./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0720_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_2aaebd35-36c1-4aa6-badc-7fe095ea8692/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_2aaebd35-36c1-4aa6-badc-7fe095ea8692/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_2aaebd35-36c1-4aa6-badc-7fe095ea8692/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_2aaebd35-36c1-4aa6-badc-7fe095ea8692/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0720_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_2aaebd35-36c1-4aa6-badc-7fe095ea8692/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_2aaebd35-36c1-4aa6-badc-7fe095ea8692/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 2099bda96984d0e4445a07fd627008694b409440 .................................................................................................................................................................................................................................................................................................................................................................................. 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_2aaebd35-36c1-4aa6-badc-7fe095ea8692/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_2aaebd35-36c1-4aa6-badc-7fe095ea8692/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_2aaebd35-36c1-4aa6-badc-7fe095ea8692/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_2aaebd35-36c1-4aa6-badc-7fe095ea8692/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0720_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_2aaebd35-36c1-4aa6-badc-7fe095ea8692/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_2aaebd35-36c1-4aa6-badc-7fe095ea8692/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 2099bda96984d0e4445a07fd627008694b409440 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 13:32:45,444 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 13:32:45,445 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 13:32:45,451 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 13:32:45,451 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 13:32:45,452 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 13:32:45,453 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 13:32:45,454 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 13:32:45,455 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 13:32:45,456 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 13:32:45,456 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 13:32:45,456 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 13:32:45,457 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 13:32:45,458 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 13:32:45,458 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 13:32:45,459 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 13:32:45,459 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 13:32:45,460 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 13:32:45,461 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 13:32:45,462 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 13:32:45,463 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 13:32:45,464 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 13:32:45,465 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 13:32:45,465 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 13:32:45,465 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 13:32:45,466 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 13:32:45,467 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 13:32:45,467 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 13:32:45,467 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 13:32:45,468 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 13:32:45,468 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 13:32:45,468 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 13:32:45,469 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 13:32:45,469 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 13:32:45,469 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 13:32:45,470 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 13:32:45,470 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_2aaebd35-36c1-4aa6-badc-7fe095ea8692/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-10 13:32:45,477 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 13:32:45,477 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 13:32:45,478 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 13:32:45,478 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 13:32:45,478 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 13:32:45,478 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 13:32:45,478 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 13:32:45,478 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 13:32:45,478 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 13:32:45,478 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 13:32:45,479 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 13:32:45,479 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 13:32:45,479 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 13:32:45,479 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 13:32:45,480 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 13:32:45,480 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 13:32:45,480 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 13:32:45,480 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 13:32:45,480 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 13:32:45,480 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 13:32:45,480 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 13:32:45,480 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 13:32:45,481 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 13:32:45,481 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 13:32:45,481 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 13:32:45,481 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 13:32:45,481 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 13:32:45,481 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 13:32:45,481 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 13:32:45,482 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 13:32:45,482 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 13:32:45,482 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 13:32:45,482 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 13:32:45,482 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 13:32:45,482 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_2aaebd35-36c1-4aa6-badc-7fe095ea8692/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 -> 2099bda96984d0e4445a07fd627008694b409440 [2018-11-10 13:32:45,505 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 13:32:45,514 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 13:32:45,516 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 13:32:45,518 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 13:32:45,518 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 13:32:45,518 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_2aaebd35-36c1-4aa6-badc-7fe095ea8692/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0720_true-unreach-call.c [2018-11-10 13:32:45,555 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2aaebd35-36c1-4aa6-badc-7fe095ea8692/bin-2019/utaipan/data/45f567899/d61f00d2c5ef42abb133aa68a1a58fde/FLAG716806208 [2018-11-10 13:32:45,966 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 13:32:45,966 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_2aaebd35-36c1-4aa6-badc-7fe095ea8692/sv-benchmarks/c/float-newlib/float_req_bl_0720_true-unreach-call.c [2018-11-10 13:32:45,972 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2aaebd35-36c1-4aa6-badc-7fe095ea8692/bin-2019/utaipan/data/45f567899/d61f00d2c5ef42abb133aa68a1a58fde/FLAG716806208 [2018-11-10 13:32:45,982 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_2aaebd35-36c1-4aa6-badc-7fe095ea8692/bin-2019/utaipan/data/45f567899/d61f00d2c5ef42abb133aa68a1a58fde [2018-11-10 13:32:45,985 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 13:32:45,986 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 13:32:45,987 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 13:32:45,987 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 13:32:45,990 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 13:32:45,990 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:32:45" (1/1) ... [2018-11-10 13:32:45,992 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 01:32:45, skipping insertion in model container [2018-11-10 13:32:45,992 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:32:45" (1/1) ... [2018-11-10 13:32:46,000 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 13:32:46,017 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 13:32:46,121 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 13:32:46,124 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 13:32:46,142 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 13:32:46,154 INFO L193 MainTranslator]: Completed translation [2018-11-10 13:32:46,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:32:46 WrapperNode [2018-11-10 13:32:46,154 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 13:32:46,155 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 13:32:46,155 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 13:32:46,155 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 13:32:46,160 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:32:46" (1/1) ... [2018-11-10 13:32:46,165 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:32:46" (1/1) ... [2018-11-10 13:32:46,179 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 13:32:46,180 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 13:32:46,180 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 13:32:46,180 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 13:32:46,185 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:32:46" (1/1) ... [2018-11-10 13:32:46,186 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:32:46" (1/1) ... [2018-11-10 13:32:46,187 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:32:46" (1/1) ... [2018-11-10 13:32:46,187 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:32:46" (1/1) ... [2018-11-10 13:32:46,191 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:32:46" (1/1) ... [2018-11-10 13:32:46,232 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:32:46" (1/1) ... [2018-11-10 13:32:46,233 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:32:46" (1/1) ... [2018-11-10 13:32:46,235 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 13:32:46,236 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 13:32:46,236 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 13:32:46,236 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 13:32:46,236 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:32:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2aaebd35-36c1-4aa6-badc-7fe095ea8692/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 13:32:46,267 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 13:32:46,268 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 13:32:46,268 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-10 13:32:46,268 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-10 13:32:46,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 13:32:46,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 13:32:46,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 13:32:46,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 13:32:46,268 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-11-10 13:32:46,269 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-11-10 13:32:46,505 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 13:32:46,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:32:46 BoogieIcfgContainer [2018-11-10 13:32:46,506 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 13:32:46,507 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 13:32:46,507 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 13:32:46,509 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 13:32:46,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 01:32:45" (1/3) ... [2018-11-10 13:32:46,510 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@115f40a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:32:46, skipping insertion in model container [2018-11-10 13:32:46,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:32:46" (2/3) ... [2018-11-10 13:32:46,510 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@115f40a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:32:46, skipping insertion in model container [2018-11-10 13:32:46,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:32:46" (3/3) ... [2018-11-10 13:32:46,512 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0720_true-unreach-call.c [2018-11-10 13:32:46,518 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 13:32:46,523 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 13:32:46,532 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 13:32:46,551 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 13:32:46,552 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 13:32:46,552 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 13:32:46,552 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 13:32:46,552 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 13:32:46,552 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 13:32:46,552 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 13:32:46,552 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 13:32:46,564 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states. [2018-11-10 13:32:46,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-10 13:32:46,568 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:32:46,568 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 13:32:46,570 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:32:46,574 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:32:46,575 INFO L82 PathProgramCache]: Analyzing trace with hash -345588552, now seen corresponding path program 1 times [2018-11-10 13:32:46,576 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 13:32:46,605 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:32:46,605 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:32:46,605 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:32:46,605 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 13:32:46,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:32:46,656 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 13:32:46,657 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:32:46,657 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 13:32:46,657 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 13:32:46,660 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 13:32:46,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 13:32:46,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 13:32:46,669 INFO L87 Difference]: Start difference. First operand 48 states. Second operand 2 states. [2018-11-10 13:32:46,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:32:46,683 INFO L93 Difference]: Finished difference Result 88 states and 122 transitions. [2018-11-10 13:32:46,684 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 13:32:46,684 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-11-10 13:32:46,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:32:46,692 INFO L225 Difference]: With dead ends: 88 [2018-11-10 13:32:46,692 INFO L226 Difference]: Without dead ends: 44 [2018-11-10 13:32:46,694 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 13:32:46,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-11-10 13:32:46,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-11-10 13:32:46,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-11-10 13:32:46,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 54 transitions. [2018-11-10 13:32:46,718 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 54 transitions. Word has length 21 [2018-11-10 13:32:46,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:32:46,719 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 54 transitions. [2018-11-10 13:32:46,719 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 13:32:46,719 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 54 transitions. [2018-11-10 13:32:46,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-10 13:32:46,719 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:32:46,719 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 13:32:46,720 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:32:46,720 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:32:46,720 INFO L82 PathProgramCache]: Analyzing trace with hash -1450739581, now seen corresponding path program 1 times [2018-11-10 13:32:46,720 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 13:32:46,721 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:32:46,721 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:32:46,721 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:32:46,721 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 13:32:46,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 13:32:46,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 13:32:46,783 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 13:32:46,792 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:32:46,792 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 13:32:46,792 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:32:46,793 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 13:32:46,793 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:32:46,793 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 13:32:46,793 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:32:46,793 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 13:32:46,794 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:32:46,794 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 13:32:46,794 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:32:46,794 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 13:32:46,794 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:32:46,794 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 13:32:46,795 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:32:46,795 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 13:32:46,795 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:32:46,795 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 13:32:46,795 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:32:46,795 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 13:32:46,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 01:32:46 BoogieIcfgContainer [2018-11-10 13:32:46,805 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 13:32:46,805 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 13:32:46,805 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 13:32:46,806 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 13:32:46,806 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:32:46" (3/4) ... [2018-11-10 13:32:46,808 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 13:32:46,808 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 13:32:46,809 INFO L168 Benchmark]: Toolchain (without parser) took 823.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 960.3 MB in the beginning and 1.1 GB in the end (delta: -118.3 MB). Peak memory consumption was 19.1 MB. Max. memory is 11.5 GB. [2018-11-10 13:32:46,810 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 13:32:46,810 INFO L168 Benchmark]: CACSL2BoogieTranslator took 168.01 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 945.8 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. [2018-11-10 13:32:46,810 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.72 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 13:32:46,811 INFO L168 Benchmark]: Boogie Preprocessor took 55.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -188.4 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2018-11-10 13:32:46,811 INFO L168 Benchmark]: RCFGBuilder took 270.51 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2018-11-10 13:32:46,812 INFO L168 Benchmark]: TraceAbstraction took 298.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. [2018-11-10 13:32:46,812 INFO L168 Benchmark]: Witness Printer took 2.85 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 13:32:46,814 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 168.01 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 945.8 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 24.72 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 55.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -188.4 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * RCFGBuilder took 270.51 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 298.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. * Witness Printer took 2.85 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.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 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 96]: 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 someBinaryArithmeticFLOAToperation at line 30, overapproximation of bitwiseAnd at line 27. Possible FailurePath: [L15] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; VAL [\old(one_sqrt)=6442450951, \old(tiny_sqrt)=6442450946, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L91] float x = 0.0f / 0.0f; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L92] 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] [L92] EXPR __ieee754_sqrtf(x) VAL [__ieee754_sqrtf(x)=6442450948, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6442450947] [L92] float res = __ieee754_sqrtf(x); [L95] CALL, EXPR isnan_float(res) VAL [\old(x)=6442450948, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L13] RET return x != x; VAL [\old(x)=6442450948, \result=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6442450948] [L95] EXPR isnan_float(res) VAL [isnan_float(res)=0, one_sqrt=1, res=6442450948, tiny_sqrt=1/1000000000000000000000000000000, x=6442450947] [L95] COND TRUE !isnan_float(res) [L96] __VERIFIER_error() VAL [one_sqrt=1, res=6442450948, tiny_sqrt=1/1000000000000000000000000000000, x=6442450947] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 48 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 58 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=48occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 400 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-1dbac8b [2018-11-10 13:32:48,157 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 13:32:48,158 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 13:32:48,165 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 13:32:48,165 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 13:32:48,166 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 13:32:48,167 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 13:32:48,168 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 13:32:48,169 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 13:32:48,170 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 13:32:48,170 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 13:32:48,170 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 13:32:48,171 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 13:32:48,172 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 13:32:48,172 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 13:32:48,173 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 13:32:48,174 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 13:32:48,175 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 13:32:48,176 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 13:32:48,177 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 13:32:48,178 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 13:32:48,179 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 13:32:48,180 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 13:32:48,180 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 13:32:48,181 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 13:32:48,181 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 13:32:48,182 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 13:32:48,182 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 13:32:48,183 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 13:32:48,184 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 13:32:48,184 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 13:32:48,184 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 13:32:48,184 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 13:32:48,185 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 13:32:48,185 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 13:32:48,186 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 13:32:48,186 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_2aaebd35-36c1-4aa6-badc-7fe095ea8692/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-10 13:32:48,196 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 13:32:48,196 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 13:32:48,197 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 13:32:48,197 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 13:32:48,197 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 13:32:48,197 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 13:32:48,197 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 13:32:48,198 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 13:32:48,198 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 13:32:48,198 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 13:32:48,198 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 13:32:48,199 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 13:32:48,199 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 13:32:48,199 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 13:32:48,199 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 13:32:48,199 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-10 13:32:48,199 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-10 13:32:48,199 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 13:32:48,199 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 13:32:48,200 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 13:32:48,200 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 13:32:48,200 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 13:32:48,200 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 13:32:48,200 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 13:32:48,200 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 13:32:48,200 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 13:32:48,201 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 13:32:48,201 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 13:32:48,201 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-10 13:32:48,201 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 13:32:48,201 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-10 13:32:48,201 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-10 13:32:48,201 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_2aaebd35-36c1-4aa6-badc-7fe095ea8692/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 -> 2099bda96984d0e4445a07fd627008694b409440 [2018-11-10 13:32:48,229 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 13:32:48,237 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 13:32:48,239 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 13:32:48,240 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 13:32:48,240 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 13:32:48,240 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_2aaebd35-36c1-4aa6-badc-7fe095ea8692/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0720_true-unreach-call.c [2018-11-10 13:32:48,273 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2aaebd35-36c1-4aa6-badc-7fe095ea8692/bin-2019/utaipan/data/c8b17e274/860effa45577406bab713b4bf7c17ebd/FLAG887eb46ac [2018-11-10 13:32:48,661 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 13:32:48,661 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_2aaebd35-36c1-4aa6-badc-7fe095ea8692/sv-benchmarks/c/float-newlib/float_req_bl_0720_true-unreach-call.c [2018-11-10 13:32:48,666 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2aaebd35-36c1-4aa6-badc-7fe095ea8692/bin-2019/utaipan/data/c8b17e274/860effa45577406bab713b4bf7c17ebd/FLAG887eb46ac [2018-11-10 13:32:48,675 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_2aaebd35-36c1-4aa6-badc-7fe095ea8692/bin-2019/utaipan/data/c8b17e274/860effa45577406bab713b4bf7c17ebd [2018-11-10 13:32:48,677 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 13:32:48,678 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 13:32:48,679 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 13:32:48,679 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 13:32:48,682 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 13:32:48,682 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:32:48" (1/1) ... [2018-11-10 13:32:48,684 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37f8d87e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:32:48, skipping insertion in model container [2018-11-10 13:32:48,684 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:32:48" (1/1) ... [2018-11-10 13:32:48,690 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 13:32:48,705 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 13:32:48,835 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 13:32:48,839 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 13:32:48,863 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 13:32:48,882 INFO L193 MainTranslator]: Completed translation [2018-11-10 13:32:48,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:32:48 WrapperNode [2018-11-10 13:32:48,883 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 13:32:48,883 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 13:32:48,883 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 13:32:48,884 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 13:32:48,890 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:32:48" (1/1) ... [2018-11-10 13:32:48,899 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:32:48" (1/1) ... [2018-11-10 13:32:48,917 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 13:32:48,918 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 13:32:48,918 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 13:32:48,918 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 13:32:48,925 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:32:48" (1/1) ... [2018-11-10 13:32:48,925 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:32:48" (1/1) ... [2018-11-10 13:32:48,929 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:32:48" (1/1) ... [2018-11-10 13:32:48,929 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:32:48" (1/1) ... [2018-11-10 13:32:48,934 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:32:48" (1/1) ... [2018-11-10 13:32:48,938 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:32:48" (1/1) ... [2018-11-10 13:32:48,940 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:32:48" (1/1) ... [2018-11-10 13:32:48,943 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 13:32:48,944 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 13:32:48,944 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 13:32:48,944 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 13:32:48,944 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:32:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2aaebd35-36c1-4aa6-badc-7fe095ea8692/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 13:32:49,036 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 13:32:49,036 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 13:32:49,036 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-10 13:32:49,036 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-10 13:32:49,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 13:32:49,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 13:32:49,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 13:32:49,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 13:32:49,037 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-11-10 13:32:49,037 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-11-10 13:32:49,205 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 13:32:49,630 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 13:32:49,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:32:49 BoogieIcfgContainer [2018-11-10 13:32:49,630 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 13:32:49,631 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 13:32:49,631 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 13:32:49,633 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 13:32:49,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 01:32:48" (1/3) ... [2018-11-10 13:32:49,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c7593 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:32:49, skipping insertion in model container [2018-11-10 13:32:49,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:32:48" (2/3) ... [2018-11-10 13:32:49,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c7593 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:32:49, skipping insertion in model container [2018-11-10 13:32:49,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:32:49" (3/3) ... [2018-11-10 13:32:49,636 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0720_true-unreach-call.c [2018-11-10 13:32:49,642 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 13:32:49,646 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 13:32:49,654 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 13:32:49,675 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 13:32:49,675 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 13:32:49,675 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 13:32:49,675 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 13:32:49,675 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 13:32:49,676 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 13:32:49,676 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 13:32:49,676 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 13:32:49,676 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 13:32:49,685 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2018-11-10 13:32:49,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-10 13:32:49,689 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:32:49,689 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:32:49,691 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:32:49,694 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:32:49,694 INFO L82 PathProgramCache]: Analyzing trace with hash -655235433, now seen corresponding path program 1 times [2018-11-10 13:32:49,696 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 13:32:49,696 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2aaebd35-36c1-4aa6-badc-7fe095ea8692/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 13:32:49,700 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:32:49,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:32:49,804 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 13:32:49,819 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 13:32:49,819 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 13:32:49,832 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:32:49,832 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 13:32:49,834 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 13:32:49,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 13:32:49,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 13:32:49,843 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 2 states. [2018-11-10 13:32:49,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:32:49,857 INFO L93 Difference]: Finished difference Result 86 states and 120 transitions. [2018-11-10 13:32:49,857 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 13:32:49,858 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2018-11-10 13:32:49,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:32:49,865 INFO L225 Difference]: With dead ends: 86 [2018-11-10 13:32:49,865 INFO L226 Difference]: Without dead ends: 43 [2018-11-10 13:32:49,867 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 13:32:49,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-11-10 13:32:49,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2018-11-10 13:32:49,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-11-10 13:32:49,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 53 transitions. [2018-11-10 13:32:49,890 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 53 transitions. Word has length 20 [2018-11-10 13:32:49,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:32:49,890 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 53 transitions. [2018-11-10 13:32:49,891 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 13:32:49,891 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 53 transitions. [2018-11-10 13:32:49,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-10 13:32:49,891 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:32:49,891 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 13:32:49,892 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:32:49,892 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:32:49,892 INFO L82 PathProgramCache]: Analyzing trace with hash 23230409, now seen corresponding path program 1 times [2018-11-10 13:32:49,893 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 13:32:49,893 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2aaebd35-36c1-4aa6-badc-7fe095ea8692/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 13:32:49,901 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:32:50,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:32:50,009 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 13:32:50,922 WARN L179 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2018-11-10 13:32:51,595 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 13:32:51,596 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 13:32:51,604 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:32:51,605 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-10 13:32:51,606 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-10 13:32:51,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-10 13:32:51,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-10 13:32:51,606 INFO L87 Difference]: Start difference. First operand 43 states and 53 transitions. Second operand 9 states. [2018-11-10 13:32:53,794 WARN L179 SmtUtils]: Spent 658.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-11-10 13:32:55,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:32:55,529 INFO L93 Difference]: Finished difference Result 50 states and 60 transitions. [2018-11-10 13:32:55,530 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-10 13:32:55,530 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2018-11-10 13:32:55,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:32:55,531 INFO L225 Difference]: With dead ends: 50 [2018-11-10 13:32:55,531 INFO L226 Difference]: Without dead ends: 43 [2018-11-10 13:32:55,532 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-11-10 13:32:55,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-11-10 13:32:55,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2018-11-10 13:32:55,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-11-10 13:32:55,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 52 transitions. [2018-11-10 13:32:55,544 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 52 transitions. Word has length 21 [2018-11-10 13:32:55,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:32:55,544 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 52 transitions. [2018-11-10 13:32:55,544 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-10 13:32:55,544 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 52 transitions. [2018-11-10 13:32:55,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-10 13:32:55,545 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:32:55,545 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 13:32:55,546 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:32:55,546 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:32:55,546 INFO L82 PathProgramCache]: Analyzing trace with hash -1375817575, now seen corresponding path program 1 times [2018-11-10 13:32:55,546 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 13:32:55,546 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2aaebd35-36c1-4aa6-badc-7fe095ea8692/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 13:32:55,550 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:32:55,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:32:55,583 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 13:32:55,661 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 13:32:55,661 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 13:32:55,668 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:32:55,668 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-10 13:32:55,669 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 13:32:55,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 13:32:55,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-10 13:32:55,669 INFO L87 Difference]: Start difference. First operand 43 states and 52 transitions. Second operand 7 states. [2018-11-10 13:32:56,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:32:56,580 INFO L93 Difference]: Finished difference Result 59 states and 68 transitions. [2018-11-10 13:32:56,581 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-10 13:32:56,581 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2018-11-10 13:32:56,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:32:56,583 INFO L225 Difference]: With dead ends: 59 [2018-11-10 13:32:56,584 INFO L226 Difference]: Without dead ends: 49 [2018-11-10 13:32:56,584 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 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 13:32:56,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-11-10 13:32:56,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 43. [2018-11-10 13:32:56,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-11-10 13:32:56,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 51 transitions. [2018-11-10 13:32:56,590 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 51 transitions. Word has length 22 [2018-11-10 13:32:56,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:32:56,591 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 51 transitions. [2018-11-10 13:32:56,591 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 13:32:56,591 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 51 transitions. [2018-11-10 13:32:56,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-10 13:32:56,592 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:32:56,592 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 13:32:56,592 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:32:56,592 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:32:56,592 INFO L82 PathProgramCache]: Analyzing trace with hash 1712281157, now seen corresponding path program 1 times [2018-11-10 13:32:56,593 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 13:32:56,593 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2aaebd35-36c1-4aa6-badc-7fe095ea8692/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 13:32:56,596 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:32:56,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:32:56,769 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 13:32:58,386 WARN L179 SmtUtils]: Spent 418.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2018-11-10 13:33:00,292 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 13:33:00,292 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 13:33:00,306 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:33:00,306 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-10 13:33:00,306 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-10 13:33:00,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-10 13:33:00,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-10 13:33:00,307 INFO L87 Difference]: Start difference. First operand 43 states and 51 transitions. Second operand 9 states. [2018-11-10 13:33:03,205 WARN L179 SmtUtils]: Spent 934.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-11-10 13:33:06,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:33:06,145 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2018-11-10 13:33:06,145 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-10 13:33:06,146 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2018-11-10 13:33:06,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:33:06,146 INFO L225 Difference]: With dead ends: 50 [2018-11-10 13:33:06,147 INFO L226 Difference]: Without dead ends: 43 [2018-11-10 13:33:06,147 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-11-10 13:33:06,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-11-10 13:33:06,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2018-11-10 13:33:06,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-11-10 13:33:06,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 50 transitions. [2018-11-10 13:33:06,151 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 50 transitions. Word has length 23 [2018-11-10 13:33:06,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:33:06,151 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 50 transitions. [2018-11-10 13:33:06,151 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-10 13:33:06,152 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 50 transitions. [2018-11-10 13:33:06,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-10 13:33:06,152 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:33:06,152 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] [2018-11-10 13:33:06,152 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:33:06,152 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:33:06,153 INFO L82 PathProgramCache]: Analyzing trace with hash -684876234, now seen corresponding path program 1 times [2018-11-10 13:33:06,153 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 13:33:06,153 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2aaebd35-36c1-4aa6-badc-7fe095ea8692/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 13:33:06,156 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:33:06,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:33:06,208 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 13:33:06,295 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 13:33:06,295 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 13:33:06,302 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:33:06,303 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-10 13:33:06,303 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 13:33:06,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 13:33:06,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-10 13:33:06,303 INFO L87 Difference]: Start difference. First operand 43 states and 50 transitions. Second operand 7 states. [2018-11-10 13:33:06,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:33:06,565 INFO L93 Difference]: Finished difference Result 47 states and 55 transitions. [2018-11-10 13:33:06,566 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-10 13:33:06,566 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2018-11-10 13:33:06,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:33:06,567 INFO L225 Difference]: With dead ends: 47 [2018-11-10 13:33:06,567 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 13:33:06,567 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-11-10 13:33:06,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 13:33:06,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 13:33:06,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 13:33:06,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 13:33:06,568 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2018-11-10 13:33:06,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:33:06,568 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 13:33:06,568 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 13:33:06,568 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 13:33:06,568 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 13:33:06,571 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 13:33:06,700 INFO L425 ceAbstractionStarter]: For program point isnan_floatFINAL(line 13) no Hoare annotation was computed. [2018-11-10 13:33:06,700 INFO L428 ceAbstractionStarter]: At program point isnan_floatENTRY(line 13) the Hoare annotation is: true [2018-11-10 13:33:06,700 INFO L425 ceAbstractionStarter]: For program point isnan_floatEXIT(line 13) no Hoare annotation was computed. [2018-11-10 13:33:06,700 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-10 13:33:06,700 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-10 13:33:06,700 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 13:33:06,701 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 13:33:06,701 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 13:33:06,701 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 13:33:06,701 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 13:33:06,701 INFO L425 ceAbstractionStarter]: For program point L96(line 96) no Hoare annotation was computed. [2018-11-10 13:33:06,701 INFO L421 ceAbstractionStarter]: At program point L95(line 95) the Hoare annotation is: (let ((.cse0 (fp.div RNE (_ +zero 8 24) (_ +zero 8 24)))) (and (= .cse0 main_~x~0) (= main_~res~0 (fp.add RNE (fp.mul RNE .cse0 .cse0) .cse0)))) [2018-11-10 13:33:06,701 INFO L425 ceAbstractionStarter]: For program point L95-1(lines 95 98) no Hoare annotation was computed. [2018-11-10 13:33:06,701 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 84 101) the Hoare annotation is: true [2018-11-10 13:33:06,701 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 84 101) no Hoare annotation was computed. [2018-11-10 13:33:06,702 INFO L421 ceAbstractionStarter]: At program point L92(line 92) the Hoare annotation is: (= (fp.div RNE (_ +zero 8 24) (_ +zero 8 24)) main_~x~0) [2018-11-10 13:33:06,702 INFO L425 ceAbstractionStarter]: For program point L92-1(line 92) no Hoare annotation was computed. [2018-11-10 13:33:06,702 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 84 101) no Hoare annotation was computed. [2018-11-10 13:33:06,702 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 96) no Hoare annotation was computed. [2018-11-10 13:33:06,702 INFO L425 ceAbstractionStarter]: For program point L64(lines 64 73) no Hoare annotation was computed. [2018-11-10 13:33:06,702 INFO L425 ceAbstractionStarter]: For program point L32(lines 32 33) no Hoare annotation was computed. [2018-11-10 13:33:06,702 INFO L425 ceAbstractionStarter]: For program point L53-1(lines 53 62) no Hoare annotation was computed. [2018-11-10 13:33:06,702 INFO L421 ceAbstractionStarter]: At program point L53-3(lines 53 62) the Hoare annotation is: (and (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_#in~x|))) (= |__ieee754_sqrtf_#in~x| __ieee754_sqrtf_~x) (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (bvult (bvand __ieee754_sqrtf_~ix~0 (_ bv2147483647 32)) (_ bv2139095040 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|)))) [2018-11-10 13:33:06,703 INFO L425 ceAbstractionStarter]: For program point L53-4(lines 17 82) no Hoare annotation was computed. [2018-11-10 13:33:06,703 INFO L428 ceAbstractionStarter]: At program point __ieee754_sqrtfENTRY(lines 17 82) the Hoare annotation is: true [2018-11-10 13:33:06,703 INFO L425 ceAbstractionStarter]: For program point L45(lines 45 46) no Hoare annotation was computed. [2018-11-10 13:33:06,703 INFO L425 ceAbstractionStarter]: For program point L45-2(lines 45 46) no Hoare annotation was computed. [2018-11-10 13:33:06,703 INFO L425 ceAbstractionStarter]: For program point __ieee754_sqrtfFINAL(lines 17 82) no Hoare annotation was computed. [2018-11-10 13:33:06,703 INFO L425 ceAbstractionStarter]: For program point L66(lines 66 72) no Hoare annotation was computed. [2018-11-10 13:33:06,703 INFO L425 ceAbstractionStarter]: For program point L29(lines 29 30) no Hoare annotation was computed. [2018-11-10 13:33:06,703 INFO L425 ceAbstractionStarter]: For program point __ieee754_sqrtfEXIT(lines 17 82) no Hoare annotation was computed. [2018-11-10 13:33:06,703 INFO L425 ceAbstractionStarter]: For program point L38(lines 38 42) no Hoare annotation was computed. [2018-11-10 13:33:06,703 INFO L425 ceAbstractionStarter]: For program point L38-2(lines 38 42) no Hoare annotation was computed. [2018-11-10 13:33:06,704 INFO L425 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2018-11-10 13:33:06,704 INFO L425 ceAbstractionStarter]: For program point L55(lines 55 59) no Hoare annotation was computed. [2018-11-10 13:33:06,704 INFO L425 ceAbstractionStarter]: For program point L22-1(lines 22 26) no Hoare annotation was computed. [2018-11-10 13:33:06,704 INFO L425 ceAbstractionStarter]: For program point L55-2(lines 55 59) no Hoare annotation was computed. [2018-11-10 13:33:06,704 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 13:33:06,704 INFO L425 ceAbstractionStarter]: For program point L22-4(lines 22 26) no Hoare annotation was computed. [2018-11-10 13:33:06,704 INFO L425 ceAbstractionStarter]: For program point L76-1(lines 76 80) no Hoare annotation was computed. [2018-11-10 13:33:06,704 INFO L421 ceAbstractionStarter]: At program point L76-3(lines 76 80) the Hoare annotation is: (and (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_#in~x|))) (= |__ieee754_sqrtf_#in~x| __ieee754_sqrtf_~x) (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (bvult (bvand __ieee754_sqrtf_~ix~0 (_ bv2147483647 32)) (_ bv2139095040 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|)))) [2018-11-10 13:33:06,704 INFO L425 ceAbstractionStarter]: For program point L76-4(lines 76 80) no Hoare annotation was computed. [2018-11-10 13:33:06,704 INFO L425 ceAbstractionStarter]: For program point L39-1(lines 39 40) no Hoare annotation was computed. [2018-11-10 13:33:06,705 INFO L425 ceAbstractionStarter]: For program point L39-3(lines 39 40) no Hoare annotation was computed. [2018-11-10 13:33:06,705 INFO L425 ceAbstractionStarter]: For program point L68(lines 68 71) no Hoare annotation was computed. [2018-11-10 13:33:06,705 INFO L421 ceAbstractionStarter]: At program point L39-4(lines 39 40) the Hoare annotation is: (and (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_#in~x|))) (= |__ieee754_sqrtf_#in~x| __ieee754_sqrtf_~x) (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (bvult (bvand __ieee754_sqrtf_~ix~0 (_ bv2147483647 32)) (_ bv2139095040 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|)))) [2018-11-10 13:33:06,705 INFO L425 ceAbstractionStarter]: For program point L39-5(lines 39 40) no Hoare annotation was computed. [2018-11-10 13:33:06,709 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,710 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,710 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,710 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,710 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,711 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,711 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,711 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,715 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,716 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,716 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,716 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,716 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,716 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,716 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,716 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,717 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,717 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,717 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,718 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,718 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,718 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,718 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,718 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,718 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,719 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,719 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,719 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,719 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,719 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,719 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,719 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,720 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,720 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,720 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,720 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,721 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,721 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,721 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,721 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,722 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,722 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,722 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,722 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,722 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,723 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,723 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,723 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 01:33:06 BoogieIcfgContainer [2018-11-10 13:33:06,725 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 13:33:06,725 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 13:33:06,725 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 13:33:06,725 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 13:33:06,726 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:32:49" (3/4) ... [2018-11-10 13:33:06,729 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 13:33:06,734 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-11-10 13:33:06,734 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 13:33:06,735 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 13:33:06,735 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_sqrtf [2018-11-10 13:33:06,739 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2018-11-10 13:33:06,739 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2018-11-10 13:33:06,740 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-10 13:33:06,757 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-10 13:33:06,757 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\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]) == \old(x)) && \old(x) == x) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvult32(~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32), 2139095040bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) [2018-11-10 13:33:06,757 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\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]) == \old(x)) && \old(x) == x) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvult32(~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32), 2139095040bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) [2018-11-10 13:33:06,758 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\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]) == \old(x)) && \old(x) == x) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvult32(~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32), 2139095040bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) [2018-11-10 13:33:06,779 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_2aaebd35-36c1-4aa6-badc-7fe095ea8692/bin-2019/utaipan/witness.graphml [2018-11-10 13:33:06,779 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 13:33:06,780 INFO L168 Benchmark]: Toolchain (without parser) took 18102.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.7 MB). Free memory was 950.8 MB in the beginning and 919.9 MB in the end (delta: 30.9 MB). Peak memory consumption was 197.7 MB. Max. memory is 11.5 GB. [2018-11-10 13:33:06,781 INFO L168 Benchmark]: CDTParser took 0.12 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 13:33:06,781 INFO L168 Benchmark]: CACSL2BoogieTranslator took 203.91 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 934.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-10 13:33:06,781 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.27 ms. Allocated memory is still 1.0 GB. Free memory is still 934.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 13:33:06,781 INFO L168 Benchmark]: Boogie Preprocessor took 25.46 ms. Allocated memory is still 1.0 GB. Free memory is still 934.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 13:33:06,781 INFO L168 Benchmark]: RCFGBuilder took 687.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.7 MB). Free memory was 934.7 MB in the beginning and 1.1 GB in the end (delta: -194.2 MB). Peak memory consumption was 21.7 MB. Max. memory is 11.5 GB. [2018-11-10 13:33:06,782 INFO L168 Benchmark]: TraceAbstraction took 17093.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 926.5 MB in the end (delta: 202.4 MB). Peak memory consumption was 202.4 MB. Max. memory is 11.5 GB. [2018-11-10 13:33:06,782 INFO L168 Benchmark]: Witness Printer took 54.40 ms. Allocated memory is still 1.2 GB. Free memory was 926.5 MB in the beginning and 919.9 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-11-10 13:33:06,783 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 203.91 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 934.7 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 34.27 ms. Allocated memory is still 1.0 GB. Free memory is still 934.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.46 ms. Allocated memory is still 1.0 GB. Free memory is still 934.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 687.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.7 MB). Free memory was 934.7 MB in the beginning and 1.1 GB in the end (delta: -194.2 MB). Peak memory consumption was 21.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 17093.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 926.5 MB in the end (delta: 202.4 MB). Peak memory consumption was 202.4 MB. Max. memory is 11.5 GB. * Witness Printer took 54.40 ms. Allocated memory is still 1.2 GB. Free memory was 926.5 MB in the beginning and 919.9 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: 96]: 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 13:33:06,786 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,786 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,786 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,786 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,787 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,787 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,787 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,787 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,787 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,787 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,787 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,787 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,788 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,788 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,788 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,788 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 :: ~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]) == \old(x)) && \old(x) == x) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvult32(~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32), 2139095040bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 39]: Loop Invariant [2018-11-10 13:33:06,788 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,788 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,788 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,788 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,789 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,789 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,789 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,789 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,789 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,789 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,789 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,789 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,789 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,790 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,790 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,790 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 :: ~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]) == \old(x)) && \old(x) == x) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvult32(~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32), 2139095040bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) - InvariantResult [Line: 53]: Loop Invariant [2018-11-10 13:33:06,790 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,790 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,790 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,790 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,790 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,790 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,791 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,791 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,791 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,791 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,791 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,792 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,792 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,792 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,792 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-10 13:33:06,792 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 :: ~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]) == \old(x)) && \old(x) == x) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvult32(~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32), 2139095040bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 47 locations, 1 error locations. SAFE Result, 17.0s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 10.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 220 SDtfs, 265 SDslu, 750 SDs, 0 SdLazy, 206 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 131 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 10.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred 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, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 16 PreInvPairs, 23 NumberOfFragments, 148 HoareAnnotationTreeSize, 16 FomulaSimplifications, 146 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 32 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 5.3s InterpolantComputationTime, 120 NumberOfCodeBlocks, 120 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 115 ConstructedInterpolants, 20 QuantifiedInterpolants, 17923 SizeOfPredicates, 24 NumberOfNonLiveVariables, 399 ConjunctsInSsa, 41 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...