./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0710_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_6af63a9d-b032-47c0-94ad-777e38309723/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6af63a9d-b032-47c0-94ad-777e38309723/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6af63a9d-b032-47c0-94ad-777e38309723/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6af63a9d-b032-47c0-94ad-777e38309723/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0710_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_6af63a9d-b032-47c0-94ad-777e38309723/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6af63a9d-b032-47c0-94ad-777e38309723/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 1ff4e8ff973f803d8fa94df33d1e2314e0626318 ............................................................................................................................................................................................................................................................................................................................................................................... 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_6af63a9d-b032-47c0-94ad-777e38309723/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6af63a9d-b032-47c0-94ad-777e38309723/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6af63a9d-b032-47c0-94ad-777e38309723/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6af63a9d-b032-47c0-94ad-777e38309723/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0710_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_6af63a9d-b032-47c0-94ad-777e38309723/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6af63a9d-b032-47c0-94ad-777e38309723/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 1ff4e8ff973f803d8fa94df33d1e2314e0626318 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 10:40:46,940 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 10:40:46,941 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 10:40:46,950 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 10:40:46,950 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 10:40:46,950 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 10:40:46,951 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 10:40:46,952 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 10:40:46,954 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 10:40:46,954 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 10:40:46,955 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 10:40:46,955 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 10:40:46,956 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 10:40:46,956 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 10:40:46,957 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 10:40:46,957 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 10:40:46,958 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 10:40:46,959 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 10:40:46,960 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 10:40:46,962 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 10:40:46,962 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 10:40:46,963 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 10:40:46,965 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 10:40:46,965 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 10:40:46,965 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 10:40:46,966 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 10:40:46,966 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 10:40:46,967 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 10:40:46,967 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 10:40:46,968 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 10:40:46,968 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 10:40:46,969 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 10:40:46,969 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 10:40:46,969 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 10:40:46,970 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 10:40:46,970 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 10:40:46,970 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6af63a9d-b032-47c0-94ad-777e38309723/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-10 10:40:46,980 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 10:40:46,980 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 10:40:46,981 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 10:40:46,981 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 10:40:46,981 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 10:40:46,981 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 10:40:46,981 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 10:40:46,981 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 10:40:46,981 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 10:40:46,981 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 10:40:46,982 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 10:40:46,982 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 10:40:46,982 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 10:40:46,982 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 10:40:46,982 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 10:40:46,983 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 10:40:46,983 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 10:40:46,983 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 10:40:46,983 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 10:40:46,983 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 10:40:46,983 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 10:40:46,983 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 10:40:46,983 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 10:40:46,984 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 10:40:46,984 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 10:40:46,984 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 10:40:46,984 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 10:40:46,984 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 10:40:46,984 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 10:40:46,984 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 10:40:46,985 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 10:40:46,985 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 10:40:46,985 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 10:40:46,985 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 10:40:46,985 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_6af63a9d-b032-47c0-94ad-777e38309723/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 -> 1ff4e8ff973f803d8fa94df33d1e2314e0626318 [2018-11-10 10:40:47,008 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 10:40:47,017 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 10:40:47,020 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 10:40:47,021 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 10:40:47,022 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 10:40:47,022 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6af63a9d-b032-47c0-94ad-777e38309723/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0710_true-unreach-call.c [2018-11-10 10:40:47,066 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6af63a9d-b032-47c0-94ad-777e38309723/bin-2019/utaipan/data/293c371be/fe2612480dca45c1957972740f7d2261/FLAG6177e1341 [2018-11-10 10:40:47,468 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 10:40:47,468 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6af63a9d-b032-47c0-94ad-777e38309723/sv-benchmarks/c/float-newlib/float_req_bl_0710_true-unreach-call.c [2018-11-10 10:40:47,473 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6af63a9d-b032-47c0-94ad-777e38309723/bin-2019/utaipan/data/293c371be/fe2612480dca45c1957972740f7d2261/FLAG6177e1341 [2018-11-10 10:40:47,485 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6af63a9d-b032-47c0-94ad-777e38309723/bin-2019/utaipan/data/293c371be/fe2612480dca45c1957972740f7d2261 [2018-11-10 10:40:47,488 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 10:40:47,489 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 10:40:47,490 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 10:40:47,490 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 10:40:47,493 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 10:40:47,494 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:40:47" (1/1) ... [2018-11-10 10:40:47,496 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f1788b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:40:47, skipping insertion in model container [2018-11-10 10:40:47,496 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:40:47" (1/1) ... [2018-11-10 10:40:47,505 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 10:40:47,523 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 10:40:47,660 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 10:40:47,662 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 10:40:47,679 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 10:40:47,692 INFO L193 MainTranslator]: Completed translation [2018-11-10 10:40:47,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:40:47 WrapperNode [2018-11-10 10:40:47,692 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 10:40:47,692 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 10:40:47,692 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 10:40:47,692 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 10:40:47,697 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:40:47" (1/1) ... [2018-11-10 10:40:47,704 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:40:47" (1/1) ... [2018-11-10 10:40:47,718 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 10:40:47,718 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 10:40:47,718 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 10:40:47,718 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 10:40:47,724 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:40:47" (1/1) ... [2018-11-10 10:40:47,724 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:40:47" (1/1) ... [2018-11-10 10:40:47,726 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:40:47" (1/1) ... [2018-11-10 10:40:47,726 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:40:47" (1/1) ... [2018-11-10 10:40:47,730 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:40:47" (1/1) ... [2018-11-10 10:40:47,733 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:40:47" (1/1) ... [2018-11-10 10:40:47,734 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:40:47" (1/1) ... [2018-11-10 10:40:47,735 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 10:40:47,736 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 10:40:47,736 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 10:40:47,736 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 10:40:47,737 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:40:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6af63a9d-b032-47c0-94ad-777e38309723/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 10:40:47,813 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 10:40:47,813 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 10:40:47,813 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-10 10:40:47,813 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-10 10:40:47,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 10:40:47,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 10:40:47,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 10:40:47,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 10:40:47,813 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-11-10 10:40:47,814 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-11-10 10:40:48,025 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 10:40:48,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 10:40:48 BoogieIcfgContainer [2018-11-10 10:40:48,026 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 10:40:48,026 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 10:40:48,026 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 10:40:48,028 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 10:40:48,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:40:47" (1/3) ... [2018-11-10 10:40:48,029 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3501aa57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:40:48, skipping insertion in model container [2018-11-10 10:40:48,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:40:47" (2/3) ... [2018-11-10 10:40:48,029 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3501aa57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:40:48, skipping insertion in model container [2018-11-10 10:40:48,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 10:40:48" (3/3) ... [2018-11-10 10:40:48,031 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0710_true-unreach-call.c [2018-11-10 10:40:48,037 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 10:40:48,042 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 10:40:48,050 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 10:40:48,068 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 10:40:48,068 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 10:40:48,068 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 10:40:48,069 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 10:40:48,069 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 10:40:48,069 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 10:40:48,069 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 10:40:48,069 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 10:40:48,080 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2018-11-10 10:40:48,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-10 10:40:48,084 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 10:40:48,084 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 10:40:48,086 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 10:40:48,091 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 10:40:48,091 INFO L82 PathProgramCache]: Analyzing trace with hash 27236952, now seen corresponding path program 1 times [2018-11-10 10:40:48,092 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 10:40:48,122 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:40:48,122 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 10:40:48,122 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:40:48,122 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 10:40:48,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 10:40:48,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 10:40:48,182 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 10:40:48,182 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 10:40:48,182 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 10:40:48,186 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 10:40:48,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 10:40:48,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 10:40:48,195 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 2 states. [2018-11-10 10:40:48,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 10:40:48,210 INFO L93 Difference]: Finished difference Result 91 states and 126 transitions. [2018-11-10 10:40:48,211 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 10:40:48,211 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-11-10 10:40:48,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 10:40:48,218 INFO L225 Difference]: With dead ends: 91 [2018-11-10 10:40:48,219 INFO L226 Difference]: Without dead ends: 45 [2018-11-10 10:40:48,221 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 10:40:48,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-11-10 10:40:48,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2018-11-10 10:40:48,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-11-10 10:40:48,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 55 transitions. [2018-11-10 10:40:48,246 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 55 transitions. Word has length 22 [2018-11-10 10:40:48,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 10:40:48,247 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 55 transitions. [2018-11-10 10:40:48,247 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 10:40:48,247 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 55 transitions. [2018-11-10 10:40:48,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-10 10:40:48,248 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 10:40:48,248 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 10:40:48,248 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 10:40:48,248 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 10:40:48,248 INFO L82 PathProgramCache]: Analyzing trace with hash 2111972138, now seen corresponding path program 1 times [2018-11-10 10:40:48,249 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 10:40:48,249 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:40:48,250 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 10:40:48,250 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:40:48,250 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 10:40:48,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 10:40:48,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 10:40:48,313 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 10:40:48,322 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 10:40:48,323 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 10:40:48,323 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 10:40:48,323 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 10:40:48,323 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 10:40:48,323 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 10:40:48,324 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 10:40:48,324 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 10:40:48,324 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 10:40:48,324 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 10:40:48,324 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 10:40:48,324 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 10:40:48,324 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 10:40:48,325 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 10:40:48,325 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 10:40:48,325 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 10:40:48,325 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 10:40:48,325 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 10:40:48,325 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 10:40:48,325 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 10:40:48,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 10:40:48 BoogieIcfgContainer [2018-11-10 10:40:48,336 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 10:40:48,337 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 10:40:48,337 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 10:40:48,337 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 10:40:48,337 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 10:40:48" (3/4) ... [2018-11-10 10:40:48,341 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 10:40:48,341 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 10:40:48,341 INFO L168 Benchmark]: Toolchain (without parser) took 853.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.7 MB). Free memory was 959.2 MB in the beginning and 1.1 GB in the end (delta: -147.1 MB). Peak memory consumption was 19.6 MB. Max. memory is 11.5 GB. [2018-11-10 10:40:48,343 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 10:40:48,343 INFO L168 Benchmark]: CACSL2BoogieTranslator took 202.28 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 945.7 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-10 10:40:48,344 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.58 ms. Allocated memory is still 1.0 GB. Free memory is still 945.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 10:40:48,344 INFO L168 Benchmark]: Boogie Preprocessor took 17.53 ms. Allocated memory is still 1.0 GB. Free memory was 945.7 MB in the beginning and 943.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 10:40:48,345 INFO L168 Benchmark]: RCFGBuilder took 289.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.7 MB). Free memory was 943.0 MB in the beginning and 1.1 GB in the end (delta: -197.3 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. [2018-11-10 10:40:48,345 INFO L168 Benchmark]: TraceAbstraction took 310.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 34.1 MB). Peak memory consumption was 34.1 MB. Max. memory is 11.5 GB. [2018-11-10 10:40:48,346 INFO L168 Benchmark]: Witness Printer took 4.09 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 10:40:48,348 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 202.28 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 945.7 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.58 ms. Allocated memory is still 1.0 GB. Free memory is still 945.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.53 ms. Allocated memory is still 1.0 GB. Free memory was 945.7 MB in the beginning and 943.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 289.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.7 MB). Free memory was 943.0 MB in the beginning and 1.1 GB in the end (delta: -197.3 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 310.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 34.1 MB). Peak memory consumption was 34.1 MB. Max. memory is 11.5 GB. * Witness Printer took 4.09 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 98]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 13, overapproximation of bitwiseAnd at line 27, overapproximation of someBinaryArithmeticFLOAToperation at line 30. Possible FailurePath: [L15] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; VAL [\old(one_sqrt)=6442450951, \old(tiny_sqrt)=6442450948, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L91] float x = __VERIFIER_nondet_float(); [L92] COND TRUE x < -0.0f VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6442450950] [L94] CALL, EXPR __ieee754_sqrtf(x) VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L18] float z; [L19] __uint32_t r, hx; [L20] __int32_t ix, s, q, m, t, i; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L23] CALL ieee_float_shape_type gf_u; [L23] RET ieee_float_shape_type gf_u; [L24] CALL gf_u.value = (x) [L24] RET gf_u.value = (x) [L25] CALL, EXPR gf_u.word [L25] RET, EXPR gf_u.word [L25] (ix) = gf_u.word [L25] RET (ix) = gf_u.word [L26] COND FALSE !(0) VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L27] hx = ix & 0x7fffffff VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L29] COND TRUE !((hx) < 0x7f800000L) [L30] RET return x * x + x; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L94] EXPR __ieee754_sqrtf(x) VAL [__ieee754_sqrtf(x)=6442450947, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6442450950] [L94] float res = __ieee754_sqrtf(x); [L97] CALL, EXPR isnan_float(res) VAL [\old(x)=6442450947, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L13] RET return x != x; VAL [\old(x)=6442450947, \result=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6442450947] [L97] EXPR isnan_float(res) VAL [isnan_float(res)=0, one_sqrt=1, res=6442450947, tiny_sqrt=1/1000000000000000000000000000000, x=6442450950] [L97] COND TRUE !isnan_float(res) [L98] __VERIFIER_error() VAL [one_sqrt=1, res=6442450947, tiny_sqrt=1/1000000000000000000000000000000, x=6442450950] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 50 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 61 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=50occurred 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 0.1.23-1dbac8b [2018-11-10 10:40:49,794 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 10:40:49,796 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 10:40:49,804 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 10:40:49,804 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 10:40:49,805 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 10:40:49,806 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 10:40:49,807 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 10:40:49,808 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 10:40:49,808 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 10:40:49,809 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 10:40:49,809 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 10:40:49,810 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 10:40:49,811 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 10:40:49,811 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 10:40:49,812 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 10:40:49,812 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 10:40:49,813 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 10:40:49,815 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 10:40:49,816 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 10:40:49,816 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 10:40:49,817 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 10:40:49,819 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 10:40:49,819 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 10:40:49,819 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 10:40:49,820 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 10:40:49,821 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 10:40:49,821 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 10:40:49,822 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 10:40:49,822 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 10:40:49,822 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 10:40:49,823 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 10:40:49,823 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 10:40:49,823 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 10:40:49,824 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 10:40:49,824 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 10:40:49,825 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6af63a9d-b032-47c0-94ad-777e38309723/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-10 10:40:49,834 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 10:40:49,835 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 10:40:49,835 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 10:40:49,835 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 10:40:49,835 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 10:40:49,836 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 10:40:49,836 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 10:40:49,836 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 10:40:49,836 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 10:40:49,837 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 10:40:49,837 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 10:40:49,837 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 10:40:49,837 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 10:40:49,837 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 10:40:49,837 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 10:40:49,837 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-10 10:40:49,837 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-10 10:40:49,838 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 10:40:49,838 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 10:40:49,838 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 10:40:49,838 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 10:40:49,838 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 10:40:49,838 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 10:40:49,838 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 10:40:49,838 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 10:40:49,839 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 10:40:49,839 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 10:40:49,839 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 10:40:49,839 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-10 10:40:49,839 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 10:40:49,839 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-10 10:40:49,839 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-10 10:40:49,840 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_6af63a9d-b032-47c0-94ad-777e38309723/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 -> 1ff4e8ff973f803d8fa94df33d1e2314e0626318 [2018-11-10 10:40:49,868 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 10:40:49,878 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 10:40:49,881 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 10:40:49,882 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 10:40:49,882 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 10:40:49,883 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6af63a9d-b032-47c0-94ad-777e38309723/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0710_true-unreach-call.c [2018-11-10 10:40:49,920 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6af63a9d-b032-47c0-94ad-777e38309723/bin-2019/utaipan/data/189afdda3/02d6bc8e9ef046c6aa6605406959025d/FLAG2c3fccd04 [2018-11-10 10:40:50,314 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 10:40:50,314 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6af63a9d-b032-47c0-94ad-777e38309723/sv-benchmarks/c/float-newlib/float_req_bl_0710_true-unreach-call.c [2018-11-10 10:40:50,318 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6af63a9d-b032-47c0-94ad-777e38309723/bin-2019/utaipan/data/189afdda3/02d6bc8e9ef046c6aa6605406959025d/FLAG2c3fccd04 [2018-11-10 10:40:50,327 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6af63a9d-b032-47c0-94ad-777e38309723/bin-2019/utaipan/data/189afdda3/02d6bc8e9ef046c6aa6605406959025d [2018-11-10 10:40:50,329 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 10:40:50,330 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 10:40:50,330 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 10:40:50,330 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 10:40:50,333 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 10:40:50,334 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:40:50" (1/1) ... [2018-11-10 10:40:50,336 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12f8d760 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:40:50, skipping insertion in model container [2018-11-10 10:40:50,336 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:40:50" (1/1) ... [2018-11-10 10:40:50,344 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 10:40:50,360 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 10:40:50,483 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 10:40:50,488 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 10:40:50,509 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 10:40:50,528 INFO L193 MainTranslator]: Completed translation [2018-11-10 10:40:50,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:40:50 WrapperNode [2018-11-10 10:40:50,529 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 10:40:50,529 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 10:40:50,530 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 10:40:50,530 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 10:40:50,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:40:50" (1/1) ... [2018-11-10 10:40:50,544 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:40:50" (1/1) ... [2018-11-10 10:40:50,559 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 10:40:50,559 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 10:40:50,559 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 10:40:50,559 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 10:40:50,566 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:40:50" (1/1) ... [2018-11-10 10:40:50,566 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:40:50" (1/1) ... [2018-11-10 10:40:50,569 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:40:50" (1/1) ... [2018-11-10 10:40:50,569 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:40:50" (1/1) ... [2018-11-10 10:40:50,574 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:40:50" (1/1) ... [2018-11-10 10:40:50,577 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:40:50" (1/1) ... [2018-11-10 10:40:50,578 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:40:50" (1/1) ... [2018-11-10 10:40:50,581 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 10:40:50,581 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 10:40:50,581 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 10:40:50,581 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 10:40:50,582 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:40:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6af63a9d-b032-47c0-94ad-777e38309723/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 10:40:50,658 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 10:40:50,658 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 10:40:50,658 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-10 10:40:50,659 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-10 10:40:50,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 10:40:50,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 10:40:50,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 10:40:50,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 10:40:50,659 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-11-10 10:40:50,659 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-11-10 10:40:50,851 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 10:40:51,389 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 10:40:51,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 10:40:51 BoogieIcfgContainer [2018-11-10 10:40:51,389 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 10:40:51,390 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 10:40:51,390 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 10:40:51,392 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 10:40:51,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:40:50" (1/3) ... [2018-11-10 10:40:51,392 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@169f9d20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:40:51, skipping insertion in model container [2018-11-10 10:40:51,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:40:50" (2/3) ... [2018-11-10 10:40:51,393 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@169f9d20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:40:51, skipping insertion in model container [2018-11-10 10:40:51,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 10:40:51" (3/3) ... [2018-11-10 10:40:51,394 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0710_true-unreach-call.c [2018-11-10 10:40:51,400 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 10:40:51,405 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 10:40:51,414 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 10:40:51,435 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 10:40:51,436 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 10:40:51,436 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 10:40:51,436 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 10:40:51,436 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 10:40:51,436 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 10:40:51,437 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 10:40:51,437 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 10:40:51,437 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 10:40:51,447 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states. [2018-11-10 10:40:51,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-10 10:40:51,451 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 10:40:51,451 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 10:40:51,453 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 10:40:51,456 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 10:40:51,456 INFO L82 PathProgramCache]: Analyzing trace with hash 1301364216, now seen corresponding path program 1 times [2018-11-10 10:40:51,459 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 10:40:51,459 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6af63a9d-b032-47c0-94ad-777e38309723/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-10 10:40:51,463 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 10:40:51,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 10:40:51,575 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 10:40:51,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 10:40:51,587 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 10:40:51,601 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 10:40:51,601 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 10:40:51,604 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 10:40:51,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 10:40:51,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 10:40:51,617 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 2 states. [2018-11-10 10:40:51,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 10:40:51,633 INFO L93 Difference]: Finished difference Result 89 states and 124 transitions. [2018-11-10 10:40:51,633 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 10:40:51,634 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-11-10 10:40:51,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 10:40:51,642 INFO L225 Difference]: With dead ends: 89 [2018-11-10 10:40:51,642 INFO L226 Difference]: Without dead ends: 44 [2018-11-10 10:40:51,644 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 10:40:51,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-11-10 10:40:51,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-11-10 10:40:51,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-11-10 10:40:51,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 54 transitions. [2018-11-10 10:40:51,667 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 54 transitions. Word has length 21 [2018-11-10 10:40:51,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 10:40:51,668 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 54 transitions. [2018-11-10 10:40:51,668 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 10:40:51,668 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 54 transitions. [2018-11-10 10:40:51,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-10 10:40:51,668 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 10:40:51,669 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 10:40:51,669 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 10:40:51,669 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 10:40:51,669 INFO L82 PathProgramCache]: Analyzing trace with hash -125263929, now seen corresponding path program 1 times [2018-11-10 10:40:51,670 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 10:40:51,670 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6af63a9d-b032-47c0-94ad-777e38309723/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-10 10:40:51,682 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 10:40:51,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 10:40:51,816 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 10:40:55,026 WARN L179 SmtUtils]: Spent 726.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-11-10 10:41:02,915 WARN L179 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-11-10 10:41:10,318 WARN L179 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-11-10 10:41:13,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 10:41:13,208 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 10:41:13,216 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 10:41:13,216 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-11-10 10:41:13,217 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-10 10:41:13,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-10 10:41:13,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=85, Unknown=4, NotChecked=0, Total=110 [2018-11-10 10:41:13,218 INFO L87 Difference]: Start difference. First operand 44 states and 54 transitions. Second operand 11 states. [2018-11-10 10:41:46,033 WARN L179 SmtUtils]: Spent 1.90 s on a formula simplification that was a NOOP. DAG size: 27 [2018-11-10 10:42:15,127 WARN L179 SmtUtils]: Spent 399.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2018-11-10 10:42:32,286 WARN L179 SmtUtils]: Spent 408.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2018-11-10 10:43:42,780 WARN L179 SmtUtils]: Spent 503.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2018-11-10 10:45:53,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 10:45:53,806 INFO L93 Difference]: Finished difference Result 57 states and 68 transitions. [2018-11-10 10:45:53,806 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-10 10:45:53,806 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 22 [2018-11-10 10:45:53,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 10:45:53,808 INFO L225 Difference]: With dead ends: 57 [2018-11-10 10:45:53,808 INFO L226 Difference]: Without dead ends: 50 [2018-11-10 10:45:53,809 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 41.4s TimeCoverageRelationStatistics Valid=47, Invalid=185, Unknown=8, NotChecked=0, Total=240 [2018-11-10 10:45:53,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-11-10 10:45:53,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 44. [2018-11-10 10:45:53,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-11-10 10:45:53,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 53 transitions. [2018-11-10 10:45:53,816 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 53 transitions. Word has length 22 [2018-11-10 10:45:53,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 10:45:53,816 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 53 transitions. [2018-11-10 10:45:53,817 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-10 10:45:53,817 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 53 transitions. [2018-11-10 10:45:53,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-10 10:45:53,817 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 10:45:53,817 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 10:45:53,818 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 10:45:53,818 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 10:45:53,818 INFO L82 PathProgramCache]: Analyzing trace with hash 1937251226, now seen corresponding path program 1 times [2018-11-10 10:45:53,818 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 10:45:53,818 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6af63a9d-b032-47c0-94ad-777e38309723/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-11-10 10:45:53,821 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 10:45:53,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 10:45:53,867 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 10:45:53,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 10:45:53,932 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 10:45:53,940 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 10:45:53,941 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-10 10:45:53,941 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 10:45:53,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 10:45:53,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-10 10:45:53,942 INFO L87 Difference]: Start difference. First operand 44 states and 53 transitions. Second operand 7 states. [2018-11-10 10:45:54,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 10:45:54,696 INFO L93 Difference]: Finished difference Result 60 states and 69 transitions. [2018-11-10 10:45:54,697 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-10 10:45:54,697 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2018-11-10 10:45:54,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 10:45:54,698 INFO L225 Difference]: With dead ends: 60 [2018-11-10 10:45:54,698 INFO L226 Difference]: Without dead ends: 50 [2018-11-10 10:45:54,699 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-11-10 10:45:54,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-11-10 10:45:54,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 44. [2018-11-10 10:45:54,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-11-10 10:45:54,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 52 transitions. [2018-11-10 10:45:54,705 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 52 transitions. Word has length 23 [2018-11-10 10:45:54,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 10:45:54,706 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 52 transitions. [2018-11-10 10:45:54,706 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 10:45:54,706 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 52 transitions. [2018-11-10 10:45:54,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-10 10:45:54,706 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 10:45:54,706 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 10:45:54,706 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 10:45:54,707 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 10:45:54,707 INFO L82 PathProgramCache]: Analyzing trace with hash 664657571, now seen corresponding path program 1 times [2018-11-10 10:45:54,707 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 10:45:54,707 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6af63a9d-b032-47c0-94ad-777e38309723/bin-2019/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-11-10 10:45:54,714 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 10:45:54,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 10:45:54,889 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 10:45:55,829 WARN L179 SmtUtils]: Spent 562.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-11-10 10:45:57,510 WARN L179 SmtUtils]: Spent 552.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-11-10 10:46:00,153 WARN L179 SmtUtils]: Spent 420.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-11-10 10:46:03,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 10:46:03,267 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 10:46:03,275 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 10:46:03,275 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-10 10:46:03,276 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 10:46:03,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 10:46:03,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-10 10:46:03,276 INFO L87 Difference]: Start difference. First operand 44 states and 52 transitions. Second operand 7 states. [2018-11-10 10:46:10,060 WARN L179 SmtUtils]: Spent 1.28 s on a formula simplification that was a NOOP. DAG size: 11 [2018-11-10 10:46:10,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 10:46:10,949 INFO L93 Difference]: Finished difference Result 51 states and 59 transitions. [2018-11-10 10:46:10,949 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-10 10:46:10,949 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2018-11-10 10:46:10,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 10:46:10,950 INFO L225 Difference]: With dead ends: 51 [2018-11-10 10:46:10,950 INFO L226 Difference]: Without dead ends: 44 [2018-11-10 10:46:10,950 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.1s TimeCoverageRelationStatistics Valid=15, Invalid=40, Unknown=1, NotChecked=0, Total=56 [2018-11-10 10:46:10,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-11-10 10:46:10,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-11-10 10:46:10,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-11-10 10:46:10,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 51 transitions. [2018-11-10 10:46:10,956 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 51 transitions. Word has length 24 [2018-11-10 10:46:10,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 10:46:10,956 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 51 transitions. [2018-11-10 10:46:10,956 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 10:46:10,956 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 51 transitions. [2018-11-10 10:46:10,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-10 10:46:10,957 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 10:46:10,957 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 10:46:10,957 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 10:46:10,957 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 10:46:10,958 INFO L82 PathProgramCache]: Analyzing trace with hash 1056634615, now seen corresponding path program 1 times [2018-11-10 10:46:10,958 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 10:46:10,958 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6af63a9d-b032-47c0-94ad-777e38309723/bin-2019/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-11-10 10:46:10,961 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 10:46:10,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 10:46:11,003 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 10:46:11,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 10:46:11,055 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 10:46:11,063 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 10:46:11,063 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-10 10:46:11,063 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-10 10:46:11,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-10 10:46:11,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-10 10:46:11,064 INFO L87 Difference]: Start difference. First operand 44 states and 51 transitions. Second operand 6 states. [2018-11-10 10:46:11,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 10:46:11,318 INFO L93 Difference]: Finished difference Result 48 states and 56 transitions. [2018-11-10 10:46:11,320 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-10 10:46:11,320 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2018-11-10 10:46:11,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 10:46:11,320 INFO L225 Difference]: With dead ends: 48 [2018-11-10 10:46:11,320 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 10:46:11,321 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-11-10 10:46:11,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 10:46:11,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 10:46:11,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 10:46:11,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 10:46:11,321 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2018-11-10 10:46:11,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 10:46:11,321 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 10:46:11,321 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-10 10:46:11,322 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 10:46:11,322 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 10:46:11,324 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 10:46:24,565 WARN L179 SmtUtils]: Spent 13.19 s on a formula simplification. DAG size of input: 30 DAG size of output: 12 [2018-11-10 10:46:24,683 INFO L425 ceAbstractionStarter]: For program point isnan_floatFINAL(line 13) no Hoare annotation was computed. [2018-11-10 10:46:24,683 INFO L428 ceAbstractionStarter]: At program point isnan_floatENTRY(line 13) the Hoare annotation is: true [2018-11-10 10:46:24,683 INFO L425 ceAbstractionStarter]: For program point isnan_floatEXIT(line 13) no Hoare annotation was computed. [2018-11-10 10:46:24,683 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-10 10:46:24,683 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-10 10:46:24,683 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 10:46:24,684 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 10:46:24,684 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 10:46:24,684 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 10:46:24,684 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 10:46:24,684 INFO L421 ceAbstractionStarter]: At program point L97(line 97) the Hoare annotation is: (and (exists ((__ieee754_sqrtf_~x (_ FloatingPoint 8 24))) (= main_~res~0 (let ((.cse0 (fp.sub RNE __ieee754_sqrtf_~x __ieee754_sqrtf_~x))) (fp.div RNE .cse0 .cse0)))) (fp.lt main_~x~0 (fp.neg (_ +zero 8 24)))) [2018-11-10 10:46:24,684 INFO L425 ceAbstractionStarter]: For program point L97-1(lines 97 100) no Hoare annotation was computed. [2018-11-10 10:46:24,684 INFO L421 ceAbstractionStarter]: At program point L94(line 94) the Hoare annotation is: (fp.lt main_~x~0 (fp.neg (_ +zero 8 24))) [2018-11-10 10:46:24,684 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 84 104) the Hoare annotation is: true [2018-11-10 10:46:24,684 INFO L425 ceAbstractionStarter]: For program point L94-1(line 94) no Hoare annotation was computed. [2018-11-10 10:46:24,684 INFO L425 ceAbstractionStarter]: For program point L92(lines 92 101) no Hoare annotation was computed. [2018-11-10 10:46:24,684 INFO L425 ceAbstractionStarter]: For program point L92-2(lines 92 101) no Hoare annotation was computed. [2018-11-10 10:46:24,684 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 98) no Hoare annotation was computed. [2018-11-10 10:46:24,684 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 84 104) no Hoare annotation was computed. [2018-11-10 10:46:24,685 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 84 104) no Hoare annotation was computed. [2018-11-10 10:46:24,685 INFO L425 ceAbstractionStarter]: For program point L98(line 98) no Hoare annotation was computed. [2018-11-10 10:46:24,685 INFO L425 ceAbstractionStarter]: For program point L64(lines 64 73) no Hoare annotation was computed. [2018-11-10 10:46:24,685 INFO L425 ceAbstractionStarter]: For program point L32(lines 32 33) no Hoare annotation was computed. [2018-11-10 10:46:24,685 INFO L425 ceAbstractionStarter]: For program point L53-1(lines 53 62) no Hoare annotation was computed. [2018-11-10 10:46:24,685 INFO L421 ceAbstractionStarter]: At program point L53-3(lines 53 62) the Hoare annotation is: (and (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (not (bvslt __ieee754_sqrtf_~ix~0 (_ bv0 32))) (= (fp ((_ extract 31 31) __ieee754_sqrtf_~ix~0) ((_ extract 30 23) __ieee754_sqrtf_~ix~0) ((_ extract 22 0) __ieee754_sqrtf_~ix~0)) |__ieee754_sqrtf_#in~x|))) (= |__ieee754_sqrtf_#in~x| __ieee754_sqrtf_~x) (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= (bvand __ieee754_sqrtf_~ix~0 (_ bv2147483647 32)) __ieee754_sqrtf_~hx~0) (= (fp ((_ extract 31 31) __ieee754_sqrtf_~ix~0) ((_ extract 30 23) __ieee754_sqrtf_~ix~0) ((_ extract 22 0) __ieee754_sqrtf_~ix~0)) __ieee754_sqrtf_~x)))) [2018-11-10 10:46:24,685 INFO L425 ceAbstractionStarter]: For program point L53-4(lines 17 82) no Hoare annotation was computed. [2018-11-10 10:46:24,685 INFO L428 ceAbstractionStarter]: At program point __ieee754_sqrtfENTRY(lines 17 82) the Hoare annotation is: true [2018-11-10 10:46:24,685 INFO L425 ceAbstractionStarter]: For program point L45(lines 45 46) no Hoare annotation was computed. [2018-11-10 10:46:24,685 INFO L425 ceAbstractionStarter]: For program point L45-2(lines 45 46) no Hoare annotation was computed. [2018-11-10 10:46:24,685 INFO L425 ceAbstractionStarter]: For program point __ieee754_sqrtfFINAL(lines 17 82) no Hoare annotation was computed. [2018-11-10 10:46:24,685 INFO L425 ceAbstractionStarter]: For program point L66(lines 66 72) no Hoare annotation was computed. [2018-11-10 10:46:24,685 INFO L425 ceAbstractionStarter]: For program point L29(lines 29 30) no Hoare annotation was computed. [2018-11-10 10:46:24,685 INFO L425 ceAbstractionStarter]: For program point __ieee754_sqrtfEXIT(lines 17 82) no Hoare annotation was computed. [2018-11-10 10:46:24,685 INFO L425 ceAbstractionStarter]: For program point L38(lines 38 42) no Hoare annotation was computed. [2018-11-10 10:46:24,686 INFO L425 ceAbstractionStarter]: For program point L38-2(lines 38 42) no Hoare annotation was computed. [2018-11-10 10:46:24,686 INFO L425 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2018-11-10 10:46:24,686 INFO L425 ceAbstractionStarter]: For program point L55(lines 55 59) no Hoare annotation was computed. [2018-11-10 10:46:24,686 INFO L425 ceAbstractionStarter]: For program point L22-1(lines 22 26) no Hoare annotation was computed. [2018-11-10 10:46:24,686 INFO L425 ceAbstractionStarter]: For program point L55-2(lines 55 59) no Hoare annotation was computed. [2018-11-10 10:46:24,686 INFO L421 ceAbstractionStarter]: At program point L22-3(lines 22 26) the Hoare annotation is: (= |__ieee754_sqrtf_#in~x| __ieee754_sqrtf_~x) [2018-11-10 10:46:24,686 INFO L425 ceAbstractionStarter]: For program point L22-4(lines 22 26) no Hoare annotation was computed. [2018-11-10 10:46:24,686 INFO L425 ceAbstractionStarter]: For program point L76-1(lines 76 80) no Hoare annotation was computed. [2018-11-10 10:46:24,686 INFO L421 ceAbstractionStarter]: At program point L76-3(lines 76 80) the Hoare annotation is: (and (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (not (bvslt __ieee754_sqrtf_~ix~0 (_ bv0 32))) (= (fp ((_ extract 31 31) __ieee754_sqrtf_~ix~0) ((_ extract 30 23) __ieee754_sqrtf_~ix~0) ((_ extract 22 0) __ieee754_sqrtf_~ix~0)) |__ieee754_sqrtf_#in~x|))) (= |__ieee754_sqrtf_#in~x| __ieee754_sqrtf_~x) (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= (bvand __ieee754_sqrtf_~ix~0 (_ bv2147483647 32)) __ieee754_sqrtf_~hx~0) (= (fp ((_ extract 31 31) __ieee754_sqrtf_~ix~0) ((_ extract 30 23) __ieee754_sqrtf_~ix~0) ((_ extract 22 0) __ieee754_sqrtf_~ix~0)) __ieee754_sqrtf_~x)))) [2018-11-10 10:46:24,686 INFO L425 ceAbstractionStarter]: For program point L76-4(lines 76 80) no Hoare annotation was computed. [2018-11-10 10:46:24,686 INFO L425 ceAbstractionStarter]: For program point L39-1(lines 39 40) no Hoare annotation was computed. [2018-11-10 10:46:24,686 INFO L425 ceAbstractionStarter]: For program point L39-3(lines 39 40) no Hoare annotation was computed. [2018-11-10 10:46:24,686 INFO L425 ceAbstractionStarter]: For program point L68(lines 68 71) no Hoare annotation was computed. [2018-11-10 10:46:24,686 INFO L421 ceAbstractionStarter]: At program point L39-4(lines 39 40) the Hoare annotation is: (and (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (not (bvslt __ieee754_sqrtf_~ix~0 (_ bv0 32))) (= (fp ((_ extract 31 31) __ieee754_sqrtf_~ix~0) ((_ extract 30 23) __ieee754_sqrtf_~ix~0) ((_ extract 22 0) __ieee754_sqrtf_~ix~0)) |__ieee754_sqrtf_#in~x|))) (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= (bvand __ieee754_sqrtf_~ix~0 (_ bv2147483647 32)) __ieee754_sqrtf_~hx~0) (= (fp ((_ extract 31 31) __ieee754_sqrtf_~ix~0) ((_ extract 30 23) __ieee754_sqrtf_~ix~0) ((_ extract 22 0) __ieee754_sqrtf_~ix~0)) __ieee754_sqrtf_~x))) (= |__ieee754_sqrtf_#in~x| __ieee754_sqrtf_~x)) [2018-11-10 10:46:24,687 INFO L425 ceAbstractionStarter]: For program point L39-5(lines 39 40) no Hoare annotation was computed. [2018-11-10 10:46:24,690 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,691 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,691 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,691 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,692 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,692 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,692 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,692 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,696 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,696 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,697 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,697 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,697 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,697 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,697 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,697 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,698 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,698 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,698 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,698 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,698 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,698 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,699 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,699 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,699 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,699 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,699 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,699 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,700 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,700 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,700 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,700 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,701 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,701 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,701 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,701 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,701 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,701 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,702 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,702 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,702 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,703 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,703 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,703 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,703 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,703 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,703 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,704 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 10:46:24 BoogieIcfgContainer [2018-11-10 10:46:24,705 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 10:46:24,706 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 10:46:24,706 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 10:46:24,706 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 10:46:24,707 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 10:40:51" (3/4) ... [2018-11-10 10:46:24,709 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 10:46:24,715 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-11-10 10:46:24,715 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 10:46:24,715 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 10:46:24,715 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_sqrtf [2018-11-10 10:46:24,719 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2018-11-10 10:46:24,720 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2018-11-10 10:46:24,720 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-10 10:46:24,736 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-10 10:46:24,737 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists __ieee754_sqrtf_~ix~0 : bv32 :: !~bvslt32(__ieee754_sqrtf_~ix~0, 0bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32) == hx && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == x)) && \old(x) == x [2018-11-10 10:46:24,737 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists __ieee754_sqrtf_~ix~0 : bv32 :: !~bvslt32(__ieee754_sqrtf_~ix~0, 0bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) && \old(x) == x) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32) == hx && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == x) [2018-11-10 10:46:24,737 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists __ieee754_sqrtf_~ix~0 : bv32 :: !~bvslt32(__ieee754_sqrtf_~ix~0, 0bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) && \old(x) == x) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32) == hx && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == x) [2018-11-10 10:46:24,759 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_6af63a9d-b032-47c0-94ad-777e38309723/bin-2019/utaipan/witness.graphml [2018-11-10 10:46:24,759 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 10:46:24,760 INFO L168 Benchmark]: Toolchain (without parser) took 334430.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.5 MB). Free memory was 949.8 MB in the beginning and 902.2 MB in the end (delta: 47.6 MB). Peak memory consumption was 209.1 MB. Max. memory is 11.5 GB. [2018-11-10 10:46:24,760 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 10:46:24,760 INFO L168 Benchmark]: CACSL2BoogieTranslator took 198.77 ms. Allocated memory is still 1.0 GB. Free memory was 949.8 MB in the beginning and 933.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-10 10:46:24,761 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.25 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 10:46:24,761 INFO L168 Benchmark]: Boogie Preprocessor took 22.14 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 10:46:24,761 INFO L168 Benchmark]: RCFGBuilder took 808.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.5 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -191.0 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. [2018-11-10 10:46:24,761 INFO L168 Benchmark]: TraceAbstraction took 333315.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 908.8 MB in the end (delta: 215.8 MB). Peak memory consumption was 215.8 MB. Max. memory is 11.5 GB. [2018-11-10 10:46:24,761 INFO L168 Benchmark]: Witness Printer took 53.16 ms. Allocated memory is still 1.2 GB. Free memory was 908.8 MB in the beginning and 902.2 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-11-10 10:46:24,762 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 198.77 ms. Allocated memory is still 1.0 GB. Free memory was 949.8 MB in the beginning and 933.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.25 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.14 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 808.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.5 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -191.0 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 333315.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 908.8 MB in the end (delta: 215.8 MB). Peak memory consumption was 215.8 MB. Max. memory is 11.5 GB. * Witness Printer took 53.16 ms. Allocated memory is still 1.2 GB. Free memory was 908.8 MB in the beginning and 902.2 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 98]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 76]: Loop Invariant [2018-11-10 10:46:24,766 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,766 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,766 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,766 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,766 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,766 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,767 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,767 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,767 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,767 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,767 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,768 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,768 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,768 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,768 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,768 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] Derived loop invariant: ((\exists __ieee754_sqrtf_~ix~0 : bv32 :: !~bvslt32(__ieee754_sqrtf_~ix~0, 0bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) && \old(x) == x) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32) == hx && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == x) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 39]: Loop Invariant [2018-11-10 10:46:24,769 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,769 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,769 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,769 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,769 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,770 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,770 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,770 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,770 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,770 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,770 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,771 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,771 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,771 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,771 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,771 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] Derived loop invariant: ((\exists __ieee754_sqrtf_~ix~0 : bv32 :: !~bvslt32(__ieee754_sqrtf_~ix~0, 0bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32) == hx && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == x)) && \old(x) == x - InvariantResult [Line: 53]: Loop Invariant [2018-11-10 10:46:24,772 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,772 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,772 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,772 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,772 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,772 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,773 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,773 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,773 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,773 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,773 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,774 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,774 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,774 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,774 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 10:46:24,774 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] Derived loop invariant: ((\exists __ieee754_sqrtf_~ix~0 : bv32 :: !~bvslt32(__ieee754_sqrtf_~ix~0, 0bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) && \old(x) == x) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32) == hx && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == x) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 49 locations, 1 error locations. SAFE Result, 333.2s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 289.3s AutomataDifference, 0.0s DeadEndRemovalTime, 13.3s HoareAnnotationTime, HoareTripleCheckerStatistics: 225 SDtfs, 254 SDslu, 642 SDs, 0 SdLazy, 225 SolverSat, 14 SolverUnsat, 87 SolverUnknown, 0 SolverNotchecked, 194.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 133 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 53.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 12 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 16 PreInvPairs, 23 NumberOfFragments, 136 HoareAnnotationTreeSize, 16 FomulaSimplifications, 243 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 99 FormulaSimplificationTreeSizeReductionInter, 13.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 29.9s InterpolantComputationTime, 125 NumberOfCodeBlocks, 125 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 120 ConstructedInterpolants, 26 QuantifiedInterpolants, 19146 SizeOfPredicates, 28 NumberOfNonLiveVariables, 404 ConjunctsInSsa, 43 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...