./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0260_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_c2bd4384-dfc6-4511-8fd0-f13e0eae1ee5/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c2bd4384-dfc6-4511-8fd0-f13e0eae1ee5/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c2bd4384-dfc6-4511-8fd0-f13e0eae1ee5/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c2bd4384-dfc6-4511-8fd0-f13e0eae1ee5/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0260_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_c2bd4384-dfc6-4511-8fd0-f13e0eae1ee5/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c2bd4384-dfc6-4511-8fd0-f13e0eae1ee5/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 f4df82ea580918989808f581f8b270f0b85e6120 ................................................................................................................................................................................................................................................................................................................................ 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_c2bd4384-dfc6-4511-8fd0-f13e0eae1ee5/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c2bd4384-dfc6-4511-8fd0-f13e0eae1ee5/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c2bd4384-dfc6-4511-8fd0-f13e0eae1ee5/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c2bd4384-dfc6-4511-8fd0-f13e0eae1ee5/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0260_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_c2bd4384-dfc6-4511-8fd0-f13e0eae1ee5/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c2bd4384-dfc6-4511-8fd0-f13e0eae1ee5/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 f4df82ea580918989808f581f8b270f0b85e6120 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 16:43:05,889 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 16:43:05,891 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 16:43:05,903 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 16:43:05,904 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 16:43:05,904 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 16:43:05,905 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 16:43:05,906 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 16:43:05,908 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 16:43:05,908 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 16:43:05,909 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 16:43:05,909 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 16:43:05,913 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 16:43:05,915 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 16:43:05,922 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 16:43:05,923 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 16:43:05,923 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 16:43:05,924 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 16:43:05,926 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 16:43:05,928 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 16:43:05,929 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 16:43:05,930 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 16:43:05,931 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 16:43:05,931 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 16:43:05,932 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 16:43:05,932 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 16:43:05,933 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 16:43:05,933 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 16:43:05,950 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 16:43:05,951 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 16:43:05,951 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 16:43:05,952 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 16:43:05,952 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 16:43:05,952 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 16:43:05,952 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 16:43:05,953 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 16:43:05,953 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c2bd4384-dfc6-4511-8fd0-f13e0eae1ee5/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 16:43:05,979 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 16:43:05,982 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 16:43:05,982 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 16:43:05,983 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 16:43:05,983 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 16:43:05,983 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 16:43:05,983 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 16:43:05,983 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 16:43:05,983 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 16:43:05,983 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 16:43:05,983 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 16:43:05,984 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 16:43:05,984 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 16:43:05,984 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 16:43:05,984 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 16:43:05,984 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 16:43:05,985 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 16:43:05,985 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 16:43:05,985 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 16:43:05,985 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 16:43:05,985 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 16:43:05,985 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 16:43:05,985 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 16:43:05,985 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 16:43:05,985 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 16:43:05,998 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 16:43:05,998 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 16:43:05,999 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 16:43:05,999 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 16:43:05,999 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 16:43:05,999 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 16:43:05,999 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 16:43:05,999 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 16:43:05,999 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 16:43:05,999 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 16:43:06,000 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 16:43:06,000 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 16:43:06,000 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_c2bd4384-dfc6-4511-8fd0-f13e0eae1ee5/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 -> f4df82ea580918989808f581f8b270f0b85e6120 [2018-11-18 16:43:06,056 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 16:43:06,073 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 16:43:06,076 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 16:43:06,078 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 16:43:06,078 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 16:43:06,079 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c2bd4384-dfc6-4511-8fd0-f13e0eae1ee5/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0260_true-unreach-call.c [2018-11-18 16:43:06,247 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c2bd4384-dfc6-4511-8fd0-f13e0eae1ee5/bin-2019/utaipan/data/789c78f0f/44100b76aacc42fca675e770afab7514/FLAG237334c25 [2018-11-18 16:43:06,764 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 16:43:06,765 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c2bd4384-dfc6-4511-8fd0-f13e0eae1ee5/sv-benchmarks/c/float-newlib/float_req_bl_0260_true-unreach-call.c [2018-11-18 16:43:06,771 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c2bd4384-dfc6-4511-8fd0-f13e0eae1ee5/bin-2019/utaipan/data/789c78f0f/44100b76aacc42fca675e770afab7514/FLAG237334c25 [2018-11-18 16:43:07,162 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c2bd4384-dfc6-4511-8fd0-f13e0eae1ee5/bin-2019/utaipan/data/789c78f0f/44100b76aacc42fca675e770afab7514 [2018-11-18 16:43:07,165 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 16:43:07,166 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 16:43:07,167 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 16:43:07,167 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 16:43:07,170 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 16:43:07,171 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:43:07" (1/1) ... [2018-11-18 16:43:07,173 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68df903 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:43:07, skipping insertion in model container [2018-11-18 16:43:07,173 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:43:07" (1/1) ... [2018-11-18 16:43:07,182 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 16:43:07,203 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 16:43:07,441 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:43:07,445 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 16:43:07,493 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:43:07,516 INFO L195 MainTranslator]: Completed translation [2018-11-18 16:43:07,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:43:07 WrapperNode [2018-11-18 16:43:07,516 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 16:43:07,518 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 16:43:07,518 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 16:43:07,518 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 16:43:07,525 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:43:07" (1/1) ... [2018-11-18 16:43:07,539 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:43:07" (1/1) ... [2018-11-18 16:43:07,545 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 16:43:07,637 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 16:43:07,638 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 16:43:07,638 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 16:43:07,647 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:43:07" (1/1) ... [2018-11-18 16:43:07,648 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:43:07" (1/1) ... [2018-11-18 16:43:07,651 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:43:07" (1/1) ... [2018-11-18 16:43:07,651 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:43:07" (1/1) ... [2018-11-18 16:43:07,665 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:43:07" (1/1) ... [2018-11-18 16:43:07,672 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:43:07" (1/1) ... [2018-11-18 16:43:07,674 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:43:07" (1/1) ... [2018-11-18 16:43:07,677 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 16:43:07,678 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 16:43:07,678 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 16:43:07,678 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 16:43:07,679 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:43:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c2bd4384-dfc6-4511-8fd0-f13e0eae1ee5/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 16:43:07,730 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 16:43:07,731 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 16:43:07,731 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_asinf [2018-11-18 16:43:07,731 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_asinf [2018-11-18 16:43:07,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-18 16:43:07,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 16:43:07,731 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-18 16:43:07,731 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-18 16:43:07,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 16:43:07,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 16:43:07,732 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-11-18 16:43:07,732 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-11-18 16:43:07,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-18 16:43:07,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 16:43:07,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 16:43:07,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 16:43:07,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 16:43:07,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 16:43:07,733 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-11-18 16:43:07,733 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-11-18 16:43:08,211 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 16:43:08,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:43:08 BoogieIcfgContainer [2018-11-18 16:43:08,212 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 16:43:08,213 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 16:43:08,213 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 16:43:08,216 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 16:43:08,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 04:43:07" (1/3) ... [2018-11-18 16:43:08,217 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74f5db78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:43:08, skipping insertion in model container [2018-11-18 16:43:08,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:43:07" (2/3) ... [2018-11-18 16:43:08,217 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74f5db78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:43:08, skipping insertion in model container [2018-11-18 16:43:08,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:43:08" (3/3) ... [2018-11-18 16:43:08,218 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0260_true-unreach-call.c [2018-11-18 16:43:08,224 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 16:43:08,230 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 16:43:08,240 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 16:43:08,265 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 16:43:08,265 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 16:43:08,265 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 16:43:08,265 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 16:43:08,265 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 16:43:08,266 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 16:43:08,266 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 16:43:08,266 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 16:43:08,279 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states. [2018-11-18 16:43:08,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-18 16:43:08,285 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:43:08,286 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 16:43:08,287 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:43:08,292 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:43:08,292 INFO L82 PathProgramCache]: Analyzing trace with hash 136997638, now seen corresponding path program 1 times [2018-11-18 16:43:08,294 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 16:43:08,336 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:43:08,336 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:43:08,336 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:43:08,336 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 16:43:08,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:43:08,421 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 16:43:08,422 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:43:08,423 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 16:43:08,423 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 16:43:08,427 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 16:43:08,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 16:43:08,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 16:43:08,440 INFO L87 Difference]: Start difference. First operand 78 states. Second operand 2 states. [2018-11-18 16:43:08,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:43:08,464 INFO L93 Difference]: Finished difference Result 148 states and 218 transitions. [2018-11-18 16:43:08,464 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 16:43:08,465 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-11-18 16:43:08,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:43:08,473 INFO L225 Difference]: With dead ends: 148 [2018-11-18 16:43:08,473 INFO L226 Difference]: Without dead ends: 74 [2018-11-18 16:43:08,475 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 16:43:08,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2018-11-18 16:43:08,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2018-11-18 16:43:08,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2018-11-18 16:43:08,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 91 transitions. [2018-11-18 16:43:08,503 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 91 transitions. Word has length 21 [2018-11-18 16:43:08,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:43:08,503 INFO L480 AbstractCegarLoop]: Abstraction has 74 states and 91 transitions. [2018-11-18 16:43:08,503 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 16:43:08,503 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 91 transitions. [2018-11-18 16:43:08,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-18 16:43:08,504 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:43:08,504 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 16:43:08,505 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:43:08,505 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:43:08,505 INFO L82 PathProgramCache]: Analyzing trace with hash 762446760, now seen corresponding path program 1 times [2018-11-18 16:43:08,505 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 16:43:08,508 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:43:08,508 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:43:08,508 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:43:08,508 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 16:43:08,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:43:08,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:43:08,590 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 16:43:08,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 04:43:08 BoogieIcfgContainer [2018-11-18 16:43:08,619 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 16:43:08,619 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 16:43:08,619 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 16:43:08,619 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 16:43:08,620 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:43:08" (3/4) ... [2018-11-18 16:43:08,623 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 16:43:08,623 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 16:43:08,624 INFO L168 Benchmark]: Toolchain (without parser) took 1458.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 953.1 MB in the beginning and 1.1 GB in the end (delta: -107.8 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. [2018-11-18 16:43:08,625 INFO L168 Benchmark]: CDTParser took 0.45 ms. Allocated memory is still 1.0 GB. Free memory is still 979.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:43:08,625 INFO L168 Benchmark]: CACSL2BoogieTranslator took 350.08 ms. Allocated memory is still 1.0 GB. Free memory was 953.1 MB in the beginning and 937.0 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-18 16:43:08,626 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.77 ms. Allocated memory is still 1.0 GB. Free memory was 937.0 MB in the beginning and 1.1 GB in the end (delta: -201.4 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2018-11-18 16:43:08,626 INFO L168 Benchmark]: Boogie Preprocessor took 39.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-11-18 16:43:08,626 INFO L168 Benchmark]: RCFGBuilder took 534.63 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: 39.4 MB). Peak memory consumption was 39.4 MB. Max. memory is 11.5 GB. [2018-11-18 16:43:08,627 INFO L168 Benchmark]: TraceAbstraction took 405.77 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: 27.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. [2018-11-18 16:43:08,627 INFO L168 Benchmark]: Witness Printer took 4.42 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 16:43:08,629 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45 ms. Allocated memory is still 1.0 GB. Free memory is still 979.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 350.08 ms. Allocated memory is still 1.0 GB. Free memory was 953.1 MB in the beginning and 937.0 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.77 ms. Allocated memory is still 1.0 GB. Free memory was 937.0 MB in the beginning and 1.1 GB in the end (delta: -201.4 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 39.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 534.63 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: 39.4 MB). Peak memory consumption was 39.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 405.77 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: 27.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. * Witness Printer took 4.42 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: 188]: 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)=6442450950, \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)=6442450957, \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] [L183] float x = 0.0f / 0.0f; 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] [L184] CALL, EXPR __ieee754_asinf(x) VAL [\old(x)=6442450956, 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)=6442450956, 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=6442450956] [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)=6442450956, 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=6442450956] [L116] ix = hx & 0x7fffffff VAL [\old(x)=6442450956, 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=6442450956] [L117] COND TRUE ix == 0x3f800000 [L119] RET return x * pio2_hi_asin + x * pio2_lo_asin; VAL [\old(x)=6442450956, 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=6442450956] [L184] 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=6442450956] [L184] float res = __ieee754_asinf(x); [L187] 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] [L187] 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=6442450956] [L187] COND TRUE !isnan_float(res) [L188] __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=6442450956] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 78 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 95 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=78occurred 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, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 400 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 16:43:10,344 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 16:43:10,345 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 16:43:10,354 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 16:43:10,355 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 16:43:10,356 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 16:43:10,357 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 16:43:10,358 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 16:43:10,359 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 16:43:10,360 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 16:43:10,360 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 16:43:10,360 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 16:43:10,361 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 16:43:10,363 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 16:43:10,364 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 16:43:10,364 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 16:43:10,365 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 16:43:10,367 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 16:43:10,369 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 16:43:10,370 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 16:43:10,371 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 16:43:10,372 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 16:43:10,374 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 16:43:10,374 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 16:43:10,375 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 16:43:10,375 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 16:43:10,377 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 16:43:10,377 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 16:43:10,378 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 16:43:10,379 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 16:43:10,379 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 16:43:10,380 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 16:43:10,380 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 16:43:10,380 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 16:43:10,381 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 16:43:10,381 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 16:43:10,381 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c2bd4384-dfc6-4511-8fd0-f13e0eae1ee5/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-18 16:43:10,394 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 16:43:10,394 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 16:43:10,395 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 16:43:10,395 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 16:43:10,395 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 16:43:10,395 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 16:43:10,395 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 16:43:10,395 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 16:43:10,396 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 16:43:10,396 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 16:43:10,396 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 16:43:10,396 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 16:43:10,397 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 16:43:10,397 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 16:43:10,397 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 16:43:10,397 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 16:43:10,397 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 16:43:10,397 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 16:43:10,397 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 16:43:10,398 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 16:43:10,400 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 16:43:10,400 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 16:43:10,400 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 16:43:10,400 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 16:43:10,400 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 16:43:10,400 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 16:43:10,400 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 16:43:10,401 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 16:43:10,401 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 16:43:10,401 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 16:43:10,401 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 16:43:10,401 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-18 16:43:10,401 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 16:43:10,401 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 16:43:10,402 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 16:43:10,402 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_c2bd4384-dfc6-4511-8fd0-f13e0eae1ee5/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 -> f4df82ea580918989808f581f8b270f0b85e6120 [2018-11-18 16:43:10,437 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 16:43:10,448 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 16:43:10,452 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 16:43:10,455 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 16:43:10,455 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 16:43:10,456 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c2bd4384-dfc6-4511-8fd0-f13e0eae1ee5/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0260_true-unreach-call.c [2018-11-18 16:43:10,505 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c2bd4384-dfc6-4511-8fd0-f13e0eae1ee5/bin-2019/utaipan/data/1cd86a88a/1b80f8dd831c4ba4bcc2f813b4d4c53a/FLAG6ceae66bd [2018-11-18 16:43:10,865 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 16:43:10,866 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c2bd4384-dfc6-4511-8fd0-f13e0eae1ee5/sv-benchmarks/c/float-newlib/float_req_bl_0260_true-unreach-call.c [2018-11-18 16:43:10,872 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c2bd4384-dfc6-4511-8fd0-f13e0eae1ee5/bin-2019/utaipan/data/1cd86a88a/1b80f8dd831c4ba4bcc2f813b4d4c53a/FLAG6ceae66bd [2018-11-18 16:43:11,280 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c2bd4384-dfc6-4511-8fd0-f13e0eae1ee5/bin-2019/utaipan/data/1cd86a88a/1b80f8dd831c4ba4bcc2f813b4d4c53a [2018-11-18 16:43:11,283 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 16:43:11,284 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 16:43:11,285 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 16:43:11,285 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 16:43:11,288 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 16:43:11,289 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:43:11" (1/1) ... [2018-11-18 16:43:11,291 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26edcba7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:43:11, skipping insertion in model container [2018-11-18 16:43:11,292 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:43:11" (1/1) ... [2018-11-18 16:43:11,301 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 16:43:11,323 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 16:43:11,498 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:43:11,504 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 16:43:11,552 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:43:11,577 INFO L195 MainTranslator]: Completed translation [2018-11-18 16:43:11,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:43:11 WrapperNode [2018-11-18 16:43:11,577 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 16:43:11,579 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 16:43:11,579 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 16:43:11,579 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 16:43:11,586 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:43:11" (1/1) ... [2018-11-18 16:43:11,599 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:43:11" (1/1) ... [2018-11-18 16:43:11,606 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 16:43:11,606 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 16:43:11,607 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 16:43:11,607 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 16:43:11,616 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:43:11" (1/1) ... [2018-11-18 16:43:11,616 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:43:11" (1/1) ... [2018-11-18 16:43:11,621 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:43:11" (1/1) ... [2018-11-18 16:43:11,621 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:43:11" (1/1) ... [2018-11-18 16:43:11,637 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:43:11" (1/1) ... [2018-11-18 16:43:11,645 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:43:11" (1/1) ... [2018-11-18 16:43:11,648 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:43:11" (1/1) ... [2018-11-18 16:43:11,652 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 16:43:11,652 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 16:43:11,653 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 16:43:11,653 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 16:43:11,653 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:43:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c2bd4384-dfc6-4511-8fd0-f13e0eae1ee5/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 16:43:11,738 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 16:43:11,738 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 16:43:11,739 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_asinf [2018-11-18 16:43:11,739 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_asinf [2018-11-18 16:43:11,739 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-18 16:43:11,739 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-18 16:43:11,739 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-18 16:43:11,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 16:43:11,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 16:43:11,739 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-11-18 16:43:11,739 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-11-18 16:43:11,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 16:43:11,740 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 16:43:11,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 16:43:11,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 16:43:11,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-18 16:43:11,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 16:43:11,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 16:43:11,740 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-11-18 16:43:11,740 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-11-18 16:43:21,258 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 16:43:21,296 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 16:43:21,849 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 16:43:21,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:43:21 BoogieIcfgContainer [2018-11-18 16:43:21,850 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 16:43:21,850 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 16:43:21,851 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 16:43:21,853 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 16:43:21,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 04:43:11" (1/3) ... [2018-11-18 16:43:21,853 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e8539d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:43:21, skipping insertion in model container [2018-11-18 16:43:21,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:43:11" (2/3) ... [2018-11-18 16:43:21,854 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e8539d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:43:21, skipping insertion in model container [2018-11-18 16:43:21,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:43:21" (3/3) ... [2018-11-18 16:43:21,855 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0260_true-unreach-call.c [2018-11-18 16:43:21,862 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 16:43:21,866 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 16:43:21,875 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 16:43:21,894 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 16:43:21,895 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 16:43:21,895 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 16:43:21,895 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 16:43:21,895 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 16:43:21,895 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 16:43:21,895 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 16:43:21,895 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 16:43:21,895 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 16:43:21,908 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states. [2018-11-18 16:43:21,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-18 16:43:21,914 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:43:21,915 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] [2018-11-18 16:43:21,917 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:43:21,921 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:43:21,922 INFO L82 PathProgramCache]: Analyzing trace with hash -600192542, now seen corresponding path program 1 times [2018-11-18 16:43:21,926 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 16:43:21,926 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c2bd4384-dfc6-4511-8fd0-f13e0eae1ee5/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 16:43:21,930 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:43:22,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:43:22,128 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:43:22,139 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 16:43:22,139 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 16:43:22,150 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:43:22,150 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 16:43:22,152 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 16:43:22,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 16:43:22,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 16:43:22,163 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 2 states. [2018-11-18 16:43:22,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:43:22,183 INFO L93 Difference]: Finished difference Result 146 states and 216 transitions. [2018-11-18 16:43:22,183 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 16:43:22,185 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2018-11-18 16:43:22,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:43:22,195 INFO L225 Difference]: With dead ends: 146 [2018-11-18 16:43:22,195 INFO L226 Difference]: Without dead ends: 73 [2018-11-18 16:43:22,198 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 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 16:43:22,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-11-18 16:43:22,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2018-11-18 16:43:22,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-11-18 16:43:22,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 90 transitions. [2018-11-18 16:43:22,230 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 90 transitions. Word has length 20 [2018-11-18 16:43:22,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:43:22,231 INFO L480 AbstractCegarLoop]: Abstraction has 73 states and 90 transitions. [2018-11-18 16:43:22,231 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 16:43:22,231 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 90 transitions. [2018-11-18 16:43:22,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-18 16:43:22,232 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:43:22,232 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 16:43:22,232 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:43:22,232 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:43:22,233 INFO L82 PathProgramCache]: Analyzing trace with hash 1346966301, now seen corresponding path program 1 times [2018-11-18 16:43:22,233 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 16:43:22,233 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c2bd4384-dfc6-4511-8fd0-f13e0eae1ee5/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 16:43:22,244 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:43:22,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:43:22,476 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:43:22,566 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 16:43:22,566 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 16:43:22,578 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:43:22,578 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 16:43:22,579 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 16:43:22,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 16:43:22,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 16:43:22,579 INFO L87 Difference]: Start difference. First operand 73 states and 90 transitions. Second operand 7 states. [2018-11-18 16:43:28,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:43:28,185 INFO L93 Difference]: Finished difference Result 86 states and 103 transitions. [2018-11-18 16:43:28,186 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 16:43:28,186 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2018-11-18 16:43:28,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:43:28,188 INFO L225 Difference]: With dead ends: 86 [2018-11-18 16:43:28,188 INFO L226 Difference]: Without dead ends: 76 [2018-11-18 16:43:28,189 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 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 16:43:28,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-11-18 16:43:28,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 73. [2018-11-18 16:43:28,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-11-18 16:43:28,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 89 transitions. [2018-11-18 16:43:28,196 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 89 transitions. Word has length 21 [2018-11-18 16:43:28,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:43:28,196 INFO L480 AbstractCegarLoop]: Abstraction has 73 states and 89 transitions. [2018-11-18 16:43:28,196 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 16:43:28,196 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 89 transitions. [2018-11-18 16:43:28,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-18 16:43:28,197 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:43:28,197 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 16:43:28,197 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:43:28,197 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:43:28,197 INFO L82 PathProgramCache]: Analyzing trace with hash 622695684, now seen corresponding path program 1 times [2018-11-18 16:43:28,198 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 16:43:28,198 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c2bd4384-dfc6-4511-8fd0-f13e0eae1ee5/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 16:43:28,201 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:43:28,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:43:28,421 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:43:30,575 WARN L180 SmtUtils]: Spent 466.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2018-11-18 16:43:32,513 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 16:43:32,513 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 16:43:32,522 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:43:32,522 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-18 16:43:32,523 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 16:43:32,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 16:43:32,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-18 16:43:32,523 INFO L87 Difference]: Start difference. First operand 73 states and 89 transitions. Second operand 9 states. [2018-11-18 16:43:37,207 WARN L180 SmtUtils]: Spent 1.44 s on a formula simplification that was a NOOP. DAG size: 9 [2018-11-18 16:43:44,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:43:44,413 INFO L93 Difference]: Finished difference Result 82 states and 98 transitions. [2018-11-18 16:43:44,413 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 16:43:44,413 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2018-11-18 16:43:44,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:43:44,414 INFO L225 Difference]: With dead ends: 82 [2018-11-18 16:43:44,414 INFO L226 Difference]: Without dead ends: 75 [2018-11-18 16:43:44,415 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-11-18 16:43:44,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-11-18 16:43:44,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 73. [2018-11-18 16:43:44,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-11-18 16:43:44,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 88 transitions. [2018-11-18 16:43:44,425 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 88 transitions. Word has length 22 [2018-11-18 16:43:44,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:43:44,425 INFO L480 AbstractCegarLoop]: Abstraction has 73 states and 88 transitions. [2018-11-18 16:43:44,425 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 16:43:44,425 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 88 transitions. [2018-11-18 16:43:44,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-18 16:43:44,426 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:43:44,426 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] [2018-11-18 16:43:44,427 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:43:44,427 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:43:44,427 INFO L82 PathProgramCache]: Analyzing trace with hash 50187002, now seen corresponding path program 1 times [2018-11-18 16:43:44,427 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 16:43:44,428 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c2bd4384-dfc6-4511-8fd0-f13e0eae1ee5/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 16:43:44,432 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:43:45,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:43:45,476 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:43:45,560 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 16:43:45,560 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 16:43:45,583 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:43:45,583 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 16:43:45,583 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 16:43:45,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 16:43:45,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 16:43:45,584 INFO L87 Difference]: Start difference. First operand 73 states and 88 transitions. Second operand 7 states. [2018-11-18 16:43:50,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:43:50,554 INFO L93 Difference]: Finished difference Result 86 states and 101 transitions. [2018-11-18 16:43:50,555 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 16:43:50,555 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2018-11-18 16:43:50,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:43:50,556 INFO L225 Difference]: With dead ends: 86 [2018-11-18 16:43:50,556 INFO L226 Difference]: Without dead ends: 68 [2018-11-18 16:43:50,556 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 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 16:43:50,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2018-11-18 16:43:50,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2018-11-18 16:43:50,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-11-18 16:43:50,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 80 transitions. [2018-11-18 16:43:50,564 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 80 transitions. Word has length 24 [2018-11-18 16:43:50,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:43:50,564 INFO L480 AbstractCegarLoop]: Abstraction has 68 states and 80 transitions. [2018-11-18 16:43:50,564 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 16:43:50,564 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 80 transitions. [2018-11-18 16:43:50,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-11-18 16:43:50,565 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:43:50,565 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:43:50,565 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:43:50,566 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:43:50,566 INFO L82 PathProgramCache]: Analyzing trace with hash 836264115, now seen corresponding path program 1 times [2018-11-18 16:43:50,566 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 16:43:50,566 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c2bd4384-dfc6-4511-8fd0-f13e0eae1ee5/bin-2019/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-11-18 16:43:50,576 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:43:51,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:43:51,773 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:43:51,867 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 16:43:51,867 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 16:43:51,886 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:43:51,886 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 16:43:51,887 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 16:43:51,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 16:43:51,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 16:43:51,887 INFO L87 Difference]: Start difference. First operand 68 states and 80 transitions. Second operand 7 states. [2018-11-18 16:43:54,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:43:54,266 INFO L93 Difference]: Finished difference Result 68 states and 80 transitions. [2018-11-18 16:43:54,267 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 16:43:54,267 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 44 [2018-11-18 16:43:54,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:43:54,268 INFO L225 Difference]: With dead ends: 68 [2018-11-18 16:43:54,268 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 16:43:54,268 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 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 16:43:54,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 16:43:54,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 16:43:54,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 16:43:54,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 16:43:54,269 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 44 [2018-11-18 16:43:54,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:43:54,269 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 16:43:54,269 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 16:43:54,269 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 16:43:54,269 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 16:43:54,272 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 16:43:54,443 INFO L425 ceAbstractionStarter]: For program point isnan_floatFINAL(line 13) no Hoare annotation was computed. [2018-11-18 16:43:54,443 INFO L428 ceAbstractionStarter]: At program point isnan_floatENTRY(line 13) the Hoare annotation is: true [2018-11-18 16:43:54,443 INFO L425 ceAbstractionStarter]: For program point isnan_floatEXIT(line 13) no Hoare annotation was computed. [2018-11-18 16:43:54,443 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 16:43:54,443 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-18 16:43:54,443 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 16:43:54,444 INFO L425 ceAbstractionStarter]: For program point fabs_floatEXIT(lines 83 96) no Hoare annotation was computed. [2018-11-18 16:43:54,444 INFO L425 ceAbstractionStarter]: For program point L85-1(lines 85 89) no Hoare annotation was computed. [2018-11-18 16:43:54,444 INFO L428 ceAbstractionStarter]: At program point L85-3(lines 85 89) the Hoare annotation is: true [2018-11-18 16:43:54,444 INFO L425 ceAbstractionStarter]: For program point fabs_floatFINAL(lines 83 96) no Hoare annotation was computed. [2018-11-18 16:43:54,444 INFO L425 ceAbstractionStarter]: For program point L90(lines 90 94) no Hoare annotation was computed. [2018-11-18 16:43:54,444 INFO L425 ceAbstractionStarter]: For program point L90-2(lines 83 96) no Hoare annotation was computed. [2018-11-18 16:43:54,444 INFO L425 ceAbstractionStarter]: For program point L90-3(lines 90 94) no Hoare annotation was computed. [2018-11-18 16:43:54,444 INFO L428 ceAbstractionStarter]: At program point fabs_floatENTRY(lines 83 96) the Hoare annotation is: true [2018-11-18 16:43:54,444 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 16:43:54,445 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 16:43:54,445 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 16:43:54,445 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 16:43:54,445 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 176 193) the Hoare annotation is: true [2018-11-18 16:43:54,445 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 176 193) no Hoare annotation was computed. [2018-11-18 16:43:54,445 INFO L425 ceAbstractionStarter]: For program point L188(line 188) no Hoare annotation was computed. [2018-11-18 16:43:54,445 INFO L421 ceAbstractionStarter]: At program point L187(line 187) the Hoare annotation is: (let ((.cse1 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= main_~res~0 (let ((.cse0 (fp.sub roundNearestTiesToEven .cse1 .cse1))) (fp.div roundNearestTiesToEven .cse0 .cse0))) (= main_~x~0 .cse1))) [2018-11-18 16:43:54,445 INFO L425 ceAbstractionStarter]: For program point L187-1(lines 187 190) no Hoare annotation was computed. [2018-11-18 16:43:54,446 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 188) no Hoare annotation was computed. [2018-11-18 16:43:54,446 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 176 193) no Hoare annotation was computed. [2018-11-18 16:43:54,446 INFO L421 ceAbstractionStarter]: At program point L184(line 184) the Hoare annotation is: (= main_~x~0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))) [2018-11-18 16:43:54,446 INFO L425 ceAbstractionStarter]: For program point L184-1(line 184) no Hoare annotation was computed. [2018-11-18 16:43:54,446 INFO L425 ceAbstractionStarter]: For program point L159(lines 159 163) no Hoare annotation was computed. [2018-11-18 16:43:54,446 INFO L425 ceAbstractionStarter]: For program point L159-2(lines 151 169) no Hoare annotation was computed. [2018-11-18 16:43:54,446 INFO L425 ceAbstractionStarter]: For program point L159-3(lines 159 163) no Hoare annotation was computed. [2018-11-18 16:43:54,446 INFO L425 ceAbstractionStarter]: For program point L122(lines 122 137) no Hoare annotation was computed. [2018-11-18 16:43:54,447 INFO L421 ceAbstractionStarter]: At program point L122-1(lines 122 137) the Hoare annotation is: (and (= |__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 (not (bvsgt (bvand (_ bv2147483647 32) __ieee754_asinf_~hx~1) (_ bv1065353216 32))) (= (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 16:43:54,447 INFO L421 ceAbstractionStarter]: At program point L147(line 147) the Hoare annotation is: (and (= |__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 (not (bvsgt (bvand (_ bv2147483647 32) __ieee754_asinf_~hx~1) (_ bv1065353216 32))) (= (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 16:43:54,447 INFO L425 ceAbstractionStarter]: For program point L147-1(line 147) no Hoare annotation was computed. [2018-11-18 16:43:54,447 INFO L425 ceAbstractionStarter]: For program point L139(line 139) no Hoare annotation was computed. [2018-11-18 16:43:54,447 INFO L425 ceAbstractionStarter]: For program point L123(lines 123 136) no Hoare annotation was computed. [2018-11-18 16:43:54,447 INFO L425 ceAbstractionStarter]: For program point L148(lines 148 169) no Hoare annotation was computed. [2018-11-18 16:43:54,447 INFO L425 ceAbstractionStarter]: For program point L148-2(lines 108 174) no Hoare annotation was computed. [2018-11-18 16:43:54,448 INFO L425 ceAbstractionStarter]: For program point L111-1(lines 111 115) no Hoare annotation was computed. [2018-11-18 16:43:54,448 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 16:43:54,448 INFO L425 ceAbstractionStarter]: For program point L111-4(lines 111 115) no Hoare annotation was computed. [2018-11-18 16:43:54,448 INFO L425 ceAbstractionStarter]: For program point L124(lines 124 125) no Hoare annotation was computed. [2018-11-18 16:43:54,448 INFO L425 ceAbstractionStarter]: For program point L120(lines 120 137) no Hoare annotation was computed. [2018-11-18 16:43:54,448 INFO L428 ceAbstractionStarter]: At program point __ieee754_asinfENTRY(lines 108 174) the Hoare annotation is: true [2018-11-18 16:43:54,448 INFO L425 ceAbstractionStarter]: For program point __ieee754_asinfFINAL(lines 108 174) no Hoare annotation was computed. [2018-11-18 16:43:54,448 INFO L425 ceAbstractionStarter]: For program point __ieee754_asinfEXIT(lines 108 174) no Hoare annotation was computed. [2018-11-18 16:43:54,448 INFO L425 ceAbstractionStarter]: For program point L154-1(lines 154 158) no Hoare annotation was computed. [2018-11-18 16:43:54,449 INFO L421 ceAbstractionStarter]: At program point L154-3(lines 154 158) the Hoare annotation is: (and (= |__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 (not (bvsgt (bvand (_ bv2147483647 32) __ieee754_asinf_~hx~1) (_ bv1065353216 32))) (= (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 16:43:54,449 INFO L425 ceAbstractionStarter]: For program point L117(lines 117 137) no Hoare annotation was computed. [2018-11-18 16:43:54,449 INFO L425 ceAbstractionStarter]: For program point L64(lines 64 73) no Hoare annotation was computed. [2018-11-18 16:43:54,449 INFO L425 ceAbstractionStarter]: For program point L32(lines 32 33) no Hoare annotation was computed. [2018-11-18 16:43:54,449 INFO L425 ceAbstractionStarter]: For program point L53-1(lines 53 62) no Hoare annotation was computed. [2018-11-18 16:43:54,449 INFO L428 ceAbstractionStarter]: At program point L53-3(lines 53 62) the Hoare annotation is: true [2018-11-18 16:43:54,449 INFO L425 ceAbstractionStarter]: For program point L53-4(lines 17 82) no Hoare annotation was computed. [2018-11-18 16:43:54,449 INFO L428 ceAbstractionStarter]: At program point __ieee754_sqrtfENTRY(lines 17 82) the Hoare annotation is: true [2018-11-18 16:43:54,450 INFO L425 ceAbstractionStarter]: For program point L45(lines 45 46) no Hoare annotation was computed. [2018-11-18 16:43:54,450 INFO L425 ceAbstractionStarter]: For program point L45-2(lines 45 46) no Hoare annotation was computed. [2018-11-18 16:43:54,450 INFO L425 ceAbstractionStarter]: For program point __ieee754_sqrtfFINAL(lines 17 82) no Hoare annotation was computed. [2018-11-18 16:43:54,450 INFO L425 ceAbstractionStarter]: For program point L66(lines 66 72) no Hoare annotation was computed. [2018-11-18 16:43:54,450 INFO L425 ceAbstractionStarter]: For program point L29(lines 29 30) no Hoare annotation was computed. [2018-11-18 16:43:54,450 INFO L425 ceAbstractionStarter]: For program point __ieee754_sqrtfEXIT(lines 17 82) no Hoare annotation was computed. [2018-11-18 16:43:54,450 INFO L425 ceAbstractionStarter]: For program point L38(lines 38 42) no Hoare annotation was computed. [2018-11-18 16:43:54,450 INFO L425 ceAbstractionStarter]: For program point L38-2(lines 38 42) no Hoare annotation was computed. [2018-11-18 16:43:54,450 INFO L425 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2018-11-18 16:43:54,450 INFO L425 ceAbstractionStarter]: For program point L55(lines 55 59) no Hoare annotation was computed. [2018-11-18 16:43:54,451 INFO L425 ceAbstractionStarter]: For program point L22-1(lines 22 26) no Hoare annotation was computed. [2018-11-18 16:43:54,451 INFO L425 ceAbstractionStarter]: For program point L55-2(lines 55 59) no Hoare annotation was computed. [2018-11-18 16:43:54,451 INFO L428 ceAbstractionStarter]: At program point L22-3(lines 22 26) the Hoare annotation is: true [2018-11-18 16:43:54,451 INFO L425 ceAbstractionStarter]: For program point L22-4(lines 22 26) no Hoare annotation was computed. [2018-11-18 16:43:54,451 INFO L425 ceAbstractionStarter]: For program point L76-1(lines 76 80) no Hoare annotation was computed. [2018-11-18 16:43:54,451 INFO L428 ceAbstractionStarter]: At program point L76-3(lines 76 80) the Hoare annotation is: true [2018-11-18 16:43:54,451 INFO L425 ceAbstractionStarter]: For program point L76-4(lines 76 80) no Hoare annotation was computed. [2018-11-18 16:43:54,451 INFO L425 ceAbstractionStarter]: For program point L39-1(lines 39 40) no Hoare annotation was computed. [2018-11-18 16:43:54,451 INFO L425 ceAbstractionStarter]: For program point L39-3(lines 39 40) no Hoare annotation was computed. [2018-11-18 16:43:54,451 INFO L425 ceAbstractionStarter]: For program point L68(lines 68 71) no Hoare annotation was computed. [2018-11-18 16:43:54,452 INFO L428 ceAbstractionStarter]: At program point L39-4(lines 39 40) the Hoare annotation is: true [2018-11-18 16:43:54,452 INFO L425 ceAbstractionStarter]: For program point L39-5(lines 39 40) no Hoare annotation was computed. [2018-11-18 16:43:54,457 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 16:43:54,458 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 16:43:54,458 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 16:43:54,458 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 16:43:54,459 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 16:43:54,459 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 16:43:54,459 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 16:43:54,459 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 16:43:54,462 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 16:43:54,462 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 16:43:54,463 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 16:43:54,463 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 16:43:54,463 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 16:43:54,463 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 16:43:54,463 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 16:43:54,463 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 16:43:54,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 04:43:54 BoogieIcfgContainer [2018-11-18 16:43:54,465 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 16:43:54,466 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 16:43:54,466 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 16:43:54,466 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 16:43:54,466 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:43:21" (3/4) ... [2018-11-18 16:43:54,468 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 16:43:54,472 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-11-18 16:43:54,472 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 16:43:54,472 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_float [2018-11-18 16:43:54,473 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 16:43:54,473 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_asinf [2018-11-18 16:43:54,473 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_sqrtf [2018-11-18 16:43:54,476 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 54 nodes and edges [2018-11-18 16:43:54,477 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2018-11-18 16:43:54,477 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-18 16:43:54,477 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 16:43:54,493 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-18 16:43:54,494 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\old(x) == x && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == \old(x)) && (\exists __ieee754_asinf_~hx~1 : bv32 :: !~bvsgt32(~bvand32(2147483647bv32, __ieee754_asinf_~hx~1), 1065353216bv32) && ~fp~LONGDOUBLE(__ieee754_asinf_~hx~1[31:31], __ieee754_asinf_~hx~1[30:23], __ieee754_asinf_~hx~1[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 16:43:54,522 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_c2bd4384-dfc6-4511-8fd0-f13e0eae1ee5/bin-2019/utaipan/witness.graphml [2018-11-18 16:43:54,522 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 16:43:54,522 INFO L168 Benchmark]: Toolchain (without parser) took 43239.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 943.8 MB in the beginning and 864.5 MB in the end (delta: 79.4 MB). Peak memory consumption was 210.4 MB. Max. memory is 11.5 GB. [2018-11-18 16:43:54,523 INFO L168 Benchmark]: CDTParser took 0.42 ms. Allocated memory is still 1.0 GB. Free memory is still 973.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:43:54,523 INFO L168 Benchmark]: CACSL2BoogieTranslator took 293.07 ms. Allocated memory is still 1.0 GB. Free memory was 943.8 MB in the beginning and 922.4 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-11-18 16:43:54,523 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.75 ms. Allocated memory is still 1.0 GB. Free memory is still 922.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:43:54,524 INFO L168 Benchmark]: Boogie Preprocessor took 45.75 ms. Allocated memory is still 1.0 GB. Free memory is still 922.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:43:54,524 INFO L168 Benchmark]: RCFGBuilder took 10197.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 922.4 MB in the beginning and 1.1 GB in the end (delta: -152.1 MB). Peak memory consumption was 16.3 MB. Max. memory is 11.5 GB. [2018-11-18 16:43:54,524 INFO L168 Benchmark]: TraceAbstraction took 32615.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 871.1 MB in the end (delta: 203.4 MB). Peak memory consumption was 203.4 MB. Max. memory is 11.5 GB. [2018-11-18 16:43:54,524 INFO L168 Benchmark]: Witness Printer took 56.21 ms. Allocated memory is still 1.2 GB. Free memory was 871.1 MB in the beginning and 864.5 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-11-18 16:43:54,525 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42 ms. Allocated memory is still 1.0 GB. Free memory is still 973.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 293.07 ms. Allocated memory is still 1.0 GB. Free memory was 943.8 MB in the beginning and 922.4 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 27.75 ms. Allocated memory is still 1.0 GB. Free memory is still 922.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 45.75 ms. Allocated memory is still 1.0 GB. Free memory is still 922.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 10197.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 922.4 MB in the beginning and 1.1 GB in the end (delta: -152.1 MB). Peak memory consumption was 16.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 32615.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 871.1 MB in the end (delta: 203.4 MB). Peak memory consumption was 203.4 MB. Max. memory is 11.5 GB. * Witness Printer took 56.21 ms. Allocated memory is still 1.2 GB. Free memory was 871.1 MB in the beginning and 864.5 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 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] - 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: 188]: 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 16:43:54,531 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 16:43:54,531 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 16:43:54,531 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 16:43:54,531 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 16:43:54,531 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 16:43:54,531 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 16:43:54,531 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 16:43:54,531 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 16:43:54,532 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 16:43:54,532 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 16:43:54,532 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 16:43:54,532 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 16:43:54,532 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 16:43:54,532 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 16:43:54,533 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 16:43:54,533 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] Derived loop invariant: ((\old(x) == x && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == \old(x)) && (\exists __ieee754_asinf_~hx~1 : bv32 :: !~bvsgt32(~bvand32(2147483647bv32, __ieee754_asinf_~hx~1), 1065353216bv32) && ~fp~LONGDOUBLE(__ieee754_asinf_~hx~1[31:31], __ieee754_asinf_~hx~1[30:23], __ieee754_asinf_~hx~1[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, 77 locations, 1 error locations. SAFE Result, 32.5s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 24.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 390 SDtfs, 198 SDslu, 1473 SDs, 0 SdLazy, 186 SolverSat, 23 SolverUnsat, 6 SolverUnknown, 0 SolverNotchecked, 19.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 139 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 8.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=77occurred 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, 5 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 19 LocationsWithAnnotation, 30 PreInvPairs, 40 NumberOfFragments, 191 HoareAnnotationTreeSize, 30 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 19 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 2.6s SatisfiabilityAnalysisTime, 4.5s InterpolantComputationTime, 131 NumberOfCodeBlocks, 131 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 126 ConstructedInterpolants, 20 QuantifiedInterpolants, 18681 SizeOfPredicates, 16 NumberOfNonLiveVariables, 579 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...