./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1071_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_a075811b-be00-495f-a1ff-341dcda974a9/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a075811b-be00-495f-a1ff-341dcda974a9/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a075811b-be00-495f-a1ff-341dcda974a9/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a075811b-be00-495f-a1ff-341dcda974a9/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1071_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_a075811b-be00-495f-a1ff-341dcda974a9/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a075811b-be00-495f-a1ff-341dcda974a9/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 cbf38875841624eee0d839935b3b6d34a59b0b20 ....................................................................................................................................................................................................................................................................................................................... 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_a075811b-be00-495f-a1ff-341dcda974a9/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a075811b-be00-495f-a1ff-341dcda974a9/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a075811b-be00-495f-a1ff-341dcda974a9/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a075811b-be00-495f-a1ff-341dcda974a9/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1071_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_a075811b-be00-495f-a1ff-341dcda974a9/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a075811b-be00-495f-a1ff-341dcda974a9/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 cbf38875841624eee0d839935b3b6d34a59b0b20 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 19:21:45,838 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 19:21:45,839 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 19:21:45,846 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 19:21:45,847 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 19:21:45,847 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 19:21:45,848 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 19:21:45,849 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 19:21:45,850 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 19:21:45,851 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 19:21:45,851 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 19:21:45,852 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 19:21:45,852 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 19:21:45,853 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 19:21:45,854 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 19:21:45,854 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 19:21:45,855 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 19:21:45,856 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 19:21:45,858 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 19:21:45,859 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 19:21:45,859 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 19:21:45,860 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 19:21:45,862 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 19:21:45,862 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 19:21:45,862 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 19:21:45,863 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 19:21:45,864 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 19:21:45,864 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 19:21:45,865 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 19:21:45,865 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 19:21:45,866 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 19:21:45,866 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 19:21:45,866 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 19:21:45,866 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 19:21:45,867 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 19:21:45,867 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 19:21:45,868 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a075811b-be00-495f-a1ff-341dcda974a9/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 19:21:45,878 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 19:21:45,878 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 19:21:45,879 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 19:21:45,879 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 19:21:45,879 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 19:21:45,879 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 19:21:45,880 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 19:21:45,880 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 19:21:45,880 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 19:21:45,880 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 19:21:45,880 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 19:21:45,880 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 19:21:45,880 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 19:21:45,881 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 19:21:45,881 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 19:21:45,881 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 19:21:45,881 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 19:21:45,881 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 19:21:45,881 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 19:21:45,881 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 19:21:45,881 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 19:21:45,882 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 19:21:45,882 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 19:21:45,882 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 19:21:45,882 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 19:21:45,882 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 19:21:45,882 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 19:21:45,882 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 19:21:45,882 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 19:21:45,882 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 19:21:45,883 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 19:21:45,883 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 19:21:45,883 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 19:21:45,883 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 19:21:45,883 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 19:21:45,883 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 19:21:45,883 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_a075811b-be00-495f-a1ff-341dcda974a9/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 -> cbf38875841624eee0d839935b3b6d34a59b0b20 [2018-12-09 19:21:45,904 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 19:21:45,911 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 19:21:45,913 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 19:21:45,914 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 19:21:45,914 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 19:21:45,914 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a075811b-be00-495f-a1ff-341dcda974a9/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1071_true-unreach-call.c [2018-12-09 19:21:45,949 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a075811b-be00-495f-a1ff-341dcda974a9/bin-2019/utaipan/data/1ccbda364/d346b0a625a042aeb4286e95f1a4a4c1/FLAG4728190a7 [2018-12-09 19:21:46,336 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 19:21:46,337 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a075811b-be00-495f-a1ff-341dcda974a9/sv-benchmarks/c/float-newlib/float_req_bl_1071_true-unreach-call.c [2018-12-09 19:21:46,340 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a075811b-be00-495f-a1ff-341dcda974a9/bin-2019/utaipan/data/1ccbda364/d346b0a625a042aeb4286e95f1a4a4c1/FLAG4728190a7 [2018-12-09 19:21:46,348 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a075811b-be00-495f-a1ff-341dcda974a9/bin-2019/utaipan/data/1ccbda364/d346b0a625a042aeb4286e95f1a4a4c1 [2018-12-09 19:21:46,350 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 19:21:46,351 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 19:21:46,351 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 19:21:46,351 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 19:21:46,353 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 19:21:46,354 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:21:46" (1/1) ... [2018-12-09 19:21:46,355 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@706fcb08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:21:46, skipping insertion in model container [2018-12-09 19:21:46,355 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:21:46" (1/1) ... [2018-12-09 19:21:46,359 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 19:21:46,369 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 19:21:46,460 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:21:46,462 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 19:21:46,476 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:21:46,488 INFO L195 MainTranslator]: Completed translation [2018-12-09 19:21:46,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:21:46 WrapperNode [2018-12-09 19:21:46,489 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 19:21:46,489 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 19:21:46,489 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 19:21:46,489 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 19:21:46,494 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:21:46" (1/1) ... [2018-12-09 19:21:46,499 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:21:46" (1/1) ... [2018-12-09 19:21:46,503 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 19:21:46,503 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 19:21:46,503 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 19:21:46,503 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 19:21:46,541 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:21:46" (1/1) ... [2018-12-09 19:21:46,541 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:21:46" (1/1) ... [2018-12-09 19:21:46,543 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:21:46" (1/1) ... [2018-12-09 19:21:46,543 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:21:46" (1/1) ... [2018-12-09 19:21:46,549 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:21:46" (1/1) ... [2018-12-09 19:21:46,552 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:21:46" (1/1) ... [2018-12-09 19:21:46,553 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:21:46" (1/1) ... [2018-12-09 19:21:46,554 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 19:21:46,554 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 19:21:46,554 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 19:21:46,554 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 19:21:46,555 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:21:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a075811b-be00-495f-a1ff-341dcda974a9/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 [2018-12-09 19:21:46,587 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-12-09 19:21:46,587 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-12-09 19:21:46,587 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-09 19:21:46,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-09 19:21:46,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 19:21:46,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 19:21:46,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-09 19:21:46,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 19:21:46,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 19:21:46,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 19:21:46,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-09 19:21:46,588 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 19:21:46,588 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 19:21:46,588 INFO L130 BoogieDeclarations]: Found specification of procedure trunc_float [2018-12-09 19:21:46,588 INFO L138 BoogieDeclarations]: Found implementation of procedure trunc_float [2018-12-09 19:21:46,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 19:21:46,716 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 19:21:46,717 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-09 19:21:46,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:21:46 BoogieIcfgContainer [2018-12-09 19:21:46,717 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 19:21:46,717 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 19:21:46,717 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 19:21:46,719 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 19:21:46,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 07:21:46" (1/3) ... [2018-12-09 19:21:46,720 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3421e11c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:21:46, skipping insertion in model container [2018-12-09 19:21:46,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:21:46" (2/3) ... [2018-12-09 19:21:46,720 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3421e11c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:21:46, skipping insertion in model container [2018-12-09 19:21:46,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:21:46" (3/3) ... [2018-12-09 19:21:46,721 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1071_true-unreach-call.c [2018-12-09 19:21:46,726 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 19:21:46,730 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 19:21:46,738 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 19:21:46,757 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 19:21:46,757 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 19:21:46,757 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 19:21:46,757 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 19:21:46,757 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 19:21:46,757 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 19:21:46,757 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 19:21:46,757 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 19:21:46,767 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2018-12-09 19:21:46,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-09 19:21:46,770 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:21:46,771 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:21:46,772 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:21:46,775 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:21:46,775 INFO L82 PathProgramCache]: Analyzing trace with hash 846806543, now seen corresponding path program 1 times [2018-12-09 19:21:46,777 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:21:46,803 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:46,804 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:21:46,804 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:46,804 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:21:46,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:21:46,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:21:46,848 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:21:46,848 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 19:21:46,849 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:21:46,851 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 19:21:46,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 19:21:46,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 19:21:46,860 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2018-12-09 19:21:46,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:21:46,871 INFO L93 Difference]: Finished difference Result 60 states and 78 transitions. [2018-12-09 19:21:46,871 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 19:21:46,872 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-12-09 19:21:46,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:21:46,877 INFO L225 Difference]: With dead ends: 60 [2018-12-09 19:21:46,877 INFO L226 Difference]: Without dead ends: 30 [2018-12-09 19:21:46,879 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 19:21:46,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-12-09 19:21:46,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2018-12-09 19:21:46,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-12-09 19:21:46,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 32 transitions. [2018-12-09 19:21:46,900 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 32 transitions. Word has length 22 [2018-12-09 19:21:46,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:21:46,900 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 32 transitions. [2018-12-09 19:21:46,900 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 19:21:46,901 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2018-12-09 19:21:46,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-09 19:21:46,901 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:21:46,901 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:21:46,901 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:21:46,901 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:21:46,902 INFO L82 PathProgramCache]: Analyzing trace with hash -1446285465, now seen corresponding path program 1 times [2018-12-09 19:21:46,902 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:21:46,902 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:46,902 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:21:46,902 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:46,902 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:21:46,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 19:21:46,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 19:21:46,956 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 19:21:46,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 07:21:46 BoogieIcfgContainer [2018-12-09 19:21:46,973 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 19:21:46,973 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 19:21:46,973 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 19:21:46,973 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 19:21:46,973 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:21:46" (3/4) ... [2018-12-09 19:21:46,975 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-09 19:21:46,975 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 19:21:46,976 INFO L168 Benchmark]: Toolchain (without parser) took 625.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -122.5 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-09 19:21:46,977 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:21:46,977 INFO L168 Benchmark]: CACSL2BoogieTranslator took 137.73 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 940.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-09 19:21:46,977 INFO L168 Benchmark]: Boogie Procedure Inliner took 14.25 ms. Allocated memory is still 1.0 GB. Free memory was 940.0 MB in the beginning and 937.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-09 19:21:46,978 INFO L168 Benchmark]: Boogie Preprocessor took 50.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 937.3 MB in the beginning and 1.1 GB in the end (delta: -190.6 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. [2018-12-09 19:21:46,978 INFO L168 Benchmark]: RCFGBuilder took 162.63 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: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. [2018-12-09 19:21:46,978 INFO L168 Benchmark]: TraceAbstraction took 255.41 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: 32.7 MB). Peak memory consumption was 32.7 MB. Max. memory is 11.5 GB. [2018-12-09 19:21:46,979 INFO L168 Benchmark]: Witness Printer took 2.64 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-12-09 19:21:46,981 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 137.73 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 940.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 14.25 ms. Allocated memory is still 1.0 GB. Free memory was 940.0 MB in the beginning and 937.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 50.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 937.3 MB in the beginning and 1.1 GB in the end (delta: -190.6 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 162.63 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: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 255.41 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: 32.7 MB). Peak memory consumption was 32.7 MB. Max. memory is 11.5 GB. * Witness Printer took 2.64 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 57]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 44, overapproximation of someBinaryArithmeticFLOAToperation at line 38, overapproximation of bitwiseAnd at line 19. Possible FailurePath: [L52] float x = 0.0f / 0.0f; [L53] CALL, EXPR trunc_float(x) VAL [\old(x)=6442450948] [L13] __int32_t signbit, w, exponent_less_127; VAL [\old(x)=6442450948, x=6442450948] [L15] ieee_float_shape_type gf_u; [L16] gf_u.value = (x) [L17] EXPR gf_u.word [L17] (w) = gf_u.word [L19] signbit = w & 0x80000000 [L20] exponent_less_127 = ((w & 0x7f800000) >> 23) - 127 VAL [\old(x)=6442450948, exponent_less_127=255, signbit=-1, w=-2147483648, x=6442450948] [L21] COND FALSE !(exponent_less_127 < 23) VAL [\old(x)=6442450948, exponent_less_127=255, signbit=-1, w=-2147483648, x=6442450948] [L37] COND TRUE exponent_less_127 == 255 [L38] return x + x; VAL [\old(x)=6442450948, exponent_less_127=255, signbit=-1, w=-2147483648, x=6442450948] [L53] RET, EXPR trunc_float(x) VAL [trunc_float(x)=6442450946, x=6442450948] [L53] float res = trunc_float(x); [L56] CALL, EXPR isnan_float(res) VAL [\old(x)=6442450946] [L44] return x != x; VAL [\old(x)=6442450946, \result=0, x=6442450946] [L56] RET, EXPR isnan_float(res) VAL [isnan_float(res)=0, res=6442450946, x=6442450948] [L56] COND TRUE !isnan_float(res) [L57] __VERIFIER_error() VAL [res=6442450946, x=6442450948] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 34 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 36 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=34occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 441 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-635dfa2 [2018-12-09 19:21:48,244 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 19:21:48,245 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 19:21:48,251 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 19:21:48,251 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 19:21:48,252 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 19:21:48,252 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 19:21:48,253 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 19:21:48,254 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 19:21:48,254 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 19:21:48,254 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 19:21:48,255 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 19:21:48,255 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 19:21:48,255 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 19:21:48,256 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 19:21:48,256 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 19:21:48,257 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 19:21:48,257 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 19:21:48,258 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 19:21:48,259 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 19:21:48,260 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 19:21:48,260 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 19:21:48,261 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 19:21:48,261 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 19:21:48,261 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 19:21:48,262 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 19:21:48,262 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 19:21:48,263 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 19:21:48,263 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 19:21:48,264 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 19:21:48,264 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 19:21:48,264 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 19:21:48,264 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 19:21:48,264 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 19:21:48,265 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 19:21:48,265 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 19:21:48,265 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a075811b-be00-495f-a1ff-341dcda974a9/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-09 19:21:48,272 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 19:21:48,272 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 19:21:48,273 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 19:21:48,273 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 19:21:48,273 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 19:21:48,273 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 19:21:48,273 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 19:21:48,273 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 19:21:48,273 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 19:21:48,273 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 19:21:48,274 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 19:21:48,274 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 19:21:48,274 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 19:21:48,274 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 19:21:48,274 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 19:21:48,274 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 19:21:48,274 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 19:21:48,274 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-09 19:21:48,275 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-09 19:21:48,275 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 19:21:48,275 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 19:21:48,275 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 19:21:48,275 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 19:21:48,275 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 19:21:48,275 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 19:21:48,275 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 19:21:48,275 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 19:21:48,275 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 19:21:48,275 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 19:21:48,276 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 19:21:48,276 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 19:21:48,276 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-09 19:21:48,276 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 19:21:48,276 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-09 19:21:48,276 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-09 19:21:48,276 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_a075811b-be00-495f-a1ff-341dcda974a9/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 -> cbf38875841624eee0d839935b3b6d34a59b0b20 [2018-12-09 19:21:48,293 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 19:21:48,302 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 19:21:48,304 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 19:21:48,305 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 19:21:48,305 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 19:21:48,305 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a075811b-be00-495f-a1ff-341dcda974a9/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1071_true-unreach-call.c [2018-12-09 19:21:48,342 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a075811b-be00-495f-a1ff-341dcda974a9/bin-2019/utaipan/data/3f2b1758e/c3e4e974d7e04e4785fa0d6f75e297f2/FLAG1ea8b72ab [2018-12-09 19:21:48,688 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 19:21:48,688 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a075811b-be00-495f-a1ff-341dcda974a9/sv-benchmarks/c/float-newlib/float_req_bl_1071_true-unreach-call.c [2018-12-09 19:21:48,692 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a075811b-be00-495f-a1ff-341dcda974a9/bin-2019/utaipan/data/3f2b1758e/c3e4e974d7e04e4785fa0d6f75e297f2/FLAG1ea8b72ab [2018-12-09 19:21:49,077 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a075811b-be00-495f-a1ff-341dcda974a9/bin-2019/utaipan/data/3f2b1758e/c3e4e974d7e04e4785fa0d6f75e297f2 [2018-12-09 19:21:49,079 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 19:21:49,079 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 19:21:49,080 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 19:21:49,080 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 19:21:49,082 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 19:21:49,083 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:21:49" (1/1) ... [2018-12-09 19:21:49,084 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69e2f300 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:21:49, skipping insertion in model container [2018-12-09 19:21:49,085 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:21:49" (1/1) ... [2018-12-09 19:21:49,089 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 19:21:49,098 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 19:21:49,190 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:21:49,193 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 19:21:49,208 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:21:49,223 INFO L195 MainTranslator]: Completed translation [2018-12-09 19:21:49,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:21:49 WrapperNode [2018-12-09 19:21:49,223 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 19:21:49,223 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 19:21:49,224 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 19:21:49,224 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 19:21:49,228 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:21:49" (1/1) ... [2018-12-09 19:21:49,234 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:21:49" (1/1) ... [2018-12-09 19:21:49,239 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 19:21:49,239 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 19:21:49,239 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 19:21:49,239 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 19:21:49,244 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:21:49" (1/1) ... [2018-12-09 19:21:49,245 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:21:49" (1/1) ... [2018-12-09 19:21:49,247 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:21:49" (1/1) ... [2018-12-09 19:21:49,247 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:21:49" (1/1) ... [2018-12-09 19:21:49,253 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:21:49" (1/1) ... [2018-12-09 19:21:49,256 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:21:49" (1/1) ... [2018-12-09 19:21:49,258 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:21:49" (1/1) ... [2018-12-09 19:21:49,259 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 19:21:49,259 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 19:21:49,259 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 19:21:49,260 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 19:21:49,260 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:21:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a075811b-be00-495f-a1ff-341dcda974a9/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 [2018-12-09 19:21:49,325 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-12-09 19:21:49,325 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-12-09 19:21:49,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 19:21:49,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 19:21:49,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 19:21:49,325 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-09 19:21:49,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 19:21:49,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 19:21:49,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-12-09 19:21:49,326 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 19:21:49,326 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 19:21:49,326 INFO L130 BoogieDeclarations]: Found specification of procedure trunc_float [2018-12-09 19:21:49,326 INFO L138 BoogieDeclarations]: Found implementation of procedure trunc_float [2018-12-09 19:21:49,326 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-12-09 19:21:49,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-09 19:21:49,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 19:21:49,463 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:49,480 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 19:21:49,480 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-09 19:21:49,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:21:49 BoogieIcfgContainer [2018-12-09 19:21:49,481 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 19:21:49,481 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 19:21:49,481 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 19:21:49,483 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 19:21:49,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 07:21:49" (1/3) ... [2018-12-09 19:21:49,484 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47796bb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:21:49, skipping insertion in model container [2018-12-09 19:21:49,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:21:49" (2/3) ... [2018-12-09 19:21:49,484 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47796bb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:21:49, skipping insertion in model container [2018-12-09 19:21:49,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:21:49" (3/3) ... [2018-12-09 19:21:49,485 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1071_true-unreach-call.c [2018-12-09 19:21:49,491 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 19:21:49,496 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 19:21:49,506 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 19:21:49,524 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 19:21:49,525 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 19:21:49,525 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 19:21:49,525 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 19:21:49,525 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 19:21:49,525 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 19:21:49,525 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 19:21:49,525 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 19:21:49,525 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 19:21:49,536 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2018-12-09 19:21:49,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-09 19:21:49,539 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:21:49,540 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:21:49,541 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:21:49,544 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:21:49,545 INFO L82 PathProgramCache]: Analyzing trace with hash 1067176125, now seen corresponding path program 1 times [2018-12-09 19:21:49,547 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 19:21:49,548 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a075811b-be00-495f-a1ff-341dcda974a9/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 [2018-12-09 19:21:49,575 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:21:49,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:21:49,630 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 19:21:49,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:21:49,642 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 19:21:49,652 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:21:49,652 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 19:21:49,654 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 19:21:49,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 19:21:49,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 19:21:49,663 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2018-12-09 19:21:49,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:21:49,675 INFO L93 Difference]: Finished difference Result 58 states and 76 transitions. [2018-12-09 19:21:49,676 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 19:21:49,677 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-12-09 19:21:49,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:21:49,683 INFO L225 Difference]: With dead ends: 58 [2018-12-09 19:21:49,683 INFO L226 Difference]: Without dead ends: 29 [2018-12-09 19:21:49,685 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 19:21:49,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-12-09 19:21:49,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2018-12-09 19:21:49,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-12-09 19:21:49,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2018-12-09 19:21:49,709 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 21 [2018-12-09 19:21:49,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:21:49,709 INFO L480 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2018-12-09 19:21:49,709 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 19:21:49,709 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2018-12-09 19:21:49,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-09 19:21:49,710 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:21:49,710 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:21:49,710 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:21:49,711 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:21:49,711 INFO L82 PathProgramCache]: Analyzing trace with hash -560796248, now seen corresponding path program 1 times [2018-12-09 19:21:49,711 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 19:21:49,711 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a075811b-be00-495f-a1ff-341dcda974a9/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 [2018-12-09 19:21:49,715 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:21:49,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:21:49,754 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 19:21:49,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:21:49,797 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 19:21:49,804 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:21:49,804 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 19:21:49,805 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 19:21:49,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 19:21:49,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-09 19:21:49,806 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand 4 states. [2018-12-09 19:21:49,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:21:49,840 INFO L93 Difference]: Finished difference Result 42 states and 43 transitions. [2018-12-09 19:21:49,841 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 19:21:49,841 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2018-12-09 19:21:49,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:21:49,843 INFO L225 Difference]: With dead ends: 42 [2018-12-09 19:21:49,843 INFO L226 Difference]: Without dead ends: 32 [2018-12-09 19:21:49,844 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-09 19:21:49,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-12-09 19:21:49,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 29. [2018-12-09 19:21:49,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-12-09 19:21:49,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2018-12-09 19:21:49,847 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 22 [2018-12-09 19:21:49,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:21:49,848 INFO L480 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2018-12-09 19:21:49,848 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 19:21:49,848 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2018-12-09 19:21:49,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-09 19:21:49,848 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:21:49,848 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:21:49,849 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:21:49,849 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:21:49,849 INFO L82 PathProgramCache]: Analyzing trace with hash 707143418, now seen corresponding path program 1 times [2018-12-09 19:21:49,849 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 19:21:49,849 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a075811b-be00-495f-a1ff-341dcda974a9/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 [2018-12-09 19:21:49,852 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:21:49,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:21:49,876 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 19:21:49,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:21:49,969 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 19:21:49,976 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:21:49,976 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-09 19:21:49,976 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-09 19:21:49,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-09 19:21:49,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-12-09 19:21:49,977 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 9 states. [2018-12-09 19:21:50,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:21:50,160 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2018-12-09 19:21:50,161 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-09 19:21:50,161 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2018-12-09 19:21:50,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:21:50,161 INFO L225 Difference]: With dead ends: 37 [2018-12-09 19:21:50,162 INFO L226 Difference]: Without dead ends: 28 [2018-12-09 19:21:50,162 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-12-09 19:21:50,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-12-09 19:21:50,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2018-12-09 19:21:50,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-12-09 19:21:50,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2018-12-09 19:21:50,167 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 23 [2018-12-09 19:21:50,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:21:50,167 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2018-12-09 19:21:50,167 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-09 19:21:50,167 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2018-12-09 19:21:50,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-09 19:21:50,168 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:21:50,168 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:21:50,168 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:21:50,168 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:21:50,168 INFO L82 PathProgramCache]: Analyzing trace with hash -752265653, now seen corresponding path program 1 times [2018-12-09 19:21:50,168 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 19:21:50,168 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a075811b-be00-495f-a1ff-341dcda974a9/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 [2018-12-09 19:21:50,172 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:21:50,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:21:50,201 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 19:21:50,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:21:50,270 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 19:21:50,277 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:21:50,277 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 19:21:50,278 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 19:21:50,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 19:21:50,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 19:21:50,278 INFO L87 Difference]: Start difference. First operand 28 states and 28 transitions. Second operand 7 states. [2018-12-09 19:21:50,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:21:50,475 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2018-12-09 19:21:50,475 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 19:21:50,475 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2018-12-09 19:21:50,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:21:50,476 INFO L225 Difference]: With dead ends: 28 [2018-12-09 19:21:50,476 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 19:21:50,476 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-12-09 19:21:50,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 19:21:50,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 19:21:50,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 19:21:50,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 19:21:50,477 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2018-12-09 19:21:50,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:21:50,477 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 19:21:50,477 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 19:21:50,477 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 19:21:50,477 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 19:21:50,480 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 19:21:50,620 INFO L448 ceAbstractionStarter]: For program point isnan_floatFINAL(line 44) no Hoare annotation was computed. [2018-12-09 19:21:50,620 INFO L451 ceAbstractionStarter]: At program point isnan_floatENTRY(line 44) the Hoare annotation is: true [2018-12-09 19:21:50,621 INFO L448 ceAbstractionStarter]: For program point isnan_floatEXIT(line 44) no Hoare annotation was computed. [2018-12-09 19:21:50,621 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-09 19:21:50,621 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-09 19:21:50,621 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 19:21:50,621 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 19:21:50,621 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-09 19:21:50,621 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 19:21:50,621 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 19:21:50,621 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 57) no Hoare annotation was computed. [2018-12-09 19:21:50,622 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 46 62) the Hoare annotation is: true [2018-12-09 19:21:50,622 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 46 62) no Hoare annotation was computed. [2018-12-09 19:21:50,622 INFO L448 ceAbstractionStarter]: For program point L57(line 57) no Hoare annotation was computed. [2018-12-09 19:21:50,622 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 46 62) no Hoare annotation was computed. [2018-12-09 19:21:50,622 INFO L444 ceAbstractionStarter]: At program point L56(line 56) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= main_~res~0 .cse0) (= main_~x~0 .cse0))) [2018-12-09 19:21:50,622 INFO L448 ceAbstractionStarter]: For program point L56-1(lines 56 59) no Hoare annotation was computed. [2018-12-09 19:21:50,622 INFO L444 ceAbstractionStarter]: At program point L53(line 53) the Hoare annotation is: (= main_~x~0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))) [2018-12-09 19:21:50,622 INFO L448 ceAbstractionStarter]: For program point L53-1(line 53) no Hoare annotation was computed. [2018-12-09 19:21:50,623 INFO L448 ceAbstractionStarter]: For program point L21(lines 21 39) no Hoare annotation was computed. [2018-12-09 19:21:50,623 INFO L448 ceAbstractionStarter]: For program point L21-1(lines 21 39) no Hoare annotation was computed. [2018-12-09 19:21:50,623 INFO L451 ceAbstractionStarter]: At program point trunc_floatENTRY(lines 12 41) the Hoare annotation is: true [2018-12-09 19:21:50,623 INFO L448 ceAbstractionStarter]: For program point trunc_floatEXIT(lines 12 41) no Hoare annotation was computed. [2018-12-09 19:21:50,623 INFO L448 ceAbstractionStarter]: For program point L30-1(lines 30 34) no Hoare annotation was computed. [2018-12-09 19:21:50,623 INFO L444 ceAbstractionStarter]: At program point L30-2(lines 30 34) the Hoare annotation is: (and (= trunc_float_~x |trunc_float_#in~x|) (exists ((trunc_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|) (bvslt (bvadd (bvashr (bvand (_ bv2139095040 32) trunc_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) (_ bv23 32)))) (exists ((trunc_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|) (= (bvadd (bvashr (bvand (_ bv2139095040 32) trunc_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) trunc_float_~exponent_less_127~0))) (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|)) [2018-12-09 19:21:50,623 INFO L448 ceAbstractionStarter]: For program point L24-1(lines 24 28) no Hoare annotation was computed. [2018-12-09 19:21:50,623 INFO L448 ceAbstractionStarter]: For program point trunc_floatFINAL(lines 12 41) no Hoare annotation was computed. [2018-12-09 19:21:50,623 INFO L448 ceAbstractionStarter]: For program point L22(lines 22 35) no Hoare annotation was computed. [2018-12-09 19:21:50,623 INFO L444 ceAbstractionStarter]: At program point L24-2(lines 24 28) the Hoare annotation is: (and (= trunc_float_~x |trunc_float_#in~x|) (exists ((trunc_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|) (bvslt (bvadd (bvashr (bvand (_ bv2139095040 32) trunc_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) (_ bv23 32)))) (exists ((trunc_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|) (= (bvadd (bvashr (bvand (_ bv2139095040 32) trunc_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) trunc_float_~exponent_less_127~0))) (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|)) [2018-12-09 19:21:50,623 INFO L448 ceAbstractionStarter]: For program point L14-1(lines 14 18) no Hoare annotation was computed. [2018-12-09 19:21:50,624 INFO L444 ceAbstractionStarter]: At program point L14-2(lines 14 18) the Hoare annotation is: (= trunc_float_~x |trunc_float_#in~x|) [2018-12-09 19:21:50,624 INFO L448 ceAbstractionStarter]: For program point L14-3(lines 14 18) no Hoare annotation was computed. [2018-12-09 19:21:50,624 INFO L448 ceAbstractionStarter]: For program point L37(lines 37 38) no Hoare annotation was computed. [2018-12-09 19:21:50,628 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 19:21:50,629 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 19:21:50,629 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 19:21:50,629 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 19:21:50,629 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 19:21:50,629 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 19:21:50,629 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 19:21:50,630 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 19:21:50,634 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 19:21:50,634 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 19:21:50,634 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 19:21:50,635 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 19:21:50,635 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 19:21:50,635 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 19:21:50,635 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 19:21:50,635 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 19:21:50,637 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 19:21:50,637 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 19:21:50,637 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 19:21:50,637 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 19:21:50,637 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 19:21:50,638 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 19:21:50,638 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 19:21:50,638 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 19:21:50,639 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 19:21:50,639 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 19:21:50,639 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 19:21:50,639 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 19:21:50,639 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 19:21:50,640 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 19:21:50,640 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 19:21:50,640 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 19:21:50,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 07:21:50 BoogieIcfgContainer [2018-12-09 19:21:50,642 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 19:21:50,642 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 19:21:50,642 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 19:21:50,642 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 19:21:50,643 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:21:49" (3/4) ... [2018-12-09 19:21:50,646 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 19:21:50,650 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-12-09 19:21:50,650 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 19:21:50,651 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 19:21:50,651 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure trunc_float [2018-12-09 19:21:50,654 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2018-12-09 19:21:50,654 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-12-09 19:21:50,655 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-09 19:21:50,673 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-12-09 19:21:50,674 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((x == \old(x) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvslt32(~bvadd64(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 4294967169bv32), 23bv32))) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvadd64(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == \old(x) [2018-12-09 19:21:50,674 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((x == \old(x) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvslt32(~bvadd64(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 4294967169bv32), 23bv32))) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvadd64(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == \old(x) [2018-12-09 19:21:50,686 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_a075811b-be00-495f-a1ff-341dcda974a9/bin-2019/utaipan/witness.graphml [2018-12-09 19:21:50,686 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 19:21:50,687 INFO L168 Benchmark]: Toolchain (without parser) took 1607.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 943.4 MB in the beginning and 968.8 MB in the end (delta: -25.4 MB). Peak memory consumption was 116.1 MB. Max. memory is 11.5 GB. [2018-12-09 19:21:50,688 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:21:50,688 INFO L168 Benchmark]: CACSL2BoogieTranslator took 143.19 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 932.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-09 19:21:50,688 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.27 ms. Allocated memory is still 1.0 GB. Free memory was 932.6 MB in the beginning and 927.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-09 19:21:50,688 INFO L168 Benchmark]: Boogie Preprocessor took 20.27 ms. Allocated memory is still 1.0 GB. Free memory is still 927.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:21:50,688 INFO L168 Benchmark]: RCFGBuilder took 221.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -178.8 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. [2018-12-09 19:21:50,689 INFO L168 Benchmark]: TraceAbstraction took 1160.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 975.4 MB in the end (delta: 130.7 MB). Peak memory consumption was 130.7 MB. Max. memory is 11.5 GB. [2018-12-09 19:21:50,689 INFO L168 Benchmark]: Witness Printer took 44.17 ms. Allocated memory is still 1.2 GB. Free memory was 975.4 MB in the beginning and 968.8 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-12-09 19:21:50,690 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 143.19 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 932.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 15.27 ms. Allocated memory is still 1.0 GB. Free memory was 932.6 MB in the beginning and 927.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.27 ms. Allocated memory is still 1.0 GB. Free memory is still 927.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 221.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -178.8 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1160.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 975.4 MB in the end (delta: 130.7 MB). Peak memory consumption was 130.7 MB. Max. memory is 11.5 GB. * Witness Printer took 44.17 ms. Allocated memory is still 1.2 GB. Free memory was 975.4 MB in the beginning and 968.8 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[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 57]: 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: 24]: Loop Invariant [2018-12-09 19:21:50,693 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 19:21:50,693 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 19:21:50,693 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 19:21:50,693 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 19:21:50,693 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 19:21:50,693 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 19:21:50,694 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 19:21:50,694 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 19:21:50,694 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 19:21:50,694 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 19:21:50,694 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 19:21:50,694 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 19:21:50,694 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 19:21:50,695 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 19:21:50,695 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 19:21:50,695 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] Derived loop invariant: ((x == \old(x) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvslt32(~bvadd64(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 4294967169bv32), 23bv32))) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvadd64(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == \old(x) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: x == \old(x) - InvariantResult [Line: 30]: Loop Invariant [2018-12-09 19:21:50,695 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 19:21:50,695 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 19:21:50,695 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 19:21:50,696 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 19:21:50,696 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 19:21:50,696 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 19:21:50,696 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 19:21:50,696 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 19:21:50,696 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 19:21:50,696 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 19:21:50,696 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 19:21:50,697 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 19:21:50,697 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 19:21:50,697 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 19:21:50,697 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 19:21:50,697 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] Derived loop invariant: ((x == \old(x) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvslt32(~bvadd64(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 4294967169bv32), 23bv32))) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvadd64(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == \old(x) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 33 locations, 1 error locations. SAFE Result, 1.1s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 98 SDtfs, 50 SDslu, 220 SDs, 0 SdLazy, 84 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 95 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 14 PreInvPairs, 18 NumberOfFragments, 134 HoareAnnotationTreeSize, 14 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 20 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 91 NumberOfCodeBlocks, 91 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 87 ConstructedInterpolants, 9 QuantifiedInterpolants, 7602 SizeOfPredicates, 10 NumberOfNonLiveVariables, 226 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...