./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0620b_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_3487f8b0-fbba-4895-bd93-4e796a695421/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3487f8b0-fbba-4895-bd93-4e796a695421/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3487f8b0-fbba-4895-bd93-4e796a695421/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3487f8b0-fbba-4895-bd93-4e796a695421/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0620b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_3487f8b0-fbba-4895-bd93-4e796a695421/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3487f8b0-fbba-4895-bd93-4e796a695421/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 fd8280e6c85ab06c5ea4e924d9eaa3661cb56ac8 .......................................................................................................................................................................................................................................................................................................................................................... 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_3487f8b0-fbba-4895-bd93-4e796a695421/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3487f8b0-fbba-4895-bd93-4e796a695421/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3487f8b0-fbba-4895-bd93-4e796a695421/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3487f8b0-fbba-4895-bd93-4e796a695421/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0620b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_3487f8b0-fbba-4895-bd93-4e796a695421/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3487f8b0-fbba-4895-bd93-4e796a695421/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 fd8280e6c85ab06c5ea4e924d9eaa3661cb56ac8 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-03 03:49:05,437 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 03:49:05,438 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 03:49:05,445 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 03:49:05,445 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 03:49:05,445 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 03:49:05,446 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 03:49:05,447 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 03:49:05,449 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 03:49:05,449 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 03:49:05,450 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-03 03:49:05,450 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-03 03:49:05,451 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-03 03:49:05,451 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-03 03:49:05,452 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-03 03:49:05,453 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-03 03:49:05,453 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-03 03:49:05,455 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-03 03:49:05,456 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-03 03:49:05,457 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-03 03:49:05,458 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-03 03:49:05,458 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-03 03:49:05,460 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-03 03:49:05,460 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-03 03:49:05,460 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-03 03:49:05,461 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-03 03:49:05,461 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-03 03:49:05,462 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-03 03:49:05,463 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-03 03:49:05,463 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-03 03:49:05,463 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-03 03:49:05,464 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-03 03:49:05,464 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-03 03:49:05,464 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-03 03:49:05,465 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-03 03:49:05,465 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-03 03:49:05,465 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3487f8b0-fbba-4895-bd93-4e796a695421/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-03 03:49:05,474 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 03:49:05,474 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 03:49:05,475 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 03:49:05,475 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 03:49:05,475 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 03:49:05,475 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 03:49:05,475 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-03 03:49:05,475 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-03 03:49:05,476 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-03 03:49:05,476 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-03 03:49:05,476 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-03 03:49:05,476 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-03 03:49:05,476 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 03:49:05,477 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 03:49:05,477 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 03:49:05,477 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-03 03:49:05,477 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 03:49:05,477 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 03:49:05,477 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 03:49:05,477 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 03:49:05,477 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 03:49:05,477 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 03:49:05,477 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 03:49:05,477 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 03:49:05,478 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 03:49:05,478 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 03:49:05,478 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-03 03:49:05,478 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 03:49:05,478 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 03:49:05,478 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 03:49:05,478 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 03:49:05,478 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 03:49:05,479 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-03 03:49:05,479 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 03:49:05,479 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-03 03:49:05,479 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-03 03:49:05,479 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_3487f8b0-fbba-4895-bd93-4e796a695421/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 -> fd8280e6c85ab06c5ea4e924d9eaa3661cb56ac8 [2018-12-03 03:49:05,503 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 03:49:05,511 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 03:49:05,514 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 03:49:05,515 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-03 03:49:05,515 INFO L276 PluginConnector]: CDTParser initialized [2018-12-03 03:49:05,515 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3487f8b0-fbba-4895-bd93-4e796a695421/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0620b_true-unreach-call.c [2018-12-03 03:49:05,552 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3487f8b0-fbba-4895-bd93-4e796a695421/bin-2019/utaipan/data/1b6249a51/57b920bf71f141af9eba43615bbdf0f3/FLAGa2ddb5339 [2018-12-03 03:49:05,954 INFO L307 CDTParser]: Found 1 translation units. [2018-12-03 03:49:05,955 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3487f8b0-fbba-4895-bd93-4e796a695421/sv-benchmarks/c/float-newlib/float_req_bl_0620b_true-unreach-call.c [2018-12-03 03:49:05,959 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3487f8b0-fbba-4895-bd93-4e796a695421/bin-2019/utaipan/data/1b6249a51/57b920bf71f141af9eba43615bbdf0f3/FLAGa2ddb5339 [2018-12-03 03:49:05,966 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3487f8b0-fbba-4895-bd93-4e796a695421/bin-2019/utaipan/data/1b6249a51/57b920bf71f141af9eba43615bbdf0f3 [2018-12-03 03:49:05,968 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 03:49:05,969 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-03 03:49:05,969 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-03 03:49:05,969 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-03 03:49:05,971 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-03 03:49:05,972 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:49:05" (1/1) ... [2018-12-03 03:49:05,973 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@286a6d0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:49:05, skipping insertion in model container [2018-12-03 03:49:05,973 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:49:05" (1/1) ... [2018-12-03 03:49:05,978 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-03 03:49:05,993 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-03 03:49:06,107 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 03:49:06,111 INFO L191 MainTranslator]: Completed pre-run [2018-12-03 03:49:06,133 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 03:49:06,175 INFO L195 MainTranslator]: Completed translation [2018-12-03 03:49:06,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:49:06 WrapperNode [2018-12-03 03:49:06,176 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-03 03:49:06,176 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 03:49:06,176 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 03:49:06,176 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 03:49:06,181 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:49:06" (1/1) ... [2018-12-03 03:49:06,188 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:49:06" (1/1) ... [2018-12-03 03:49:06,192 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 03:49:06,192 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 03:49:06,193 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 03:49:06,193 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 03:49:06,199 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:49:06" (1/1) ... [2018-12-03 03:49:06,199 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:49:06" (1/1) ... [2018-12-03 03:49:06,201 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:49:06" (1/1) ... [2018-12-03 03:49:06,201 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:49:06" (1/1) ... [2018-12-03 03:49:06,210 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:49:06" (1/1) ... [2018-12-03 03:49:06,213 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:49:06" (1/1) ... [2018-12-03 03:49:06,215 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:49:06" (1/1) ... [2018-12-03 03:49:06,216 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 03:49:06,217 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 03:49:06,217 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 03:49:06,217 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 03:49:06,217 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:49:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3487f8b0-fbba-4895-bd93-4e796a695421/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 03:49:06,248 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-03 03:49:06,248 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-03 03:49:06,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-03 03:49:06,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-03 03:49:06,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-03 03:49:06,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-03 03:49:06,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-03 03:49:06,249 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-12-03 03:49:06,249 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-12-03 03:49:06,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-03 03:49:06,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-03 03:49:06,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-03 03:49:06,249 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-03 03:49:06,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2018-12-03 03:49:06,249 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-12-03 03:49:06,249 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-12-03 03:49:06,249 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2018-12-03 03:49:06,249 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2018-12-03 03:49:06,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-03 03:49:06,443 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-03 03:49:06,443 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-12-03 03:49:06,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:49:06 BoogieIcfgContainer [2018-12-03 03:49:06,444 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 03:49:06,444 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-03 03:49:06,444 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-03 03:49:06,447 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-03 03:49:06,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 03:49:05" (1/3) ... [2018-12-03 03:49:06,448 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dc072a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 03:49:06, skipping insertion in model container [2018-12-03 03:49:06,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:49:06" (2/3) ... [2018-12-03 03:49:06,448 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dc072a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 03:49:06, skipping insertion in model container [2018-12-03 03:49:06,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:49:06" (3/3) ... [2018-12-03 03:49:06,450 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0620b_true-unreach-call.c [2018-12-03 03:49:06,456 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-03 03:49:06,460 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-03 03:49:06,470 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-03 03:49:06,491 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-03 03:49:06,491 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-03 03:49:06,491 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-03 03:49:06,491 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-03 03:49:06,491 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-03 03:49:06,491 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-03 03:49:06,491 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-03 03:49:06,491 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-03 03:49:06,503 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2018-12-03 03:49:06,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-03 03:49:06,507 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 03:49:06,507 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 03:49:06,509 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 03:49:06,513 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 03:49:06,513 INFO L82 PathProgramCache]: Analyzing trace with hash -1775699146, now seen corresponding path program 1 times [2018-12-03 03:49:06,515 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 03:49:06,545 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 03:49:06,545 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 03:49:06,545 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 03:49:06,545 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 03:49:06,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 03:49:06,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 03:49:06,627 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 03:49:06,627 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-03 03:49:06,627 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 03:49:06,630 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-03 03:49:06,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-03 03:49:06,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-03 03:49:06,639 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 2 states. [2018-12-03 03:49:06,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 03:49:06,655 INFO L93 Difference]: Finished difference Result 100 states and 142 transitions. [2018-12-03 03:49:06,655 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-03 03:49:06,655 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-12-03 03:49:06,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 03:49:06,661 INFO L225 Difference]: With dead ends: 100 [2018-12-03 03:49:06,661 INFO L226 Difference]: Without dead ends: 50 [2018-12-03 03:49:06,663 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-03 03:49:06,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-12-03 03:49:06,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2018-12-03 03:49:06,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-12-03 03:49:06,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 61 transitions. [2018-12-03 03:49:06,685 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 61 transitions. Word has length 18 [2018-12-03 03:49:06,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 03:49:06,686 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 61 transitions. [2018-12-03 03:49:06,686 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-03 03:49:06,686 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 61 transitions. [2018-12-03 03:49:06,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-03 03:49:06,686 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 03:49:06,686 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 03:49:06,687 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 03:49:06,687 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 03:49:06,687 INFO L82 PathProgramCache]: Analyzing trace with hash 1046652015, now seen corresponding path program 1 times [2018-12-03 03:49:06,687 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 03:49:06,688 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 03:49:06,688 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 03:49:06,688 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 03:49:06,688 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 03:49:06,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-03 03:49:06,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-03 03:49:06,740 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-03 03:49:06,756 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 6442450965 could not be translated for associated CType ARRAY#_4_~FLOAT# [2018-12-03 03:49:06,756 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 6442450966 could not be translated for associated CType ARRAY#_11_~FLOAT# [2018-12-03 03:49:06,757 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 6442450957 could not be translated for associated CType ARRAY#_4_~FLOAT# [2018-12-03 03:49:06,757 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 6442450961 could not be translated for associated CType ARRAY#_11_~FLOAT# [2018-12-03 03:49:06,757 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 6442450952 could not be translated for associated CType ARRAY#_4_~FLOAT# [2018-12-03 03:49:06,757 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 6442450963 could not be translated for associated CType ARRAY#_4_~FLOAT# [2018-12-03 03:49:06,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 03:49:06 BoogieIcfgContainer [2018-12-03 03:49:06,764 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-03 03:49:06,764 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-03 03:49:06,764 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-03 03:49:06,765 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-03 03:49:06,765 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:49:06" (3/4) ... [2018-12-03 03:49:06,767 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-03 03:49:06,767 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-03 03:49:06,768 INFO L168 Benchmark]: Toolchain (without parser) took 799.27 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.3 MB). Free memory was 955.1 MB in the beginning and 1.0 GB in the end (delta: -85.4 MB). Peak memory consumption was 28.9 MB. Max. memory is 11.5 GB. [2018-12-03 03:49:06,769 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 981.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 03:49:06,769 INFO L168 Benchmark]: CACSL2BoogieTranslator took 206.57 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.3 MB). Free memory was 955.1 MB in the beginning and 1.1 GB in the end (delta: -153.9 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. [2018-12-03 03:49:06,769 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.29 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 03:49:06,769 INFO L168 Benchmark]: Boogie Preprocessor took 23.96 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-12-03 03:49:06,770 INFO L168 Benchmark]: RCFGBuilder took 226.98 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.5 MB). Peak memory consumption was 25.5 MB. Max. memory is 11.5 GB. [2018-12-03 03:49:06,770 INFO L168 Benchmark]: TraceAbstraction took 319.86 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 39.6 MB). Peak memory consumption was 39.6 MB. Max. memory is 11.5 GB. [2018-12-03 03:49:06,770 INFO L168 Benchmark]: Witness Printer took 2.83 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 03:49:06,772 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 981.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 206.57 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.3 MB). Free memory was 955.1 MB in the beginning and 1.1 GB in the end (delta: -153.9 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 16.29 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.96 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 226.98 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.5 MB). Peak memory consumption was 25.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 319.86 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 39.6 MB). Peak memory consumption was 39.6 MB. Max. memory is 11.5 GB. * Witness Printer took 2.83 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 6442450965 could not be translated for associated CType ARRAY#_4_~FLOAT# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 6442450966 could not be translated for associated CType ARRAY#_11_~FLOAT# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 6442450957 could not be translated for associated CType ARRAY#_4_~FLOAT# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 6442450961 could not be translated for associated CType ARRAY#_11_~FLOAT# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 6442450952 could not be translated for associated CType ARRAY#_4_~FLOAT# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 6442450963 could not be translated for associated CType ARRAY#_4_~FLOAT# * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 142]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 141, overapproximation of someUnaryDOUBLEoperation at line 44, overapproximation of bitwiseAnd at line 62, overapproximation of someUnaryFLOAToperation at line 137, overapproximation of someBinaryArithmeticFLOAToperation at line 65. Possible FailurePath: [L12] static const float huge_floor = 1.0e30; [L29-L34] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L36-L41] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L43-L47] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L49-L51] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; VAL [\old(aT_atan)=null, \old(aT_atan)=null, \old(atanhi_atan)=null, \old(atanhi_atan)=null, \old(atanlo_atan)=null, \old(atanlo_atan)=null, \old(huge_atan)=6442450960, \old(huge_floor)=6442450954, \old(one_atan)=6442450945, \old(pi)=6442450955, \old(pi_o_2)=6442450946, \old(pi_o_4)=6442450950, aT_atan={6442450962:0}, atanhi_atan={6442450964:0}, atanlo_atan={6442450947:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L137] float x = -0.0f; VAL [aT_atan={6442450962:0}, atanhi_atan={6442450964:0}, atanlo_atan={6442450947:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L138] CALL, EXPR atan_float(x) VAL [\old(x)=6442450953, aT_atan={6442450962:0}, atanhi_atan={6442450964:0}, atanlo_atan={6442450947:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L54] float w, s1, s2, z; [L55] __int32_t ix, hx, id; VAL [\old(x)=6442450953, aT_atan={6442450962:0}, atanhi_atan={6442450964:0}, atanlo_atan={6442450947:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=6442450953] [L58] ieee_float_shape_type gf_u; [L59] gf_u.value = (x) [L60] EXPR gf_u.word [L60] (hx) = gf_u.word [L62] ix = hx & 0x7fffffff VAL [\old(x)=6442450953, aT_atan={6442450962:0}, atanhi_atan={6442450964:0}, atanlo_atan={6442450947:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=-2147483648, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=6442450953] [L63] COND TRUE ix >= 0x50800000 VAL [\old(x)=6442450953, aT_atan={6442450962:0}, atanhi_atan={6442450964:0}, atanlo_atan={6442450947:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=-2147483648, ix=2139095041, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=6442450953] [L64] COND TRUE ((ix) > 0x7f800000L) [L65] return x + x; VAL [\old(x)=6442450953, aT_atan={6442450962:0}, atanhi_atan={6442450964:0}, atanlo_atan={6442450947:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=-2147483648, ix=2139095041, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=6442450953] [L138] RET, EXPR atan_float(x) VAL [aT_atan={6442450962:0}, atan_float(x)=6442450958, atanhi_atan={6442450964:0}, atanlo_atan={6442450947:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=6442450953] [L138] float res = atan_float(x); [L141] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [aT_atan={6442450962:0}, atanhi_atan={6442450964:0}, atanlo_atan={6442450947:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=6442450958, res == -0.0f && __signbit_float(res) == 1=0, x=6442450953] [L141] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L142] __VERIFIER_error() VAL [aT_atan={6442450962:0}, atanhi_atan={6442450964:0}, atanlo_atan={6442450947:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=6442450958, x=6442450953] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 54 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 65 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=54occurred 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, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 289 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-635dfa2 [2018-12-03 03:49:08,139 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 03:49:08,140 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 03:49:08,146 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 03:49:08,146 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 03:49:08,147 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 03:49:08,147 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 03:49:08,148 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 03:49:08,149 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 03:49:08,149 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 03:49:08,150 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-03 03:49:08,150 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-03 03:49:08,150 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-03 03:49:08,151 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-03 03:49:08,151 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-03 03:49:08,152 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-03 03:49:08,152 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-03 03:49:08,153 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-03 03:49:08,154 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-03 03:49:08,155 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-03 03:49:08,156 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-03 03:49:08,156 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-03 03:49:08,157 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-03 03:49:08,157 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-03 03:49:08,158 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-03 03:49:08,158 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-03 03:49:08,159 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-03 03:49:08,159 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-03 03:49:08,160 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-03 03:49:08,160 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-03 03:49:08,160 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-03 03:49:08,161 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-03 03:49:08,161 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-03 03:49:08,161 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-03 03:49:08,162 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-03 03:49:08,162 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-03 03:49:08,162 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3487f8b0-fbba-4895-bd93-4e796a695421/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-03 03:49:08,169 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 03:49:08,170 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 03:49:08,170 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 03:49:08,170 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 03:49:08,170 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 03:49:08,171 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 03:49:08,171 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-03 03:49:08,171 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-03 03:49:08,171 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-03 03:49:08,171 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 03:49:08,171 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 03:49:08,171 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 03:49:08,172 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 03:49:08,172 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 03:49:08,172 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 03:49:08,172 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 03:49:08,172 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 03:49:08,172 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-03 03:49:08,172 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-03 03:49:08,172 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 03:49:08,172 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 03:49:08,173 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-03 03:49:08,173 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 03:49:08,173 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 03:49:08,173 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 03:49:08,173 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-03 03:49:08,173 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 03:49:08,173 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 03:49:08,173 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 03:49:08,174 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 03:49:08,174 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 03:49:08,174 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-03 03:49:08,174 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 03:49:08,174 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-03 03:49:08,174 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-03 03:49:08,174 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_3487f8b0-fbba-4895-bd93-4e796a695421/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 -> fd8280e6c85ab06c5ea4e924d9eaa3661cb56ac8 [2018-12-03 03:49:08,193 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 03:49:08,203 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 03:49:08,205 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 03:49:08,207 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-03 03:49:08,207 INFO L276 PluginConnector]: CDTParser initialized [2018-12-03 03:49:08,208 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3487f8b0-fbba-4895-bd93-4e796a695421/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0620b_true-unreach-call.c [2018-12-03 03:49:08,245 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3487f8b0-fbba-4895-bd93-4e796a695421/bin-2019/utaipan/data/331564240/b29e603f887548d796ed659462debfcf/FLAG6ab1bf019 [2018-12-03 03:49:08,657 INFO L307 CDTParser]: Found 1 translation units. [2018-12-03 03:49:08,657 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3487f8b0-fbba-4895-bd93-4e796a695421/sv-benchmarks/c/float-newlib/float_req_bl_0620b_true-unreach-call.c [2018-12-03 03:49:08,662 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3487f8b0-fbba-4895-bd93-4e796a695421/bin-2019/utaipan/data/331564240/b29e603f887548d796ed659462debfcf/FLAG6ab1bf019 [2018-12-03 03:49:08,670 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3487f8b0-fbba-4895-bd93-4e796a695421/bin-2019/utaipan/data/331564240/b29e603f887548d796ed659462debfcf [2018-12-03 03:49:08,672 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 03:49:08,672 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-03 03:49:08,673 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-03 03:49:08,673 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-03 03:49:08,675 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-03 03:49:08,676 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:49:08" (1/1) ... [2018-12-03 03:49:08,677 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dc28ced and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:49:08, skipping insertion in model container [2018-12-03 03:49:08,677 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:49:08" (1/1) ... [2018-12-03 03:49:08,682 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-03 03:49:08,694 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-03 03:49:08,804 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 03:49:08,810 INFO L191 MainTranslator]: Completed pre-run [2018-12-03 03:49:08,839 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 03:49:08,856 INFO L195 MainTranslator]: Completed translation [2018-12-03 03:49:08,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:49:08 WrapperNode [2018-12-03 03:49:08,857 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-03 03:49:08,857 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 03:49:08,858 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 03:49:08,858 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 03:49:08,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:49:08" (1/1) ... [2018-12-03 03:49:08,870 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:49:08" (1/1) ... [2018-12-03 03:49:08,904 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 03:49:08,904 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 03:49:08,904 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 03:49:08,904 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 03:49:08,910 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:49:08" (1/1) ... [2018-12-03 03:49:08,910 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:49:08" (1/1) ... [2018-12-03 03:49:08,914 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:49:08" (1/1) ... [2018-12-03 03:49:08,914 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:49:08" (1/1) ... [2018-12-03 03:49:08,929 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:49:08" (1/1) ... [2018-12-03 03:49:08,934 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:49:08" (1/1) ... [2018-12-03 03:49:08,936 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:49:08" (1/1) ... [2018-12-03 03:49:08,939 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 03:49:08,939 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 03:49:08,939 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 03:49:08,939 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 03:49:08,940 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:49:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3487f8b0-fbba-4895-bd93-4e796a695421/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 03:49:08,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2018-12-03 03:49:08,973 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-03 03:49:08,973 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-03 03:49:08,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-12-03 03:49:08,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-03 03:49:08,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-03 03:49:08,973 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-12-03 03:49:08,973 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-12-03 03:49:08,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-03 03:49:08,974 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-03 03:49:08,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-03 03:49:08,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-03 03:49:08,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-12-03 03:49:08,974 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-12-03 03:49:08,974 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-12-03 03:49:08,974 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2018-12-03 03:49:08,974 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2018-12-03 03:49:08,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-03 03:49:08,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-03 03:49:09,122 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 03:49:09,145 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 03:49:09,163 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 03:49:10,847 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 03:49:17,316 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-03 03:49:17,316 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-12-03 03:49:17,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:49:17 BoogieIcfgContainer [2018-12-03 03:49:17,316 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 03:49:17,317 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-03 03:49:17,317 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-03 03:49:17,319 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-03 03:49:17,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 03:49:08" (1/3) ... [2018-12-03 03:49:17,320 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d87c180 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 03:49:17, skipping insertion in model container [2018-12-03 03:49:17,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:49:08" (2/3) ... [2018-12-03 03:49:17,321 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d87c180 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 03:49:17, skipping insertion in model container [2018-12-03 03:49:17,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:49:17" (3/3) ... [2018-12-03 03:49:17,322 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0620b_true-unreach-call.c [2018-12-03 03:49:17,329 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-03 03:49:17,334 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-03 03:49:17,344 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-03 03:49:17,362 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-03 03:49:17,362 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-03 03:49:17,362 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-03 03:49:17,362 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-03 03:49:17,363 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-03 03:49:17,363 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-03 03:49:17,363 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-03 03:49:17,363 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-03 03:49:17,363 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-03 03:49:17,373 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2018-12-03 03:49:17,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-03 03:49:17,376 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 03:49:17,377 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 03:49:17,378 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 03:49:17,381 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 03:49:17,381 INFO L82 PathProgramCache]: Analyzing trace with hash -1775699146, now seen corresponding path program 1 times [2018-12-03 03:49:17,384 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-03 03:49:17,384 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3487f8b0-fbba-4895-bd93-4e796a695421/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-12-03 03:49:17,389 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 03:49:17,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 03:49:17,497 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 03:49:17,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 03:49:17,508 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-03 03:49:17,518 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 03:49:17,518 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-03 03:49:17,520 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-03 03:49:17,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-03 03:49:17,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-03 03:49:17,529 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 2 states. [2018-12-03 03:49:17,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 03:49:17,544 INFO L93 Difference]: Finished difference Result 100 states and 142 transitions. [2018-12-03 03:49:17,544 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-03 03:49:17,545 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-12-03 03:49:17,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 03:49:17,550 INFO L225 Difference]: With dead ends: 100 [2018-12-03 03:49:17,550 INFO L226 Difference]: Without dead ends: 50 [2018-12-03 03:49:17,552 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-03 03:49:17,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-12-03 03:49:17,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2018-12-03 03:49:17,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-12-03 03:49:17,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 61 transitions. [2018-12-03 03:49:17,575 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 61 transitions. Word has length 18 [2018-12-03 03:49:17,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 03:49:17,575 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 61 transitions. [2018-12-03 03:49:17,575 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-03 03:49:17,575 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 61 transitions. [2018-12-03 03:49:17,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-03 03:49:17,576 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 03:49:17,576 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 03:49:17,576 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 03:49:17,576 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 03:49:17,576 INFO L82 PathProgramCache]: Analyzing trace with hash 1046652015, now seen corresponding path program 1 times [2018-12-03 03:49:17,577 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-03 03:49:17,577 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3487f8b0-fbba-4895-bd93-4e796a695421/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-12-03 03:49:17,580 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 03:49:17,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 03:49:17,680 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 03:49:17,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 03:49:17,764 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-03 03:49:17,772 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 03:49:17,773 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-03 03:49:17,774 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-03 03:49:17,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-03 03:49:17,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-03 03:49:17,774 INFO L87 Difference]: Start difference. First operand 50 states and 61 transitions. Second operand 7 states. [2018-12-03 03:49:30,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 03:49:30,201 INFO L93 Difference]: Finished difference Result 69 states and 80 transitions. [2018-12-03 03:49:30,247 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-03 03:49:30,247 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-12-03 03:49:30,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 03:49:30,249 INFO L225 Difference]: With dead ends: 69 [2018-12-03 03:49:30,249 INFO L226 Difference]: Without dead ends: 52 [2018-12-03 03:49:30,250 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-12-03 03:49:30,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-12-03 03:49:30,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 48. [2018-12-03 03:49:30,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-12-03 03:49:30,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 56 transitions. [2018-12-03 03:49:30,257 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 56 transitions. Word has length 19 [2018-12-03 03:49:30,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 03:49:30,257 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 56 transitions. [2018-12-03 03:49:30,258 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-03 03:49:30,258 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 56 transitions. [2018-12-03 03:49:30,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-03 03:49:30,258 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 03:49:30,259 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 03:49:30,259 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 03:49:30,259 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 03:49:30,259 INFO L82 PathProgramCache]: Analyzing trace with hash 1727555058, now seen corresponding path program 1 times [2018-12-03 03:49:30,259 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-03 03:49:30,260 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3487f8b0-fbba-4895-bd93-4e796a695421/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-12-03 03:49:30,263 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 03:49:30,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 03:49:30,367 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 03:49:30,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 03:49:30,413 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-03 03:49:30,423 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 03:49:30,424 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-03 03:49:30,424 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-03 03:49:30,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-03 03:49:30,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-03 03:49:30,424 INFO L87 Difference]: Start difference. First operand 48 states and 56 transitions. Second operand 7 states. [2018-12-03 03:49:36,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 03:49:36,768 INFO L93 Difference]: Finished difference Result 56 states and 64 transitions. [2018-12-03 03:49:36,769 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-03 03:49:36,769 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2018-12-03 03:49:36,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 03:49:36,770 INFO L225 Difference]: With dead ends: 56 [2018-12-03 03:49:36,770 INFO L226 Difference]: Without dead ends: 53 [2018-12-03 03:49:36,770 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-12-03 03:49:36,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-12-03 03:49:36,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 52. [2018-12-03 03:49:36,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-12-03 03:49:36,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 60 transitions. [2018-12-03 03:49:36,775 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 60 transitions. Word has length 21 [2018-12-03 03:49:36,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 03:49:36,775 INFO L480 AbstractCegarLoop]: Abstraction has 52 states and 60 transitions. [2018-12-03 03:49:36,775 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-03 03:49:36,775 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 60 transitions. [2018-12-03 03:49:36,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-03 03:49:36,776 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 03:49:36,776 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 03:49:36,776 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 03:49:36,776 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 03:49:36,776 INFO L82 PathProgramCache]: Analyzing trace with hash -225183980, now seen corresponding path program 1 times [2018-12-03 03:49:36,777 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-03 03:49:36,777 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3487f8b0-fbba-4895-bd93-4e796a695421/bin-2019/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-12-03 03:49:36,780 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 03:49:37,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 03:49:37,722 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 03:49:37,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 03:49:37,799 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-03 03:49:37,821 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 03:49:37,821 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-03 03:49:37,821 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-03 03:49:37,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-03 03:49:37,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-03 03:49:37,822 INFO L87 Difference]: Start difference. First operand 52 states and 60 transitions. Second operand 7 states. [2018-12-03 03:49:46,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 03:49:46,843 INFO L93 Difference]: Finished difference Result 74 states and 84 transitions. [2018-12-03 03:49:46,891 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-03 03:49:46,891 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2018-12-03 03:49:46,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 03:49:46,892 INFO L225 Difference]: With dead ends: 74 [2018-12-03 03:49:46,892 INFO L226 Difference]: Without dead ends: 52 [2018-12-03 03:49:46,892 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-12-03 03:49:46,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-12-03 03:49:46,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 51. [2018-12-03 03:49:46,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-12-03 03:49:46,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 55 transitions. [2018-12-03 03:49:46,897 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 55 transitions. Word has length 23 [2018-12-03 03:49:46,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 03:49:46,897 INFO L480 AbstractCegarLoop]: Abstraction has 51 states and 55 transitions. [2018-12-03 03:49:46,897 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-03 03:49:46,897 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 55 transitions. [2018-12-03 03:49:46,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-03 03:49:46,898 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 03:49:46,898 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 03:49:46,898 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 03:49:46,898 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 03:49:46,898 INFO L82 PathProgramCache]: Analyzing trace with hash 1139373451, now seen corresponding path program 1 times [2018-12-03 03:49:46,898 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-03 03:49:46,899 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3487f8b0-fbba-4895-bd93-4e796a695421/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 [2018-12-03 03:49:46,902 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 03:49:47,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 03:49:47,861 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 03:49:48,629 WARN L180 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-12-03 03:49:48,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 03:49:48,634 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-03 03:49:48,652 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 03:49:48,652 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-03 03:49:48,652 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-03 03:49:48,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-03 03:49:48,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-03 03:49:48,653 INFO L87 Difference]: Start difference. First operand 51 states and 55 transitions. Second operand 6 states. [2018-12-03 03:49:49,704 WARN L180 SmtUtils]: Spent 391.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-12-03 03:49:57,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 03:49:57,104 INFO L93 Difference]: Finished difference Result 70 states and 76 transitions. [2018-12-03 03:49:57,108 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-03 03:49:57,108 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2018-12-03 03:49:57,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 03:49:57,109 INFO L225 Difference]: With dead ends: 70 [2018-12-03 03:49:57,109 INFO L226 Difference]: Without dead ends: 50 [2018-12-03 03:49:57,109 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-12-03 03:49:57,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-12-03 03:49:57,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2018-12-03 03:49:57,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-12-03 03:49:57,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 53 transitions. [2018-12-03 03:49:57,114 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 53 transitions. Word has length 24 [2018-12-03 03:49:57,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 03:49:57,114 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 53 transitions. [2018-12-03 03:49:57,114 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-03 03:49:57,114 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 53 transitions. [2018-12-03 03:49:57,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-12-03 03:49:57,114 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 03:49:57,114 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 03:49:57,115 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 03:49:57,115 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 03:49:57,115 INFO L82 PathProgramCache]: Analyzing trace with hash -267271278, now seen corresponding path program 1 times [2018-12-03 03:49:57,115 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-03 03:49:57,115 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3487f8b0-fbba-4895-bd93-4e796a695421/bin-2019/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-12-03 03:49:57,118 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 03:49:57,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 03:49:57,230 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 03:49:57,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 03:49:57,399 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-03 03:49:57,408 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 03:49:57,408 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-12-03 03:49:57,408 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-03 03:49:57,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-03 03:49:57,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2018-12-03 03:49:57,408 INFO L87 Difference]: Start difference. First operand 50 states and 53 transitions. Second operand 12 states. [2018-12-03 03:50:03,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 03:50:03,344 INFO L93 Difference]: Finished difference Result 55 states and 58 transitions. [2018-12-03 03:50:03,344 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-03 03:50:03,344 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 29 [2018-12-03 03:50:03,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 03:50:03,345 INFO L225 Difference]: With dead ends: 55 [2018-12-03 03:50:03,345 INFO L226 Difference]: Without dead ends: 44 [2018-12-03 03:50:03,345 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2018-12-03 03:50:03,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-12-03 03:50:03,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-12-03 03:50:03,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-12-03 03:50:03,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 46 transitions. [2018-12-03 03:50:03,351 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 46 transitions. Word has length 29 [2018-12-03 03:50:03,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 03:50:03,351 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 46 transitions. [2018-12-03 03:50:03,351 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-03 03:50:03,351 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 46 transitions. [2018-12-03 03:50:03,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-12-03 03:50:03,352 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 03:50:03,352 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 03:50:03,352 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 03:50:03,352 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 03:50:03,352 INFO L82 PathProgramCache]: Analyzing trace with hash 1116416613, now seen corresponding path program 1 times [2018-12-03 03:50:03,352 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-03 03:50:03,353 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3487f8b0-fbba-4895-bd93-4e796a695421/bin-2019/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2018-12-03 03:50:03,355 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 03:50:04,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 03:50:04,526 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 03:50:04,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 03:50:04,595 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-03 03:50:04,615 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 03:50:04,616 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-03 03:50:04,616 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-03 03:50:04,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-03 03:50:04,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-03 03:50:04,616 INFO L87 Difference]: Start difference. First operand 44 states and 46 transitions. Second operand 7 states. [2018-12-03 03:50:10,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 03:50:10,354 INFO L93 Difference]: Finished difference Result 44 states and 46 transitions. [2018-12-03 03:50:10,354 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-03 03:50:10,355 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2018-12-03 03:50:10,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 03:50:10,355 INFO L225 Difference]: With dead ends: 44 [2018-12-03 03:50:10,355 INFO L226 Difference]: Without dead ends: 0 [2018-12-03 03:50:10,356 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-12-03 03:50:10,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-03 03:50:10,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-03 03:50:10,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-03 03:50:10,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-03 03:50:10,356 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2018-12-03 03:50:10,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 03:50:10,356 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-03 03:50:10,356 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-03 03:50:10,357 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-03 03:50:10,357 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-03 03:50:10,359 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-03 03:50:10,616 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-03 03:50:10,616 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-03 03:50:10,616 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-03 03:50:10,616 INFO L448 ceAbstractionStarter]: For program point fabs_floatFINAL(lines 14 27) no Hoare annotation was computed. [2018-12-03 03:50:10,616 INFO L448 ceAbstractionStarter]: For program point fabs_floatEXIT(lines 14 27) no Hoare annotation was computed. [2018-12-03 03:50:10,616 INFO L451 ceAbstractionStarter]: At program point fabs_floatENTRY(lines 14 27) the Hoare annotation is: true [2018-12-03 03:50:10,616 INFO L448 ceAbstractionStarter]: For program point L21(lines 21 25) no Hoare annotation was computed. [2018-12-03 03:50:10,616 INFO L448 ceAbstractionStarter]: For program point L21-1(lines 14 27) no Hoare annotation was computed. [2018-12-03 03:50:10,616 INFO L448 ceAbstractionStarter]: For program point L21-2(lines 21 25) no Hoare annotation was computed. [2018-12-03 03:50:10,616 INFO L448 ceAbstractionStarter]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2018-12-03 03:50:10,616 INFO L451 ceAbstractionStarter]: At program point L16-2(lines 16 20) the Hoare annotation is: true [2018-12-03 03:50:10,616 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-03 03:50:10,616 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_atan~0) (= ~one_atan~0 ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0)))) [2018-12-03 03:50:10,616 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-03 03:50:10,616 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-03 03:50:10,616 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 129 147) the Hoare annotation is: true [2018-12-03 03:50:10,617 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 129 147) no Hoare annotation was computed. [2018-12-03 03:50:10,617 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 142) no Hoare annotation was computed. [2018-12-03 03:50:10,617 INFO L448 ceAbstractionStarter]: For program point L142(line 142) no Hoare annotation was computed. [2018-12-03 03:50:10,617 INFO L448 ceAbstractionStarter]: For program point L141(line 141) no Hoare annotation was computed. [2018-12-03 03:50:10,617 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 129 147) no Hoare annotation was computed. [2018-12-03 03:50:10,617 INFO L444 ceAbstractionStarter]: At program point L141-1(line 141) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_atan~0)) (not (= ~one_atan~0 ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0)))) (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and |main_#t~short29| (= main_~res~0 .cse0) (= main_~x~0 .cse0)))) [2018-12-03 03:50:10,617 INFO L448 ceAbstractionStarter]: For program point L141-2(line 141) no Hoare annotation was computed. [2018-12-03 03:50:10,617 INFO L444 ceAbstractionStarter]: At program point L138(line 138) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_atan~0)) (not (= ~one_atan~0 ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0)))) (= main_~x~0 (fp.neg (_ +zero 8 24)))) [2018-12-03 03:50:10,617 INFO L448 ceAbstractionStarter]: For program point L138-1(line 138) no Hoare annotation was computed. [2018-12-03 03:50:10,617 INFO L448 ceAbstractionStarter]: For program point L141-4(lines 141 144) no Hoare annotation was computed. [2018-12-03 03:50:10,617 INFO L448 ceAbstractionStarter]: For program point __signbit_floatFINAL(lines 117 127) no Hoare annotation was computed. [2018-12-03 03:50:10,617 INFO L448 ceAbstractionStarter]: For program point L120-1(lines 120 124) no Hoare annotation was computed. [2018-12-03 03:50:10,617 INFO L444 ceAbstractionStarter]: At program point L120-2(lines 120 124) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_atan~0)) (= |__signbit_float_#in~x| __signbit_float_~x) (not (= ~one_atan~0 ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0))))) [2018-12-03 03:50:10,617 INFO L448 ceAbstractionStarter]: For program point L120-3(lines 120 124) no Hoare annotation was computed. [2018-12-03 03:50:10,617 INFO L451 ceAbstractionStarter]: At program point __signbit_floatENTRY(lines 117 127) the Hoare annotation is: true [2018-12-03 03:50:10,617 INFO L448 ceAbstractionStarter]: For program point __signbit_floatEXIT(lines 117 127) no Hoare annotation was computed. [2018-12-03 03:50:10,617 INFO L448 ceAbstractionStarter]: For program point L64(lines 64 65) no Hoare annotation was computed. [2018-12-03 03:50:10,618 INFO L451 ceAbstractionStarter]: At program point atan_floatENTRY(lines 53 115) the Hoare annotation is: true [2018-12-03 03:50:10,618 INFO L448 ceAbstractionStarter]: For program point atan_floatFINAL(lines 53 115) no Hoare annotation was computed. [2018-12-03 03:50:10,618 INFO L448 ceAbstractionStarter]: For program point L73(lines 73 74) no Hoare annotation was computed. [2018-12-03 03:50:10,618 INFO L448 ceAbstractionStarter]: For program point L57-1(lines 57 61) no Hoare annotation was computed. [2018-12-03 03:50:10,618 INFO L444 ceAbstractionStarter]: At program point L57-2(lines 57 61) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_atan~0)) (= |atan_float_#in~x| atan_float_~x) (not (= ~one_atan~0 ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0))))) [2018-12-03 03:50:10,618 INFO L448 ceAbstractionStarter]: For program point L57-3(lines 57 61) no Hoare annotation was computed. [2018-12-03 03:50:10,618 INFO L444 ceAbstractionStarter]: At program point L78(line 78) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_atan~0)) (and (exists ((atan_float_~hx~0 (_ BitVec 32))) (and (not (bvslt (bvand (_ bv2147483647 32) atan_float_~hx~0) (_ bv1054867456 32))) (= (fp ((_ extract 31 31) atan_float_~hx~0) ((_ extract 30 23) atan_float_~hx~0) ((_ extract 22 0) atan_float_~hx~0)) |atan_float_#in~x|))) (exists ((atan_float_~hx~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) atan_float_~hx~0) ((_ extract 30 23) atan_float_~hx~0) ((_ extract 22 0) atan_float_~hx~0)) |atan_float_#in~x|) (= (bvand (_ bv2147483647 32) atan_float_~hx~0) atan_float_~ix~1))) (= (fp ((_ extract 31 31) atan_float_~hx~0) ((_ extract 30 23) atan_float_~hx~0) ((_ extract 22 0) atan_float_~hx~0)) |atan_float_#in~x|) (= |atan_float_#in~x| atan_float_~x)) (not (= ~one_atan~0 ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0))))) [2018-12-03 03:50:10,618 INFO L448 ceAbstractionStarter]: For program point L78-1(line 78) no Hoare annotation was computed. [2018-12-03 03:50:10,618 INFO L448 ceAbstractionStarter]: For program point L66(lines 66 69) no Hoare annotation was computed. [2018-12-03 03:50:10,618 INFO L448 ceAbstractionStarter]: For program point L79(lines 79 95) no Hoare annotation was computed. [2018-12-03 03:50:10,618 INFO L448 ceAbstractionStarter]: For program point L71(lines 71 96) no Hoare annotation was computed. [2018-12-03 03:50:10,618 INFO L448 ceAbstractionStarter]: For program point atan_floatEXIT(lines 53 115) no Hoare annotation was computed. [2018-12-03 03:50:10,618 INFO L448 ceAbstractionStarter]: For program point L63(lines 63 70) no Hoare annotation was computed. [2018-12-03 03:50:10,618 INFO L448 ceAbstractionStarter]: For program point L88(lines 88 94) no Hoare annotation was computed. [2018-12-03 03:50:10,618 INFO L448 ceAbstractionStarter]: For program point L88-2(lines 71 96) no Hoare annotation was computed. [2018-12-03 03:50:10,618 INFO L448 ceAbstractionStarter]: For program point L113(line 113) no Hoare annotation was computed. [2018-12-03 03:50:10,618 INFO L448 ceAbstractionStarter]: For program point L80(lines 80 86) no Hoare annotation was computed. [2018-12-03 03:50:10,619 INFO L448 ceAbstractionStarter]: For program point L113-2(line 113) no Hoare annotation was computed. [2018-12-03 03:50:10,619 INFO L448 ceAbstractionStarter]: For program point L109(lines 109 114) no Hoare annotation was computed. [2018-12-03 03:50:10,619 INFO L448 ceAbstractionStarter]: For program point L72(lines 72 75) no Hoare annotation was computed. [2018-12-03 03:50:10,619 INFO L448 ceAbstractionStarter]: For program point L72-2(lines 72 75) no Hoare annotation was computed. [2018-12-03 03:50:10,624 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 03:50:10,624 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 03:50:10,625 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 03:50:10,625 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 03:50:10,626 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 03:50:10,626 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 03:50:10,626 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 03:50:10,627 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 03:50:10,627 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 03:50:10,627 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 03:50:10,627 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 03:50:10,627 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 03:50:10,628 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 03:50:10,628 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 03:50:10,628 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 03:50:10,628 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 03:50:10,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 03:50:10 BoogieIcfgContainer [2018-12-03 03:50:10,629 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-03 03:50:10,630 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-03 03:50:10,630 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-03 03:50:10,630 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-03 03:50:10,630 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:49:17" (3/4) ... [2018-12-03 03:50:10,633 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-03 03:50:10,637 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-03 03:50:10,637 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_float [2018-12-03 03:50:10,638 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-03 03:50:10,638 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_float [2018-12-03 03:50:10,638 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure atan_float [2018-12-03 03:50:10,641 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2018-12-03 03:50:10,641 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2018-12-03 03:50:10,641 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-12-03 03:50:10,642 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-03 03:50:10,659 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_atan) || \old(x) == x) || !(one_atan == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))) [2018-12-03 03:50:10,659 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_atan) || \old(x) == x) || !(one_atan == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))) [2018-12-03 03:50:10,682 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_3487f8b0-fbba-4895-bd93-4e796a695421/bin-2019/utaipan/witness.graphml [2018-12-03 03:50:10,682 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-03 03:50:10,683 INFO L168 Benchmark]: Toolchain (without parser) took 62010.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 197.7 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -196.8 MB). Peak memory consumption was 828.0 kB. Max. memory is 11.5 GB. [2018-12-03 03:50:10,683 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 03:50:10,683 INFO L168 Benchmark]: CACSL2BoogieTranslator took 184.10 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 928.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-12-03 03:50:10,684 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 928.6 MB in the beginning and 1.1 GB in the end (delta: -199.8 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. [2018-12-03 03:50:10,684 INFO L168 Benchmark]: Boogie Preprocessor took 34.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-12-03 03:50:10,684 INFO L168 Benchmark]: RCFGBuilder took 8377.58 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: 40.1 MB). Peak memory consumption was 40.1 MB. Max. memory is 11.5 GB. [2018-12-03 03:50:10,684 INFO L168 Benchmark]: TraceAbstraction took 53312.18 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 64.0 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -67.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 03:50:10,685 INFO L168 Benchmark]: Witness Printer took 52.35 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: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 11.5 GB. [2018-12-03 03:50:10,686 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 184.10 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 928.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 46.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 928.6 MB in the beginning and 1.1 GB in the end (delta: -199.8 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 34.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 8377.58 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: 40.1 MB). Peak memory consumption was 40.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 53312.18 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 64.0 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -67.2 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 52.35 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: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 142]: 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: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 57]: Loop Invariant [2018-12-03 03:50:10,689 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 03:50:10,689 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 03:50:10,689 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 03:50:10,689 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 03:50:10,690 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 03:50:10,690 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 03:50:10,690 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 03:50:10,690 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (!(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_atan) || \old(x) == x) || !(one_atan == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))) - InvariantResult [Line: 120]: Loop Invariant [2018-12-03 03:50:10,691 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 03:50:10,691 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 03:50:10,691 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 03:50:10,691 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 03:50:10,691 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 03:50:10,691 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 03:50:10,691 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 03:50:10,692 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (!(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_atan) || \old(x) == x) || !(one_atan == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))) - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 54 locations, 1 error locations. SAFE Result, 53.2s OverallTime, 7 OverallIterations, 1 TraceHistogramMax, 48.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 301 SDtfs, 234 SDslu, 1087 SDs, 0 SdLazy, 358 SolverSat, 28 SolverUnsat, 10 SolverUnknown, 0 SolverNotchecked, 44.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 183 GetRequests, 125 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred 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, 7 MinimizatonAttempts, 6 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 13 LocationsWithAnnotation, 25 PreInvPairs, 30 NumberOfFragments, 173 HoareAnnotationTreeSize, 25 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 13 FomulaSimplificationsInter, 245 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 3.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 167 NumberOfCodeBlocks, 167 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 160 ConstructedInterpolants, 24 QuantifiedInterpolants, 25696 SizeOfPredicates, 25 NumberOfNonLiveVariables, 987 ConjunctsInSsa, 54 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...