51/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 ea7f366bf9317f351e4b5f275a15188ee4a0efbb ................................................................................................................................................................................................................................................................................................................................. 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_86bab8cc-7ab1-44c9-b0d2-dfbc788f9b51/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_86bab8cc-7ab1-44c9-b0d2-dfbc788f9b51/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_86bab8cc-7ab1-44c9-b0d2-dfbc788f9b51/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_86bab8cc-7ab1-44c9-b0d2-dfbc788f9b51/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0281_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_86bab8cc-7ab1-44c9-b0d2-dfbc788f9b51/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_86bab8cc-7ab1-44c9-b0d2-dfbc788f9b51/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 ea7f366bf9317f351e4b5f275a15188ee4a0efbb ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 10:51:40,890 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 10:51:40,892 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 10:51:40,901 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 10:51:40,902 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 10:51:40,902 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 10:51:40,903 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 10:51:40,905 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 10:51:40,906 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 10:51:40,907 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 10:51:40,908 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 10:51:40,908 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 10:51:40,909 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 10:51:40,910 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 10:51:40,911 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 10:51:40,912 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 10:51:40,913 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 10:51:40,914 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 10:51:40,916 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 10:51:40,917 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 10:51:40,918 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 10:51:40,919 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 10:51:40,920 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 10:51:40,920 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 10:51:40,920 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 10:51:40,922 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 10:51:40,923 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 10:51:40,923 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 10:51:40,924 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 10:51:40,925 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 10:51:40,925 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 10:51:40,926 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 10:51:40,926 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 10:51:40,927 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 10:51:40,927 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 10:51:40,928 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 10:51:40,928 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_86bab8cc-7ab1-44c9-b0d2-dfbc788f9b51/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 10:51:40,937 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 10:51:40,937 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 10:51:40,938 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 10:51:40,938 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 10:51:40,938 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 10:51:40,938 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 10:51:40,938 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 10:51:40,938 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 10:51:40,939 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 10:51:40,939 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 10:51:40,939 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 10:51:40,939 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 10:51:40,939 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 10:51:40,940 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 10:51:40,940 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 10:51:40,940 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 10:51:40,940 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 10:51:40,940 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 10:51:40,941 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 10:51:40,941 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 10:51:40,941 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 10:51:40,941 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 10:51:40,943 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 10:51:40,944 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 10:51:40,944 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 10:51:40,944 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 10:51:40,944 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 10:51:40,944 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 10:51:40,945 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 10:51:40,945 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 10:51:40,945 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 10:51:40,945 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 10:51:40,945 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 10:51:40,945 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 10:51:40,945 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 10:51:40,946 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 10:51:40,946 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 10:51:40,946 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_86bab8cc-7ab1-44c9-b0d2-dfbc788f9b51/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 -> ea7f366bf9317f351e4b5f275a15188ee4a0efbb [2018-11-18 10:51:40,972 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 10:51:40,983 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 10:51:40,986 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 10:51:40,988 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 10:51:40,988 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 10:51:40,988 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_86bab8cc-7ab1-44c9-b0d2-dfbc788f9b51/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0281_true-unreach-call.c [2018-11-18 10:51:41,033 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_86bab8cc-7ab1-44c9-b0d2-dfbc788f9b51/bin-2019/utaipan/data/4c9e8e31a/008a15346e414c95bca129d1cc62c3d6/FLAGa60959757 [2018-11-18 10:51:41,415 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 10:51:41,416 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_86bab8cc-7ab1-44c9-b0d2-dfbc788f9b51/sv-benchmarks/c/float-newlib/float_req_bl_0281_true-unreach-call.c [2018-11-18 10:51:41,422 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_86bab8cc-7ab1-44c9-b0d2-dfbc788f9b51/bin-2019/utaipan/data/4c9e8e31a/008a15346e414c95bca129d1cc62c3d6/FLAGa60959757 [2018-11-18 10:51:41,432 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_86bab8cc-7ab1-44c9-b0d2-dfbc788f9b51/bin-2019/utaipan/data/4c9e8e31a/008a15346e414c95bca129d1cc62c3d6 [2018-11-18 10:51:41,435 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 10:51:41,436 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 10:51:41,437 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 10:51:41,437 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 10:51:41,441 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 10:51:41,441 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:51:41" (1/1) ... [2018-11-18 10:51:41,444 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bba66d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:51:41, skipping insertion in model container [2018-11-18 10:51:41,444 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:51:41" (1/1) ... [2018-11-18 10:51:41,455 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 10:51:41,477 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 10:51:41,644 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:51:41,647 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 10:51:41,680 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:51:41,744 INFO L195 MainTranslator]: Completed translation [2018-11-18 10:51:41,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:51:41 WrapperNode [2018-11-18 10:51:41,744 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 10:51:41,745 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 10:51:41,745 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 10:51:41,745 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 10:51:41,755 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:51:41" (1/1) ... [2018-11-18 10:51:41,768 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:51:41" (1/1) ... [2018-11-18 10:51:41,777 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 10:51:41,777 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 10:51:41,777 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 10:51:41,778 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 10:51:41,788 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:51:41" (1/1) ... [2018-11-18 10:51:41,788 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:51:41" (1/1) ... [2018-11-18 10:51:41,792 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:51:41" (1/1) ... [2018-11-18 10:51:41,792 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:51:41" (1/1) ... [2018-11-18 10:51:41,812 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:51:41" (1/1) ... [2018-11-18 10:51:41,820 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:51:41" (1/1) ... [2018-11-18 10:51:41,823 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:51:41" (1/1) ... [2018-11-18 10:51:41,826 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 10:51:41,826 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 10:51:41,827 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 10:51:41,827 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 10:51:41,828 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:51:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86bab8cc-7ab1-44c9-b0d2-dfbc788f9b51/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 [2018-11-18 10:51:41,878 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 10:51:41,878 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 10:51:41,878 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_asinf [2018-11-18 10:51:41,878 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_asinf [2018-11-18 10:51:41,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-18 10:51:41,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 10:51:41,879 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-18 10:51:41,879 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-18 10:51:41,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 10:51:41,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 10:51:41,879 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-11-18 10:51:41,879 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-11-18 10:51:41,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-18 10:51:41,879 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 10:51:41,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 10:51:41,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 10:51:41,880 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 10:51:41,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 10:51:41,880 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-11-18 10:51:41,880 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-11-18 10:51:42,335 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 10:51:42,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:51:42 BoogieIcfgContainer [2018-11-18 10:51:42,335 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 10:51:42,336 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 10:51:42,336 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 10:51:42,338 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 10:51:42,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 10:51:41" (1/3) ... [2018-11-18 10:51:42,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bf12aa4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:51:42, skipping insertion in model container [2018-11-18 10:51:42,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:51:41" (2/3) ... [2018-11-18 10:51:42,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bf12aa4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:51:42, skipping insertion in model container [2018-11-18 10:51:42,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:51:42" (3/3) ... [2018-11-18 10:51:42,342 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0281_true-unreach-call.c [2018-11-18 10:51:42,352 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 10:51:42,360 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 10:51:42,376 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 10:51:42,404 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 10:51:42,405 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 10:51:42,405 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 10:51:42,405 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 10:51:42,405 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 10:51:42,405 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 10:51:42,405 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 10:51:42,405 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 10:51:42,419 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states. [2018-11-18 10:51:42,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-18 10:51:42,424 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:51:42,425 INFO L375 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] [2018-11-18 10:51:42,426 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:51:42,430 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:51:42,431 INFO L82 PathProgramCache]: Analyzing trace with hash -283862119, now seen corresponding path program 1 times [2018-11-18 10:51:42,432 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:51:42,471 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:51:42,471 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:51:42,471 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:51:42,472 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:51:42,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:51:42,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:51:42,563 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:51:42,563 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 10:51:42,564 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 10:51:42,569 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 10:51:42,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 10:51:42,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 10:51:42,586 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 2 states. [2018-11-18 10:51:42,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:51:42,613 INFO L93 Difference]: Finished difference Result 151 states and 222 transitions. [2018-11-18 10:51:42,613 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 10:51:42,615 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-11-18 10:51:42,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:51:42,624 INFO L225 Difference]: With dead ends: 151 [2018-11-18 10:51:42,624 INFO L226 Difference]: Without dead ends: 75 [2018-11-18 10:51:42,627 INFO L604 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 [2018-11-18 10:51:42,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-11-18 10:51:42,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2018-11-18 10:51:42,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2018-11-18 10:51:42,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 92 transitions. [2018-11-18 10:51:42,660 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 92 transitions. Word has length 22 [2018-11-18 10:51:42,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:51:42,660 INFO L480 AbstractCegarLoop]: Abstraction has 75 states and 92 transitions. [2018-11-18 10:51:42,660 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 10:51:42,661 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 92 transitions. [2018-11-18 10:51:42,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-18 10:51:42,662 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:51:42,662 INFO L375 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] [2018-11-18 10:51:42,665 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:51:42,666 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:51:42,666 INFO L82 PathProgramCache]: Analyzing trace with hash -715341956, now seen corresponding path program 1 times [2018-11-18 10:51:42,666 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:51:42,667 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:51:42,667 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:51:42,667 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:51:42,667 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:51:42,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:51:42,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:51:42,742 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 10:51:42,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 10:51:42 BoogieIcfgContainer [2018-11-18 10:51:42,782 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 10:51:42,782 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 10:51:42,782 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 10:51:42,782 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 10:51:42,783 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:51:42" (3/4) ... [2018-11-18 10:51:42,786 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 10:51:42,786 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 10:51:42,787 INFO L168 Benchmark]: Toolchain (without parser) took 1352.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.6 MB). Free memory was 959.1 MB in the beginning and 1.1 GB in the end (delta: -119.6 MB). Peak memory consumption was 44.0 MB. Max. memory is 11.5 GB. [2018-11-18 10:51:42,789 INFO L168 Benchmark]: CDTParser took 0.15 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. [2018-11-18 10:51:42,789 INFO L168 Benchmark]: CACSL2BoogieTranslator took 308.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.6 MB). Free memory was 959.1 MB in the beginning and 1.2 GB in the end (delta: -202.3 MB). Peak memory consumption was 31.3 MB. Max. memory is 11.5 GB. [2018-11-18 10:51:42,790 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-18 10:51:42,790 INFO L168 Benchmark]: Boogie Preprocessor took 48.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-18 10:51:42,791 INFO L168 Benchmark]: RCFGBuilder took 508.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 37.9 MB). Peak memory consumption was 37.9 MB. Max. memory is 11.5 GB. [2018-11-18 10:51:42,791 INFO L168 Benchmark]: TraceAbstraction took 445.84 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: 38.1 MB). Peak memory consumption was 38.1 MB. Max. memory is 11.5 GB. [2018-11-18 10:51:42,792 INFO L168 Benchmark]: Witness Printer took 4.39 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. [2018-11-18 10:51:42,795 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 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 308.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.6 MB). Free memory was 959.1 MB in the beginning and 1.2 GB in the end (delta: -202.3 MB). Peak memory consumption was 31.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 48.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 508.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 37.9 MB). Peak memory consumption was 37.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 445.84 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: 38.1 MB). Peak memory consumption was 38.1 MB. Max. memory is 11.5 GB. * Witness Printer took 4.39 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: 192]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 13, overapproximation of someUnaryDOUBLEoperation at line 102, overapproximation of bitwiseAnd at line 116, overapproximation of someUnaryFLOAToperation at line 100, overapproximation of someBinaryArithmeticFLOAToperation at line 119. Possible FailurePath: [L15] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L98-L106] static const float one_asin = 1.0000000000e+00, huge_asin = 1.000e+30, pio2_hi_asin = 1.57079637050628662109375f, pio2_lo_asin = -4.37113900018624283e-8f, pio4_hi_asin = 0.785398185253143310546875f, pS0_asin = 1.6666667163e-01, pS1_asin = -3.2556581497e-01, pS2_asin = 2.0121252537e-01, pS3_asin = -4.0055535734e-02, pS4_asin = 7.9153501429e-04, pS5_asin = 3.4793309169e-05, qS1_asin = -2.4033949375e+00, qS2_asin = 2.0209457874e+00, qS3_asin = -6.8828397989e-01, qS4_asin = 7.7038154006e-02; VAL [\old(huge_asin)=6442450966, \old(one_asin)=6442450953, \old(one_sqrt)=6442450951, \old(pio2_hi_asin)=6442450952, \old(pio2_lo_asin)=6442450961, \old(pio4_hi_asin)=6442450954, \old(pS0_asin)=6442450960, \old(pS1_asin)=6442450955, \old(pS2_asin)=6442450947, \old(pS3_asin)=6442450959, \old(pS4_asin)=6442450964, \old(pS5_asin)=6442450956, \old(qS1_asin)=6442450967, \old(qS2_asin)=6442450965, \old(qS3_asin)=6442450945, \old(qS4_asin)=6442450962, \old(tiny_sqrt)=6442450963, huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L184] float x = __VERIFIER_nondet_float(); [L186] COND TRUE x < -1.0f || x > 1.0f VAL [huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450949] [L188] CALL, EXPR __ieee754_asinf(x) VAL [\old(x)=6442450949, huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L109] float t, w, p, q, c, r, s; [L110] __int32_t hx, ix; VAL [\old(x)=6442450949, huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450949] [L112] FCALL ieee_float_shape_type gf_u; [L113] FCALL gf_u.value = (x) [L114] EXPR, FCALL gf_u.word [L114] (hx) = gf_u.word [L115] COND FALSE !(0) VAL [\old(x)=6442450949, huge_asin=1000000000000000000000000000000, hx=-2147483648, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450949] [L116] ix = hx & 0x7fffffff VAL [\old(x)=6442450949, huge_asin=1000000000000000000000000000000, hx=-2147483648, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450949] [L117] COND TRUE ix == 0x3f800000 [L119] RET return x * pio2_hi_asin + x * pio2_lo_asin; VAL [\old(x)=6442450949, huge_asin=1000000000000000000000000000000, hx=-2147483648, ix=1065353216, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450949] [L188] EXPR __ieee754_asinf(x) VAL [__ieee754_asinf(x)=6442450948, huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450949] [L188] float res = __ieee754_asinf(x); [L191] CALL, EXPR isnan_float(res) VAL [\old(x)=6442450948, huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L13] RET return x != x; VAL [\old(x)=6442450948, \result=0, huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450948] [L191] EXPR isnan_float(res) VAL [huge_asin=1000000000000000000000000000000, isnan_float(res)=0, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, res=6442450948, tiny_sqrt=1/1000000000000000000000000000000, x=6442450949] [L191] COND TRUE !isnan_float(res) [L192] __VERIFIER_error() VAL [huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, res=6442450948, tiny_sqrt=1/1000000000000000000000000000000, x=6442450949] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 80 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 98 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=80occurred 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, 45 NumberOfCodeBlocks, 45 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 0.1.23-5842f4b [2018-11-18 10:51:44,528 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 10:51:44,530 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 10:51:44,541 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 10:51:44,541 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 10:51:44,542 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 10:51:44,543 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 10:51:44,545 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 10:51:44,546 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 10:51:44,547 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 10:51:44,548 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 10:51:44,548 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 10:51:44,550 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 10:51:44,551 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 10:51:44,552 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 10:51:44,553 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 10:51:44,554 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 10:51:44,556 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 10:51:44,558 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 10:51:44,559 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 10:51:44,560 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 10:51:44,561 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 10:51:44,564 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 10:51:44,564 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 10:51:44,564 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 10:51:44,565 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 10:51:44,566 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 10:51:44,567 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 10:51:44,568 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 10:51:44,569 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 10:51:44,569 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 10:51:44,570 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 10:51:44,570 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 10:51:44,570 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 10:51:44,571 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 10:51:44,572 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 10:51:44,572 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_86bab8cc-7ab1-44c9-b0d2-dfbc788f9b51/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-18 10:51:44,586 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 10:51:44,586 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 10:51:44,587 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 10:51:44,587 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 10:51:44,587 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 10:51:44,587 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 10:51:44,587 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 10:51:44,588 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 10:51:44,588 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 10:51:44,588 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 10:51:44,589 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 10:51:44,589 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 10:51:44,589 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 10:51:44,589 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 10:51:44,590 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 10:51:44,590 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 10:51:44,590 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 10:51:44,591 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 10:51:44,591 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 10:51:44,591 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 10:51:44,591 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 10:51:44,591 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 10:51:44,591 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 10:51:44,592 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 10:51:44,592 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 10:51:44,592 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 10:51:44,592 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 10:51:44,592 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 10:51:44,593 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 10:51:44,593 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 10:51:44,593 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 10:51:44,593 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-18 10:51:44,595 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 10:51:44,595 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 10:51:44,596 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 10:51:44,596 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_86bab8cc-7ab1-44c9-b0d2-dfbc788f9b51/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 -> ea7f366bf9317f351e4b5f275a15188ee4a0efbb [2018-11-18 10:51:44,633 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 10:51:44,645 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 10:51:44,649 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 10:51:44,650 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 10:51:44,651 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 10:51:44,651 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_86bab8cc-7ab1-44c9-b0d2-dfbc788f9b51/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0281_true-unreach-call.c [2018-11-18 10:51:44,698 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_86bab8cc-7ab1-44c9-b0d2-dfbc788f9b51/bin-2019/utaipan/data/8a1de3dfd/f0451249b9a0415c984af4a200602944/FLAG450e666f5 [2018-11-18 10:51:45,059 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 10:51:45,060 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_86bab8cc-7ab1-44c9-b0d2-dfbc788f9b51/sv-benchmarks/c/float-newlib/float_req_bl_0281_true-unreach-call.c [2018-11-18 10:51:45,066 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_86bab8cc-7ab1-44c9-b0d2-dfbc788f9b51/bin-2019/utaipan/data/8a1de3dfd/f0451249b9a0415c984af4a200602944/FLAG450e666f5 [2018-11-18 10:51:45,472 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_86bab8cc-7ab1-44c9-b0d2-dfbc788f9b51/bin-2019/utaipan/data/8a1de3dfd/f0451249b9a0415c984af4a200602944 [2018-11-18 10:51:45,474 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 10:51:45,475 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 10:51:45,476 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 10:51:45,476 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 10:51:45,479 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 10:51:45,480 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:51:45" (1/1) ... [2018-11-18 10:51:45,482 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47b6a25a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:51:45, skipping insertion in model container [2018-11-18 10:51:45,482 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:51:45" (1/1) ... [2018-11-18 10:51:45,489 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 10:51:45,513 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 10:51:45,687 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:51:45,694 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 10:51:45,744 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:51:45,765 INFO L195 MainTranslator]: Completed translation [2018-11-18 10:51:45,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:51:45 WrapperNode [2018-11-18 10:51:45,766 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 10:51:45,766 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 10:51:45,767 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 10:51:45,767 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 10:51:45,773 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:51:45" (1/1) ... [2018-11-18 10:51:45,784 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:51:45" (1/1) ... [2018-11-18 10:51:45,791 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 10:51:45,792 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 10:51:45,792 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 10:51:45,792 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 10:51:45,853 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:51:45" (1/1) ... [2018-11-18 10:51:45,854 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:51:45" (1/1) ... [2018-11-18 10:51:45,858 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:51:45" (1/1) ... [2018-11-18 10:51:45,858 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:51:45" (1/1) ... [2018-11-18 10:51:45,874 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:51:45" (1/1) ... [2018-11-18 10:51:45,881 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:51:45" (1/1) ... [2018-11-18 10:51:45,884 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:51:45" (1/1) ... [2018-11-18 10:51:45,889 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 10:51:45,889 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 10:51:45,889 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 10:51:45,889 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 10:51:45,890 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:51:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86bab8cc-7ab1-44c9-b0d2-dfbc788f9b51/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 [2018-11-18 10:51:45,945 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 10:51:45,945 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 10:51:45,945 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_asinf [2018-11-18 10:51:45,945 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_asinf [2018-11-18 10:51:45,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-18 10:51:45,946 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-18 10:51:45,946 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-18 10:51:45,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 10:51:45,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 10:51:45,946 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-11-18 10:51:45,946 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-11-18 10:51:45,946 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 10:51:45,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 10:51:45,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 10:51:45,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 10:51:45,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-18 10:51:45,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 10:51:45,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 10:51:45,947 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-11-18 10:51:45,948 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-11-18 10:51:46,128 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 10:51:46,157 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 10:51:55,474 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 10:51:56,492 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 10:51:56,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:51:56 BoogieIcfgContainer [2018-11-18 10:51:56,492 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 10:51:56,493 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 10:51:56,493 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 10:51:56,495 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 10:51:56,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 10:51:45" (1/3) ... [2018-11-18 10:51:56,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76c86446 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:51:56, skipping insertion in model container [2018-11-18 10:51:56,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:51:45" (2/3) ... [2018-11-18 10:51:56,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76c86446 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:51:56, skipping insertion in model container [2018-11-18 10:51:56,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:51:56" (3/3) ... [2018-11-18 10:51:56,498 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0281_true-unreach-call.c [2018-11-18 10:51:56,504 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 10:51:56,510 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 10:51:56,519 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 10:51:56,540 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 10:51:56,540 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 10:51:56,540 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 10:51:56,540 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 10:51:56,540 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 10:51:56,541 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 10:51:56,541 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 10:51:56,541 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 10:51:56,541 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 10:51:56,553 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states. [2018-11-18 10:51:56,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-18 10:51:56,558 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:51:56,559 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:51:56,560 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:51:56,564 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:51:56,564 INFO L82 PathProgramCache]: Analyzing trace with hash 49819568, now seen corresponding path program 1 times [2018-11-18 10:51:56,567 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 10:51:56,567 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86bab8cc-7ab1-44c9-b0d2-dfbc788f9b51/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 [2018-11-18 10:51:56,571 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:51:56,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:51:56,805 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:51:56,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:51:56,820 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 10:51:56,831 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:51:56,831 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 10:51:56,833 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 10:51:56,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 10:51:56,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 10:51:56,847 INFO L87 Difference]: Start difference. First operand 79 states. Second operand 2 states. [2018-11-18 10:51:56,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:51:56,865 INFO L93 Difference]: Finished difference Result 149 states and 220 transitions. [2018-11-18 10:51:56,866 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 10:51:56,867 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-11-18 10:51:56,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:51:56,875 INFO L225 Difference]: With dead ends: 149 [2018-11-18 10:51:56,876 INFO L226 Difference]: Without dead ends: 74 [2018-11-18 10:51:56,879 INFO L604 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 [2018-11-18 10:51:56,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2018-11-18 10:51:56,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2018-11-18 10:51:56,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2018-11-18 10:51:56,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 91 transitions. [2018-11-18 10:51:56,904 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 91 transitions. Word has length 21 [2018-11-18 10:51:56,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:51:56,904 INFO L480 AbstractCegarLoop]: Abstraction has 74 states and 91 transitions. [2018-11-18 10:51:56,904 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 10:51:56,904 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 91 transitions. [2018-11-18 10:51:56,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-18 10:51:56,905 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:51:56,905 INFO L375 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] [2018-11-18 10:51:56,905 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:51:56,906 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:51:56,906 INFO L82 PathProgramCache]: Analyzing trace with hash -851231602, now seen corresponding path program 1 times [2018-11-18 10:51:56,906 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 10:51:56,906 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86bab8cc-7ab1-44c9-b0d2-dfbc788f9b51/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 [2018-11-18 10:51:56,910 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:51:57,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:51:57,100 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:51:57,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:51:57,204 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 10:51:57,214 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:51:57,214 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 10:51:57,215 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 10:51:57,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 10:51:57,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 10:51:57,215 INFO L87 Difference]: Start difference. First operand 74 states and 91 transitions. Second operand 7 states. [2018-11-18 10:52:02,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:52:02,959 INFO L93 Difference]: Finished difference Result 86 states and 102 transitions. [2018-11-18 10:52:02,960 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 10:52:02,960 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2018-11-18 10:52:02,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:52:02,962 INFO L225 Difference]: With dead ends: 86 [2018-11-18 10:52:02,962 INFO L226 Difference]: Without dead ends: 76 [2018-11-18 10:52:02,963 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-11-18 10:52:02,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-11-18 10:52:02,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 74. [2018-11-18 10:52:02,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2018-11-18 10:52:02,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 90 transitions. [2018-11-18 10:52:02,973 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 90 transitions. Word has length 22 [2018-11-18 10:52:02,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:52:02,973 INFO L480 AbstractCegarLoop]: Abstraction has 74 states and 90 transitions. [2018-11-18 10:52:02,973 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 10:52:02,973 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 90 transitions. [2018-11-18 10:52:02,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-18 10:52:02,974 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:52:02,974 INFO L375 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] [2018-11-18 10:52:02,974 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:52:02,975 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:52:02,975 INFO L82 PathProgramCache]: Analyzing trace with hash 324300594, now seen corresponding path program 1 times [2018-11-18 10:52:02,975 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 10:52:02,975 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86bab8cc-7ab1-44c9-b0d2-dfbc788f9b51/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-11-18 10:52:02,985 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:52:03,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:52:03,282 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:52:04,174 WARN L180 SmtUtils]: Spent 443.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-11-18 10:52:05,536 WARN L180 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-11-18 10:52:08,393 WARN L180 SmtUtils]: Spent 800.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-11-18 10:52:12,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:52:12,257 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 10:52:12,266 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:52:12,266 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 10:52:12,267 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 10:52:12,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 10:52:12,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 10:52:12,267 INFO L87 Difference]: Start difference. First operand 74 states and 90 transitions. Second operand 7 states. [2018-11-18 10:52:20,074 WARN L180 SmtUtils]: Spent 1.29 s on a formula simplification that was a NOOP. DAG size: 11 [2018-11-18 10:52:21,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:52:21,274 INFO L93 Difference]: Finished difference Result 81 states and 97 transitions. [2018-11-18 10:52:21,275 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 10:52:21,275 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2018-11-18 10:52:21,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:52:21,276 INFO L225 Difference]: With dead ends: 81 [2018-11-18 10:52:21,276 INFO L226 Difference]: Without dead ends: 74 [2018-11-18 10:52:21,278 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.2s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-11-18 10:52:21,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2018-11-18 10:52:21,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2018-11-18 10:52:21,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2018-11-18 10:52:21,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 89 transitions. [2018-11-18 10:52:21,287 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 89 transitions. Word has length 23 [2018-11-18 10:52:21,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:52:21,287 INFO L480 AbstractCegarLoop]: Abstraction has 74 states and 89 transitions. [2018-11-18 10:52:21,287 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 10:52:21,287 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 89 transitions. [2018-11-18 10:52:21,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 10:52:21,288 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:52:21,288 INFO L375 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] [2018-11-18 10:52:21,288 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:52:21,288 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:52:21,288 INFO L82 PathProgramCache]: Analyzing trace with hash -1134460536, now seen corresponding path program 1 times [2018-11-18 10:52:21,289 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 10:52:21,289 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86bab8cc-7ab1-44c9-b0d2-dfbc788f9b51/bin-2019/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-11-18 10:52:21,292 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:52:22,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:52:22,405 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:52:22,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:52:22,578 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 10:52:22,602 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:52:22,603 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-18 10:52:22,603 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 10:52:22,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 10:52:22,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-11-18 10:52:22,603 INFO L87 Difference]: Start difference. First operand 74 states and 89 transitions. Second operand 9 states. [2018-11-18 10:52:27,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:52:27,609 INFO L93 Difference]: Finished difference Result 92 states and 112 transitions. [2018-11-18 10:52:27,610 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 10:52:27,610 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2018-11-18 10:52:27,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:52:27,611 INFO L225 Difference]: With dead ends: 92 [2018-11-18 10:52:27,611 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 10:52:27,611 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2018-11-18 10:52:27,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 10:52:27,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 10:52:27,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 10:52:27,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 10:52:27,612 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2018-11-18 10:52:27,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:52:27,613 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 10:52:27,613 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 10:52:27,613 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 10:52:27,613 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 10:52:27,617 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 10:52:27,789 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 19 [2018-11-18 10:52:27,907 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 19 [2018-11-18 10:52:29,181 WARN L180 SmtUtils]: Spent 1.18 s on a formula simplification that was a NOOP. DAG size: 15 [2018-11-18 10:52:29,183 INFO L425 ceAbstractionStarter]: For program point isnan_floatFINAL(line 13) no Hoare annotation was computed. [2018-11-18 10:52:29,183 INFO L428 ceAbstractionStarter]: At program point isnan_floatENTRY(line 13) the Hoare annotation is: true [2018-11-18 10:52:29,183 INFO L425 ceAbstractionStarter]: For program point isnan_floatEXIT(line 13) no Hoare annotation was computed. [2018-11-18 10:52:29,183 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 10:52:29,184 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-18 10:52:29,184 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 10:52:29,184 INFO L425 ceAbstractionStarter]: For program point fabs_floatEXIT(lines 83 96) no Hoare annotation was computed. [2018-11-18 10:52:29,184 INFO L425 ceAbstractionStarter]: For program point L85-1(lines 85 89) no Hoare annotation was computed. [2018-11-18 10:52:29,184 INFO L428 ceAbstractionStarter]: At program point L85-3(lines 85 89) the Hoare annotation is: true [2018-11-18 10:52:29,184 INFO L425 ceAbstractionStarter]: For program point fabs_floatFINAL(lines 83 96) no Hoare annotation was computed. [2018-11-18 10:52:29,184 INFO L425 ceAbstractionStarter]: For program point L90(lines 90 94) no Hoare annotation was computed. [2018-11-18 10:52:29,184 INFO L425 ceAbstractionStarter]: For program point L90-2(lines 83 96) no Hoare annotation was computed. [2018-11-18 10:52:29,185 INFO L425 ceAbstractionStarter]: For program point L90-3(lines 90 94) no Hoare annotation was computed. [2018-11-18 10:52:29,185 INFO L428 ceAbstractionStarter]: At program point fabs_floatENTRY(lines 83 96) the Hoare annotation is: true [2018-11-18 10:52:29,185 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 10:52:29,185 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 10:52:29,185 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 10:52:29,185 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 10:52:29,185 INFO L425 ceAbstractionStarter]: For program point L192(line 192) no Hoare annotation was computed. [2018-11-18 10:52:29,186 INFO L421 ceAbstractionStarter]: At program point L191(line 191) the Hoare annotation is: (and (exists ((__ieee754_asinf_~x (_ FloatingPoint 8 24))) (= main_~res~0 (let ((.cse0 (fp.sub roundNearestTiesToEven __ieee754_asinf_~x __ieee754_asinf_~x))) (fp.div roundNearestTiesToEven .cse0 .cse0)))) (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (or (fp.lt main_~x~0 (fp.neg .cse1)) (fp.gt main_~x~0 .cse1)))) [2018-11-18 10:52:29,186 INFO L425 ceAbstractionStarter]: For program point L191-1(lines 191 194) no Hoare annotation was computed. [2018-11-18 10:52:29,186 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 176 198) the Hoare annotation is: true [2018-11-18 10:52:29,186 INFO L421 ceAbstractionStarter]: At program point L188(line 188) the Hoare annotation is: (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (or (fp.lt main_~x~0 (fp.neg .cse0)) (fp.gt main_~x~0 .cse0))) [2018-11-18 10:52:29,186 INFO L425 ceAbstractionStarter]: For program point L188-1(line 188) no Hoare annotation was computed. [2018-11-18 10:52:29,186 INFO L425 ceAbstractionStarter]: For program point L186(lines 186 195) no Hoare annotation was computed. [2018-11-18 10:52:29,186 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 176 198) no Hoare annotation was computed. [2018-11-18 10:52:29,187 INFO L425 ceAbstractionStarter]: For program point L186-2(lines 186 195) no Hoare annotation was computed. [2018-11-18 10:52:29,187 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 192) no Hoare annotation was computed. [2018-11-18 10:52:29,187 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 176 198) no Hoare annotation was computed. [2018-11-18 10:52:29,187 INFO L425 ceAbstractionStarter]: For program point L159(lines 159 163) no Hoare annotation was computed. [2018-11-18 10:52:29,187 INFO L425 ceAbstractionStarter]: For program point L159-2(lines 151 169) no Hoare annotation was computed. [2018-11-18 10:52:29,187 INFO L425 ceAbstractionStarter]: For program point L159-3(lines 159 163) no Hoare annotation was computed. [2018-11-18 10:52:29,187 INFO L425 ceAbstractionStarter]: For program point L122(lines 122 137) no Hoare annotation was computed. [2018-11-18 10:52:29,188 INFO L421 ceAbstractionStarter]: At program point L122-1(lines 122 137) the Hoare annotation is: (and (not (bvsgt __ieee754_asinf_~ix~2 (_ bv1065353216 32))) (= |__ieee754_asinf_#in~x| __ieee754_asinf_~x) (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|) (exists ((__ieee754_asinf_~hx~1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|) (= (bvand (_ bv2147483647 32) __ieee754_asinf_~hx~1) __ieee754_asinf_~ix~2)))) [2018-11-18 10:52:29,188 INFO L421 ceAbstractionStarter]: At program point L147(line 147) the Hoare annotation is: (and (not (bvsgt __ieee754_asinf_~ix~2 (_ bv1065353216 32))) (= |__ieee754_asinf_#in~x| __ieee754_asinf_~x) (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|) (exists ((__ieee754_asinf_~hx~1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|) (= (bvand (_ bv2147483647 32) __ieee754_asinf_~hx~1) __ieee754_asinf_~ix~2)))) [2018-11-18 10:52:29,188 INFO L425 ceAbstractionStarter]: For program point L147-1(line 147) no Hoare annotation was computed. [2018-11-18 10:52:29,188 INFO L425 ceAbstractionStarter]: For program point L139(line 139) no Hoare annotation was computed. [2018-11-18 10:52:29,188 INFO L425 ceAbstractionStarter]: For program point L123(lines 123 136) no Hoare annotation was computed. [2018-11-18 10:52:29,188 INFO L425 ceAbstractionStarter]: For program point L148(lines 148 169) no Hoare annotation was computed. [2018-11-18 10:52:29,188 INFO L425 ceAbstractionStarter]: For program point L148-2(lines 108 174) no Hoare annotation was computed. [2018-11-18 10:52:29,188 INFO L425 ceAbstractionStarter]: For program point L111-1(lines 111 115) no Hoare annotation was computed. [2018-11-18 10:52:29,189 INFO L421 ceAbstractionStarter]: At program point L111-3(lines 111 115) the Hoare annotation is: (= |__ieee754_asinf_#in~x| __ieee754_asinf_~x) [2018-11-18 10:52:29,189 INFO L425 ceAbstractionStarter]: For program point L111-4(lines 111 115) no Hoare annotation was computed. [2018-11-18 10:52:29,189 INFO L425 ceAbstractionStarter]: For program point L124(lines 124 125) no Hoare annotation was computed. [2018-11-18 10:52:29,189 INFO L425 ceAbstractionStarter]: For program point L120(lines 120 137) no Hoare annotation was computed. [2018-11-18 10:52:29,189 INFO L428 ceAbstractionStarter]: At program point __ieee754_asinfENTRY(lines 108 174) the Hoare annotation is: true [2018-11-18 10:52:29,189 INFO L425 ceAbstractionStarter]: For program point __ieee754_asinfFINAL(lines 108 174) no Hoare annotation was computed. [2018-11-18 10:52:29,189 INFO L425 ceAbstractionStarter]: For program point __ieee754_asinfEXIT(lines 108 174) no Hoare annotation was computed. [2018-11-18 10:52:29,189 INFO L425 ceAbstractionStarter]: For program point L154-1(lines 154 158) no Hoare annotation was computed. [2018-11-18 10:52:29,190 INFO L421 ceAbstractionStarter]: At program point L154-3(lines 154 158) the Hoare annotation is: (and (not (bvsgt __ieee754_asinf_~ix~2 (_ bv1065353216 32))) (= |__ieee754_asinf_#in~x| __ieee754_asinf_~x) (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|) (exists ((__ieee754_asinf_~hx~1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|) (= (bvand (_ bv2147483647 32) __ieee754_asinf_~hx~1) __ieee754_asinf_~ix~2)))) [2018-11-18 10:52:29,190 INFO L425 ceAbstractionStarter]: For program point L117(lines 117 137) no Hoare annotation was computed. [2018-11-18 10:52:29,190 INFO L425 ceAbstractionStarter]: For program point L64(lines 64 73) no Hoare annotation was computed. [2018-11-18 10:52:29,190 INFO L425 ceAbstractionStarter]: For program point L32(lines 32 33) no Hoare annotation was computed. [2018-11-18 10:52:29,190 INFO L425 ceAbstractionStarter]: For program point L53-1(lines 53 62) no Hoare annotation was computed. [2018-11-18 10:52:29,190 INFO L428 ceAbstractionStarter]: At program point L53-3(lines 53 62) the Hoare annotation is: true [2018-11-18 10:52:29,190 INFO L425 ceAbstractionStarter]: For program point L53-4(lines 17 82) no Hoare annotation was computed. [2018-11-18 10:52:29,191 INFO L428 ceAbstractionStarter]: At program point __ieee754_sqrtfENTRY(lines 17 82) the Hoare annotation is: true [2018-11-18 10:52:29,191 INFO L425 ceAbstractionStarter]: For program point L45(lines 45 46) no Hoare annotation was computed. [2018-11-18 10:52:29,191 INFO L425 ceAbstractionStarter]: For program point L45-2(lines 45 46) no Hoare annotation was computed. [2018-11-18 10:52:29,191 INFO L425 ceAbstractionStarter]: For program point __ieee754_sqrtfFINAL(lines 17 82) no Hoare annotation was computed. [2018-11-18 10:52:29,191 INFO L425 ceAbstractionStarter]: For program point L66(lines 66 72) no Hoare annotation was computed. [2018-11-18 10:52:29,191 INFO L425 ceAbstractionStarter]: For program point L29(lines 29 30) no Hoare annotation was computed. [2018-11-18 10:52:29,191 INFO L425 ceAbstractionStarter]: For program point __ieee754_sqrtfEXIT(lines 17 82) no Hoare annotation was computed. [2018-11-18 10:52:29,191 INFO L425 ceAbstractionStarter]: For program point L38(lines 38 42) no Hoare annotation was computed. [2018-11-18 10:52:29,191 INFO L425 ceAbstractionStarter]: For program point L38-2(lines 38 42) no Hoare annotation was computed. [2018-11-18 10:52:29,192 INFO L425 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2018-11-18 10:52:29,192 INFO L425 ceAbstractionStarter]: For program point L55(lines 55 59) no Hoare annotation was computed. [2018-11-18 10:52:29,192 INFO L425 ceAbstractionStarter]: For program point L22-1(lines 22 26) no Hoare annotation was computed. [2018-11-18 10:52:29,192 INFO L425 ceAbstractionStarter]: For program point L55-2(lines 55 59) no Hoare annotation was computed. [2018-11-18 10:52:29,192 INFO L428 ceAbstractionStarter]: At program point L22-3(lines 22 26) the Hoare annotation is: true [2018-11-18 10:52:29,192 INFO L425 ceAbstractionStarter]: For program point L22-4(lines 22 26) no Hoare annotation was computed. [2018-11-18 10:52:29,192 INFO L425 ceAbstractionStarter]: For program point L76-1(lines 76 80) no Hoare annotation was computed. [2018-11-18 10:52:29,192 INFO L428 ceAbstractionStarter]: At program point L76-3(lines 76 80) the Hoare annotation is: true [2018-11-18 10:52:29,192 INFO L425 ceAbstractionStarter]: For program point L76-4(lines 76 80) no Hoare annotation was computed. [2018-11-18 10:52:29,193 INFO L425 ceAbstractionStarter]: For program point L39-1(lines 39 40) no Hoare annotation was computed. [2018-11-18 10:52:29,193 INFO L425 ceAbstractionStarter]: For program point L39-3(lines 39 40) no Hoare annotation was computed. [2018-11-18 10:52:29,193 INFO L425 ceAbstractionStarter]: For program point L68(lines 68 71) no Hoare annotation was computed. [2018-11-18 10:52:29,193 INFO L428 ceAbstractionStarter]: At program point L39-4(lines 39 40) the Hoare annotation is: true [2018-11-18 10:52:29,193 INFO L425 ceAbstractionStarter]: For program point L39-5(lines 39 40) no Hoare annotation was computed. [2018-11-18 10:52:29,200 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 10:52:29,200 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 10:52:29,201 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 10:52:29,201 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 10:52:29,204 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 10:52:29,205 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 10:52:29,205 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 10:52:29,205 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 10:52:29,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 10:52:29 BoogieIcfgContainer [2018-11-18 10:52:29,207 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 10:52:29,208 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 10:52:29,208 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 10:52:29,208 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 10:52:29,208 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:51:56" (3/4) ... [2018-11-18 10:52:29,211 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 10:52:29,215 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-11-18 10:52:29,215 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 10:52:29,216 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_float [2018-11-18 10:52:29,216 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 10:52:29,216 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_asinf [2018-11-18 10:52:29,216 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_sqrtf [2018-11-18 10:52:29,220 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 54 nodes and edges [2018-11-18 10:52:29,220 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2018-11-18 10:52:29,221 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-18 10:52:29,221 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 10:52:29,238 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-18 10:52:29,239 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!~bvsgt32(ix, 1065353216bv32) && \old(x) == x) && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == \old(x)) && (\exists __ieee754_asinf_~hx~1 : bv32 :: ~fp~LONGDOUBLE(__ieee754_asinf_~hx~1[31:31], __ieee754_asinf_~hx~1[30:23], __ieee754_asinf_~hx~1[22:0]) == \old(x) && ~bvand32(2147483647bv32, __ieee754_asinf_~hx~1) == ix) [2018-11-18 10:52:29,270 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_86bab8cc-7ab1-44c9-b0d2-dfbc788f9b51/bin-2019/utaipan/witness.graphml [2018-11-18 10:52:29,271 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 10:52:29,271 INFO L168 Benchmark]: Toolchain (without parser) took 43796.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 949.2 MB in the beginning and 913.4 MB in the end (delta: 35.8 MB). Peak memory consumption was 175.8 MB. Max. memory is 11.5 GB. [2018-11-18 10:52:29,272 INFO L168 Benchmark]: CDTParser took 0.20 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. [2018-11-18 10:52:29,272 INFO L168 Benchmark]: CACSL2BoogieTranslator took 290.09 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 927.7 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-11-18 10:52:29,272 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.22 ms. Allocated memory is still 1.0 GB. Free memory is still 927.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:52:29,273 INFO L168 Benchmark]: Boogie Preprocessor took 96.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 927.7 MB in the beginning and 1.1 GB in the end (delta: -200.0 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. [2018-11-18 10:52:29,273 INFO L168 Benchmark]: RCFGBuilder took 10603.29 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: 33.0 MB). Peak memory consumption was 33.0 MB. Max. memory is 11.5 GB. [2018-11-18 10:52:29,273 INFO L168 Benchmark]: TraceAbstraction took 32714.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 920.1 MB in the end (delta: 167.9 MB). Peak memory consumption was 167.9 MB. Max. memory is 11.5 GB. [2018-11-18 10:52:29,273 INFO L168 Benchmark]: Witness Printer took 63.10 ms. Allocated memory is still 1.2 GB. Free memory was 920.1 MB in the beginning and 913.4 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-18 10:52:29,275 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 290.09 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 927.7 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.22 ms. Allocated memory is still 1.0 GB. Free memory is still 927.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 96.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 927.7 MB in the beginning and 1.1 GB in the end (delta: -200.0 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 10603.29 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: 33.0 MB). Peak memory consumption was 33.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 32714.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 920.1 MB in the end (delta: 167.9 MB). Peak memory consumption was 167.9 MB. Max. memory is 11.5 GB. * Witness Printer took 63.10 ms. Allocated memory is still 1.2 GB. Free memory was 920.1 MB in the beginning and 913.4 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 192]: 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: 76]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 154]: Loop Invariant [2018-11-18 10:52:29,279 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 10:52:29,279 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 10:52:29,279 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 10:52:29,279 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 10:52:29,279 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 10:52:29,280 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 10:52:29,280 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 10:52:29,280 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] Derived loop invariant: ((!~bvsgt32(ix, 1065353216bv32) && \old(x) == x) && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == \old(x)) && (\exists __ieee754_asinf_~hx~1 : bv32 :: ~fp~LONGDOUBLE(__ieee754_asinf_~hx~1[31:31], __ieee754_asinf_~hx~1[30:23], __ieee754_asinf_~hx~1[22:0]) == \old(x) && ~bvand32(2147483647bv32, __ieee754_asinf_~hx~1) == ix) - InvariantResult [Line: 111]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 85]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 53]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 79 locations, 1 error locations. SAFE Result, 32.6s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 19.8s AutomataDifference, 0.0s DeadEndRemovalTime, 1.5s HoareAnnotationTime, HoareTripleCheckerStatistics: 338 SDtfs, 150 SDslu, 1143 SDs, 0 SdLazy, 155 SolverSat, 23 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 15.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 95 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 11.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=79occurred 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, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 19 LocationsWithAnnotation, 36 PreInvPairs, 54 NumberOfFragments, 153 HoareAnnotationTreeSize, 36 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 19 FomulaSimplificationsInter, 99 FormulaSimplificationTreeSizeReductionInter, 1.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 9.3s InterpolantComputationTime, 91 NumberOfCodeBlocks, 91 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 87 ConstructedInterpolants, 13 QuantifiedInterpolants, 8747 SizeOfPredicates, 11 NumberOfNonLiveVariables, 421 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...