./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.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 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_9cc3bbf3-0b09-4cc1-9438-bf64ada299e6/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9cc3bbf3-0b09-4cc1-9438-bf64ada299e6/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9cc3bbf3-0b09-4cc1-9438-bf64ada299e6/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9cc3bbf3-0b09-4cc1-9438-bf64ada299e6/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_9cc3bbf3-0b09-4cc1-9438-bf64ada299e6/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9cc3bbf3-0b09-4cc1-9438-bf64ada299e6/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_9cc3bbf3-0b09-4cc1-9438-bf64ada299e6/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9cc3bbf3-0b09-4cc1-9438-bf64ada299e6/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9cc3bbf3-0b09-4cc1-9438-bf64ada299e6/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9cc3bbf3-0b09-4cc1-9438-bf64ada299e6/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_9cc3bbf3-0b09-4cc1-9438-bf64ada299e6/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9cc3bbf3-0b09-4cc1-9438-bf64ada299e6/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 0.1.23-5842f4b [2018-11-18 18:08:07,779 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 18:08:07,780 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 18:08:07,800 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 18:08:07,800 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 18:08:07,801 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 18:08:07,802 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 18:08:07,804 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 18:08:07,805 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 18:08:07,806 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 18:08:07,807 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 18:08:07,807 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 18:08:07,807 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 18:08:07,808 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 18:08:07,809 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 18:08:07,809 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 18:08:07,810 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 18:08:07,811 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 18:08:07,826 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 18:08:07,828 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 18:08:07,828 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 18:08:07,829 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 18:08:07,831 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 18:08:07,831 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 18:08:07,832 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 18:08:07,832 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 18:08:07,833 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 18:08:07,834 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 18:08:07,835 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 18:08:07,836 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 18:08:07,836 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 18:08:07,836 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 18:08:07,836 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 18:08:07,837 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 18:08:07,837 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 18:08:07,839 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 18:08:07,839 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9cc3bbf3-0b09-4cc1-9438-bf64ada299e6/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 18:08:07,852 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 18:08:07,854 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 18:08:07,857 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 18:08:07,857 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 18:08:07,858 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 18:08:07,858 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 18:08:07,858 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 18:08:07,858 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 18:08:07,858 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 18:08:07,858 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 18:08:07,858 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 18:08:07,859 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 18:08:07,859 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 18:08:07,859 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 18:08:07,859 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 18:08:07,859 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 18:08:07,860 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 18:08:07,860 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 18:08:07,860 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 18:08:07,860 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 18:08:07,860 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 18:08:07,860 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 18:08:07,860 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 18:08:07,860 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 18:08:07,860 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 18:08:07,861 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 18:08:07,861 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 18:08:07,861 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 18:08:07,861 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 18:08:07,861 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 18:08:07,861 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 18:08:07,865 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 18:08:07,865 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 18:08:07,865 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 18:08:07,865 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 18:08:07,865 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 18:08:07,865 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 18:08:07,866 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_9cc3bbf3-0b09-4cc1-9438-bf64ada299e6/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 [2018-11-18 18:08:07,899 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 18:08:07,916 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 18:08:07,920 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 18:08:07,921 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 18:08:07,921 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 18:08:07,922 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9cc3bbf3-0b09-4cc1-9438-bf64ada299e6/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0620b_true-unreach-call.c [2018-11-18 18:08:07,973 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9cc3bbf3-0b09-4cc1-9438-bf64ada299e6/bin-2019/utaipan/data/23a74e5f8/ebfad7d5db1f4b939f3294b543f43b76/FLAG58fbcecd3 [2018-11-18 18:08:08,348 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 18:08:08,349 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9cc3bbf3-0b09-4cc1-9438-bf64ada299e6/sv-benchmarks/c/float-newlib/float_req_bl_0620b_true-unreach-call.c [2018-11-18 18:08:08,354 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9cc3bbf3-0b09-4cc1-9438-bf64ada299e6/bin-2019/utaipan/data/23a74e5f8/ebfad7d5db1f4b939f3294b543f43b76/FLAG58fbcecd3 [2018-11-18 18:08:08,366 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9cc3bbf3-0b09-4cc1-9438-bf64ada299e6/bin-2019/utaipan/data/23a74e5f8/ebfad7d5db1f4b939f3294b543f43b76 [2018-11-18 18:08:08,368 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 18:08:08,370 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 18:08:08,370 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 18:08:08,371 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 18:08:08,373 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 18:08:08,374 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:08:08" (1/1) ... [2018-11-18 18:08:08,376 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c1fc64b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:08:08, skipping insertion in model container [2018-11-18 18:08:08,376 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:08:08" (1/1) ... [2018-11-18 18:08:08,385 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 18:08:08,405 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 18:08:08,547 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 18:08:08,554 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 18:08:08,583 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 18:08:08,598 INFO L195 MainTranslator]: Completed translation [2018-11-18 18:08:08,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:08:08 WrapperNode [2018-11-18 18:08:08,599 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 18:08:08,600 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 18:08:08,600 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 18:08:08,600 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 18:08:08,652 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:08:08" (1/1) ... [2018-11-18 18:08:08,661 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:08:08" (1/1) ... [2018-11-18 18:08:08,668 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 18:08:08,668 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 18:08:08,669 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 18:08:08,669 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 18:08:08,676 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:08:08" (1/1) ... [2018-11-18 18:08:08,676 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:08:08" (1/1) ... [2018-11-18 18:08:08,680 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:08:08" (1/1) ... [2018-11-18 18:08:08,680 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:08:08" (1/1) ... [2018-11-18 18:08:08,694 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:08:08" (1/1) ... [2018-11-18 18:08:08,700 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:08:08" (1/1) ... [2018-11-18 18:08:08,702 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:08:08" (1/1) ... [2018-11-18 18:08:08,704 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 18:08:08,705 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 18:08:08,705 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 18:08:08,705 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 18:08:08,706 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:08:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9cc3bbf3-0b09-4cc1-9438-bf64ada299e6/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 18:08:08,763 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 18:08:08,763 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 18:08:08,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-11-18 18:08:08,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-18 18:08:08,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 18:08:08,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 18:08:08,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 18:08:08,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-18 18:08:08,764 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-11-18 18:08:08,764 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-11-18 18:08:08,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 18:08:08,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 18:08:08,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 18:08:08,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 18:08:08,765 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-11-18 18:08:08,765 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-11-18 18:08:08,765 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2018-11-18 18:08:08,765 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2018-11-18 18:08:08,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 18:08:09,291 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 18:08:09,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:08:09 BoogieIcfgContainer [2018-11-18 18:08:09,292 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 18:08:09,293 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 18:08:09,293 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 18:08:09,296 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 18:08:09,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:08:08" (1/3) ... [2018-11-18 18:08:09,297 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55370859 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:08:09, skipping insertion in model container [2018-11-18 18:08:09,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:08:08" (2/3) ... [2018-11-18 18:08:09,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55370859 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:08:09, skipping insertion in model container [2018-11-18 18:08:09,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:08:09" (3/3) ... [2018-11-18 18:08:09,299 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0620b_true-unreach-call.c [2018-11-18 18:08:09,308 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 18:08:09,315 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 18:08:09,328 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 18:08:09,357 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 18:08:09,357 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 18:08:09,357 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 18:08:09,357 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 18:08:09,357 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 18:08:09,358 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 18:08:09,358 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 18:08:09,358 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 18:08:09,373 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2018-11-18 18:08:09,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-18 18:08:09,378 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 18:08:09,379 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 18:08:09,381 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 18:08:09,386 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 18:08:09,387 INFO L82 PathProgramCache]: Analyzing trace with hash 288023153, now seen corresponding path program 1 times [2018-11-18 18:08:09,389 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 18:08:09,431 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 18:08:09,432 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 18:08:09,432 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 18:08:09,432 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 18:08:09,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:08:09,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:08:09,532 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 18:08:09,533 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 18:08:09,533 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 18:08:09,537 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 18:08:09,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 18:08:09,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 18:08:09,550 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 2 states. [2018-11-18 18:08:09,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 18:08:09,571 INFO L93 Difference]: Finished difference Result 100 states and 142 transitions. [2018-11-18 18:08:09,571 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 18:08:09,572 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-11-18 18:08:09,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 18:08:09,581 INFO L225 Difference]: With dead ends: 100 [2018-11-18 18:08:09,581 INFO L226 Difference]: Without dead ends: 50 [2018-11-18 18:08:09,584 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 18:08:09,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-11-18 18:08:09,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2018-11-18 18:08:09,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-11-18 18:08:09,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 61 transitions. [2018-11-18 18:08:09,618 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 61 transitions. Word has length 18 [2018-11-18 18:08:09,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 18:08:09,619 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 61 transitions. [2018-11-18 18:08:09,619 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 18:08:09,619 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 61 transitions. [2018-11-18 18:08:09,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-18 18:08:09,620 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 18:08:09,620 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 18:08:09,620 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 18:08:09,620 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 18:08:09,620 INFO L82 PathProgramCache]: Analyzing trace with hash -1700274504, now seen corresponding path program 1 times [2018-11-18 18:08:09,620 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 18:08:09,622 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 18:08:09,622 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 18:08:09,622 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 18:08:09,622 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 18:08:09,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 18:08:09,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 18:08:09,701 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 18:08:09,725 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 6442450960 could not be translated for associated CType ARRAY#_4_~FLOAT# [2018-11-18 18:08:09,725 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 6442450956 could not be translated for associated CType ARRAY#_11_~FLOAT# [2018-11-18 18:08:09,726 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 6442450954 could not be translated for associated CType ARRAY#_4_~FLOAT# [2018-11-18 18:08:09,726 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 6442450968 could not be translated for associated CType ARRAY#_4_~FLOAT# [2018-11-18 18:08:09,726 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 6442450948 could not be translated for associated CType ARRAY#_4_~FLOAT# [2018-11-18 18:08:09,726 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 6442450952 could not be translated for associated CType ARRAY#_11_~FLOAT# [2018-11-18 18:08:09,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 06:08:09 BoogieIcfgContainer [2018-11-18 18:08:09,737 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 18:08:09,738 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 18:08:09,738 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 18:08:09,738 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 18:08:09,738 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:08:09" (3/4) ... [2018-11-18 18:08:09,741 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 18:08:09,741 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 18:08:09,742 INFO L168 Benchmark]: Toolchain (without parser) took 1372.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 171.4 MB). Free memory was 959.8 MB in the beginning and 1.1 GB in the end (delta: -136.9 MB). Peak memory consumption was 34.5 MB. Max. memory is 11.5 GB. [2018-11-18 18:08:09,743 INFO L168 Benchmark]: CDTParser took 0.48 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 18:08:09,743 INFO L168 Benchmark]: CACSL2BoogieTranslator took 228.79 ms. Allocated memory is still 1.0 GB. Free memory was 959.8 MB in the beginning and 943.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-18 18:08:09,744 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 171.4 MB). Free memory was 943.7 MB in the beginning and 1.2 GB in the end (delta: -225.1 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2018-11-18 18:08:09,745 INFO L168 Benchmark]: Boogie Preprocessor took 35.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 18:08:09,745 INFO L168 Benchmark]: RCFGBuilder took 587.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 37.2 MB). Peak memory consumption was 37.2 MB. Max. memory is 11.5 GB. [2018-11-18 18:08:09,745 INFO L168 Benchmark]: TraceAbstraction took 444.40 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: 29.5 MB). Peak memory consumption was 29.5 MB. Max. memory is 11.5 GB. [2018-11-18 18:08:09,746 INFO L168 Benchmark]: Witness Printer took 3.44 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 18:08:09,749 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 228.79 ms. Allocated memory is still 1.0 GB. Free memory was 959.8 MB in the beginning and 943.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 68.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 171.4 MB). Free memory was 943.7 MB in the beginning and 1.2 GB in the end (delta: -225.1 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 35.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 587.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 37.2 MB). Peak memory consumption was 37.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 444.40 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: 29.5 MB). Peak memory consumption was 29.5 MB. Max. memory is 11.5 GB. * Witness Printer took 3.44 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 6442450960 could not be translated for associated CType ARRAY#_4_~FLOAT# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 6442450956 could not be translated for associated CType ARRAY#_11_~FLOAT# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 6442450954 could not be translated for associated CType ARRAY#_4_~FLOAT# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 6442450968 could not be translated for associated CType ARRAY#_4_~FLOAT# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 6442450948 could not be translated for associated CType ARRAY#_4_~FLOAT# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 6442450952 could not be translated for associated CType ARRAY#_11_~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] FCALL static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L36-L41] FCALL static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L43-L47] FCALL 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)=6442450966, \old(huge_floor)=6442450961, \old(one_atan)=6442450957, \old(pi)=6442450962, \old(pi_o_2)=6442450944, \old(pi_o_4)=6442450959, aT_atan={6442450953:0}, atanhi_atan={6442450955:0}, atanlo_atan={6442450945:0}, 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={6442450953:0}, atanhi_atan={6442450955:0}, atanlo_atan={6442450945:0}, 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)=6442450947, aT_atan={6442450953:0}, atanhi_atan={6442450955:0}, atanlo_atan={6442450945:0}, 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)=6442450947, aT_atan={6442450953:0}, atanhi_atan={6442450955:0}, atanlo_atan={6442450945:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=6442450947] [L58] FCALL ieee_float_shape_type gf_u; [L59] FCALL gf_u.value = (x) [L60] EXPR, FCALL gf_u.word [L60] (hx) = gf_u.word [L61] COND FALSE !(0) VAL [\old(x)=6442450947, aT_atan={6442450953:0}, atanhi_atan={6442450955:0}, atanlo_atan={6442450945:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=2147483647, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=6442450947] [L62] ix = hx & 0x7fffffff VAL [\old(x)=6442450947, aT_atan={6442450953:0}, atanhi_atan={6442450955:0}, atanlo_atan={6442450945:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=2147483647, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=6442450947] [L63] COND TRUE ix >= 0x50800000 VAL [\old(x)=6442450947, aT_atan={6442450953:0}, atanhi_atan={6442450955:0}, atanlo_atan={6442450945:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=2147483647, ix=2139095041, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=6442450947] [L64] COND TRUE ((ix) > 0x7f800000L) [L65] RET return x + x; VAL [\old(x)=6442450947, aT_atan={6442450953:0}, atanhi_atan={6442450955:0}, atanlo_atan={6442450945:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=2147483647, ix=2139095041, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=6442450947] [L138] EXPR atan_float(x) VAL [aT_atan={6442450953:0}, atan_float(x)=6442450951, atanhi_atan={6442450955:0}, atanlo_atan={6442450945:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=6442450947] [L138] float res = atan_float(x); [L141] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [aT_atan={6442450953:0}, atanhi_atan={6442450955:0}, atanlo_atan={6442450945:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=6442450951, res == -0.0f && __signbit_float(res) == 1=0, x=6442450947] [L141] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L142] __VERIFIER_error() VAL [aT_atan={6442450953:0}, atanhi_atan={6442450955:0}, atanlo_atan={6442450945:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=6442450951, x=6442450947] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 54 locations, 1 error locations. UNSAFE Result, 0.3s 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 0.1.23-5842f4b [2018-11-18 18:08:11,499 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 18:08:11,500 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 18:08:11,528 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 18:08:11,528 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 18:08:11,529 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 18:08:11,530 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 18:08:11,532 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 18:08:11,533 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 18:08:11,534 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 18:08:11,535 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 18:08:11,535 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 18:08:11,535 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 18:08:11,536 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 18:08:11,537 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 18:08:11,538 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 18:08:11,539 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 18:08:11,540 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 18:08:11,542 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 18:08:11,543 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 18:08:11,544 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 18:08:11,545 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 18:08:11,547 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 18:08:11,547 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 18:08:11,547 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 18:08:11,548 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 18:08:11,549 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 18:08:11,549 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 18:08:11,550 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 18:08:11,551 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 18:08:11,552 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 18:08:11,552 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 18:08:11,552 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 18:08:11,552 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 18:08:11,553 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 18:08:11,553 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 18:08:11,553 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9cc3bbf3-0b09-4cc1-9438-bf64ada299e6/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-18 18:08:11,565 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 18:08:11,565 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 18:08:11,566 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 18:08:11,566 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 18:08:11,566 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 18:08:11,567 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 18:08:11,567 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 18:08:11,567 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 18:08:11,567 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 18:08:11,567 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 18:08:11,568 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 18:08:11,568 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 18:08:11,569 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 18:08:11,569 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 18:08:11,569 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 18:08:11,569 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 18:08:11,569 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 18:08:11,569 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 18:08:11,569 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 18:08:11,570 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 18:08:11,570 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 18:08:11,570 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 18:08:11,570 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 18:08:11,570 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 18:08:11,570 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 18:08:11,570 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 18:08:11,571 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 18:08:11,571 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 18:08:11,571 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 18:08:11,571 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 18:08:11,571 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 18:08:11,571 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-18 18:08:11,571 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 18:08:11,571 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 18:08:11,572 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 18:08:11,572 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_9cc3bbf3-0b09-4cc1-9438-bf64ada299e6/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 [2018-11-18 18:08:11,603 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 18:08:11,613 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 18:08:11,615 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 18:08:11,617 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 18:08:11,617 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 18:08:11,618 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9cc3bbf3-0b09-4cc1-9438-bf64ada299e6/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0620b_true-unreach-call.c [2018-11-18 18:08:11,666 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9cc3bbf3-0b09-4cc1-9438-bf64ada299e6/bin-2019/utaipan/data/fc44f7fe6/261fbc4f71c4436b944cb0d75e33932f/FLAGe7d435ba7 [2018-11-18 18:08:12,049 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 18:08:12,050 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9cc3bbf3-0b09-4cc1-9438-bf64ada299e6/sv-benchmarks/c/float-newlib/float_req_bl_0620b_true-unreach-call.c [2018-11-18 18:08:12,056 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9cc3bbf3-0b09-4cc1-9438-bf64ada299e6/bin-2019/utaipan/data/fc44f7fe6/261fbc4f71c4436b944cb0d75e33932f/FLAGe7d435ba7 [2018-11-18 18:08:12,067 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9cc3bbf3-0b09-4cc1-9438-bf64ada299e6/bin-2019/utaipan/data/fc44f7fe6/261fbc4f71c4436b944cb0d75e33932f [2018-11-18 18:08:12,069 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 18:08:12,070 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 18:08:12,071 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 18:08:12,071 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 18:08:12,073 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 18:08:12,074 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:08:12" (1/1) ... [2018-11-18 18:08:12,076 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c036b1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:08:12, skipping insertion in model container [2018-11-18 18:08:12,076 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:08:12" (1/1) ... [2018-11-18 18:08:12,083 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 18:08:12,103 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 18:08:12,270 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 18:08:12,280 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 18:08:12,323 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 18:08:12,346 INFO L195 MainTranslator]: Completed translation [2018-11-18 18:08:12,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:08:12 WrapperNode [2018-11-18 18:08:12,347 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 18:08:12,348 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 18:08:12,348 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 18:08:12,348 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 18:08:12,355 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:08:12" (1/1) ... [2018-11-18 18:08:12,365 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:08:12" (1/1) ... [2018-11-18 18:08:12,371 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 18:08:12,372 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 18:08:12,372 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 18:08:12,372 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 18:08:12,430 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:08:12" (1/1) ... [2018-11-18 18:08:12,430 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:08:12" (1/1) ... [2018-11-18 18:08:12,435 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:08:12" (1/1) ... [2018-11-18 18:08:12,435 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:08:12" (1/1) ... [2018-11-18 18:08:12,451 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:08:12" (1/1) ... [2018-11-18 18:08:12,457 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:08:12" (1/1) ... [2018-11-18 18:08:12,459 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:08:12" (1/1) ... [2018-11-18 18:08:12,462 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 18:08:12,463 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 18:08:12,463 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 18:08:12,463 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 18:08:12,464 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:08:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9cc3bbf3-0b09-4cc1-9438-bf64ada299e6/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 18:08:12,501 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 18:08:12,501 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 18:08:12,501 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-18 18:08:12,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 18:08:12,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 18:08:12,502 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-11-18 18:08:12,502 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-11-18 18:08:12,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 18:08:12,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 18:08:12,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-11-18 18:08:12,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 18:08:12,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 18:08:12,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-18 18:08:12,503 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-11-18 18:08:12,503 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-11-18 18:08:12,503 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2018-11-18 18:08:12,503 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2018-11-18 18:08:12,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 18:08:12,503 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 18:08:13,063 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 18:08:13,108 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 18:08:19,313 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 18:08:19,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:08:19 BoogieIcfgContainer [2018-11-18 18:08:19,314 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 18:08:19,314 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 18:08:19,315 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 18:08:19,317 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 18:08:19,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:08:12" (1/3) ... [2018-11-18 18:08:19,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b5b2ee2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:08:19, skipping insertion in model container [2018-11-18 18:08:19,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:08:12" (2/3) ... [2018-11-18 18:08:19,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b5b2ee2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:08:19, skipping insertion in model container [2018-11-18 18:08:19,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:08:19" (3/3) ... [2018-11-18 18:08:19,319 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0620b_true-unreach-call.c [2018-11-18 18:08:19,326 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 18:08:19,332 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 18:08:19,342 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 18:08:19,362 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 18:08:19,363 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 18:08:19,363 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 18:08:19,363 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 18:08:19,363 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 18:08:19,363 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 18:08:19,363 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 18:08:19,363 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 18:08:19,363 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 18:08:19,375 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2018-11-18 18:08:19,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-18 18:08:19,379 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 18:08:19,380 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 18:08:19,381 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 18:08:19,385 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 18:08:19,385 INFO L82 PathProgramCache]: Analyzing trace with hash 288023153, now seen corresponding path program 1 times [2018-11-18 18:08:19,388 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 18:08:19,389 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9cc3bbf3-0b09-4cc1-9438-bf64ada299e6/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-18 18:08:19,393 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 18:08:19,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:08:19,520 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 18:08:19,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:08:19,533 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 18:08:19,544 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 18:08:19,545 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 18:08:19,548 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 18:08:19,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 18:08:19,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 18:08:19,563 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 2 states. [2018-11-18 18:08:19,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 18:08:19,589 INFO L93 Difference]: Finished difference Result 100 states and 142 transitions. [2018-11-18 18:08:19,589 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 18:08:19,590 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-11-18 18:08:19,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 18:08:19,600 INFO L225 Difference]: With dead ends: 100 [2018-11-18 18:08:19,600 INFO L226 Difference]: Without dead ends: 50 [2018-11-18 18:08:19,603 INFO L604 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 [2018-11-18 18:08:19,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-11-18 18:08:19,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2018-11-18 18:08:19,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-11-18 18:08:19,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 61 transitions. [2018-11-18 18:08:19,640 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 61 transitions. Word has length 18 [2018-11-18 18:08:19,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 18:08:19,641 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 61 transitions. [2018-11-18 18:08:19,641 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 18:08:19,641 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 61 transitions. [2018-11-18 18:08:19,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-18 18:08:19,642 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 18:08:19,642 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 18:08:19,642 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 18:08:19,642 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 18:08:19,643 INFO L82 PathProgramCache]: Analyzing trace with hash -1700274504, now seen corresponding path program 1 times [2018-11-18 18:08:19,643 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 18:08:19,643 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9cc3bbf3-0b09-4cc1-9438-bf64ada299e6/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-18 18:08:19,656 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 18:08:19,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:08:19,776 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 18:08:19,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:08:19,893 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 18:08:19,902 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 18:08:19,902 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 18:08:19,904 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 18:08:19,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 18:08:19,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 18:08:19,904 INFO L87 Difference]: Start difference. First operand 50 states and 61 transitions. Second operand 7 states. [2018-11-18 18:08:29,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 18:08:29,346 INFO L93 Difference]: Finished difference Result 68 states and 79 transitions. [2018-11-18 18:08:29,389 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 18:08:29,389 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-11-18 18:08:29,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 18:08:29,392 INFO L225 Difference]: With dead ends: 68 [2018-11-18 18:08:29,392 INFO L226 Difference]: Without dead ends: 51 [2018-11-18 18:08:29,393 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-11-18 18:08:29,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-11-18 18:08:29,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 48. [2018-11-18 18:08:29,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-11-18 18:08:29,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 56 transitions. [2018-11-18 18:08:29,400 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 56 transitions. Word has length 19 [2018-11-18 18:08:29,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 18:08:29,401 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 56 transitions. [2018-11-18 18:08:29,401 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 18:08:29,401 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 56 transitions. [2018-11-18 18:08:29,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-18 18:08:29,402 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 18:08:29,402 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 18:08:29,402 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 18:08:29,403 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 18:08:29,403 INFO L82 PathProgramCache]: Analyzing trace with hash -840699269, now seen corresponding path program 1 times [2018-11-18 18:08:29,403 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 18:08:29,403 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9cc3bbf3-0b09-4cc1-9438-bf64ada299e6/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-11-18 18:08:29,407 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 18:08:29,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:08:29,524 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 18:08:29,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:08:29,606 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 18:08:29,619 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 18:08:29,619 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 18:08:29,619 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 18:08:29,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 18:08:29,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 18:08:29,620 INFO L87 Difference]: Start difference. First operand 48 states and 56 transitions. Second operand 7 states. [2018-11-18 18:08:38,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 18:08:38,454 INFO L93 Difference]: Finished difference Result 56 states and 64 transitions. [2018-11-18 18:08:38,454 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 18:08:38,454 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2018-11-18 18:08:38,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 18:08:38,455 INFO L225 Difference]: With dead ends: 56 [2018-11-18 18:08:38,455 INFO L226 Difference]: Without dead ends: 53 [2018-11-18 18:08:38,456 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-11-18 18:08:38,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-11-18 18:08:38,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 52. [2018-11-18 18:08:38,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-11-18 18:08:38,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 60 transitions. [2018-11-18 18:08:38,463 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 60 transitions. Word has length 21 [2018-11-18 18:08:38,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 18:08:38,463 INFO L480 AbstractCegarLoop]: Abstraction has 52 states and 60 transitions. [2018-11-18 18:08:38,463 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 18:08:38,463 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 60 transitions. [2018-11-18 18:08:38,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-18 18:08:38,464 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 18:08:38,464 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 18:08:38,464 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 18:08:38,465 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 18:08:38,465 INFO L82 PathProgramCache]: Analyzing trace with hash 1406813661, now seen corresponding path program 1 times [2018-11-18 18:08:38,465 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 18:08:38,465 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9cc3bbf3-0b09-4cc1-9438-bf64ada299e6/bin-2019/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-11-18 18:08:38,469 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 18:08:39,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:08:39,553 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 18:08:39,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:08:39,636 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 18:08:39,656 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 18:08:39,656 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 18:08:39,656 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 18:08:39,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 18:08:39,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 18:08:39,657 INFO L87 Difference]: Start difference. First operand 52 states and 60 transitions. Second operand 7 states. [2018-11-18 18:08:53,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 18:08:53,928 INFO L93 Difference]: Finished difference Result 74 states and 84 transitions. [2018-11-18 18:08:53,970 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 18:08:53,970 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2018-11-18 18:08:53,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 18:08:53,971 INFO L225 Difference]: With dead ends: 74 [2018-11-18 18:08:53,971 INFO L226 Difference]: Without dead ends: 52 [2018-11-18 18:08:53,972 INFO L604 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 [2018-11-18 18:08:53,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-11-18 18:08:53,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 51. [2018-11-18 18:08:53,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-11-18 18:08:53,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 55 transitions. [2018-11-18 18:08:53,979 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 55 transitions. Word has length 23 [2018-11-18 18:08:53,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 18:08:53,979 INFO L480 AbstractCegarLoop]: Abstraction has 51 states and 55 transitions. [2018-11-18 18:08:53,979 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 18:08:53,979 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 55 transitions. [2018-11-18 18:08:53,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-18 18:08:53,980 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 18:08:53,980 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 18:08:53,980 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 18:08:53,981 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 18:08:53,981 INFO L82 PathProgramCache]: Analyzing trace with hash 195386854, now seen corresponding path program 1 times [2018-11-18 18:08:53,981 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 18:08:53,981 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9cc3bbf3-0b09-4cc1-9438-bf64ada299e6/bin-2019/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-11-18 18:08:53,986 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 18:08:54,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:08:55,031 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 18:08:55,626 WARN L180 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-11-18 18:08:55,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:08:55,631 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 18:08:55,648 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 18:08:55,648 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 18:08:55,649 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 18:08:55,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 18:08:55,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-18 18:08:55,649 INFO L87 Difference]: Start difference. First operand 51 states and 55 transitions. Second operand 6 states. [2018-11-18 18:08:57,922 WARN L180 SmtUtils]: Spent 570.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-11-18 18:09:04,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 18:09:04,879 INFO L93 Difference]: Finished difference Result 70 states and 76 transitions. [2018-11-18 18:09:04,904 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 18:09:04,905 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2018-11-18 18:09:04,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 18:09:04,905 INFO L225 Difference]: With dead ends: 70 [2018-11-18 18:09:04,905 INFO L226 Difference]: Without dead ends: 50 [2018-11-18 18:09:04,906 INFO L604 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 [2018-11-18 18:09:04,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-11-18 18:09:04,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2018-11-18 18:09:04,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-11-18 18:09:04,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 53 transitions. [2018-11-18 18:09:04,913 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 53 transitions. Word has length 24 [2018-11-18 18:09:04,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 18:09:04,913 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 53 transitions. [2018-11-18 18:09:04,913 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 18:09:04,913 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 53 transitions. [2018-11-18 18:09:04,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-18 18:09:04,914 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 18:09:04,914 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 18:09:04,914 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 18:09:04,914 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 18:09:04,915 INFO L82 PathProgramCache]: Analyzing trace with hash 970509237, now seen corresponding path program 1 times [2018-11-18 18:09:04,915 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 18:09:04,915 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9cc3bbf3-0b09-4cc1-9438-bf64ada299e6/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 [2018-11-18 18:09:04,919 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 18:09:05,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:09:05,036 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 18:09:05,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:09:05,192 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 18:09:05,200 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 18:09:05,200 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-11-18 18:09:05,201 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-18 18:09:05,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-18 18:09:05,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2018-11-18 18:09:05,201 INFO L87 Difference]: Start difference. First operand 50 states and 53 transitions. Second operand 12 states. [2018-11-18 18:09:12,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 18:09:12,356 INFO L93 Difference]: Finished difference Result 55 states and 58 transitions. [2018-11-18 18:09:12,357 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-18 18:09:12,357 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 29 [2018-11-18 18:09:12,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 18:09:12,357 INFO L225 Difference]: With dead ends: 55 [2018-11-18 18:09:12,357 INFO L226 Difference]: Without dead ends: 44 [2018-11-18 18:09:12,358 INFO L604 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 [2018-11-18 18:09:12,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-11-18 18:09:12,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-11-18 18:09:12,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-11-18 18:09:12,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 46 transitions. [2018-11-18 18:09:12,364 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 46 transitions. Word has length 29 [2018-11-18 18:09:12,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 18:09:12,364 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 46 transitions. [2018-11-18 18:09:12,364 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-18 18:09:12,364 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 46 transitions. [2018-11-18 18:09:12,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-18 18:09:12,365 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 18:09:12,365 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 18:09:12,365 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 18:09:12,366 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 18:09:12,366 INFO L82 PathProgramCache]: Analyzing trace with hash 1274270794, now seen corresponding path program 1 times [2018-11-18 18:09:12,366 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 18:09:12,366 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9cc3bbf3-0b09-4cc1-9438-bf64ada299e6/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 [2018-11-18 18:09:12,370 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 18:09:13,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:09:13,639 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 18:09:13,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:09:13,724 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 18:09:13,752 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 18:09:13,752 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 18:09:13,752 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 18:09:13,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 18:09:13,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 18:09:13,753 INFO L87 Difference]: Start difference. First operand 44 states and 46 transitions. Second operand 7 states. [2018-11-18 18:09:20,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 18:09:20,861 INFO L93 Difference]: Finished difference Result 44 states and 46 transitions. [2018-11-18 18:09:20,862 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 18:09:20,862 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2018-11-18 18:09:20,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 18:09:20,862 INFO L225 Difference]: With dead ends: 44 [2018-11-18 18:09:20,862 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 18:09:20,863 INFO L604 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 [2018-11-18 18:09:20,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 18:09:20,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 18:09:20,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 18:09:20,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 18:09:20,864 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2018-11-18 18:09:20,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 18:09:20,864 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 18:09:20,864 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 18:09:20,864 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 18:09:20,864 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 18:09:20,867 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 18:09:21,027 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 35 [2018-11-18 18:09:21,184 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 18:09:21,185 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-18 18:09:21,185 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 18:09:21,185 INFO L425 ceAbstractionStarter]: For program point fabs_floatEXIT(lines 14 27) no Hoare annotation was computed. [2018-11-18 18:09:21,185 INFO L425 ceAbstractionStarter]: For program point L21(lines 21 25) no Hoare annotation was computed. [2018-11-18 18:09:21,185 INFO L425 ceAbstractionStarter]: For program point L21-2(lines 14 27) no Hoare annotation was computed. [2018-11-18 18:09:21,185 INFO L425 ceAbstractionStarter]: For program point L21-3(lines 21 25) no Hoare annotation was computed. [2018-11-18 18:09:21,185 INFO L425 ceAbstractionStarter]: For program point fabs_floatFINAL(lines 14 27) no Hoare annotation was computed. [2018-11-18 18:09:21,185 INFO L428 ceAbstractionStarter]: At program point fabs_floatENTRY(lines 14 27) the Hoare annotation is: true [2018-11-18 18:09:21,185 INFO L425 ceAbstractionStarter]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2018-11-18 18:09:21,185 INFO L428 ceAbstractionStarter]: At program point L16-3(lines 16 20) the Hoare annotation is: true [2018-11-18 18:09:21,185 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 18:09:21,185 INFO L421 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)))) [2018-11-18 18:09:21,185 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 18:09:21,185 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 18:09:21,185 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 142) no Hoare annotation was computed. [2018-11-18 18:09:21,185 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 129 147) the Hoare annotation is: true [2018-11-18 18:09:21,185 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 129 147) no Hoare annotation was computed. [2018-11-18 18:09:21,185 INFO L425 ceAbstractionStarter]: For program point L142(line 142) no Hoare annotation was computed. [2018-11-18 18:09:21,186 INFO L425 ceAbstractionStarter]: For program point L141(line 141) no Hoare annotation was computed. [2018-11-18 18:09:21,186 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 129 147) no Hoare annotation was computed. [2018-11-18 18:09:21,186 INFO L421 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)))) [2018-11-18 18:09:21,186 INFO L425 ceAbstractionStarter]: For program point L141-2(line 141) no Hoare annotation was computed. [2018-11-18 18:09:21,186 INFO L421 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)))) [2018-11-18 18:09:21,186 INFO L425 ceAbstractionStarter]: For program point L138-1(line 138) no Hoare annotation was computed. [2018-11-18 18:09:21,186 INFO L425 ceAbstractionStarter]: For program point L141-4(lines 141 144) no Hoare annotation was computed. [2018-11-18 18:09:21,186 INFO L425 ceAbstractionStarter]: For program point __signbit_floatFINAL(lines 117 127) no Hoare annotation was computed. [2018-11-18 18:09:21,186 INFO L425 ceAbstractionStarter]: For program point L120-1(lines 120 124) no Hoare annotation was computed. [2018-11-18 18:09:21,186 INFO L421 ceAbstractionStarter]: At program point L120-3(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))))) [2018-11-18 18:09:21,186 INFO L425 ceAbstractionStarter]: For program point L120-4(lines 120 124) no Hoare annotation was computed. [2018-11-18 18:09:21,186 INFO L428 ceAbstractionStarter]: At program point __signbit_floatENTRY(lines 117 127) the Hoare annotation is: true [2018-11-18 18:09:21,186 INFO L425 ceAbstractionStarter]: For program point __signbit_floatEXIT(lines 117 127) no Hoare annotation was computed. [2018-11-18 18:09:21,186 INFO L425 ceAbstractionStarter]: For program point L64(lines 64 65) no Hoare annotation was computed. [2018-11-18 18:09:21,186 INFO L428 ceAbstractionStarter]: At program point atan_floatENTRY(lines 53 115) the Hoare annotation is: true [2018-11-18 18:09:21,186 INFO L425 ceAbstractionStarter]: For program point atan_floatFINAL(lines 53 115) no Hoare annotation was computed. [2018-11-18 18:09:21,186 INFO L425 ceAbstractionStarter]: For program point L73(lines 73 74) no Hoare annotation was computed. [2018-11-18 18:09:21,186 INFO L425 ceAbstractionStarter]: For program point L57-1(lines 57 61) no Hoare annotation was computed. [2018-11-18 18:09:21,187 INFO L421 ceAbstractionStarter]: At program point L57-3(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))))) [2018-11-18 18:09:21,187 INFO L425 ceAbstractionStarter]: For program point L57-4(lines 57 61) no Hoare annotation was computed. [2018-11-18 18:09:21,187 INFO L421 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))))) [2018-11-18 18:09:21,187 INFO L425 ceAbstractionStarter]: For program point L78-1(line 78) no Hoare annotation was computed. [2018-11-18 18:09:21,187 INFO L425 ceAbstractionStarter]: For program point L66(lines 66 69) no Hoare annotation was computed. [2018-11-18 18:09:21,187 INFO L425 ceAbstractionStarter]: For program point L79(lines 79 95) no Hoare annotation was computed. [2018-11-18 18:09:21,187 INFO L425 ceAbstractionStarter]: For program point L71(lines 71 96) no Hoare annotation was computed. [2018-11-18 18:09:21,187 INFO L425 ceAbstractionStarter]: For program point atan_floatEXIT(lines 53 115) no Hoare annotation was computed. [2018-11-18 18:09:21,187 INFO L425 ceAbstractionStarter]: For program point L63(lines 63 70) no Hoare annotation was computed. [2018-11-18 18:09:21,187 INFO L425 ceAbstractionStarter]: For program point L88(lines 88 94) no Hoare annotation was computed. [2018-11-18 18:09:21,187 INFO L425 ceAbstractionStarter]: For program point L88-2(lines 71 96) no Hoare annotation was computed. [2018-11-18 18:09:21,187 INFO L425 ceAbstractionStarter]: For program point L113(line 113) no Hoare annotation was computed. [2018-11-18 18:09:21,187 INFO L425 ceAbstractionStarter]: For program point L80(lines 80 86) no Hoare annotation was computed. [2018-11-18 18:09:21,187 INFO L425 ceAbstractionStarter]: For program point L113-2(line 113) no Hoare annotation was computed. [2018-11-18 18:09:21,187 INFO L425 ceAbstractionStarter]: For program point L109(lines 109 114) no Hoare annotation was computed. [2018-11-18 18:09:21,187 INFO L425 ceAbstractionStarter]: For program point L72(lines 72 75) no Hoare annotation was computed. [2018-11-18 18:09:21,187 INFO L425 ceAbstractionStarter]: For program point L72-2(lines 72 75) no Hoare annotation was computed. [2018-11-18 18:09:21,192 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 18:09:21,192 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 18:09:21,193 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 18:09:21,193 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 18:09:21,195 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 18:09:21,195 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 18:09:21,195 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 18:09:21,196 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 18:09:21,196 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 18:09:21,197 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 18:09:21,197 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 18:09:21,197 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 18:09:21,197 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 18:09:21,197 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 18:09:21,197 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 18:09:21,197 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 18:09:21,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 06:09:21 BoogieIcfgContainer [2018-11-18 18:09:21,198 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 18:09:21,199 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 18:09:21,199 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 18:09:21,199 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 18:09:21,199 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:08:19" (3/4) ... [2018-11-18 18:09:21,201 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 18:09:21,205 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 18:09:21,205 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_float [2018-11-18 18:09:21,205 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 18:09:21,205 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_float [2018-11-18 18:09:21,205 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure atan_float [2018-11-18 18:09:21,210 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 42 nodes and edges [2018-11-18 18:09:21,210 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2018-11-18 18:09:21,210 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-18 18:09:21,211 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 18:09:21,227 WARN L220 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))) [2018-11-18 18:09:21,227 WARN L220 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))) [2018-11-18 18:09:21,251 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_9cc3bbf3-0b09-4cc1-9438-bf64ada299e6/bin-2019/utaipan/witness.graphml [2018-11-18 18:09:21,251 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 18:09:21,252 INFO L168 Benchmark]: Toolchain (without parser) took 69182.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 188.2 MB). Free memory was 953.2 MB in the beginning and 1.2 GB in the end (delta: -203.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 18:09:21,253 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 18:09:21,253 INFO L168 Benchmark]: CACSL2BoogieTranslator took 276.87 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-18 18:09:21,253 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.88 ms. Allocated memory is still 1.0 GB. Free memory was 937.1 MB in the beginning and 931.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 18:09:21,255 INFO L168 Benchmark]: Boogie Preprocessor took 90.81 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.0 MB). Free memory was 931.8 MB in the beginning and 1.1 GB in the end (delta: -152.6 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. [2018-11-18 18:09:21,255 INFO L168 Benchmark]: RCFGBuilder took 6851.21 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: 42.6 MB). Peak memory consumption was 42.6 MB. Max. memory is 11.5 GB. [2018-11-18 18:09:21,255 INFO L168 Benchmark]: TraceAbstraction took 61883.94 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 90.2 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -115.0 MB). Peak memory consumption was 305.0 MB. Max. memory is 11.5 GB. [2018-11-18 18:09:21,256 INFO L168 Benchmark]: Witness Printer took 52.92 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 18:09:21,257 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 276.87 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 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 23.88 ms. Allocated memory is still 1.0 GB. Free memory was 937.1 MB in the beginning and 931.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 90.81 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.0 MB). Free memory was 931.8 MB in the beginning and 1.1 GB in the end (delta: -152.6 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 6851.21 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: 42.6 MB). Peak memory consumption was 42.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 61883.94 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 90.2 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -115.0 MB). Peak memory consumption was 305.0 MB. Max. memory is 11.5 GB. * Witness Printer took 52.92 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: 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: 57]: Loop Invariant [2018-11-18 18:09:21,261 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 18:09:21,261 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 18:09:21,262 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 18:09:21,262 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 18:09:21,262 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 18:09:21,263 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 18:09:21,263 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 18:09:21,263 WARN L387 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: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 120]: Loop Invariant [2018-11-18 18:09:21,263 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 18:09:21,263 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 18:09:21,264 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 18:09:21,264 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 18:09:21,264 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 18:09:21,264 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 18:09:21,264 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 18:09:21,264 WARN L387 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, 61.8s OverallTime, 7 OverallIterations, 1 TraceHistogramMax, 56.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.3s HoareAnnotationTime, HoareTripleCheckerStatistics: 303 SDtfs, 220 SDslu, 1103 SDs, 0 SdLazy, 355 SolverSat, 28 SolverUnsat, 12 SolverUnknown, 0 SolverNotchecked, 52.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 183 GetRequests, 125 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 2.4s 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, 5 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, 3.4s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 167 NumberOfCodeBlocks, 167 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 160 ConstructedInterpolants, 24 QuantifiedInterpolants, 25696 SizeOfPredicates, 25 NumberOfNonLiveVariables, 859 ConjunctsInSsa, 46 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...