./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0480_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_191cacac-59fe-4cf2-96c8-709a597233c3/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_191cacac-59fe-4cf2-96c8-709a597233c3/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_191cacac-59fe-4cf2-96c8-709a597233c3/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_191cacac-59fe-4cf2-96c8-709a597233c3/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0480_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_191cacac-59fe-4cf2-96c8-709a597233c3/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_191cacac-59fe-4cf2-96c8-709a597233c3/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 8015c985f157600a44233f2d61865f454dda9bb9 ........................................................................................................................................................................................................................................................................................................................... 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_191cacac-59fe-4cf2-96c8-709a597233c3/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_191cacac-59fe-4cf2-96c8-709a597233c3/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_191cacac-59fe-4cf2-96c8-709a597233c3/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_191cacac-59fe-4cf2-96c8-709a597233c3/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0480_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_191cacac-59fe-4cf2-96c8-709a597233c3/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_191cacac-59fe-4cf2-96c8-709a597233c3/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 8015c985f157600a44233f2d61865f454dda9bb9 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 15:24:59,798 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 15:24:59,799 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 15:24:59,808 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 15:24:59,808 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 15:24:59,809 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 15:24:59,810 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 15:24:59,811 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 15:24:59,812 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 15:24:59,812 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 15:24:59,813 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 15:24:59,813 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 15:24:59,814 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 15:24:59,814 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 15:24:59,815 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 15:24:59,816 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 15:24:59,816 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 15:24:59,817 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 15:24:59,819 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 15:24:59,820 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 15:24:59,820 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 15:24:59,821 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 15:24:59,823 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 15:24:59,823 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 15:24:59,823 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 15:24:59,824 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 15:24:59,825 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 15:24:59,826 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 15:24:59,827 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 15:24:59,829 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 15:24:59,829 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 15:24:59,829 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 15:24:59,830 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 15:24:59,830 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 15:24:59,832 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 15:24:59,832 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 15:24:59,833 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_191cacac-59fe-4cf2-96c8-709a597233c3/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 15:24:59,846 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 15:24:59,846 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 15:24:59,847 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 15:24:59,847 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 15:24:59,848 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 15:24:59,848 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 15:24:59,848 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 15:24:59,848 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 15:24:59,848 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 15:24:59,848 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 15:24:59,849 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 15:24:59,849 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 15:24:59,849 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 15:24:59,850 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 15:24:59,851 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 15:24:59,851 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 15:24:59,851 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 15:24:59,851 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 15:24:59,851 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 15:24:59,851 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 15:24:59,852 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 15:24:59,852 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 15:24:59,852 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 15:24:59,852 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 15:24:59,852 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 15:24:59,852 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 15:24:59,853 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 15:24:59,853 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 15:24:59,853 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 15:24:59,853 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 15:24:59,853 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 15:24:59,853 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 15:24:59,854 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 15:24:59,854 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 15:24:59,854 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 15:24:59,854 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 15:24:59,857 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 15:24:59,857 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_191cacac-59fe-4cf2-96c8-709a597233c3/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 -> 8015c985f157600a44233f2d61865f454dda9bb9 [2018-11-18 15:24:59,888 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 15:24:59,899 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 15:24:59,903 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 15:24:59,904 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 15:24:59,904 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 15:24:59,905 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_191cacac-59fe-4cf2-96c8-709a597233c3/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0480_true-unreach-call.c [2018-11-18 15:24:59,961 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_191cacac-59fe-4cf2-96c8-709a597233c3/bin-2019/utaipan/data/c2fa08efc/8b67ee38cb244399a365c6df1758ae10/FLAGdeff9cf42 [2018-11-18 15:25:00,333 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 15:25:00,334 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_191cacac-59fe-4cf2-96c8-709a597233c3/sv-benchmarks/c/float-newlib/float_req_bl_0480_true-unreach-call.c [2018-11-18 15:25:00,341 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_191cacac-59fe-4cf2-96c8-709a597233c3/bin-2019/utaipan/data/c2fa08efc/8b67ee38cb244399a365c6df1758ae10/FLAGdeff9cf42 [2018-11-18 15:25:00,353 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_191cacac-59fe-4cf2-96c8-709a597233c3/bin-2019/utaipan/data/c2fa08efc/8b67ee38cb244399a365c6df1758ae10 [2018-11-18 15:25:00,356 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 15:25:00,357 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 15:25:00,358 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 15:25:00,358 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 15:25:00,361 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 15:25:00,362 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:25:00" (1/1) ... [2018-11-18 15:25:00,364 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bba66d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:25:00, skipping insertion in model container [2018-11-18 15:25:00,364 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:25:00" (1/1) ... [2018-11-18 15:25:00,373 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 15:25:00,395 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 15:25:00,566 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:25:00,570 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 15:25:00,601 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:25:00,654 INFO L195 MainTranslator]: Completed translation [2018-11-18 15:25:00,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:25:00 WrapperNode [2018-11-18 15:25:00,654 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 15:25:00,655 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 15:25:00,655 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 15:25:00,655 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 15:25:00,662 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:25:00" (1/1) ... [2018-11-18 15:25:00,672 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:25:00" (1/1) ... [2018-11-18 15:25:00,677 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 15:25:00,677 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 15:25:00,678 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 15:25:00,678 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 15:25:00,683 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:25:00" (1/1) ... [2018-11-18 15:25:00,683 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:25:00" (1/1) ... [2018-11-18 15:25:00,686 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:25:00" (1/1) ... [2018-11-18 15:25:00,686 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:25:00" (1/1) ... [2018-11-18 15:25:00,698 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:25:00" (1/1) ... [2018-11-18 15:25:00,704 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:25:00" (1/1) ... [2018-11-18 15:25:00,706 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:25:00" (1/1) ... [2018-11-18 15:25:00,712 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 15:25:00,713 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 15:25:00,713 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 15:25:00,713 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 15:25:00,714 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:25:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_191cacac-59fe-4cf2-96c8-709a597233c3/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 15:25:00,753 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_acosf [2018-11-18 15:25:00,753 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_acosf [2018-11-18 15:25:00,753 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 15:25:00,753 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 15:25:00,753 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-18 15:25:00,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 15:25:00,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 15:25:00,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 15:25:00,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-18 15:25:00,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 15:25:00,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 15:25:00,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 15:25:00,754 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 15:25:00,754 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-11-18 15:25:00,754 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-11-18 15:25:00,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 15:25:00,755 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-11-18 15:25:00,755 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-11-18 15:25:01,051 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 15:25:01,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:25:01 BoogieIcfgContainer [2018-11-18 15:25:01,052 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 15:25:01,052 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 15:25:01,052 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 15:25:01,054 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 15:25:01,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 03:25:00" (1/3) ... [2018-11-18 15:25:01,055 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49a7e86c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:25:01, skipping insertion in model container [2018-11-18 15:25:01,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:25:00" (2/3) ... [2018-11-18 15:25:01,055 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49a7e86c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:25:01, skipping insertion in model container [2018-11-18 15:25:01,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:25:01" (3/3) ... [2018-11-18 15:25:01,057 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0480_true-unreach-call.c [2018-11-18 15:25:01,065 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 15:25:01,070 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 15:25:01,078 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 15:25:01,097 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 15:25:01,097 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 15:25:01,097 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 15:25:01,098 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 15:25:01,098 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 15:25:01,098 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 15:25:01,098 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 15:25:01,098 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 15:25:01,109 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states. [2018-11-18 15:25:01,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-18 15:25:01,113 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:25:01,113 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 15:25:01,115 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:25:01,120 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:25:01,120 INFO L82 PathProgramCache]: Analyzing trace with hash -1761024876, now seen corresponding path program 1 times [2018-11-18 15:25:01,122 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:25:01,155 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:25:01,155 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:25:01,155 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:25:01,156 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:25:01,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:25:01,229 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 15:25:01,230 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:25:01,231 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 15:25:01,231 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:25:01,234 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 15:25:01,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 15:25:01,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 15:25:01,243 INFO L87 Difference]: Start difference. First operand 73 states. Second operand 2 states. [2018-11-18 15:25:01,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:25:01,261 INFO L93 Difference]: Finished difference Result 138 states and 207 transitions. [2018-11-18 15:25:01,261 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 15:25:01,262 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-11-18 15:25:01,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:25:01,270 INFO L225 Difference]: With dead ends: 138 [2018-11-18 15:25:01,271 INFO L226 Difference]: Without dead ends: 69 [2018-11-18 15:25:01,274 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 15:25:01,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2018-11-18 15:25:01,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2018-11-18 15:25:01,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-11-18 15:25:01,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 87 transitions. [2018-11-18 15:25:01,304 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 87 transitions. Word has length 18 [2018-11-18 15:25:01,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:25:01,304 INFO L480 AbstractCegarLoop]: Abstraction has 69 states and 87 transitions. [2018-11-18 15:25:01,304 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 15:25:01,304 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 87 transitions. [2018-11-18 15:25:01,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-18 15:25:01,305 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:25:01,305 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 15:25:01,305 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:25:01,306 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:25:01,306 INFO L82 PathProgramCache]: Analyzing trace with hash -844276980, now seen corresponding path program 1 times [2018-11-18 15:25:01,306 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:25:01,307 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:25:01,307 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:25:01,307 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:25:01,307 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:25:01,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:25:01,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:25:01,378 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 15:25:01,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 03:25:01 BoogieIcfgContainer [2018-11-18 15:25:01,406 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 15:25:01,407 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 15:25:01,407 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 15:25:01,407 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 15:25:01,407 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:25:01" (3/4) ... [2018-11-18 15:25:01,410 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 15:25:01,410 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 15:25:01,411 INFO L168 Benchmark]: Toolchain (without parser) took 1054.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 959.1 MB in the beginning and 1.1 GB in the end (delta: -113.6 MB). Peak memory consumption was 34.3 MB. Max. memory is 11.5 GB. [2018-11-18 15:25:01,412 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:25:01,412 INFO L168 Benchmark]: CACSL2BoogieTranslator took 296.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 959.1 MB in the beginning and 1.1 GB in the end (delta: -186.5 MB). Peak memory consumption was 31.2 MB. Max. memory is 11.5 GB. [2018-11-18 15:25:01,413 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-18 15:25:01,413 INFO L168 Benchmark]: Boogie Preprocessor took 35.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-18 15:25:01,414 INFO L168 Benchmark]: RCFGBuilder took 338.88 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: 29.3 MB). Peak memory consumption was 29.3 MB. Max. memory is 11.5 GB. [2018-11-18 15:25:01,414 INFO L168 Benchmark]: TraceAbstraction took 354.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 36.9 MB). Peak memory consumption was 36.9 MB. Max. memory is 11.5 GB. [2018-11-18 15:25:01,415 INFO L168 Benchmark]: Witness Printer took 3.39 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 15:25:01,417 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 296.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 959.1 MB in the beginning and 1.1 GB in the end (delta: -186.5 MB). Peak memory consumption was 31.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 22.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 35.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 338.88 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: 29.3 MB). Peak memory consumption was 29.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 354.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 36.9 MB). Peak memory consumption was 36.9 MB. Max. memory is 11.5 GB. * Witness Printer took 3.39 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.traceabstraction: - UnprovableResult [Line: 182]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 181, overapproximation of someUnaryDOUBLEoperation at line 84, overapproximation of bitwiseAnd at line 98. Possible FailurePath: [L12] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L81-L88] static const float one_acos = 1.0000000000e+00, pi = 3.1415925026e+00, pio2_hi_acos = 1.5707962513e+00, pio2_lo_acos = 7.5497894159e-08, pS0_acos = 1.6666667163e-01, pS1_acos = -3.2556581497e-01, pS2_acos = 2.0121252537e-01, pS3_acos = -4.0055535734e-02, pS4_acos = 7.9153501429e-04, pS5_acos = 3.4793309169e-05, qS1_acos = -2.4033949375e+00, qS2_acos = 2.0209457874e+00, qS3_acos = -6.8828397989e-01, qS4_acos = 7.7038154006e-02; VAL [\old(one_acos)=4294967315, \old(one_sqrt)=4294967306, \old(pi)=4294967309, \old(pi)=4294967305, \old(pi)=4294967318, \old(pS0_acos)=4294967300, \old(pS1_acos)=4294967316, \old(pS2_acos)=4294967317, \old(pS3_acos)=4294967303, \old(pS4_acos)=4294967308, \old(pS5_acos)=4294967319, \old(qS1_acos)=4294967302, \old(qS2_acos)=4294967310, \old(qS3_acos)=4294967313, \old(qS4_acos)=4294967304, \old(tiny_sqrt)=4294967314, one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L177] float x = 1.0f; VAL [one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=1] [L178] CALL, EXPR __ieee754_acosf(x) VAL [\old(x)=1, one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L91] float z, p, q, r, w, s, c, df; [L92] __int32_t hx, ix; VAL [\old(x)=1, one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=1] [L94] FCALL ieee_float_shape_type gf_u; [L95] FCALL gf_u.value = (x) [L96] EXPR, FCALL gf_u.word [L96] (hx) = gf_u.word [L97] COND FALSE !(0) VAL [\old(x)=1, hx=3, one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=15707962513/10000000000, pi=75497894159/1000000000000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=1] [L98] ix = hx & 0x7fffffff VAL [\old(x)=1, hx=3, one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=1] [L99] COND TRUE ix == 0x3f800000 VAL [\old(x)=1, hx=3, ix=1065353216, one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=1] [L100] COND TRUE hx > 0 [L101] RET return 0.0; VAL [\old(x)=1, \result=0, hx=3, ix=1065353216, one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=1] [L178] EXPR __ieee754_acosf(x) VAL [__ieee754_acosf(x)=0, one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=1] [L178] float res = __ieee754_acosf(x); [L181] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, res=0, res == 0.0f && __signbit_float(res) == 0=0, tiny_sqrt=1/1000000000000000000000000000000, x=1] [L181] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L182] __VERIFIER_error() VAL [one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, res=0, tiny_sqrt=1/1000000000000000000000000000000, x=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 73 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 91 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=73occurred 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 15:25:03,001 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 15:25:03,003 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 15:25:03,012 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 15:25:03,012 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 15:25:03,013 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 15:25:03,014 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 15:25:03,016 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 15:25:03,017 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 15:25:03,018 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 15:25:03,018 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 15:25:03,019 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 15:25:03,020 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 15:25:03,020 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 15:25:03,021 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 15:25:03,022 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 15:25:03,023 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 15:25:03,024 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 15:25:03,026 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 15:25:03,027 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 15:25:03,028 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 15:25:03,029 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 15:25:03,031 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 15:25:03,031 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 15:25:03,031 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 15:25:03,032 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 15:25:03,033 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 15:25:03,034 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 15:25:03,034 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 15:25:03,035 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 15:25:03,035 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 15:25:03,036 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 15:25:03,036 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 15:25:03,036 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 15:25:03,037 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 15:25:03,038 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 15:25:03,038 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_191cacac-59fe-4cf2-96c8-709a597233c3/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-18 15:25:03,051 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 15:25:03,051 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 15:25:03,052 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 15:25:03,052 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 15:25:03,052 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 15:25:03,052 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 15:25:03,053 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 15:25:03,053 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 15:25:03,053 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 15:25:03,053 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 15:25:03,054 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 15:25:03,054 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 15:25:03,054 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 15:25:03,054 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 15:25:03,054 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 15:25:03,055 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 15:25:03,055 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 15:25:03,055 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 15:25:03,055 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 15:25:03,055 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 15:25:03,055 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 15:25:03,055 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 15:25:03,056 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 15:25:03,056 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 15:25:03,056 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 15:25:03,056 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 15:25:03,056 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 15:25:03,056 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 15:25:03,057 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 15:25:03,057 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 15:25:03,057 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 15:25:03,057 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-18 15:25:03,057 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 15:25:03,057 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 15:25:03,058 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 15:25:03,058 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_191cacac-59fe-4cf2-96c8-709a597233c3/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 -> 8015c985f157600a44233f2d61865f454dda9bb9 [2018-11-18 15:25:03,095 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 15:25:03,106 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 15:25:03,109 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 15:25:03,111 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 15:25:03,111 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 15:25:03,112 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_191cacac-59fe-4cf2-96c8-709a597233c3/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0480_true-unreach-call.c [2018-11-18 15:25:03,167 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_191cacac-59fe-4cf2-96c8-709a597233c3/bin-2019/utaipan/data/4ab87bb8a/531a13ee99af41fd893da0de8d374d86/FLAG49371243d [2018-11-18 15:25:03,528 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 15:25:03,528 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_191cacac-59fe-4cf2-96c8-709a597233c3/sv-benchmarks/c/float-newlib/float_req_bl_0480_true-unreach-call.c [2018-11-18 15:25:03,533 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_191cacac-59fe-4cf2-96c8-709a597233c3/bin-2019/utaipan/data/4ab87bb8a/531a13ee99af41fd893da0de8d374d86/FLAG49371243d [2018-11-18 15:25:03,542 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_191cacac-59fe-4cf2-96c8-709a597233c3/bin-2019/utaipan/data/4ab87bb8a/531a13ee99af41fd893da0de8d374d86 [2018-11-18 15:25:03,544 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 15:25:03,545 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 15:25:03,546 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 15:25:03,546 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 15:25:03,549 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 15:25:03,549 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:25:03" (1/1) ... [2018-11-18 15:25:03,551 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56f8f505 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:25:03, skipping insertion in model container [2018-11-18 15:25:03,551 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:25:03" (1/1) ... [2018-11-18 15:25:03,559 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 15:25:03,585 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 15:25:03,773 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:25:03,779 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 15:25:03,827 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:25:03,848 INFO L195 MainTranslator]: Completed translation [2018-11-18 15:25:03,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:25:03 WrapperNode [2018-11-18 15:25:03,848 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 15:25:03,849 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 15:25:03,849 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 15:25:03,849 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 15:25:03,856 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:25:03" (1/1) ... [2018-11-18 15:25:03,868 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:25:03" (1/1) ... [2018-11-18 15:25:03,874 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 15:25:03,875 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 15:25:03,875 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 15:25:03,875 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 15:25:03,924 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:25:03" (1/1) ... [2018-11-18 15:25:03,924 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:25:03" (1/1) ... [2018-11-18 15:25:03,929 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:25:03" (1/1) ... [2018-11-18 15:25:03,929 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:25:03" (1/1) ... [2018-11-18 15:25:03,945 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:25:03" (1/1) ... [2018-11-18 15:25:03,952 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:25:03" (1/1) ... [2018-11-18 15:25:03,955 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:25:03" (1/1) ... [2018-11-18 15:25:03,959 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 15:25:03,959 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 15:25:03,959 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 15:25:03,959 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 15:25:03,960 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:25:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_191cacac-59fe-4cf2-96c8-709a597233c3/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 15:25:04,001 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_acosf [2018-11-18 15:25:04,001 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_acosf [2018-11-18 15:25:04,001 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 15:25:04,001 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 15:25:04,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-18 15:25:04,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 15:25:04,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 15:25:04,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 15:25:04,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 15:25:04,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 15:25:04,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 15:25:04,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-18 15:25:04,002 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-11-18 15:25:04,002 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-11-18 15:25:04,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 15:25:04,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 15:25:04,003 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-11-18 15:25:04,003 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-11-18 15:25:04,134 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 15:25:13,472 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 15:25:13,735 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 15:25:13,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:25:13 BoogieIcfgContainer [2018-11-18 15:25:13,736 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 15:25:13,736 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 15:25:13,736 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 15:25:13,739 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 15:25:13,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 03:25:03" (1/3) ... [2018-11-18 15:25:13,739 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e8a1f09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:25:13, skipping insertion in model container [2018-11-18 15:25:13,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:25:03" (2/3) ... [2018-11-18 15:25:13,740 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e8a1f09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:25:13, skipping insertion in model container [2018-11-18 15:25:13,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:25:13" (3/3) ... [2018-11-18 15:25:13,741 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0480_true-unreach-call.c [2018-11-18 15:25:13,748 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 15:25:13,754 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 15:25:13,765 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 15:25:13,788 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 15:25:13,789 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 15:25:13,789 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 15:25:13,789 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 15:25:13,789 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 15:25:13,789 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 15:25:13,790 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 15:25:13,790 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 15:25:13,790 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 15:25:13,804 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states. [2018-11-18 15:25:13,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-18 15:25:13,809 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:25:13,809 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 15:25:13,811 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:25:13,815 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:25:13,816 INFO L82 PathProgramCache]: Analyzing trace with hash -1761024876, now seen corresponding path program 1 times [2018-11-18 15:25:13,819 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 15:25:13,819 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_191cacac-59fe-4cf2-96c8-709a597233c3/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 15:25:13,824 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:25:13,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:25:13,900 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:25:13,917 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 15:25:13,917 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 15:25:13,927 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:25:13,927 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 15:25:13,929 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 15:25:13,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 15:25:13,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 15:25:13,940 INFO L87 Difference]: Start difference. First operand 73 states. Second operand 2 states. [2018-11-18 15:25:13,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:25:13,964 INFO L93 Difference]: Finished difference Result 138 states and 207 transitions. [2018-11-18 15:25:13,964 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 15:25:13,965 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-11-18 15:25:13,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:25:13,972 INFO L225 Difference]: With dead ends: 138 [2018-11-18 15:25:13,972 INFO L226 Difference]: Without dead ends: 69 [2018-11-18 15:25:13,975 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 15:25:13,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2018-11-18 15:25:14,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2018-11-18 15:25:14,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-11-18 15:25:14,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 87 transitions. [2018-11-18 15:25:14,017 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 87 transitions. Word has length 18 [2018-11-18 15:25:14,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:25:14,017 INFO L480 AbstractCegarLoop]: Abstraction has 69 states and 87 transitions. [2018-11-18 15:25:14,017 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 15:25:14,017 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 87 transitions. [2018-11-18 15:25:14,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-18 15:25:14,018 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:25:14,018 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 15:25:14,018 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:25:14,019 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:25:14,019 INFO L82 PathProgramCache]: Analyzing trace with hash -844276980, now seen corresponding path program 1 times [2018-11-18 15:25:14,019 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 15:25:14,019 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_191cacac-59fe-4cf2-96c8-709a597233c3/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 15:25:14,023 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:25:14,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:25:14,086 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:25:14,132 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 15:25:14,132 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 15:25:14,142 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:25:14,142 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 15:25:14,143 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 15:25:14,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 15:25:14,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 15:25:14,144 INFO L87 Difference]: Start difference. First operand 69 states and 87 transitions. Second operand 5 states. [2018-11-18 15:25:22,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:25:22,164 INFO L93 Difference]: Finished difference Result 76 states and 94 transitions. [2018-11-18 15:25:22,381 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 15:25:22,381 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2018-11-18 15:25:22,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:25:22,382 INFO L225 Difference]: With dead ends: 76 [2018-11-18 15:25:22,382 INFO L226 Difference]: Without dead ends: 73 [2018-11-18 15:25:22,383 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 15:25:22,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-11-18 15:25:22,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2018-11-18 15:25:22,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-11-18 15:25:22,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 91 transitions. [2018-11-18 15:25:22,390 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 91 transitions. Word has length 19 [2018-11-18 15:25:22,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:25:22,390 INFO L480 AbstractCegarLoop]: Abstraction has 73 states and 91 transitions. [2018-11-18 15:25:22,390 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 15:25:22,391 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 91 transitions. [2018-11-18 15:25:22,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-18 15:25:22,391 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:25:22,391 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 15:25:22,392 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:25:22,392 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:25:22,392 INFO L82 PathProgramCache]: Analyzing trace with hash 43226701, now seen corresponding path program 1 times [2018-11-18 15:25:22,392 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 15:25:22,393 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_191cacac-59fe-4cf2-96c8-709a597233c3/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 15:25:22,397 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:25:22,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:25:22,506 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:25:22,575 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 15:25:22,575 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 15:25:22,585 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:25:22,585 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 15:25:22,586 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 15:25:22,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 15:25:22,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 15:25:22,586 INFO L87 Difference]: Start difference. First operand 73 states and 91 transitions. Second operand 6 states. [2018-11-18 15:25:28,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:25:28,412 INFO L93 Difference]: Finished difference Result 90 states and 108 transitions. [2018-11-18 15:25:28,413 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 15:25:28,414 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2018-11-18 15:25:28,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:25:28,416 INFO L225 Difference]: With dead ends: 90 [2018-11-18 15:25:28,417 INFO L226 Difference]: Without dead ends: 75 [2018-11-18 15:25:28,417 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-18 15:25:28,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-11-18 15:25:28,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 73. [2018-11-18 15:25:28,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-11-18 15:25:28,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 90 transitions. [2018-11-18 15:25:28,426 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 90 transitions. Word has length 19 [2018-11-18 15:25:28,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:25:28,427 INFO L480 AbstractCegarLoop]: Abstraction has 73 states and 90 transitions. [2018-11-18 15:25:28,427 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 15:25:28,427 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 90 transitions. [2018-11-18 15:25:28,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-18 15:25:28,428 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:25:28,428 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 15:25:28,428 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:25:28,428 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:25:28,429 INFO L82 PathProgramCache]: Analyzing trace with hash -577608788, now seen corresponding path program 1 times [2018-11-18 15:25:28,429 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 15:25:28,429 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_191cacac-59fe-4cf2-96c8-709a597233c3/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 15:25:28,433 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:25:28,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:25:28,655 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:25:28,744 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 15:25:28,745 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 15:25:28,756 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:25:28,756 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 15:25:28,757 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 15:25:28,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 15:25:28,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 15:25:28,757 INFO L87 Difference]: Start difference. First operand 73 states and 90 transitions. Second operand 7 states. [2018-11-18 15:25:34,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:25:34,927 INFO L93 Difference]: Finished difference Result 88 states and 105 transitions. [2018-11-18 15:25:34,928 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 15:25:34,928 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-11-18 15:25:34,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:25:34,929 INFO L225 Difference]: With dead ends: 88 [2018-11-18 15:25:34,929 INFO L226 Difference]: Without dead ends: 66 [2018-11-18 15:25:34,929 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-11-18 15:25:34,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-11-18 15:25:34,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2018-11-18 15:25:34,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2018-11-18 15:25:34,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 79 transitions. [2018-11-18 15:25:34,935 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 79 transitions. Word has length 19 [2018-11-18 15:25:34,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:25:34,935 INFO L480 AbstractCegarLoop]: Abstraction has 66 states and 79 transitions. [2018-11-18 15:25:34,935 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 15:25:34,935 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 79 transitions. [2018-11-18 15:25:34,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-18 15:25:34,936 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:25:34,936 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 15:25:34,936 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:25:34,936 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:25:34,937 INFO L82 PathProgramCache]: Analyzing trace with hash -897589743, now seen corresponding path program 1 times [2018-11-18 15:25:34,937 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 15:25:34,937 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_191cacac-59fe-4cf2-96c8-709a597233c3/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 15:25:34,946 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:25:35,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:25:36,043 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:25:36,128 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 15:25:36,129 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 15:25:36,153 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:25:36,153 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 15:25:36,153 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 15:25:36,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 15:25:36,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 15:25:36,154 INFO L87 Difference]: Start difference. First operand 66 states and 79 transitions. Second operand 7 states. [2018-11-18 15:25:41,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:25:41,035 INFO L93 Difference]: Finished difference Result 81 states and 94 transitions. [2018-11-18 15:25:41,210 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 15:25:41,210 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2018-11-18 15:25:41,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:25:41,211 INFO L225 Difference]: With dead ends: 81 [2018-11-18 15:25:41,211 INFO L226 Difference]: Without dead ends: 65 [2018-11-18 15:25:41,212 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-11-18 15:25:41,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-11-18 15:25:41,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2018-11-18 15:25:41,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-11-18 15:25:41,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 77 transitions. [2018-11-18 15:25:41,216 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 77 transitions. Word has length 21 [2018-11-18 15:25:41,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:25:41,216 INFO L480 AbstractCegarLoop]: Abstraction has 65 states and 77 transitions. [2018-11-18 15:25:41,217 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 15:25:41,217 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 77 transitions. [2018-11-18 15:25:41,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-18 15:25:41,217 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:25:41,217 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] [2018-11-18 15:25:41,218 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:25:41,218 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:25:41,218 INFO L82 PathProgramCache]: Analyzing trace with hash -1721536431, now seen corresponding path program 1 times [2018-11-18 15:25:41,218 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 15:25:41,218 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_191cacac-59fe-4cf2-96c8-709a597233c3/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 15:25:41,222 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:25:41,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:25:41,286 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:25:41,438 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 15:25:41,438 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 15:25:41,447 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:25:41,447 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-18 15:25:41,448 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 15:25:41,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 15:25:41,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-11-18 15:25:41,448 INFO L87 Difference]: Start difference. First operand 65 states and 77 transitions. Second operand 10 states. [2018-11-18 15:25:43,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:25:43,888 INFO L93 Difference]: Finished difference Result 70 states and 82 transitions. [2018-11-18 15:25:43,888 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-18 15:25:43,889 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 27 [2018-11-18 15:25:43,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:25:43,890 INFO L225 Difference]: With dead ends: 70 [2018-11-18 15:25:43,890 INFO L226 Difference]: Without dead ends: 60 [2018-11-18 15:25:43,891 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2018-11-18 15:25:43,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-11-18 15:25:43,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2018-11-18 15:25:43,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-11-18 15:25:43,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 71 transitions. [2018-11-18 15:25:43,895 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 71 transitions. Word has length 27 [2018-11-18 15:25:43,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:25:43,895 INFO L480 AbstractCegarLoop]: Abstraction has 60 states and 71 transitions. [2018-11-18 15:25:43,896 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 15:25:43,896 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 71 transitions. [2018-11-18 15:25:43,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-18 15:25:43,896 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:25:43,897 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] [2018-11-18 15:25:43,897 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:25:43,897 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:25:43,897 INFO L82 PathProgramCache]: Analyzing trace with hash -1964280054, now seen corresponding path program 1 times [2018-11-18 15:25:43,897 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 15:25:43,898 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_191cacac-59fe-4cf2-96c8-709a597233c3/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 15:25:43,906 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:25:44,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:25:45,083 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:25:45,174 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 15:25:45,174 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 15:25:45,196 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:25:45,196 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 15:25:45,197 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 15:25:45,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 15:25:45,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 15:25:45,197 INFO L87 Difference]: Start difference. First operand 60 states and 71 transitions. Second operand 7 states. [2018-11-18 15:25:47,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:25:47,730 INFO L93 Difference]: Finished difference Result 60 states and 71 transitions. [2018-11-18 15:25:47,731 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 15:25:47,731 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 30 [2018-11-18 15:25:47,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:25:47,732 INFO L225 Difference]: With dead ends: 60 [2018-11-18 15:25:47,732 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 15:25:47,733 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-11-18 15:25:47,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 15:25:47,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 15:25:47,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 15:25:47,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 15:25:47,733 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 30 [2018-11-18 15:25:47,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:25:47,734 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 15:25:47,734 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 15:25:47,734 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 15:25:47,734 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 15:25:47,737 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 15:25:47,889 INFO L425 ceAbstractionStarter]: For program point L93-1(lines 93 97) no Hoare annotation was computed. [2018-11-18 15:25:47,889 INFO L421 ceAbstractionStarter]: At program point L93-3(lines 93 97) the Hoare annotation is: (= |__ieee754_acosf_#in~x| __ieee754_acosf_~x) [2018-11-18 15:25:47,889 INFO L425 ceAbstractionStarter]: For program point L93-4(lines 93 97) no Hoare annotation was computed. [2018-11-18 15:25:47,890 INFO L425 ceAbstractionStarter]: For program point __ieee754_acosfFINAL(lines 90 157) no Hoare annotation was computed. [2018-11-18 15:25:47,890 INFO L428 ceAbstractionStarter]: At program point __ieee754_acosfENTRY(lines 90 157) the Hoare annotation is: true [2018-11-18 15:25:47,890 INFO L421 ceAbstractionStarter]: At program point L127(line 127) the Hoare annotation is: (exists ((__ieee754_acosf_~hx~1 (_ BitVec 32))) (and (= |__ieee754_acosf_#in~x| (fp ((_ extract 31 31) __ieee754_acosf_~hx~1) ((_ extract 30 23) __ieee754_acosf_~hx~1) ((_ extract 22 0) __ieee754_acosf_~hx~1))) (not (= (bvadd (bvand (_ bv2147483647 32) __ieee754_acosf_~hx~1) (_ bv3229614080 32)) (_ bv0 32))))) [2018-11-18 15:25:47,890 INFO L425 ceAbstractionStarter]: For program point L127-1(line 127) no Hoare annotation was computed. [2018-11-18 15:25:47,890 INFO L425 ceAbstractionStarter]: For program point L119(lines 119 156) no Hoare annotation was computed. [2018-11-18 15:25:47,890 INFO L425 ceAbstractionStarter]: For program point L107(lines 107 156) no Hoare annotation was computed. [2018-11-18 15:25:47,890 INFO L425 ceAbstractionStarter]: For program point L136-1(lines 136 140) no Hoare annotation was computed. [2018-11-18 15:25:47,890 INFO L421 ceAbstractionStarter]: At program point L136-3(lines 136 140) the Hoare annotation is: (and (exists ((__ieee754_acosf_~hx~1 (_ BitVec 32))) (and (= (bvand (_ bv2147483647 32) __ieee754_acosf_~hx~1) __ieee754_acosf_~ix~1) (= |__ieee754_acosf_#in~x| (fp ((_ extract 31 31) __ieee754_acosf_~hx~1) ((_ extract 30 23) __ieee754_acosf_~hx~1) ((_ extract 22 0) __ieee754_acosf_~hx~1))))) (= |__ieee754_acosf_#in~x| __ieee754_acosf_~x) (= |__ieee754_acosf_#in~x| (fp ((_ extract 31 31) __ieee754_acosf_~hx~1) ((_ extract 30 23) __ieee754_acosf_~hx~1) ((_ extract 22 0) __ieee754_acosf_~hx~1))) (exists ((__ieee754_acosf_~hx~1 (_ BitVec 32))) (and (= |__ieee754_acosf_#in~x| (fp ((_ extract 31 31) __ieee754_acosf_~hx~1) ((_ extract 30 23) __ieee754_acosf_~hx~1) ((_ extract 22 0) __ieee754_acosf_~hx~1))) (not (= (bvadd (bvand (_ bv2147483647 32) __ieee754_acosf_~hx~1) (_ bv3229614080 32)) (_ bv0 32)))))) [2018-11-18 15:25:47,890 INFO L425 ceAbstractionStarter]: For program point L99(lines 99 106) no Hoare annotation was computed. [2018-11-18 15:25:47,890 INFO L425 ceAbstractionStarter]: For program point __ieee754_acosfEXIT(lines 90 157) no Hoare annotation was computed. [2018-11-18 15:25:47,891 INFO L425 ceAbstractionStarter]: For program point L141(lines 141 145) no Hoare annotation was computed. [2018-11-18 15:25:47,891 INFO L425 ceAbstractionStarter]: For program point L108(lines 108 109) no Hoare annotation was computed. [2018-11-18 15:25:47,891 INFO L425 ceAbstractionStarter]: For program point L141-2(lines 131 156) no Hoare annotation was computed. [2018-11-18 15:25:47,891 INFO L425 ceAbstractionStarter]: For program point L141-3(lines 141 145) no Hoare annotation was computed. [2018-11-18 15:25:47,891 INFO L425 ceAbstractionStarter]: For program point L104(lines 104 106) no Hoare annotation was computed. [2018-11-18 15:25:47,891 INFO L425 ceAbstractionStarter]: For program point L100(lines 100 103) no Hoare annotation was computed. [2018-11-18 15:25:47,891 INFO L421 ceAbstractionStarter]: At program point L134(line 134) the Hoare annotation is: (and (exists ((__ieee754_acosf_~hx~1 (_ BitVec 32))) (and (= (bvand (_ bv2147483647 32) __ieee754_acosf_~hx~1) __ieee754_acosf_~ix~1) (= |__ieee754_acosf_#in~x| (fp ((_ extract 31 31) __ieee754_acosf_~hx~1) ((_ extract 30 23) __ieee754_acosf_~hx~1) ((_ extract 22 0) __ieee754_acosf_~hx~1))))) (= |__ieee754_acosf_#in~x| __ieee754_acosf_~x) (= |__ieee754_acosf_#in~x| (fp ((_ extract 31 31) __ieee754_acosf_~hx~1) ((_ extract 30 23) __ieee754_acosf_~hx~1) ((_ extract 22 0) __ieee754_acosf_~hx~1))) (exists ((__ieee754_acosf_~hx~1 (_ BitVec 32))) (and (= |__ieee754_acosf_#in~x| (fp ((_ extract 31 31) __ieee754_acosf_~hx~1) ((_ extract 30 23) __ieee754_acosf_~hx~1) ((_ extract 22 0) __ieee754_acosf_~hx~1))) (not (= (bvadd (bvand (_ bv2147483647 32) __ieee754_acosf_~hx~1) (_ bv3229614080 32)) (_ bv0 32)))))) [2018-11-18 15:25:47,891 INFO L425 ceAbstractionStarter]: For program point L134-1(line 134) no Hoare annotation was computed. [2018-11-18 15:25:47,891 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 15:25:47,891 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-18 15:25:47,891 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 15:25:47,891 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 15:25:47,891 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 15:25:47,892 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 15:25:47,892 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 15:25:47,892 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 171 187) the Hoare annotation is: true [2018-11-18 15:25:47,892 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 171 187) no Hoare annotation was computed. [2018-11-18 15:25:47,892 INFO L425 ceAbstractionStarter]: For program point L182(line 182) no Hoare annotation was computed. [2018-11-18 15:25:47,892 INFO L425 ceAbstractionStarter]: For program point L181(line 181) no Hoare annotation was computed. [2018-11-18 15:25:47,892 INFO L421 ceAbstractionStarter]: At program point L181-1(line 181) the Hoare annotation is: (and (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) main_~res~0) |main_#t~short17| (= ((_ to_fp 8 24) roundNearestTiesToEven 1.0) main_~x~0)) [2018-11-18 15:25:47,892 INFO L425 ceAbstractionStarter]: For program point L181-2(line 181) no Hoare annotation was computed. [2018-11-18 15:25:47,892 INFO L421 ceAbstractionStarter]: At program point L178(line 178) the Hoare annotation is: (= ((_ to_fp 8 24) roundNearestTiesToEven 1.0) main_~x~0) [2018-11-18 15:25:47,893 INFO L425 ceAbstractionStarter]: For program point L178-1(line 178) no Hoare annotation was computed. [2018-11-18 15:25:47,893 INFO L425 ceAbstractionStarter]: For program point L181-4(lines 181 184) no Hoare annotation was computed. [2018-11-18 15:25:47,893 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 171 187) no Hoare annotation was computed. [2018-11-18 15:25:47,893 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 182) no Hoare annotation was computed. [2018-11-18 15:25:47,893 INFO L425 ceAbstractionStarter]: For program point L162-1(lines 162 166) no Hoare annotation was computed. [2018-11-18 15:25:47,893 INFO L421 ceAbstractionStarter]: At program point L162-3(lines 162 166) the Hoare annotation is: (= |__signbit_float_#in~x| __signbit_float_~x) [2018-11-18 15:25:47,893 INFO L425 ceAbstractionStarter]: For program point L162-4(lines 162 166) no Hoare annotation was computed. [2018-11-18 15:25:47,893 INFO L425 ceAbstractionStarter]: For program point __signbit_floatFINAL(lines 159 169) no Hoare annotation was computed. [2018-11-18 15:25:47,893 INFO L428 ceAbstractionStarter]: At program point __signbit_floatENTRY(lines 159 169) the Hoare annotation is: true [2018-11-18 15:25:47,893 INFO L425 ceAbstractionStarter]: For program point __signbit_floatEXIT(lines 159 169) no Hoare annotation was computed. [2018-11-18 15:25:47,893 INFO L425 ceAbstractionStarter]: For program point L35-2(lines 35 39) no Hoare annotation was computed. [2018-11-18 15:25:47,894 INFO L425 ceAbstractionStarter]: For program point L31(lines 31 32) no Hoare annotation was computed. [2018-11-18 15:25:47,894 INFO L425 ceAbstractionStarter]: For program point L52(lines 52 56) no Hoare annotation was computed. [2018-11-18 15:25:47,894 INFO L425 ceAbstractionStarter]: For program point L19-1(lines 19 23) no Hoare annotation was computed. [2018-11-18 15:25:47,894 INFO L425 ceAbstractionStarter]: For program point L52-2(lines 52 56) no Hoare annotation was computed. [2018-11-18 15:25:47,894 INFO L428 ceAbstractionStarter]: At program point L19-3(lines 19 23) the Hoare annotation is: true [2018-11-18 15:25:47,894 INFO L425 ceAbstractionStarter]: For program point L19-4(lines 19 23) no Hoare annotation was computed. [2018-11-18 15:25:47,894 INFO L425 ceAbstractionStarter]: For program point L73-1(lines 73 77) no Hoare annotation was computed. [2018-11-18 15:25:47,894 INFO L428 ceAbstractionStarter]: At program point L73-3(lines 73 77) the Hoare annotation is: true [2018-11-18 15:25:47,894 INFO L425 ceAbstractionStarter]: For program point L73-4(lines 73 77) no Hoare annotation was computed. [2018-11-18 15:25:47,894 INFO L425 ceAbstractionStarter]: For program point L36-1(lines 36 37) no Hoare annotation was computed. [2018-11-18 15:25:47,895 INFO L425 ceAbstractionStarter]: For program point L36-3(lines 36 37) no Hoare annotation was computed. [2018-11-18 15:25:47,895 INFO L425 ceAbstractionStarter]: For program point L65(lines 65 68) no Hoare annotation was computed. [2018-11-18 15:25:47,895 INFO L428 ceAbstractionStarter]: At program point L36-4(lines 36 37) the Hoare annotation is: true [2018-11-18 15:25:47,895 INFO L425 ceAbstractionStarter]: For program point L36-5(lines 36 37) no Hoare annotation was computed. [2018-11-18 15:25:47,895 INFO L425 ceAbstractionStarter]: For program point L61(lines 61 70) no Hoare annotation was computed. [2018-11-18 15:25:47,895 INFO L428 ceAbstractionStarter]: At program point __ieee754_sqrtfENTRY(lines 14 79) the Hoare annotation is: true [2018-11-18 15:25:47,895 INFO L425 ceAbstractionStarter]: For program point __ieee754_sqrtfFINAL(lines 14 79) no Hoare annotation was computed. [2018-11-18 15:25:47,895 INFO L425 ceAbstractionStarter]: For program point L29(lines 29 30) no Hoare annotation was computed. [2018-11-18 15:25:47,895 INFO L425 ceAbstractionStarter]: For program point __ieee754_sqrtfEXIT(lines 14 79) no Hoare annotation was computed. [2018-11-18 15:25:47,896 INFO L425 ceAbstractionStarter]: For program point L50-1(lines 50 59) no Hoare annotation was computed. [2018-11-18 15:25:47,896 INFO L428 ceAbstractionStarter]: At program point L50-3(lines 50 59) the Hoare annotation is: true [2018-11-18 15:25:47,896 INFO L425 ceAbstractionStarter]: For program point L50-4(lines 14 79) no Hoare annotation was computed. [2018-11-18 15:25:47,896 INFO L425 ceAbstractionStarter]: For program point L42(lines 42 43) no Hoare annotation was computed. [2018-11-18 15:25:47,896 INFO L425 ceAbstractionStarter]: For program point L42-2(lines 42 43) no Hoare annotation was computed. [2018-11-18 15:25:47,896 INFO L425 ceAbstractionStarter]: For program point L63(lines 63 69) no Hoare annotation was computed. [2018-11-18 15:25:47,896 INFO L425 ceAbstractionStarter]: For program point L26(lines 26 27) no Hoare annotation was computed. [2018-11-18 15:25:47,896 INFO L425 ceAbstractionStarter]: For program point L35(lines 35 39) no Hoare annotation was computed. [2018-11-18 15:25:47,906 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 15:25:47,906 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 15:25:47,907 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 15:25:47,907 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 15:25:47,907 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 15:25:47,907 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 15:25:47,908 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 15:25:47,908 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 15:25:47,909 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 15:25:47,909 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 15:25:47,909 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 15:25:47,909 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 15:25:47,910 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 15:25:47,910 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 15:25:47,910 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 15:25:47,910 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 15:25:47,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 03:25:47 BoogieIcfgContainer [2018-11-18 15:25:47,912 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 15:25:47,912 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 15:25:47,912 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 15:25:47,913 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 15:25:47,913 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:25:13" (3/4) ... [2018-11-18 15:25:47,918 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 15:25:47,925 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_acosf [2018-11-18 15:25:47,925 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 15:25:47,925 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 15:25:47,926 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_float [2018-11-18 15:25:47,926 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_sqrtf [2018-11-18 15:25:47,931 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 49 nodes and edges [2018-11-18 15:25:47,932 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2018-11-18 15:25:47,932 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-18 15:25:47,932 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-18 15:25:47,952 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-18 15:25:47,953 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-18 15:25:47,953 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\exists __ieee754_acosf_~hx~1 : bv32 :: ~bvand32(2147483647bv32, __ieee754_acosf_~hx~1) == ix && \old(x) == ~fp~LONGDOUBLE(__ieee754_acosf_~hx~1[31:31], __ieee754_acosf_~hx~1[30:23], __ieee754_acosf_~hx~1[22:0])) && \old(x) == x) && \old(x) == ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0])) && (\exists __ieee754_acosf_~hx~1 : bv32 :: \old(x) == ~fp~LONGDOUBLE(__ieee754_acosf_~hx~1[31:31], __ieee754_acosf_~hx~1[30:23], __ieee754_acosf_~hx~1[22:0]) && !(~bvadd64(~bvand32(2147483647bv32, __ieee754_acosf_~hx~1), 3229614080bv32) == 0bv32)) [2018-11-18 15:25:47,990 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_191cacac-59fe-4cf2-96c8-709a597233c3/bin-2019/utaipan/witness.graphml [2018-11-18 15:25:47,990 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 15:25:47,991 INFO L168 Benchmark]: Toolchain (without parser) took 44446.52 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.9 MB). Free memory was 949.7 MB in the beginning and 802.0 MB in the end (delta: 147.8 MB). Peak memory consumption was 252.6 MB. Max. memory is 11.5 GB. [2018-11-18 15:25:47,992 INFO L168 Benchmark]: CDTParser took 0.20 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 15:25:47,992 INFO L168 Benchmark]: CACSL2BoogieTranslator took 302.98 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 928.3 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-11-18 15:25:47,993 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.43 ms. Allocated memory is still 1.0 GB. Free memory is still 928.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:25:47,993 INFO L168 Benchmark]: Boogie Preprocessor took 84.23 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.9 MB). Free memory was 928.3 MB in the beginning and 1.1 GB in the end (delta: -163.6 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. [2018-11-18 15:25:47,993 INFO L168 Benchmark]: RCFGBuilder took 9776.80 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 40.6 MB). Peak memory consumption was 40.6 MB. Max. memory is 11.5 GB. [2018-11-18 15:25:47,994 INFO L168 Benchmark]: TraceAbstraction took 34175.70 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 808.9 MB in the end (delta: 242.4 MB). Peak memory consumption was 242.4 MB. Max. memory is 11.5 GB. [2018-11-18 15:25:47,994 INFO L168 Benchmark]: Witness Printer took 78.04 ms. Allocated memory is still 1.1 GB. Free memory was 808.9 MB in the beginning and 802.0 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-11-18 15:25:47,996 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 302.98 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 928.3 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.43 ms. Allocated memory is still 1.0 GB. Free memory is still 928.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 84.23 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.9 MB). Free memory was 928.3 MB in the beginning and 1.1 GB in the end (delta: -163.6 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 9776.80 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 40.6 MB). Peak memory consumption was 40.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 34175.70 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 808.9 MB in the end (delta: 242.4 MB). Peak memory consumption was 242.4 MB. Max. memory is 11.5 GB. * Witness Printer took 78.04 ms. Allocated memory is still 1.1 GB. Free memory was 808.9 MB in the beginning and 802.0 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 182]: 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: 19]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 93]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 162]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 73]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 136]: Loop Invariant [2018-11-18 15:25:48,000 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 15:25:48,000 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 15:25:48,000 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 15:25:48,000 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 15:25:48,001 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 15:25:48,001 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 15:25:48,001 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 15:25:48,001 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 15:25:48,001 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 15:25:48,002 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 15:25:48,002 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 15:25:48,002 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 15:25:48,002 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 15:25:48,002 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 15:25:48,003 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 15:25:48,003 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] Derived loop invariant: (((\exists __ieee754_acosf_~hx~1 : bv32 :: ~bvand32(2147483647bv32, __ieee754_acosf_~hx~1) == ix && \old(x) == ~fp~LONGDOUBLE(__ieee754_acosf_~hx~1[31:31], __ieee754_acosf_~hx~1[30:23], __ieee754_acosf_~hx~1[22:0])) && \old(x) == x) && \old(x) == ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0])) && (\exists __ieee754_acosf_~hx~1 : bv32 :: \old(x) == ~fp~LONGDOUBLE(__ieee754_acosf_~hx~1[31:31], __ieee754_acosf_~hx~1[30:23], __ieee754_acosf_~hx~1[22:0]) && !(~bvadd64(~bvand32(2147483647bv32, __ieee754_acosf_~hx~1), 3229614080bv32) == 0bv32)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 73 locations, 1 error locations. SAFE Result, 34.1s OverallTime, 7 OverallIterations, 1 TraceHistogramMax, 30.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 511 SDtfs, 164 SDslu, 1892 SDs, 0 SdLazy, 194 SolverSat, 14 SolverUnsat, 11 SolverUnknown, 0 SolverNotchecked, 27.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 161 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=73occurred 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 18 LocationsWithAnnotation, 43 PreInvPairs, 57 NumberOfFragments, 149 HoareAnnotationTreeSize, 43 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 18 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 2.5s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 153 NumberOfCodeBlocks, 153 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 146 ConstructedInterpolants, 22 QuantifiedInterpolants, 16763 SizeOfPredicates, 20 NumberOfNonLiveVariables, 727 ConjunctsInSsa, 39 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...